6 and -6
please give brainliest
This semester Hung Lee took four 3-credit courses at Pikes Peak Community College. She received an A in accounting and C’s in history, psychology, and algebra. What is her cumulative grade point average (assume A = 4 and C = 2)
The cumulative grade point average of Hung Lee is 2.5.
It is given in the question that:-
A = 4
B = 3
C = 2
Grade received in Accounting = A
Grade received in History = C
Grade received in Psychology = C
Grade received in Algebra = C
We have to find her cumulative grade point average.
We know that:-
The cumulative grade point average of Hung Lee will be:-
Sum of grade point averages in the all the courses/Total number of courses
Hence, we can write,
The cumulative grade point average of Hung Lee is given by:-
(4+2+2+2)/4 = 2.5
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Colton mowed 3 lawns in 6 hours. Fill out a table of equivalent ratios and plot the points on the coordinate axes provided.
the equivalent ratios will be 1 : 2 and 4 : 8.
We are given that:
Colton mowed 3 lawns in 6 hours.
We are also given the table:
Lawns Hours
____ 2
3 6
4 ____
We need to fill the table with the equivalent ratios.
We get the ratio between lawns: hours as = 3 : 6
= 1 : 2
So, for 2 hours, it will be 1 lawn
and for 4 lawns, it will be:
= 4 : 8
So, we get the table as:
Lawns Hours
1 2
3 6
4 8
Therefore, we get that, the equivalent ratios will be 1 : 2 and 4 : 8.
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plete the process of solving the equation. in the missing term and select the missing description. Simpli -2(c + 8) = -8 S Subtract 8 from both sides
Answer:
Divide both sides by -2
Step-by-step explanation:
-2(c+8) = -8
-2(c+8) / -2 = -8/-2
c + 8 = 4
c = -4
please help i am struggling
By using the equations of sides and angles and congruence properties, the values of x and y are equal to 34 and 8, respectively. (Correct choice: A)
How to find the values of the variables associated with two congruent trianglesHerein we find two triangles that are congruent when the share the same sides and angles in magnitudes and distribution. As triangle CDE and triangle LMN are congruent, then we have following relationships:
DE = LN (1)
CE = MN (2)
m ∠ D = m ∠ L (3)
m ∠ C = m ∠ M (4)
By (1):
2 · y + 1 = 17
2 · y = 16
y = 8
By (2):
MN = 4 · 8 - 3
MN = 29
By (3):
x + 17 = 51
x = 34
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A researcher at the center of disease control and prevention is studying the growth of a certain bacteria he starts his experiment with 300 bacteria that grow at a rate of 20% per hour
After a certain time of n hours, the number of bacteria inside the lab will be, 300 ( 1 + 1/5n ) ^ n.
This is a problem with compound interest calculation. Here we have to calculate the number of bacteria present at the center of disease control and prevention after a certain time of n hours.
We can solve this using a few steps.
Let's assume that,
The time interval is n hoursThe growth rate is 20%.The period is 1 hour.So, the number of times this rate is applied is n/1 = n times.The principal number is 300 bacteriaAs we all know the formula for compound interest is,
A = P (1 + r/n) ^ nt
Where,
A = final amount
P = initial principal number = 300 bacteria
r = growth rate = 20% = 20/100
n = number of times growth applied per period
t = number of periods elapsed = 1 hour
So,
A = 300 ( 1 + 20/ 100n ) ^ n = 300 ( 1 + 1/5n ) ^ n
Hence we can conclude that after n hours the number of bacteria inside the lab will be, 300 ( 1 + 1/5n ) ^ n.
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Correct question :
A researcher at the center for disease control and prevention is studying the growth of a certain bacteria he starts his experiment with 300 bacteria that grow at a rate of 20% per hour. After n hours, what will be the number?
Find the measure of <1 and <2
Answer:
Below in bold.
