Find the value of y when x= 7.
y=-4x

Answers

Answer 1

Answer:

y = -28

Step-by-step explanation:

y=-4x

Let x=7

y = -4*7

y = -28

Answer 2
Y= -4x
First enter in the 7 as X
Y = -4 (7)
You will then multiply -4 • 7 [the “•” is another way or saying multiply just use it so you won’t get the symbol and X confused]

Once you have multiples the answer will be

Y = -28

Related Questions

Find the product. 1.5m6(-2m2)4

Answers

9514 1404 393

Answer:

  24m^14

Step-by-step explanation:

It looks like you want to simplify ...

  [tex]1.5m^6(-2m^2)^4=(1.5)(-2)^4(m^6)(m^{2\cdot4})\\\\=(1.5)(16)m^{6+8}=\boxed{24m^{14}}[/tex]

__

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)^c = a^(bc)

  (ab)^c = (a^c)(b^c)

Sophie surveyed 30 random students in her school and 18 said they enjoy watching baseball. A total of 1,050 students are in the school. How many of these are EXPECTED to enjoy watching baseball? *

Answers

Answer:

630 people

Step-by-step explanation:

Ratios:

[tex]\frac{18}{30} =\frac{x}{1050} \\\\30x=18900\\x=630[/tex]

how many units of meters make a kilometer?

Answers

ANSWER: 1000m


EXPLANATION: 1 km = 1000

In OPQ, O = 10 cm, p=67 cm and angle Q=24^ . Find angle P , to the nearest degree.

Answers

152Answer:

Step-by-step explanation:

If the width of a pool is 60 feet and the perimeter is 200 feet, how long is the pool?
A. 140 feet
B. 120 feet
C. 40 feet
D. 50 feet

Answers

Answer:

140

Step-by-step explanation:

200-60 = 140

Answer:

c

Step-by-step explanation:

Substitute the values in the problem to get, (200) = 2(60) + 2W. Solve for W to get 200 = 120 + 2W. Subtract 120 on both sides to get 80 = 2W. Divide by 2 on both sides to get 40 = W or a width of 40 feet.

hope that helped you.

Un móvil sale con una rapidez de 5m/s y alcanza una rapidez de 40m/s en 10s. Determine la distancia recorrida.

Answers

Answer:

d = 225 m

Step-by-step explanation:

Initial speed, u = 5 m/s

Final speed, v = 40 m/s

Time, t = 10 s

Acceleration,

[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{40-5}{10}\\\\a=3.5\ m/s^2[/tex]

Let d is the distance covered. Using second equation of motion to find it i.e.

[tex]d=ut+\dfrac{1}{2}at^2\\\\d=5\times 10+\dfrac{1}{2}\times 3.5\times 10^2\\\\d=225\ m[/tex]

So, it will cover 225 m.

De un depósito se gasta primero la mitad del agua, y luego la cuarta parte de lo que quedaba. Al final,
quedan 12 litros. Hallar la capacidad del depósito.

Answers

Answer:5/8 fraction of the deposit has been spent, which is 20 liters

Let "a" be the initial amount of water, then first half the water is used: then a / 2 of water is used and the other half is left at / 2 * (1/4), then the fourth part is used: then 1/8 * a is used, so now it remains: a / 2 - a / 8 = 3/8 * a, so 5/8 * a has been used, then what remains are 12 liters:

3/8 * a = 12 L

a = 12 L * 8/3 = 32 L

Wasted: 32 L - 12 L = 20 L

You can visit: brainly.lat/tarea/13597443

please help! question is in the pic

Answers

Answer: 2 + 1 = 3      2 x 1 =2

Step-by-step explanation: + 7 = 7

how do I find the value of a in 30=5a​

Answers

Answer:

a = 30/5 = 6

Step-by-step explanation:

Answer:

a = 6

Step-by-step explanation:

You need to try to get "a" alone.

So, since the equation shows a is being multiplied by 5, you need to divide it by 5 to get "a" alone.

Whatever you do to one side, you must do the same to the other side.

So basically, you divide both sides by 5 to find "a"

City officials are putting a garden around a memorial site as shown below.





Part A Determine the area of the memorial site in terms of x.

Write your answer as a trinomial and include units. Show or explain your work.


