find the surface area

Answer:

21+8x

Step-by-step explanation:

7(3 – X) + 15x

21-7x+15x

21(-7x+15x)

21+8x

Answer:

-7x+15x+21

Step-by-step explanation:

Answer:

B [tex]1/4^2[/tex] and A [tex]4^1/4^3[/tex]

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

divided 825 by 250 which give you 3.3

Answer:

You should use MathPapa.

Step-by-step explanation:

Answer:

nustiu scz

Step-by-step explanation:

sorry its too difficult

Answer:

1

Step-by-step explanation:

if it was 10 it would be 2, but it isnt. and it cant be a number with a decimal cause i would be surprised if a math problem has it where you cut people in half or portions

Answer:

9. B 10. C 11. B 12. B

Step-by-step explanation:

Step-by-step explanation:

= 6 / 8 × 2

= 0.75 × 2

= 1.5

plz follow me

Answer:

22. 108 cm²

23. 100 cm²

Step-by-step explanation:

The area of a trapazoid is:

A = (a+b)/2 (h)

input the values:

22. (6+12)/2 (6)

23. (7+18)/2 (4)

Hope this helped :)

Answer:

-15

Step-by-step explanation:

imma pro

Answer: r = - 25

Step-by-step explanation:

Answer:

there is no solution

Step-by-step explanation:

y = 2x + 1

put into other equation

2x - 2x + 1 = 3

0x + 1 = 3

0x = 2

0/0x = 2/0

x = undefined

Answer:

2/1

Step-by-step explanation:

20/10 devided by 10 to both numbers

Answer:

The enlarged picture will have a width of 35.8 cm

Step-by-step explanation:

We can solve this question by proportions, using rule of three.

When the length is of 15 centimeters, the width will be of 14.5 centimeters. What is the width when the length is 37 centimeters?

15 cm - 14.5 cm

37 cm - x

Applying cross multiplication

[tex]15x = 14.5*37[/tex]

[tex]x = \frac{14.5*37}{15}[/tex]

[tex]x = 35.8[/tex]

The enlarged picture will have a width of 35.8 cm

Answer:

36.25 cm

Step-by-step explanation:

37.5 divided by 15 is 2.5 then multiply 14.5 by 2.5 and your answer will be 36.25 cm.

I hope this helps the last answer you got was close but incorrect. I really hope I get brainlyiest. :)

Answer:

17) vertical

18) vertical

19) vertical

20) adjacent

Answer:

no

Step-by-step explanation:

Answer:

4x2 - 3xy - 9y2

Step-by-step explanation:

Answer:

B. $99.75

Step-by-step explanation:

The expression is 5.25(3+9+7) which is 99.75

Answer:

c

Step-by-step explanation:

Answer:

x = -4/5, y = 13/20

Step-by-step explanation:

-10x + 4 = 12

-10x = 8

x = -4/5

3x - 4y = -5

3(-4/5) - 4y = -5

-12/5 - 4y = -5

-4y = -13/5

y = 13/20

Double check:

3x - 4y = -5

3(-4/5) - 4(13/20) = -5

-12/5 - 13 = -5 (true)

Answer:

0

Step-by-step explanation:

Step-by-step explanation:

f(g(x))

= f(4x)

= (4x) - 3. (A)

Step-by-step explanation:

option A is the correct answer according to my opinion .

plz mark my answer as brainlist if you find it useful.

Answer:

1) yes

2) no

3) no

4) no

5) yes

6) yes

7) yes

8) yes

9) circle equation - B

10) circle equation - D

11) 12 people in each team

sorry im not able to answer for 12 , 13 and 14 i have urgent work im so sorry

The resultant force in the example presented is approximately 774 pounds.

The magnitude or size of a mathematical item defines whether it is larger or smaller than other objects of the same kind in mathematics.

Formally speaking, the size of an object is the visible outcome of an ordering—of the class of objects to which it belongs.

Consider the following scenario: the force is 10 N in the east.

The direction is indicated by "towards the east," while the force is indicated by "10."

Magnitude can be thought of as simply the "value" or "amount" of any physical quantity.

So, an object is under the influence of two forces with respective magnitudes of 300 pounds and 450 pounds and an angle of 60 degrees between them.

F₁=300 pounds, F₂=450 pounds and θ=60°

Fr=√300²+450²+2×300×450×cos60°

= √90000+502500+13500×0.5

= √90000+502500+6750

= √599250

= 774 pounds

Therefore, the resultant force in the example presented is approximately 774 pounds.

Know more about magnitude here:

https://brainly.com/question/24468862

#SPJ1

Answer: C. 653.91 pounds.

Step-by-step explanation:

Answer:

Around 9.8 tiles

Step-by-step explanation:

The formula is x = (6*9)/5.5.

Step-by-step explanation:

complementary angles means that both of them together = 90

13y +12 + 20y + 12 = 90

add all y together and numbers together

33y + 24 = 90

solve for y

33y= 66. y= 2

now let's get the measurements of the angles

13(2) + 12= 38

20(2) + 12= 52

Answer:

Sonia saved 1889 from her last month's pay

Step-by-step explanation:

Answer:

90 pages in 10 hours :)

Answer:

90 pages

Step-by-step explanation:

First, you need to find the unit rate of how many pages he can read.

So, you divide 18 pages by 2 hours = 9 pages per hour.

Then, you multiply 9*10 hours to find out how many pages he will read in 10 hours.

You get 90.

H and N are congruent because they are both 58 degrees,

J and L are congruent because they are both 62 degrees,

and K and M are congruent because they are both 60 degrees.

Therefore triangle HJK is congruent to triangle NLM.

Answer:

The answer is C

Step-by-step explanation:

Kause i said so

Answer: g = 13 / Thats the output

Step-by-step explanation:

g = 25 - 3r

Its telling you the r is 4 since its the input.

g = 25 - 3 ( 4 )   see!! just plug in the number

Now Solve

g = 25 - 12

g = 13

Answer:

g = 13

Step-by-step explanation:

since r = 4, you make the equation :

g=25-3(4)

first you multiply 3 and 4 and you get 12

g=25-12

and 25 - 12 is 13 which equals :

g = 13