Answer:
g= -20,17
Step-by-step explanation:
i used symbolab plus i just worked this in class
tap A fills a tank in 6 hours tap B fills it in 8 hours and tap C empties it in 10 hours. starting with an empty tank and all the three taps are opened find how long it takes to fill the tank?
Answer:
It will take 5 hours and 5 minutes to fill the tank
Step-by-step explanation:
Here, we want to get the time taken to fill the tap
Let us have the rate per hour
A fills in 6 hours; so the fraction filled in an hour is 1/6
B fills in 8 hours, so the fraction filled in an hour is 1/8
C empties in 10 hours, so the fraction removed per hour is 1/10
So factoring the supply and removal, where removal is on a negative basis
we have it that in an hour, the fraction retained is;
1/6 + 1/8 - 1/10
= (20 + 15 - 12)/120
= 23/120
So this is the fraction retained per hour
The number of hours it will take to have a whole is simply the reciprocal of this fraction
That would simply be 120/23 = 5 5/23
5 hours and 5 minutes
what is 3/12 as a precent
Answer: 25%
Step-by-step explanation:
Answer:
25% As a decimal its 0.25
Step-by-step explanation:
Please help! 20/20. Will give brainliest! Spam answers will not be tolerated!
Factor. 4x² + 8x + 4
Answer:
4(x+1)^2
Step-by-step explanation:
i hope this helps :)
[tex]{ \sf{ \underline{ \red{factorise{ \: \: 4 {x}^{2} + 8x + 4}}}}}[/tex]
[tex]{ : { \implies{ \sf{ \green{4 {x}^{2} + (4x + 4x) + 4}}}}} \\ \\ \\ { : { \implies{ \sf{ \green{4 {x}^{2} + 4x + 4x + 4}}}}} \\ \\ \\ { : { \implies{ \sf{ \green{4x(x + 1) + 4(x + 1)}}}}}[/tex]
[tex]{ : { \implies{ \sf{ \green{(4x + 4)(x + 1)}}}}} \\ \\ \\ { :{ \implies{ \sf{ \green{4(x + 1)(x + 1)}}}}}[/tex]
2e+46-536+62b=
e=53
b=4
Answer:
-136
Step-by-step explanation:
The expression mc022-1.jp is equivalent to 3(x)+9. 3(x)+3(9). 3(x) – 9. 3(x) – 3(9).
Answer:
Step-by-step explanation:
its D. 3(x)-3(9)
Answer:
I think its D
Step-by-step explanation:
Srry if this is wrong
Have a nice day!!!!
（*^_^*）
Enter the correct answer in the box.
Use the quadratic formula to solve the equation X(-2x – 11) = -3.
Replace m, n, and p with the correct values.
Answer:
I got it correct and this is the right answer:
The roots of the given quadratic equation are (- 11 ± √145)/4. Therefore, m = - 11, n = 145, and p = 4.
What is a quadratic equation?"A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax² + bx + c = 0, where 'a' and 'b' are the coefficients, 'x' is the variable, and 'c' is the constant term. The first condition for an equation to be a quadratic equation is the coefficient of x² is a non-zero term(a ≠ 0)."
The given quadratic equation is:
x(- 2x - 11) = - 3
⇒ - 2x² - 11x = - 3
⇒ 2x² + 11x = 3
⇒ 2x² + 11x - 3 = 0
⇒ x = [- 11 ± {√(11²) - 4×2×(- 3)}]/(2 × 2)
⇒ x = [- 11 ± {√121 + 24}]/4
⇒ x = (- 11 ± √145)/4
Therefore, for the given quadratic equation, m = - 11, n = 145, and p = 4.
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Help meeeeee i don't know it and i will give brainlest
Answer:
Question 1:
1. 3.14
2. 6.2
Question 2:
1. 20
2. 25
3. 30
4. 35
Answer:
y< 6.28
Step-by-step explanation:
y<157/25 y<6 7/25 , Y={-infinity sign, 6.28
Help I'm not sure if this is the answer?
(This question is about trigonometric ratios)
9514 1404 393
Answer:
(b) 15.32
Step-by-step explanation:
You can use your triangle sense to answer this.
The side x will always be shorter than the hypotenuse, 20. This eliminates the last two choices.
If the angle is 45°, then the sides are equal at about 0.707 times the length of the hypotenuse. That would make them 0.707×20 = 14.14. Since the angle is greater than 45°, the opposite side will be greater than 14.14. Only one answer choice fits between 14 and 20: the second choice -- 15.32.
__
The mnemonic SOH CAH TOA reminds you of the relation ...
Sin = Opposite/Hypotenuse
sin(50°) = x/20
x = 20×sin(50°) . . . . multiply by 20 to find x
x ≈ 15.32 . . . . . . . . . use your calculator to evaluate
__
The attachment is intended to show how the triangle side lengths change with angle.