Step-by-step explanation:
< 1 = 122 degrees (alternate angles)
< 2 = 180 - 122
= 58 degrees (adjacent angles)
Use the number line to find the coordinate of P that represents the weighted average of the set of points such that Point C has a weight of 3, and point E has a weight of 5.
Using the number line to find the coordinate of P that represents the weighted average of the set of points we see that the value of 6 represents the weighted average of the coordinates.
How exactly does one determine the weighted average?The ordinary arithmetic mean is comparable to a weighted arithmetic mean. The primary difference between the two is that the weighted arithmetic mean takes into account the fact that not all of the data points contribute the same amount to the overall average; rather, some data points contribute more than others.
Generally, the equation for Average weight is mathematically given as
[tex]Av=\frac{ (3 * 2 + 8 * 3)}{(2 + 3)}[/tex]
Consider the quotient in question.
Average weight = 6
As a direct result of this, the value 6 was determined to be the weighted average of the coordinates.
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Question 2
What are the rational roots of P(x) = x³ + 2x - 1?
O x = 1, x = -1
O x = 1, x = 0
O x = 1, x = 2
O This polynomial has no rational roots.
The rational roots of the equation is x=0, x=-1.
What is a rational number?
A rational number in mathematics is one that can be stated as the quotient or fraction p/q of two numbers, p and q, with p being the numerator and q being the denominator. For instance, every integer and 3/7 are rational numbers. Boldface Q is typically used to represent the set of all rational numbers, commonly known as "the rationals," the field of rationals, or the field of rational numbers.
The rational roots of the equation is x=0, x=-1.
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math 38 help please
8) I
8.2)
[tex]\begin{gathered} \sqrt[3]{x+4}=5 \\ \left(\sqrt[3]{x+4}\right)^3=5^3 \\ x+4=125 \\ x+4-4=125-4 \\ x=121 \\ Verify: \\ \sqrt[3]{121+4}=5 \\ \sqrt[3]{125}=5 \\ 5=5\:True! \end{gathered}[/tex]hus , the answer is x=121
Find the sum. 2 3/6 + 4 1/6
Answer:
6 4/6
Explanation:
To sum 2 3/6 and 4 1/6, we first need to convert the mixed numbers to fractions as follows
[tex]\begin{gathered} 2\frac{3}{6}=\frac{(2\times6)+3}{6}=\frac{12+3}{6}=\frac{15}{6} \\ 4\frac{1}{6}=\frac{(4\times6)+1}{6}=\frac{24+1}{6}=\frac{25}{6} \end{gathered}[/tex]Now, we can add the numbers as
[tex]\frac{15}{6}+\frac{25}{6}=\frac{15+25}{6}=\frac{40}{6}[/tex]Finally, when we divide 40 by 6, we get 6 as a quotient and 4 as a remainder, so 40/6 is equivalent to
[tex]6\frac{4}{6}[/tex]Therefore, the answer is 6 4/6
a path bounds a circular lawn at a park. if the inner edge of the path is 132 ft. around, approximate the amount of area of the lawn inside a circular path
A path bounds a circular lawn at a park. if the inner edge of the path is 132 ft. around, Approximate the amount of area of the lawn inside a circular path ?
CIRCULAR LAWN
Inner edge Perimeter = 132 feet
2 x pi x r = 132
2 x 22/ 7 x r = 132
r = 132 / ( 2 x 22/ 7 )
r = 132 x 7 / 44
r = 924 / 24
r
Simplify the expression.
(4²)6
6
(4³) 5 = 41
The simplified expression of (4²) x (4³) is 4⁵
What are expressions?Expressions are mathematical statements that are represented by variables, coefficients and operators
How to evaluate the expression?The expression is given as
(4²) x (4³)
The base of the above expression are the same
i.e. Base = 4
This means that we can apply the law of indices
When the law of indices is applied, we have the following equation:
(4²) x (4³) = 4²+³
Evaluate the sum in the above equation
So, we have
(4²) x (4³) = 4⁵
Hence, the simplified expression of the expression given as (4²) x (4³) is 4⁵
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Possible question
Simplify the expression.