Part B The outside edges of the garden form a rectangle whose length and

width are proportional to the sides of the memorial site, increased

by a scale factor of 3. Determine the lengths of the outside edges of

the garden. Write your answer in simplest form.


Part C Determine the area of the garden in terms of x. Write your answer in

simplest form. Show or explain your work

Answers

Answer:

I only remember how to do part A, so sorry for using up an answer.

Step-by-step explanation:

Part A:

[tex](3x+5)(4x+7)\\ 12x^2+21x+20x+35\\ 12x^2+41x+35 ft^2[/tex]

(I also don't know if this is the form you need it in, but I hope I could help a little.)

The area of the memorial site is 12x² + 41x + 35 square units,  the lengths of the outside edges of the garden are 12x + 21 units and 9x + 15 units and 108x²+369x+315 is the area of the garden in terms of x.

What is Area of Rectangle?

The area of Rectangle is length times of width.

(a) The area of the memorial site is given by multiplying the length and width:

Area = (4x + 7)(3x + 5)

Expanding this expression using the distributive property, we get:

Area = 12x²+ 41x + 35

Therefore, the area of the memorial site is 12x² + 41x + 35 square units.

(b) The length and width of the garden are proportional to the length and width of the memorial site, increased by a scale factor of 3.

Length of garden = 3(4x + 7) = 12x + 21

Width of garden = 3(3x + 5) = 9x + 15

Therefore, the lengths of the outside edges of the garden are 12x + 21 units and 9x + 15 units.

(c)  The area of the garden is given by multiplying the length and width:

Area of garden = (12x + 21)(9x + 15)

=108x²+180x+189x+315

=108x²+369x+315

Hence,  the area of the memorial site is 12x² + 41x + 35 square units,  the lengths of the outside edges of the garden are 12x + 21 units and 9x + 15 units and 108x²+369x+315 is the area of the garden in terms of x.

To learn more on Area of Rectangle click:

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What is the area of a regular pentagon if its apothem has a length of 4 feet and each side has a length of 5.8 feet?
a 139.2 ft?
b. 58 ft2
C. 116 ft2
d 69.6 ft-

Answers

The area of a regular pentagon is 58 ft2. thus option B is correct.

What is apothem?

Apothem for a regular polygon is a line segment that originates from the center of the regular polygon and touches the mid of one of the sides of the regular polygon.

It is perpendicular to the regular polygon's side it touches.

Given; An apothem has a length of 4 feet and each side has a length of 5.8 feet.

The area of any regular polygon can be calculated as:

Area = number of sides (n) x 0.5 x length of sides (s) x apothem (a)

Area = 5 x 0.5 x 4 x 5.8

Area = 58

Hence, the area of a regular pentagon is 58 ft2. thus option B is correct.

Learn more about apothem here:

https://brainly.com/question/12090932

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please help me NOW, I have a MIN LEFT HURRY

Answers

Numbers are too small to see gosh dammit

Help I’ll give Brainly est

Answers

Answer:

26 sq units.......

There are 60 people waiting in line for a movie. If 20 percent are wearing hats, how many people in line were not wearing hats?

Answers

Answer:

48 people

Step-by-step explanation:

To find 20% of 60, you multiply 60 by .2 and get 12. Subtract 12 from 60, and 48 people were not wearing hats.

Calcule el décimo termino de una progresión geométrica que Los términos son 32 , 16 , 8 , 4 ................,

Answers

Respuesta:

1/16

Explicación paso a paso:

Dada la secuencia geométrica: 32, 16, 8, 4 ................,

El enésimo término de una progresión geométrica se obtiene mediante la relación:

enésimo término = ar ^ (n-1)

Dónde ; a = primer término = 32; n = enésimo término; r = razón común

r = a2 / a1 = a3 / a2

r = 16/32 = 8/16

r = 1/2

Por lo tanto, el décimo término:

n (10) = 32 * (1/2) ^ (10 - 1)

n (10) = 32 * (1/2) ^ 9

n (10) = 32 * (1/512)

n (10) = 32/512

n (10) = 1/16

Por lo tanto, el décimo término es 1/16

You might need: Calculator
What is the area of the following circle?
Either enter an exact answer in terms of it or use 3.14 for and enter your answer as a decimal.
T=7
units?
Show Calculator