HELP ME PLZZZZZ GUYS PLZZZZZZZZ
The answer for the following question is Option 1 - 700 + 9 + 0.1 + 0.004
Answer: 700+9+0.1+0.004
Step-by-step explanation:
700+9=709.000
0.1+0.004=0.104
709.000+0.104=709.104
Hope this helps :)
Find the mean absolute deviation for this data set.
2, 3, 1, 5, 4
The mean absolute deviation of the given data set is 1.2.
How to calculate the mean absolute deviation of a data set?Mean absolute deviation (MAD) is a measure of the average absolute distance between each data value and the mean of a data set. The formula for MAD is:
MAD =∑|x-m| / n
∑ is known as Sigma and means to sum up
| | are vertical bars that mean absolute value
x is each value
m is the mean
n is the total number of data points in your data set
Given: 2, 3, 1, 5, 4
n = 5
m = 2 + 3 + 1 + 5 + 4 = 15/5 = 3
∑|x-m| = |2-3| + |3-3| + |1-3| + |5-3| + |4-3| = 6
MAD =∑|x-m|/n = 6/5 = 1.2
Therefore, the mean absolute deviation of the set data is 1.2
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pleaee help due pretty soon
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Straight lines.
Since,
y-y1 = m(x-x1)
hence the option B.) is correct.
====> y-3 = 6 (x+8)
The graph of a cosine function is shown. Which two points on the midline of the function are separated by a distance of one period?
Answer: (pi/8, 1) and (5*pi/8, 1)
Step-by-step explanation:
First, the midline is a horizontal line that cuts the graph in two halves.
In this case, we can see that the maximum of the function is y = 2.5, and the minimum is y = -0.5
The difference is:
Diff = (2.5 - (-0.5)) = 3
If we subtract half of the difference (3/2 = 1.5) to the maximum, we get the midline.
Then:
midline: y = 2.5 - (3/2) = 1
the midline is the line y = 1
Now, a period T is such that:
Sin(x) = Sin(x + T)
Two points that are in the midline and that are separated by a period will be two points on the line y = 1, and that are in corresponding parts of the graph.
Here the two points are, counting from left to right, the third and the 11th.
(both of them are in the line y = -1 and in the negative slope part).
The points are:
(pi/8, 1) and (5*pi/8, 1)
Answer:
Here is the correct answer from the other Brainly Answer if you don't know what points you have to mark :) - Edmentum/Plato btwPlease help me!
----------------------------
Answer:
It should be D because you start off with the X coordinate then y
Can anyone help me with this question please ?
I’ll mark you as a brainliest
A politician claims that a proposal for a new traffic law is broadly supported by both political parties and that a person from either political party is equally likely to support the proposed legislation. He cites two recent polls that said 70% of a random sample of 550 people from his political party supports the law, and 65% of a random sample of 420 people from the other political party supports the law. The 95 percent confidence interval for the difference in population proportions is (–0.010, 0.110). Based on the interval, is the politician’s claim justified?
Answer:
Based on the 95% confidence interval for the difference in population proportion, there is convincing statistical evidence that he is correct
Step-by-step explanation:
The proportion from the sample of people from his party that support the law = 70%
The number the members of the politicians political party that support the law = 550 people
The proportion from the sample of people from the other party that support the law = 65%
The number the members of the politicians political party that support the law = 420 people
The confidence level of the test = 95%
The given confidence interval for the difference in proportion, C.I. = (-0.010, 0.110)
Given that the 95% confidence interval for the difference in population proportion ranges from -0.010, to 0.110, it is 95% certain that 0 is among the likely difference in proportion between the two populations and therefore, there is sufficient statistical evidence to suggest that there is no difference in the proportion of the members of either political that support the proposed new traffic law.
f(x) = 4(2)^-x − 3
pls help
Answer:
− 2
Step-by-step explanation:
4 x 2 ^−2 -3 =-2
Which choice is equivalent????
Answer:
B) [tex]2\sqrt{21}[/tex]
Step-by-step explanation:
[tex]\sqrt{14} *\sqrt{6} =\\\sqrt{84} \\2\sqrt{21}[/tex]
Write an equation that describes the function.
Answer:
y = xplus1 sorry, new keyboard and it doesn't have a plus sign
Someone please help I really appreciate it
Answer:
The 12 represents the length by width (the 4 by 3).
The 5 represents the height of the figure.
We would use 12 x 5 if we wanted to find the volume. (W x L x H)
PLEASE HELP ill give BRAINLIST
Answer:
0.02562 poti sami dai coroana pls
Step-by-step explanation:
Diagonals AC and BD form right angles at point M in parallelogram ABCD. Prove ABCD is a rhombus.
Parallelogram A B C D is shown. Diagonals are drawn from point A to point C and from point B to point D and intersect at point M. Sides A B and D C are parallel and sides B C and A D are parallel. A square is drawn around point M.