(4²) x (4³)
Work out the size of angle A.
A
B
11 cm
38°
9 cm
C
can anyone help me with this its driving me nuts.
Given:
Surfacea area of cylinder is 82π square meter.
The objective is to find the new surfacea area if dimensions are tripled.
Consider the radius of cylinder as r, height of the cylinder as h.
The formula to find the surfacea area is,
[tex]SA=2\pi r(h+r)[/tex]It is given that the dimensions are tripled. Then, the formula will become.
[tex]\begin{gathered} SA=2\pi\cdot3r(3h+3r) \\ =2\pi\cdot3r\cdot3(h+r) \\ =9\lbrack2\pi r(h+r)\rbrack \end{gathered}[/tex]Now, substitute the given value of surface area in the above equation.
[tex]\begin{gathered} SA=9\lbrack82\pi\rbrack \\ =738\pi m^2 \end{gathered}[/tex]Thus, the new surfacea area is 738π square meter.
Hence, option (C) is the correct answer.
in exercises 9-12 assume that 59 births are randomly selected. use subjective judgment to describe the given number of girls as a) significantly low, b) significantly high or c) neither significantly low nor high.
9. 47 girls.
10. 26 girls.
11. 23 girls.
12. 5 girls.
If the pattern below was tripled, what would be the ratio of black squares to gray squares
If the pattern (see attachment) below was tripled, the ratio of black squares to gray squares would be equal to 1:2.
What is a proportion?A proportion can be defined as an equation which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.
Mathematically, a direct proportion can be represented by the following equation:
y = kx
Where:
y and x are the variables.k represents the constant of proportionality.What is a ratio?A ratio can be defined as a mathematical expression that's used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.
For this exercise, the ratio of black square to gray squares is given by:
B:G = 1:2
Tripling the pattern, we would multiply by three (3) as follows:
B:G = [1:2] × 3
B:G = 3:6
Dividing all through by 3, we have:
B:G = [3:6]/3
B:G = 3/3 : 6/3
B:G = 1:2.
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(a) Grogg is ordering pizza from a local pizzeria, which offers ten different toppings: pepperoni, mushrooms, sausage, onion, olives, green peppers, pineapple, spinach, garlic, and hummus (an favorite). For any pizza, any combination of toppings is possible, including no toppings. How many different pizzas can Grogg order, if Grogg must order at least five toppings?
(b) Lizzie hears about Grogg's plans, and is also interested in ordering a pizza. For variety, they agree to order one pizza each so that they have no toppings in common. In how many different ways can Lizzie and Grogg order their pizzas, if each pizza must have at least three toppings?
(c) It turns out Winnie is also interested in ordering a pizza! Lizzie and Grogg still agree that their pizzas can't have any toppings in common, but Winnie will include a topping on her pizza only if it appears on Grogg's pizza or Lizzie's pizza (but she doesn't have to include it). In how many different ways can Grogg, Lizzie, and Winnie order their pizzas, if Lizzie's pizza must have at least four toppings, and Grogg's pizza must have at least one topping?
You may leave your answers in exponential form.
Using the combination formula, the number of ways to order the pizzas in each case is given as follows:
a) 638 ways if Grogg must order at least five toppings.
b) 937,024 ways if each pizza must have at least three toppings.
c) 1024 ways if Lizzie's pizza must have at least four toppings and Grogg's must have at least one topping.
What is the combination formula?[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula, involving factorials.
[tex]C(n,x) = \frac{n!}{x!(n-x)!}[/tex]
For this problem, the order of the toppings is not important, which is why the combination formula is used.
