I don't understand how to find the volume of these shapes.

Answer:

63?

Step-by-step explanation:

biggest= 42

smallest = 21

Answer:

126

Step-by-step explanation:

the answer is 126 hope that helps

Answer:

126

Step-by-step explanation:

this is the right answer

Answer:

R = 30

Step-by-step explanation:

Given y is directly proportional to R² then the equation relating them is

y = kR² ← k is the constant of proportion

To find k use the condition when R = 4, y = 24, then

24 = k × 4² = 16k ( divide both sides by 16 )

1.5 = k

y = 1.5R² ← equation of proportion

When y = 1350 , then

1350 = 1.5R² ( divide both sides by 1.5 )

900 = R² ( take the square root of both sides )

[tex]\sqrt{900}[/tex] = R , that is

R = 30

Answer:

3 is the co-efficient of x and 2 is the constant.

Step-by-step explanation:

Answer:

Matt used 65 carpet tiles.

Step-by-step explanation:

Answer:

its P

Step-by-step explanation:

Answer:

£7.80

Step-by-step explanation:

Since you multiply 2 by 3 to get 6, we are going to multiply 2.6 by 3

2.6 x 3 = 7.8

Thus the cost of 6 litres of lemonade is £7.80

Answer:

y = 1/2 x+4

Step-by-step explanation:

Slope intercept form is y = mx+b, where m equals the slope and b is the y-intercept.

The slope can be calculated using the formula [tex]m = \frac{y_{1}-y_{2} }{x_{1}-x_{2} }[/tex].

I'll be plugging in (2,5) and (4,6) to calculate the slope.

m = (6-5)/(4-2) = 1/2

The y-intercept is the y-coordinate of where the line meets the y-axis. In the graph, you can see that the line intersects with the y-axis at (0,4). The y-coordinate of (0,4) is 4, so therefore it is the y-intercept.

Plugin m = 1/2 and b = 4 into the slope-intercept formula (y = mx+b), and you get y = 1/2 x+4

Answer:

4a. 13

4b. -4

Step-by-step explanation:

2x-6/5 = 4 (Muti each side by 5)

2x-6 = 20

2x = 26 (Divide each side by 2)

x = 13

7- 2x/4 = 9

-2x/4 = 2 (Muti each side by 4)

-2x = 8 (Divide each side by -2)

x = -4

Answer:

15.5 quarts

Step-by-step explanation:

1.5 +8 + 4 + 2

there is need to convert the measures that are not in quarts to quarts

1 gallon  = 4 quarts  : 2 x 4 = 8 quarts

1 cup = 0.25 quarts : 0,25 x 8 = 2 quarts

1 pint = 0.5 quarts : 0.5 x 3 = 1.5 quarts

Total quarts = 1.5 +8 + 4 + 2 = 15.5 quarts

Answer:

1 yes and they have a scale factor of 1:2

2 yes and they have a scale factor of 1:4

Step-by-step explanation:

Answer:

1 is similar 2 is also similar

Step-by-step explanation:

1. 4&6 times 2 is 8&12

2.6&5 times 4 is 24&20

Answer:

the answer is C

Step-by-step explanation:

please mark brainlist

Answer:

D.-26

Step-by-step explanation:

-26+12=-14 Hope this helps :)

Answer:

A

Step-by-step explanation:

2√6 + 4

Answer: A

Step-by-step explanation:

Answer:

the slop is gaga

Step-by-step explanation:

Answer:

a) (-2,-1)

b)(-3,0) (-1,0)

Step-by-step explanation:

Read the points off of the graph, the turning point is the pottom bit and the roots are where it meets 0 on the x axis

Answer:

x = 33°

Step-by-step explanation:

All triangles have added angles equal to 180°

So 180 - 101 = 79

79 - 46 = 33

So the final angle is 33

Answer:

20%

Step-by-step explanation:

10 each dollar is 10% for 2 dollars =20%

Step-by-step explanation:

I would mulitiply the top row by -5 so the x's would eliminate

Answer:

The discount will take the total down to 71.00$

Step-by-step explanation:

i think this is the answer im not for sure but i hope this helps you :)

Answer:

x= 3.5

Step-by-step explanation:

2x+3=10      (-3)

2x = 7         ( divide 2)

x = 3.5

Answer:

It takes 3.5 cups of pancake mix and 2.625 cups of water to make 21 pancakes.

Step-by-step explain

First divide each by 6 to figure out how much mix and water it takes to make one pancake

1/6 mix + .125 cups water = 1 pancake

Multiple each by 21 to know how much mix and water it takes to make 21 pancakes

3.5 mix + 2.625 water = 21 pancakes

Answer:

15 3/4

Step-by-step explanation:

you multiply 3/4 times 21 then you will get 3/4 times 21/1 and the answer is 63/4 and simplify and get 15 and 3/4.

Answer:

about 58 years 6 months

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 7.25%/100 = 0.0725 per year,

then, solving our equation

t = 10600 / ( 2500 × 0.0725 ) = 58.4828

t = 58.4828 years

The time required to

accumulate simple interest of $ 10,600.00

from a principal of $ 2,500.00

at an interest rate of 7.25% per year

is 58.4828 years (about 58 years 6 months).

Answer:

5 years

Step-by-step explanation:

Find out how much you earn a year from interest and money.

Find 1%.

100% = 2500

1% = 2500 ÷ 100 = 25

7.25% = 25 x 7.25 = 181.25

2500 + 181.25 = 2681.25

Now divide how much you earn from money and interest from 13100.

13100 ÷ 2681.25 = 4.88

4.88 estimated to 5

Answer:

B

Step-by-step explanation:

78x9=702

702/6=117 minutes.

Volume of water in the tank:

Differentiate both sides with respect to time t :

V changes at a rate of 2000 cc/min (cubic cm per minute); use this to solve for dh/dt :

(The question asks how the height changes at the exact moment the height is 50 cm, but this info is a red herring because the rate of change is constant.)