Statements
Reasons
1. ABCD is a parallelogram 1. given
2. ∠AMB, ∠BMC, ∠CMD, and ∠DMA are right angles 2. given
3. ∠AMB ≅ ∠BMC ≅ ∠CMD ≅ ∠DMA 3. right angles are congruent
4. AC bisects BD;
BD bisects AC; 4. diagonals of a parallelogram bisect each other
5. AM ≅ MC, MB ≅ MD 5. definition of a bisector
6. ? 6. SAS congruency theorem
7. AB ≅ BC ≅ CD ≅ DA 7. CPCTC
8. figure ABCD is a rhombus 8. definition of a rhombus
△ABC ≅ △ADC ≅ △BAD ≅ △BCD
△AMB ≅ △CMB ≅ △CMD ≅ △AMD
△ABC ≅ △ADC ≅ △AMD ≅ △BMC
△AMB ≅ △CMD ≅ △BAD ≅ △BCD
The missing statement which is statement 6 is; △AMB ≅ △CMB and ≅ △CMD ≅ △AMD
How to carry out a two column proof?We have been given several statements and reasons in the given two column proof to prove that ABCD is a rhombus.
Now, the only missing parameter is statement 6 which has its' reason as SAS congruency theorem.
From all the reasons and statements given before statement 6, we can arrive at the conclusion that;△AMB ≅ △CMB and ≅ △CMD ≅ △AMD
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Answer:
B: △AMB ≅ △CMB ≅ △CMD ≅ △AMD
Step-by-step explanation:
edg
A tree grows three-fourth feet per year. How long will it take the tree to grow from
a height of 17 3/4 feet to a height of 25 1/2 feet?
Answer:
9 years
Step-by-step explanation:
37-21.25 =15.75ft
1.75ft per year
15.75 / 1.75 = 9 years
THIS IS DUE IS 16 MINUTES SOMEONE HELP PLZ
Answer: The answer is A
Step-by-step explanation:
Answer:
The answer is 34.6, or A.
Step-by-step explanation:
The formula for area is pi*r*r. This means that you will have to take the area, or A, and do this: [tex]\sqrt{\frac{a}{pi} }[/tex]. That would be that radius, so then multiply that by 2*pi, and that would give an answer of approximately 34.6.
Need help with this his one!
Answer:
a) 6(6x-5)
=(6×6x) - (6×5)
=36x-30
b)11y+4y+10y
=y(11+4+10)
=y(25)
=25y
Haley and her family went on a vacation. To get to the beach, they drove for 3 hours
and 25 minutes. When they headed back home, it took them 230 minutes to get home.
Did it take longer to get to the beach or to get home from the beach?
Answer:
it took longer to get to the beach
Step-by-step explanation:
they drove to the beach for 3 hours and 25 minutes and it took 55 minutes less to get home
Answer:
it took longer to get back home
Step-by-step explanation:
Find an expression which represents the difference when (10x−8y) is subtracted from (-4x-9y) in simplest terms.
Answer:
-14x - y
Step-by-step explanation:
-4x - 9y - (10x - 8y)
-4x - 9y - 10x + 8y
-14x - y
Out of a total of 125 students surveyed, 48 said they did not like ice cream. Out of the total number of students surveyed, what percent said they did like ice cream?
Answer:
62% said they like ice cream
The percentage of students who liked the ice cream is given by the equation A = 61.6 %
What is Percentage?A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %
Given data ,
Let the percentage of students who liked ice cream be A
Now , the equation will be
The total number of students = 125 students
The number of students who didn't like ice cream = 48 students
The number of students who liked ice cream = 125 - 48
The number of students who liked ice cream = 77 students
So ,
The percentage of students who liked ice cream A = ( number of students who liked ice cream / total number of students ) x 100
Substituting the values in the equation , we get
The percentage of students who liked ice cream A = ( 77/125 ) x 100
On simplifying the equation , we get
The percentage of students who liked ice cream A = 0.616 x 100
The percentage of students who liked ice cream A = 61.6 %
Therefore , the value of A is 61.6 %
Hence , the percentage is A = 61.6 %
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Miranda conducted a survey on how many hours per day students spend surfing the internet versus how many pets they have
She surveyed ten of her classmates and recorded the data in the scatter plot below.
which equation
y=-6.3x+0.4
y= -7.4x+ 0.7
y= 0.7x + 7.4
y= 0.4x + 6.3
answer
y=-7.4x+0.7
Step-by-step explanation:
If y=2x and 3x – 3y = 2, then x
Answer:
x = - 2/3
Step-by-step explanation:
2x = y
3x - 6x = 2
- 3x = 2
- 3x ÷ - 3 = 2 ÷ - 3
x = 2 ÷ - 3
x = - 2/3
what number is 35% of 56
show work
Answer:
35% = 0.35
56 times 0.35 = 19.6
Answer is 19.6
Step-by-step explanation:
Answer:
19.6
Step-by-step explanation:
35% = 0.35
56 times 0.35 = 19.6
Answer is 19.6