Hence the numbers of pizzas from 0 to 10 toppings are given as follows:
0 toppings: C(10,0) = 1.1 topping: C(10,1) = 10.2 toppings: C(10,2) = 45.3 toppings: C(10,3) = 120.4 toppings: C(10,4) = 210.5 toppings: C(10, 5) = 252.6 toppings: C(10, 6) = 210.7 toppings: C(10, 7) = 120.8 toppings: C(10, 8) = 45.9 toppings: C(10, 9) = 10.10 toppings: C(10,10) = 1.In item a, Greg must order at least five, hence the number of ways is:
252 + 210 + 120 + 45 + 10 + 1 = 638 ways.
In item b, each must have at least three toppings, hence the number of ways for each is:
120 + 210 + 252 + 210 + 120 + 45 + 10 + 1 = 968 ways.
968 ways for each, two people, hence, by the Fundamental Counting Theorem, the number of ways is:
968² = 937,024 ways.
In item c, the number of ways is the sum of all the possible toppings, except zero, from the conditions given, hence:
1 + 10 + 45 + 120 + 210 + 252 + 210 + 120 + 45 + 10 + 1 = 1024 ways.
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Please answer quick and i’ll transfer you money please quick
A bank account gathers compound interest at a
rate of 5% each year.
Another bank account gathers the same amount of
money in interest by the end of each year, but
gathers compound interest each month.
If Cameron puts £4200 into the account which
gathers interest each month, how much money
would be in his account after 2 years and
7 months?
Give your answer in pounds to the nearest 1p.
Based on the compound interest rate on the bank account and the number of months that Cameron invested the amount for, the money in his account will be £4,777.81
What amount will be in the account?The amount that will be in the account after 2 years and 7 months can be found by the formula:
= Amount invested x ( 1 + periodic rate) ^ number of periods
The number of months (periods) is:
= 2 years + 7 months
= 31 months
The periodic rate is:
= 5% / 12 months a year
= 5/12%
The amount that Cameron will have in his bank account after 2 years and 7 months will be:
= 4,200 x (1 + 5/12%)³¹
= £4,777.81
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Olivia has 5 sundaes for her friends. She has 15
5
6
ounces of sprinkles to put equally on the sundaes. How many ounces of sprinkles will be on each sundae?
The sum of three numbers is 65. The first number is 5 more than the second. The third number is 2 times the second. What are the numbers
How do u know somthing is a proportional relationship
Answer: You can tell if a table shows a proportional relationship by calculating the ratio of each pair of values. If those ratios are, all the same, the table shows a proportional relationship.
Find the zeros of each function by using a graph and a table f(x)=x^2+3x-18.
1) Finding the zeros of this function f(x) =x² +3x -18
f(x) = x²+3x-18 Factoring this equation, and rewriting it
Which two numbers whose sum is equal to 3 and their product is equal to 18?
6 -3 = 3 and 6 *-3 = -18
So we can rewrite as (x +6) (x-3)
(x+6)(x-3)=0 Applying the Zero product rule, to find the roots
x+6=0,
x=-6
x-3=0,
x=3
S={3,-6}
2) Setting a table, plugging in the values of x into the factored form: (x-6)(x-3)
x | y |
1 | -14 (1 +6)(1-3) =-14
2 | -8 (2 +6)(2-3) =-8
3 | 0
4 | 10
-5 | -8
-6 | 0
3) Plotting the function:
(a) Give an example of an angle which is coterminal with 260°.
(b) State the reference angle associated with 260°.
(b) Convert 260° to radians. Leave the answer in terms of
π .
a) 620° is an angle coterminal to 360°. The reference angle associated with 260° is 260°.
b) The measure of 260° in radian system equals to 13π / 9 radians.
How to analyze coterminal angles
Two angles are coterminal when they share the same initial and terminal sides. Two consecutive coterminal angles have a difference of 360° (2π radians). Then, we can find any angle of a family of coterminal angles by using this formula:
θ' = θ + i · 360°
Where:
θ - Reference angle, in degrees.i - Angle index.a) If we know that θ = 260° and i = 1, then the measure of an example of coterminal angle is:
θ' = 260° + 1 · 360°
θ' = 620°
620° is an angle coterminal to 360°.
