Y is directly proportional to x² and y = 50 when x =5, Find
i) Equation connecting x and y
ii) The value of y when x= 4
iii) The value of x when y= 200 ​

Answers

Answer 1

Answer:

Equation: y = 2(x^2)

Y-value = 32

X-value = 10

Step-by-step explanation:

y = k(x^2)

k symbolises proportionality.

solve for k:

50 = k(5^2)

50 = 25k

k =2

So...

equation is y = 2(x^2)

Value of y when x = 4,

y = 2 x 4^2

y = 2 x16

y = 32

Value of x when y = 200,

200 = 2(x^2)

100 = x^2

x = 10


Related Questions

Plz help me well mark brainliest if correct!...

Answers

Answer

D

Explanation

Too much population can be bad

Find the measure of the exterior <1.

Answers

Answer:

1= 145°

Step-by-step explanation:

80° + 65°= 145

180 - 145 = 35

180- 35 = 145

Answer:

The answer is 145°

8th term of the sequence:
-5, -11, -17, -23…
with step by step explanation.

Answers

-5 to -11 = 6
The 8th term is -46

10 poir 2. Describe the cross section that will result if the pyramid is sliced vertically through the top vertex (perpendicular to the base). ​

Answers

Answer:

5

Step-by-step explanation:

it just is

suppose the probability of someone having a reaction to a medication is 0.025 what is the probability of two out of tree people having a reaction?

Answers

Given :

The probability of someone having a reaction to a medication is 0.025 .

To Find :

The probability of two out of tree people having a reaction.

Solution :

Let, P is the probability of two out of tree people having a reaction.

So, P = ( first had reaction ) × ( second had reaction ) × ( third do not had reaction )

P = 0.025 × 0.025 × ( 1 - 0.025 )

P = 0.00061

Hence, this is the required solution.

-5 3/4 - 3 1/2 =?

A)2 1/4
B)-9 1/4
C)-2 1/4
D)-8 2/3

Answers

Answer:

-9 1/4

Step-by-step explanation:

-5 3/4 - 3 1/2

Get a common denominator

-5 3/4  - 3 1/2 *2/2

-5 3/4  - 3 2/4

-8  5/4

Rewritng

-8 4/4 - 1/4

-9 1/4

Tom works at a movie theater earning $8 an hour for 40 hours each week

Answers

What are you asking?
If you are asking for how much money does Tom make in 40 hours a week?
Answer: $320 per week

Hope it did help!!!

Answer:

320

Step-by-step explanation:

first divide

then subtract

then multiply

then you got your answer

find 5-(-7)=5+7 simplify

Answers

Answer:

You already did the question.

Step-by-step explanation:

What's there to simplify?

5+7 = 5+7

It's just recursive.

Answer:

12 = 12

Step-by-step explanation:

5 - (-7) = 5 + 7

5 + 7 = 5 + 7

12 = 12

-8x8x8x8 as a power?​

Answers

Answer:

(-8)⁴

Hope this helps!

Jenny wants to purchase a shirt that normally sells for $25. If Jenny has a coupon for 20% off her purchase, what price

will Jenny have to pay for the shirt?
Jenny will have to pay $
for the shirt.
Help me

Answers

Answer: 5

Step-by-step explanation:

To find 20% of something, we can just multiply it by 0.2

25 × 0.2 = 5

Have a good day :)

HELP ME PLEASEEEEEEEEEE

Answers

Answer:

The coordinates of point P is (5,11)

Answer:

The coordinates of point P is (5,11)

Step-by-step explanation:

Two of the statements are true; one is a lie.

Select the one that is a lie.
Then explain your reasoning.

∠GAF ≌ ∠TAE.
∠TAE and ∠FAH are complementary.
∠TAF is obtuse.

Answers

Answer:

∠GAF ≌ ∠TAE is lie

Step-by-step explanation:

∠GAF ≌ ∠TAE is lie

both are not push back angles.

A copy machine makes 84 copies in 3 minutes and 30 seconds, how many copies does it make per minute.