Answers

Answer:

Area = 153.8 cm/ m

Step-by-step explanation:

Area of circle = 22 ÷ 7 × r²

= 22 ÷ 7 × (7²)

= 22 ÷ 7 × 49

= 3.14 × 49

= 153.8 cm/ m


Avery is solving the following equation.
-2[m - 2] = -6
Which equation is equivalent to Avery's equation?
A. – 2m + 4 = -6
B. Im - 2] = -3
C. 2m + 4 = 6
D. Im - 2) = 3

Answers

Answer:

A. – 2m + 4 = -6

Step-by-step explanation:

I should know. I did the question.

An investor puts ​$800 in an account that pays 2​% interest compounded annually. Find the account balance after 6 years.

Answers

2/100x6=0.12
800x0.12=96$

Answer:

$900.929

Step-by-step explanation:

hope it helps you

please mark me as brainlist

John mows 3 of his neighbors yards for $20 a yard. How much money did he make?

Answers

Answer:

60

Step-by-step explanation:

Answer:

The answer is $60

Step-by-step explanation:

If each yard earns John $20, and John cuts 3 yards, then John earns $60.

3 • 20 = 60

Is this a function? Why or why not?

Answers

Answer:

Yes because there are no repeated dependent variables.

Step-by-step explanation:

。゚゚・。・゚゚。
゚。Pain is temporary, swag is forever
゚・。・ <3

Answers

very very tru thank u for the inspiring quote

The parallelogram shown below has an area of 35 units^2 2 squared. Find the missing height. h =h=h, equals units

Answers

Answer:

h = 5 units

Step-by-step explanation:

Given that,

The area of the parallelogram, A = 35 unit²

In the attached figure, we can see that the base is 7 unit.

We know that,

Area of a parallelogram, A = b × h

So,

[tex]h=\dfrac{A}{b}\\\\h=\dfrac{35}{7}\\\\h=5\ units[/tex]

So, the value of h is equal to 5 units.

which equation can be used to solve for x in the diagram?

a- 11x = 7x

b- 7x + 90 = 11x

c- 7x + 11z = 180

d- 7x + 11x = 90

Answers

Answer:

The answer is D. 7x + 11x = 90

Brain Teaser! Will be posting till I run out! Winner gets a brainliest!

Question: Find the area of the red triangle.

Answers

Answer:

i tried

Step-by-step explanation:

im suppose to be gifted... it took me 20 minutes and im in 9th grade RIP, but is it 9??

Move the center of the circle to a different location, and record the required values in the table. Check the boxes for the area of the circle and the area of the sector after you move the center. Round the values to two decimal places.

Answers

Answer: answer in the image

Step-by-step explanation:

Answer:

Step-by-step explanation:

Esther uses 9.4 pints of blue paint and white paint to paint her bedroom walls. 3 5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?

Answers

Answer:

3.76

Step-by-step explanation:

Esther uses 9.4 pints of blur paint and white pant for her bedroom

3/5 of this amount is blue paint while the rest is white paint

3/5

= 0.6×100

= 60

Therefore the amount of white paint can be calculated as follows

40/100 × 9.4

= 0.4×9.4

= 3.76

Find f(-2) for the function f (x) = 3x^2-2x+7

Answers

Answer:

23

Step-by-step explanation:

plug -2 in for x then solve

find the area of the shaded region. round your answer to the nearest hundredth

Answers

Answer:

16 meters

Step-by-step explanation:

sana makatulong

Need help in this ASAP

Answers

Answer:

The m∠YXW is 125°.

Addition equation: m∠YXW = m∠YXZ + m∠ZXW = 85° + 40° = 125°

Step-by-step explanation:

To find the m∠YXW you would need to add the m∠YXZ and m∠ZXW together:

m∠YXW = m∠YXZ + m∠ZXW = 85° + 40° = 125°

A kite was was broken into two triangles. What is the height, h, one of the triangles?

A) 4 ft
B) 8 ft
C) 7 ft
D) 14 ft

Answers

I think the answer is A) 4ft

When you look at the picture the the width is 8 ft divided that by 2 since it is broken into two triangle to get the answer 4

Answer:

4

Step-by-step explanation:

took test on edge :D

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