A store offers a discount of 10% to customers who spend more than $20.00. If a customer’s bill is $80.00, how much will he actually pay?
Answer:
Step-by-step explanation:
Answer:
$72.00
Step-by-step explanation:
Amount of discounted money
= 10/100 x $80.00
= $8
Amount he will pay
= $80.00 - $8.00
= $72.00
The vertex of this parabola is at (-5, 4). Which of the following could be its
equation?
Answer:
A. y = -(x + 5)^2 + 4
Step-by-step explanation:
After a small online search, I've found that the options are:
A. y = -(x + 5)^2 + 4
B. y = -(x - 5)^2 + 4
C. y = -(x + 5)^2 - 4
D. y = -(x - 5)^2 - 4
For a quadratic equation with a vertex at the point (h, k) is written as:
y = a*(x - h)^2 + k
Where a is the leading coefficient.
So, if here we have the vertex at (-5, 4)
y = a*(x - (-5))^2 + 4
y = a(x + 5)^2 + 4
Then the correct option is the first one, where a = -1, then the correct option is A.
In ΔMNO, m = 41 cm, o = 98 cm and ∠O=22°. Find all possible values of ∠M, to the nearest degree.
Answer:
9°
Step-by-step explanation:
m / sin L M = o / sin L O
41/sin L M = 98/sin 22°
=> sin L M = 41×sin 22°/98
= 41×0,3746 / 98
= 0,1567
so, L M = sin~¹ 0,1567 = 9°
PLZ HELP ASAP FOR AP3X
Answer:
A - y = cos(x-1)
Step-by-step explanation:
This is what it looks like when you graph y = cos(x-1). It matches the graph on your question exactly, this graph is just using trig concepts.
Please give me brainliest if my answer was right. :)
Let n be an odd integer with exactly 11 positive divisors. Find the number of positive divisors of 8n^3
Answer: 124
Step-by-step explanation:
As we know, the total number of positive divisors of n is the product of one more than each exponent in the prime factorization of n.
We know this product is equal to 11.
Since 11 is prime, so there can be only one number in this product, so the prime factorization of n must be [tex]$n=p^{10}$[/tex], where p is a prime number.
We take a cube of the prime factorization of n to give us a prime factorization for [tex]n^3[/tex]
[tex]$$n^{3}=\left(p^{10}\right)^{3}=p^{30} .$$[/tex]
We see that [tex]n^{3}\text{ has }$30+1=31$[/tex] positive divisors.
Now, [tex]8n^3=2^3\times p^{30}[/tex]
Totald divisiors = [tex](3+1)(30+1)=4\times31=124[/tex]
Hence, the number of positive divisors of [tex]8n^3=124[/tex]
what is the correct answer
Answer:
Step-by-step explanation:
B is correct answer
How many solutions are there to the following equation?
2- 5x= 3(2 – 3x)
A. O
B. 1
C. Infinitely many
Jenny rolled a pair of number cubes, each with the numbers 1 through 6.
What is the probability that Jenny rolled two 1s?
A. 1/36
B. 1/18
C. 1/12
D. 1/6
Jenny rolled 1/18
Answer:
D. 1/18
Help geometry ……………..
Answer:
Angle F
Step-by-step explanation:
=====================================================
Explanation:
We see that angle A = angle E as shown by the arc marking. The tickmark says that side AB is the same length as side EF.
In the letter sequences "AB" and "EF", erase the first letters A and E to be left with B and F. This is one way to show how angle B pairs with angle F, and that is enough to show the two angles are congruent.
The scatter plot shows the relationship between tickets sales at a theme park and the number of cloudy days per month for the past year.
Theme Park Ticket Sales
(in thousands)
100
99
98
97
96
95
94
93
92
91
90
87
86
BS
0
9 10 11 12 13 14 15
Number of Cloudy Days per Month
Which statement best describes the relationship shown in the scatter plot?
A Ticket sales are high when there are few cloudy days.
O B. Ticket sales are low when there are many cloudy days.
C. Ticket sales go up if there are more cloudy days per month.
D. Ticket sales go down if there are more cloudy days per month
E Ticket sales are not affected by the number of cloudy days per month.
Answer:
E Ticket sales are not affected by the number of cloudy days per month.
Step-by-step explanation:
From the scatter plot Given, using visual observation, we can infer that the relationship between theme park ticket sales and the number of cloudy sales is randomly scattered with no defined linear pattern. That is, the plot does not ascertain of the number of ticket sales increases with increasing number of cloudy days, or vice versa. Hence, the relationship will best the described as concluding that ticket sales are not affected by the number of cloudy days per month.