The reference angle is the angle whose measure is equal to or greater than 0° and equal to or less than 360°. Thus, the reference angle associated with 260° is 260°.
b) According to radian system, 2π radians are equal to 360°. Thus, the measure of 260° is found by the following simple rule of three:
x = 260° × 2π / 360°
x = 13π / 9 rad
The measure of 260° in radian system equals to 13π / 9 radians.
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you randomly select an integer from 0 to 9 (inclusively) and then randomly select an integer from 0 to 4 (inclusively). What is the probability of selecting a three both times?
The probability of selecting a three both times is 0.2
Probability:
Probability is a measure of the likelihood of an event to occur.
Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event.
The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favorable outcomes and the total number of outcomes.
Probability of event to happen P(E) = Number of favorable outcomes / Total Number of outcomes
Given,
you randomly select an integer from 0 to 9 (inclusively) and then randomly select an integer from 0 to 4 (inclusively).
Here we need to find the probability of selecting a three both times.
Here we need to find the individual probabilities for both,
So, the probability of getting 3 in 0 - 9 is
=> 1/10
And the probability of getting 3 in 0 -4 is
=> 1/5
So, in both times
=> (1/10)/(1/5)
=> 1/10 x 5
=> 0.2
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Need help with this
Given:
You have $1000 to invest a year and have an account earning 4% compound continuously.
Required:
How much money will you have at the end of the year.
Explanation:
We know the formula for continuously compound interest is
[tex]P(t)=P_0e^{rt}[/tex]Here,
[tex]\begin{gathered} P(t)=\text{ Value at time t} \\ P_0=\text{ Original principal sum} \\ r=\text{ annual interest rate} \\ t=\text{ Length of time the interest is applied } \end{gathered}[/tex]We have initial amount $1000, annual interest rate 4% and length of time 1 year
.
Now,
[tex]\begin{gathered} P(t)=1000\times e^{0.04\times1} \\ P(t)=1040.81 \end{gathered}[/tex]Answer:
So, $1040.81 money will have at the end of the year.
A marksman has a probability of 0.322 for hitting a certain long-range target. What is the probability that it takes 3 shots for the marksman to hit the long-range target? (Round your answer to three decimal places, if necessary.)
The required probability would be 0.146 that it takes 3 shots for the marksman to hit the long-range target.
What is probability?The probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.
A marksman has a probability of 0.322 for hitting a certain long-range target which is given in the question.
It takes the marksman 3 shots to hit the long-range target = P(E)
Required probability = P(E)
Here no long-range hits in the 1st two shots = (E₁)
And a long-range hit on the 3rd shot = (E₂)
P(E) = P( (E₁) and (E₂))
P(E) = (1 - 0.288) (1-0.288)(0.288)
P(E) = 0.146
Therefore, the required probability would be 0.146 that it takes 3 shots for the marksman to hit the long-range target.
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2. Let S = R - {0}, with the wacky definitions of vector addition and scalar multiplication given below.
Verify or disprove that S is a Vector Space.
For x, y in S, the definition:
Vector Addition: x + y = xy
• Scalar Multiplication: c*x = x^C.
(ie. 2+5= 2*5 = 10)
Hint: First identify the additive identity
A vector space, also known as a linear space, is a set whose elements, frequently termed vectors, can be added to and multiplied ("scaled") by figures known as scalars. Real numbers make up scalars most of the time, but they can also be complex numbers or, more broadly, components of any field.
Varied SpacesEvery vector space has a scalar field F at its foundation (to be specified shortly).
Real and complex numbers are two examples of scalar fields.
Real numbers R:
C: Complex numbers.
We only utilize these fields in this context.