Answers

Answer:

24

Step-by-step explanation:

3 minutes and 30 seconds = 3.5 minutes

84/3.5 = 24copies/minute

24 copies per minute

If tan theta = 7/2 and 0

Answers

Answer:

[tex]\theta= 74.05^{o} (2dp),\\\theta= 0^{o}.\\[/tex]

Step-by-step explanation:

[tex]tan \theta=\frac{7}{2}, \\\theta= tan^{-1}(\frac{7}{2}) = 74.05^{o} (2dp),\\\theta= tan^{-1}(0) = 0^{o},\\[/tex]

A shirt costs $98.
It is 20% off
What is the amount
I will save ?

Answers

Answer:

$19.60 would be saved (off full price)

Step-by-step explanation:

The discount (savings) would be 0.20($98), or $19.60.

Carla used 6 1/2 cups of sugar to make five pies. How many cups of sugar will she need to make 2 pies?​

Answers

Answer:

Number of Sugar cups needs for 2 pies = 20/13 cups

Step-by-step explanation:

Given:

Number of Sugar cups used for 5 pies = [tex]6\frac{1}{2}[/tex] cups = 13/2 cups

Find:

Number of Sugar cups needs for 2 pies

Computation:

Number of Sugar cups needs for 1 pie =  5 / (13/2)

Number of Sugar cups needs for 1 pie = 10 / 13 cups

Number of Sugar cups needs for 2 pies = 2[Number of Sugar cups needs for 1 pie]

Number of Sugar cups needs for 2 pies = 2[10/13]

Number of Sugar cups needs for 2 pies = 20/13 cups

Find the value of the expression.

[(3/5)0]-2

the value is [___]​

Answers

Answer:

1

Step-by-step explanation:

Any number to the power of zero is 1You can flip[tex] {1}^{ - 2} [/tex]to [tex] \frac{1}{ {1}^{2} } [/tex] which is 1

Beth has a box containing music CDs. Each CD contains songs from only one of these three genres: pop (P), hip-hop (H), and rock (R). She picks one CD from the box, replaces it, and then picks another CD. The sample space for this event is listed.

P-P H-P R-P
P-H H-H R-H
P-R R-R


What is the missing term for this compound event? What is the sample size?

A.
The missing term is H-P, and the sample size is 9.
B.
The missing term is H-R, and the sample size is 9.
C.
The missing term is H-P, and the sample size is 3.
D.
The missing term is H-R, and the sample size is 3.

Answers

Answer:

B). The missing term is H-R, and the sample size is 9.

Step-by-step explanation:

Compound event is characterized as the likelihood of occurring two autonomous events at least one or more than one probable outcome.

As per the details provided, 'the term that is omitted in the given event of the compound would be (H-R) and the size of the sample would be 9(' including this missing one. The eight combination possibilities of the CDs have already been provided and thus, the last one would be 'H-R'(hip-hop and rock music CDs). This is why the total number of possibilities turns 9. Thus, option B is the correct answer.

Answer:  the answer is B :)

Step-by-step explanation:

What is
6+√36
pleaseeeee

Answers

Answer:

The answer is 12

Step-by-step explanation:

6+the root of 36 =12

392 x 22 but in a reciprocal answer I only have 10 minutes!!

Answers

your answer is 0.00011596

Mr. Matthews gives each of his 32 students 15 minutes to
present a book report to the class. How many minutes
will it take for all of his students to present their reports?

Answers

Answer:

480 minutes or 8 hours

Step-by-step explanation:

1 student = 15 minutes

32 students = x

x= 32 students *15 minutes

x=  480 minutes

480 minutes it takes for all of his students to present their reports.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Total Students= 32

Each student can take = 15 minutes.

So, time taken by 32 students

= 32 x 15

= 480 minutes.

Hence, students take 480 minutes to complete the report.

Learn more about Unitary Method here:

https://brainly.com/question/22056199

#SPJ2

A rectangular prism with a length of 5 centimeters, width of 4 centimeters, and height of 3 centimeters.
What is the volume of the prism?
20 cm3
36 cm3
47 cm3
60 cm3

Answers

Answer:

60 cm3 is the volume of the prism

Step-by-step explanation:

Because the formula for volume is length * width * height!

please mark the brainliest!