Please help I’ll give brainliest
Answer:
23
Step-by-step explanation:
I DID 7*3+2 & GOT 23
What is the volume of the triangular prism?
Answer:
48 in³
Step-by-step explanation:
the volume = ½×3×4 × 8 = 48 in³
(2x – 1) (2x + 1) (4x2 + 1)(16x4 + 1) + 1
Answer:
Escribí esto, así que espero que quede claro.
Step-by-step explanation:
Maybe 256x square 8
31 x 01111111111111111111111111
Answer:
3.444444444444444
Step-by-step explanation:
What is 350-450:90+15x3
Sanjay uses the steps below to solve the equation 4 p + two-fifths (10 + 2 p) = 8. Step 1 Multiply both sides of the equation by Five-halves. 4 p + 10 + 2 p = 20 Step 2 Simplify like terms. 6 p + 10 = 20 Step 3 Subtract 10 on both sides of the equation. 6 p = 10 Step 4 Divide both sides of the equation by 6. p = StartFraction 10 over 6 EndFraction = Five-thirds = 1 and two-thirds Which is the first error that Sanjay made when finding the solution?
Answer:
Step 1 Multiply both sides of the equation by Five-halves
Step-by-step explanation:
First mistake:
Step 1 Multiply both sides of the equation by Five-halves
Correct First step:
Should have subtracted 4p from both sides
Answer:
In step 1, he did not multiply 4p by Five-halves when multiplying both sides by Five-halves.
Step-by-step explanation:
Just got it right on edge!! Hope this helps, have a great day!
Work out the size of angle X
Answer:
x = 105
Step-by-step explanation:
The angles are corresponding angles and corresponding angles are equal if the lines are parallel
x = 105
Answer:
105°
Step-by-step explanation:
The angles are corresponding therefore they are equal
Given F(x) = 2x - 1; G(x) = 3x + 2; and H(x) = x 2, find the function F(x) + G(x) + H(x).
Answer:
if H(x) is x²
Step-by-step explanation:
[tex]3x + 2 + 2x - 1 + {x}^{2} = \\ 3x + 2x = 5x \\ {x}^{2} + 5x - 1[/tex]
im not sure exactly hehe
Tower A and B are 151 m apart.
From the top of tower A at 68 m above ground, the angle of elevation to the top of tower B is 23°.
How tall is tower B to the nearest metre?
Answer:
132m
Step-by-step explanation:
Height of tower B = Height of tower A + difference in height between tower B and A
The difference in height can be determined using tan
tan 23 = opposite / adjacent
tan 23 = opposite / 151
0.4245 x 151 = opposite
opposite = 64m
Height of tower B = 64m + 68m = 132m
The ratio of men to women working for a company is 4 to 7. If there are 165 employees total, how many women work for the company?
Answer: 105
Step-by-step explanation:
Given
The ratio of men to women working for a company is 4:7
There are total of 165 employees
Suppose, there is 4x men and 7x women such that the ratio remains constant
[tex]\therefore 4x+7x=165\\\Rightarrow 11x=165\\\Rightarrow x=15[/tex]
[tex]\text{Men= }4\times 15=60\\\text{Women= }7\times 15=105[/tex]
In a class of students, the following data table summarizes how many students have a cat or dog. What is the probability that a student chosen randomly from the class has a cat?
Answer:
from this we know there is 30 people in the class and 14 of them have a cat so the probability is 14/30
14/30
7/15
7/15 as a percent is 46.6667%
help I will give brainliest if you do everything
Find MN. See image below.
Answer:
Step-by-step explanation:
Tangents from the point outside the circle are equal
NL = JL
NM + ML =JK + KL
2x - 7 + 9 = 8 + 10
2x + 2 = 18 {Subtract 2 from both sides}
2x = 18 - 2
2x = 16 {Divide both sides by 2}
x = 16/2
x = 8
MN = 2*8 - 7 = 16 - 7 = 9
MN = 9
Sabrina is tracking the growth rates of a colony of ants and of a bee hive. From her research, she has developed a function to represent the population growth of each type of insect, where y represents the population and x represents the number of weeks since Sabrina began her research.What is this function written in vertex form?
Answer:
A
Step-by-step explanation:
i think
The function that represent the growth rate of the population where y represents the population and x represents the numbers of weeks since Sabrina began her research is [tex]y=3.8^{x}[/tex] (for ant colony) [tex]y=3.8x[/tex] (for bee hive growth)
What is function?"A function is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable)."