Definition : A group of objects in a vector space V have a (vector)
scalar multiplication defined as closed under both addition and multiplication
also satisfying the following axioms:
I For any x V and, F, ( + )x = x + x
(ii) α(βx)=(αβ)x
(iii) For all x, y V, x + y = y + x
(iv) For any x, y, and z > V, x + (y + z)=(x + y) + z.
(v) α(x + y) = αx + αy
(vi) O V z 0 + x = x, where 0 is commonly referred to as the origin
Since V cannot be left using vector addition or scalar multiplication, the "closed" criterion described above states that for any, F and x, y V x + y V. Additionally, the "+" is in the field when we write for, F and x V ( + )x, but it is in the vector space when we write for x + y for x, y V. This symbol has a variety of uses.
Examples.(1) R2 is equal to the two-dimensional space (a1, a2) | a1, a2 R.
(2) In an n-dimensional space, Rn = (a1, a2,..., an) | a1, a2,..., an.
An "n-tuple" is (a1, a2,...,an).
(3) C, the field of complex numbers, to C2 and Cn, respectively, to R2 and Rn.
Pn = l n j = 0 ajxj | a0,
The polynomial space of all polynomials of degree n is denoted as Pn = l n j=0 ajxj | a0, a1,...,an R M. Be aware that this covers polynomials of all degrees, not only those with n degrees exactly.
(5) fp = (ai,...) | ai p, |ai| R. Vectors in the form of infinite-tuples of numbers make up this space. To properly designate the field, we would write fp(R) or fp(C).
Trigonometric polynomials TN = F N n=1 a sin nx | a1,...,an R k are included in the list.
Typical vecs in Rn e1 = (1, 0,... , 0)
e2 = (0, 1, 0,... , 0) (0, 1, 0,... , 0)
e3 = (0, 0, 1, 0,... , 0) (0, 0, 1, 0,... , 0)
.\s.\s.\sen = (0, 0,... , 0, 1) (0, 0,... , 0, 1)
The unit vectors that point in the n orthogonal directions are those.
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Drag numbers to the table so it shows a proportional relationship between x and y.
The numerical values (numbers) which makes the table show a proportional relationship between x and y are as follows:
x y___
2 0.6
5 1.5
8 2.4
What is a proportion?A proportion can be defined as an equation which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.
Mathematically, a direct proportion can be represented by the following equation:
y = kx
Where:
y and x are the variables.k represents the constant of proportionality.Next, we would determine the numerical value of the constant of proportionality (k) as follows:
y = kx
k = y/x
k = 0.6/2
k = 0.3
When y = 1.5, the value of x is given by:
x = y/k
x = 1.5/0.3
x = 5.
When y = 2.4, the value of x is given by:
x = y/k
x = 2.4/0.3
x = 8.
In conclusion, the values of x are 5 and 8 while the value of y is 2.4.
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5x - 9 = -5x - 2
X = ?
[tex]5x + 5x = - 2 + 9 \\ 10x = 7 \\ \frac{10x}{10} = \frac{7}{10} \\ x = \frac{7}{10} [/tex]
ATTACHED IS THE SOLUTION
If (m-1/m) = 3, find the value of m³-1/m³
⇒The trick here is to find the value of m first using the equation given.
[tex]\frac{m-1}{m} =3\\m-1=m(3)\\m-1=3m\\m-3m=1\\-2m=1\\\frac{-2m}{-2}=\frac{1}{-2} \\m=-\frac{1}{2}[/tex]
⇒Note I used cross multiplication to solve for m
Now to find what [tex]\frac{m^{3} -1}{m^{3} }[/tex] substitute the value of m in the expression and simplify.
[tex]=\frac{(-\frac{1}{2}) ^{3} -1}{(-\frac{1}{2} )^{3} } \\\\=\frac{-\frac{1}{8}-1 }{-\frac{1}{8} } \\=\frac{-\frac{9}{8} }{-\frac{1}{8} } \\=9[/tex]
⇒The value is 9
Goodluck!!