Answer:

60

Step-by-step explanation:

100 pts

Read the following email:


Dear Dr. Jones,
Our pharmaceutical company now received 47 complaints about the new pain reliever NoPain, created in your lab. Of the 47 complaints, 24 said their headache got worse, 15 said they had severe cramping after taking the medication, and 8 said they had both problems. We have only been distributing this pain reliever for about 30 days and we are very
concerned. It has cost our company roughly 1.2 million dollars to create the drug and we have recorded sales of $98,600 in the past month at $10 a bottle, so that is 9,860 bottles. Should we be concerned? Do you think we should pull the product and conduct more
research? We may end up losing money on this if we pursue this course of action. Should we keep the product on the shelves and secretly do more research? Or should we just do nothing for the time being, wait it out, and see what happens? Please get back to us as soon as possible with your recommendation.


Thank you,
Jane Smith
Head of Customer Relations



Using your basic mathematical skills, calculate how long it will take the pharmaceutical
company to earn back the amount that it had invested, if it continues to sell the product at the
current selling rate.

Answers

It will be way more than $98,600 because if it’s harmful to people, people will want their money back and if the people know that the company is selling these prescription pills knowing the side effects but not telling anyone, they will get sued as well. Probably we’re talking in the millions they will lose.

y = (x) = (1/9)^x
Find f(x) when x = (1/2)
Round your answer to the nearest thousandth.

Answers

Answer:

0.333

Step-by-step explanation:

H
45
G
8
F
3
Ε
Find
cos FHE.

Answers

Answer:

no sé pero lo nesesito porfavor

Answer:

Its B. 4/5

Step-by-step explanation:

on edge 2020 :)

The identity (x2 + y2) = (x2 - y2) + (2xy)? can be used to generate Pythagorean triples. What
Pythagorean triple could be generated using x=8 and y=3

Answers

Answer: 5329, 3025, 2304

Step-by-step explanation:

I just did the test

Pythagorean triple generated is 5329

What is Pythagorean triple?

A Pythagorean triple consists of three positive integers a, b, and c, such that a² + b² = c². Such a triple is commonly written, and a well-known example is. If is a Pythagorean triple, then so is for any positive integer k. A primitive Pythagorean triple is one in which a, b and c are coprime

We have,

([tex]x^{2}[/tex]+[tex]y^{2}[/tex] )=( [tex]x^{2}[/tex]-[tex]y^{2}[/tex]) + [tex]2xy[/tex]

Using Points,

x =8, y=3

According to the questions

Taking square in both sides

[tex](x^{2} + y^{2}) ^{2}[/tex] = [tex](x^{2} - y^{2} ) ^{2}[/tex] + [tex](2xy)^{2}[/tex]

when, x = 8, and  y = 3

[tex](8^{2} + 3^{2} )^{2}[/tex] = [tex](8^{2} - 3^{2}) ^{2}[/tex]  + [tex](2.8.3)^{2}[/tex]

               = 3025 + 2304

               = 5329

Hence ,Pythagorean triple is 5329

To learn more about Pythagorean triple from here

https://brainly.in/question/21789673

#SPJ2

Which of the following is a geometric sequence? *
O -1, -3,9,27,...
0 -1,2 -4,8....
O 1,4,9,16,...
O 1,3,5,7,...

Answers

I think the answer is D

PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE U BRAIN THING IF ITS CORRECT NO LINKS. PLEASE

Answers

Answer:

1. 21 +35

2.5

Step-by-step explanation:

Answer:

1.) 21 + 35

2.) 5

Step by step explanation:

Which graph represents the solution?​

Answers

Answer:

A

Step-by-step explanation:

Given the inequality :

v + 4 > 2 and 8v - 20 < 36

v + 4 > 2

v > 2 - 4

V > - 2

8v - 20 < 36

8v < 36 + 20

8v < 56

v < 56/8

v < 7

Hence,

v > - 2 and v < 7

-2 < v < 7

Convert radians to degrees.
-i !!!

Answers

Answer:

1 radian = 57.2958 degrees i dont know if thats

what you wanted to know?

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