What is research?"Research is creative and systematic work undertaken to increase the stock of knowledge."
What is growth rate?"The growth rate of change of population size, for a given country, territory, or geographic area, during a specified period."
As we know that we have to check the growth of the population. According to the given data, the rate of growth for ant colony is [tex]y=3.8^{x}[/tex] and also the growth rate of bee hive is [tex]y=3.8x[/tex]
Hence, the growth rate of ant colony is [tex]y=3.8^{x}[/tex] and the growth rate of bee hive is [tex]y=3.8x[/tex]
To know more about growth rate of population here
https://brainly.com/question/15133607
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Consider the follow:ing sequence -3; 2; 7; 12. 12.1 Find an expression for the nth term
Answer:
tn=t¹+d(n-1)
Step-by-step explanation:
d=common difference
t¹=1st term
n= the nth term
Answer:
Step-by-step explanation:
Sequence, so easiest way is difference between any 2 consecutive numbers
Neg 3 to 2, difference is 5
2 to 7, difference is 5
7 to 12 , difference is 5
So sequence result for n
= starting point + (n-1)(5)
Eg 2nd, N= 2
Starting point is neg 3
Sequence = -3 + 2-1 (5) = -3 + 5 = 2
9th, n = 9
-3 + 8(5)
-3 + 40
37
Caio comprou uma lembrancinha para todos os seus amigos e gastou R$12,50. Qual fração pode representar esse valor? 125/2 25/5 125/5 25/2
Me ajuda
Answer:
25/2
Step-by-step explanation:
Caio comprou uma lembrança para todos os amigos e gastou R $ 12,50.
Comparando e resolvendo as opções dadas a nós,
a) 125/2 = 62,5
A opção a está errada
b) 25/5 = 5
Opção b está errada
c) 125/5 = 25
A opção c está errada
d) 25/2 = 12,50
A opção d está correta
Portanto, a fração que pode representar este valor é 25/2
What is the measure of the unknown angle?
Solve for x and y in the system of equation
3x²+4y=17
2x²+5y=2
I'll mark brainliest
Answer:
[tex]x=\pm \sqrt{11} \\y=-4.[/tex]
Step-by-step explanation:
[tex]\left \{ {{3x^2+4y=17} \atop {2x^2+5y=2}} \right. \\\\Then\\\\\left \{ {{2 \times (3x^2+4y)=2 \times 17} \atop {3\times(2x^2+5y)=3\times2}} \right. \\\\\left \{ {{6x^2+8y=34 \quad (1)} \atop {6x^2+15y=6\quad (2)}} \right.\\\\(1)-(2) \Rightarrow -7y=28 \Rightarrow y =-4.\\Since \: \: 2x^2+5y=2 \Rightarrow 2x^2=2-5y\\\Rightarrow 2x^2=2+20=22\\\Rightarrow x^2=22:2=11\\\Rightarrow x=\pm \sqrt{11}.[/tex]
Can someone help me please???
Answer:
35,691
Step-by-step explanation:
First step, look at the diagram and you see that you have a sphere and a cone.
The total surface area of a sphere is
[tex]A = 4\pi r^{2} \\A = 4\pi 39^{2} \\A = 19,113[/tex]
Since you only have half of a sphere, the surface area is 9,556.5
The surface area of the cone is
[tex]A = pi r(r+\sqrt{h^{2}+r^{2} }) A = \pi39(39+\sqrt{42^{2} +39^{2} } \\A=11,800[/tex]
You don't need the bottom of the cone however as it is connected to the half sphere.
So substract the area of a circle with a radius of 39 from the product of 19,113 + 11,800
The area of the circle is 4,778
Katrina drinks 0.5 gallons of water per day which expression shows how to find the number of cups of water she drinks in a week there are 16 cups in I
Answer:
56 cups of water
Step-by-step explanation:
Katrina drinks 0.5 gallons of water per day
We have 7 days in a week, hence, the number of gallons of water she drinks per week is calculated as:
1 day = 0.5 gallons
7 days = x
Cross Multiply
1 day × x = 7 days × 0.5 gallons
x = 7 days × 0.5 gallons/1 day
x = 3.5 gallons
Note that 16 cups = 1 gallon
The number of cups of water she drinks per week is
1 gallon = 16 cups
3.5 gallons = x
Cross Multiply
1 gallons × x = 3.5 gallons × 16 cups
x = 3.5 gallons × 16 cups/1 gallons
x = 56 cups
Therefore, Katrina drinks 56 cups of water in a week