Assume that y varies inversely with x. If y = 7 when x = -2, find у when x = 7. y = ??​

Answers

Answer 1

Answer:

-2

Step-by-step explanation:

y=k/x

Replace y with 7 and x with -2

7=k/-2 gives you -14

Then you can replace k with -14 and x with 7

y=-14/7 gives you -2


Related Questions

4 ^-3 rewrite without an exponent

Answers

Answer:

(1/4)³

Step-by-step explanation:

Hope it helps you

Answer:

[tex]\frac{1}{64}[/tex]

Step-by-step explanation:

Negative exponents means you bring the base to the denominator, which becomes a fraction.

[tex]4^{-3} \\=\frac{1}{4^{3}}[/tex]

The question wants us to write without an exponent.

The [tex]4^{3} = 4 * 4* 4=64[/tex]

So, it becomes:

[tex]\frac{1}{64}[/tex]

Need the answer been stuck on this

Answers

Answer:

19 cm³

Step-by-step explanation:

The figure cam be decomposed into two cuboid.

✔️Dimension of cuboid 1:

L = 2 cm

W = 1 cm

H = 8 - 3 = 5 cm

Volume = L * W * H

Volume = 2*1*5 = 10 cm³

✔️Dimension of cuboid 2:

L = 3 cm

W = 1 cm

H = 3 cm

Volume = L*W*H = 3*1*3

Volume = 9 cm³

✅Volume of the irregular figure = 10 + 9 = 19 cm³

4. Find the following function values.


(3)/ (3)

( (2))

f(f'(-4))

g(x+2)​

Answers

Answer:

1. 9

2.2

3.0

4.gx +2g

Step-by-step explanation:

City A and B 2,000 miles Coty C and D 4100 miles how many inches are they​

Answers

Answer:

city a and b 1.2672e+8

city c and d 2.5978e+8

Step-by-step explanation

what they said hope that u get it right

Evaluate the expression: 8 ⋅ (1/2)^2

Answers

Answer:

2

Step-by-step explanation:

8 ⋅ (1/2)^2 = 8 * (1/2) * (1/2)

=4/2

=2

The population of a city has been increasing by 2% annually. In 2000, the population was 315,000. Predict the population of the city in 2020. Round your answer to the nearest thousand.​

Answers

Answer:

In 2020 there will be 468,073 people.

Step-by-step explanation:

Giving the following information:

Growth rate (g)= 2% = 0.02

Population 2,000= 315,000

Number of periods (n)= 20 years

To calculate the population in 2020, we need to use the following formula:

FV= PV*(1+g)^n

FV= 315,000*(1.02^20)

FV= 468,073

In 2020 there will be 468,073 people.

Ellie shares 24 cupcakes with x friends, how many cupcakes does each friend get?

Answers

Answer:

24/ 1 + x

you would have to divide the cupcakes upon the friends.

please could i have help with this i get 336m and its not one of the choices

Answers

It’s 30m,
18msq/m + 4m x 3
= 18 m + 12m
= 30 m

please help i put pic of question

Answers

Answer: [ -8, -5] or [1, 4]

Step-by-step explanation:

Thats what I got I'm in 7th and I havent learned this yet but hope I helped <3!!!

GIVING BRAINLIST. 6 dimes if what percent of a dollar

Answers

Answer:

60%

Step-by-step explanation:

6 dimes is 10x6 and a dollar would have 10 dimes so 60%



2(4y) + 4(3r) answer

Answers

Answer: 8y+12r

Step-by-step explanation:

Take the equation

2(4y)+4(3r)

Distribute the 2 and 4 into the parenthesis'

8y+12r

Let's simply:
___________
2(4y) + 4(3r)
= 8y + 12r

the answer to your question is 12r + 8y

American League baseball teams play their games with the designated hitter rule, meaning that pitchers do not bat. The league believes that replacing the pitcher, traditionally a weak hitter, with another player in the batting order produces more runs and generates more interest among fans. Below are the average numbers of runs score in American League and National League stadiums for the first half of the 2001 season. **American:** 11.1, 10.8, 10.8, 10.3, 10.3, 10.1,10.0, 9.5, 9.4, 9.3, 9.2, 9.2, 9.0, 8.3 **National:** 14.0, 11.6, 10.4, 10.3, 10.2, 9.5, 9.5, 9.5, 9.5, 9.1, 8.8, 8.4, 8.3, 8.2, 8.1, 7.9 (a) Create two box plots to display this data and comment on what you see. (b) Estimate the mean number of runs scored in American League games with a 95% CI. What concerns do you have about making a similar CI for National League games

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

**American:**

11.1, 10.8, 10.8, 10.3, 10.3, 10.1,10.0, 9.5, 9.4, 9.3, 9.2, 9.2, 9.0, 8.3

**National:**

14.0, 11.6, 10.4, 10.3, 10.2, 9.5, 9.5, 9.5, 9.5, 9.1, 8.8, 8.4, 8.3, 8.2, 8.1, 7.9

Kindly view attached picture for boxplot :

Using the relation :

Mean ± Zcritical * s/sqrt(n)

Zcritical at 95% = 1.96

National league :

Mean = 9.58125

Standard deviation = 1.5

9.58125 - 1.96 * 1.5/4 = 8.84625

9.58125 + 1.96 * 1.5/4 = 10.31625

(8.84625 ; 10.31625)

American League :

Mean = 9.807

Standard deviation = 0.805

9.807 - 1.96 * 0.805/sqrt(14)= 9.3853152

9.807 + 1.96 * 0.805/sqrt(14) = 10.228684

(8.84625 ; 10.31625)

Jose purchased 105 slices of pizza to sell at his school's fundraiser, yet at the end of the day, he had only sold 58. What is his percent of error? PLS HELP

Answers

Answer:

awww well look at that my best friend is on brainly, i need help too <3

Step-by-step explanation:

ALGEBRAIC EXPRESSION:
1.Subtract q from p
2.Multiply p by q
3.Divide 20 by p
4.8 times p
5.The sum of p and q
6.Add 15 to p
7.Subtract 25 from q
(pls help me am just new to this lesson)

Answers

Step-by-step explanation:

1. p-q

2. q×p

3.p÷20

4.8*p (8p)

5.p+q

6.p+15

7.q-25

Solve using the quadratic formula.
q2 + 69 + 9 = 0

Answers

Answer:

the value of q = -3

Step-by-step explanation:

The computation of the equation is shown below:

Given that

q^2 + 6q + 9 = 0

q^2 + 3q+ 3q + 9

q(q + 3) + 3(q + 3)

(q+3) (q+3)

q = -3

Hence, after solving it the value of q = -3

please help asap !!!!!! Which equation has one solution for x?

Answers

Question number b is the correct one

Answer:

I think C

Step-by-step explanation:

A has no solution

B has no X

D has infinite solutions

A right rectangular prism has a length of 8 centimeters, a width of 3 centimeters, and a height of 4 centimeters.

What is the surface area of the prism?

____cm2

a) 96

b) 104

c) 136​

Answers

Answer:

I believe the answer is C. 136 cm2

I think the answer is . C. 136 cm

The giraffes roam 612 acres of grasslands and the tigers roam 346 few acres. How many acres do they roam combined?

Answers

Answer:

They roam 958 acres combined.

Step-by-step explanation:

612 + 346

= 958

Is 9 a solution of the equation 9x+8=7x?

Answers

Answer:

Download ka po ng PHOTO MATH app . with solution na yan:) lahat ng problema mo sa solving sagot agad

Find the area of this figure around your answer to the nearest 100. use 3.14 to approximate 3.14 as pi

Answers

Answer:

Area = 49.12 ft²

Step-by-step explanation:

The area of the figure = area of triangle + area of half of a circle

= ½*bh + ½(πr²)

b = 6 ft

h = 8 ft

r = ½ of 8 ft = 4 ft

π = 3.14

Plug in the values

Area of the figure = ½*6*8 + ½(3.14*4²)

Area = 24 + 25.12

Area = 49.12 ft²

Answer:

49.12

Step-by-step explanation:

plz plz plz, HELP!!!! I will give u brainlylist

Answers

Answer:

69

Step-by-step explanation:

thats the answer now give me brainliest NOW:)

A circle that has a center at the origin and a diameter of 12

Answers

Answer:

A≈113.1

Step-by-step explanation:

A=πr2

A=π·62

A≈113.09734

A=113.1 is your answer have a great rest of your day :)

What is the period of 1-sin 2πx/3? Please explain.

Answers

Answer:

Notice, period of function sin(kx) is 2π/k where k is constant (coefficient of x ) since coefficient of x in sin(2πx/3) is k=2π/3  hence the period of sin(2πx/3) is 2π/(2π/3)=3

Step-by-step explanation:


There are 8 red, 5 blue, and 2 green marbles in a hat. Without looking, you picked a blue marble. Without putting the blue
marble back, what is the probability of picking a green marble?

Answers

The answer of picking a green marble is 2/14 which is 1/7.

Answer:

1/3

Step-by-step explanation:

Find the slope of BG, and HL using the coordinates; B(-4, 3), G(-2, 4), H(1, -2), L(-1, -3). then determine if the lines are parallel.​

Answers

Answer:

0.5 or [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

BG = [tex]\frac{4-3}{-2--4}[/tex] = 0.5

HL = [tex]\frac{-3--2}{-1-1}[/tex] = 0.5

This mean that the lines are parallel ..

WILL MARK BRAINLYIST

Answers

Answer:

12

Step-by-step explanation:

You solve for x in 2 methods 7x+10=94 Or 4x-6=42

7x=84

x=12

Solve the inequality

Answers

the answer would be

-3 ≤ x ≤ 5

A bag of sugar contains 420g. A
special offer packet contains an extra
15%. Work out how much extra sugar
is in the special offer packet.

Answers

Answer:

63g extra

Step-by-step explanation:

420 x 0.15 =63 g

finds the value of x and Y.
2x+3y=5
X-2y=-1​

Answers

Answer:

x=1

y=1

Step-by-step explanation:

2x+3y=5.........eq1

x-2y=-1........eq2

therefore: x=-1+2y

Subt. eq 3 into eq2

2x+3y=5

2(-1+2y) +3y=5

-2+4y+3y=5

7y=5+2

7y/7=7/7

y=1

therefore: Subt. y=1 into eq2

x-2y=-1

x-2(1)=-1

x-2=-1

x=-1+2

x=1

Help with Trig and special right triangles (PIC INCLUDED)

Answers

Answer:

sin a = cos C

sin C = AB/AC

tan a = BC/AB

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