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3 years ago

I need help with this plz

Mathematics

1 answer:

sergiy2304 [10]3 years ago

6 0

Answer:

Step-by-step explanation:

7/10

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Hi!

Elina [12.6K]

Answer:

404.09x cm³ (to 5 s.f.),

where x is the unknown height of the shape.

Step-by-step explanation:

Volume of the shape

= base area × height

= (large semicircle- small semicircle) × thickness of shape

Area of circle= $\pi {r}^{2}$

Area of semicircle= $\frac{1}{2} (\pi)( {r}^{2} )$

Diameter of small circle= 14

Radius= diameter ÷2

radius= 14 ÷2

radius = 7 cm

Area of small semicircle

$= \frac{1}{2} (\pi)( {7}^{2} ) \\ = \frac{49}{2} \pi$

Radius of large semicircle

= 35 ÷2

= 17.5 cm

Area of large semicircle

$= \frac{1}{2} (\pi)( {17.5}^{2} ) \\ = \frac{1225}{8} \pi$

Base area of shape

$= \frac{1225}{8}\pi - \frac{49}{2} \pi \\ = \frac{1029}{8} \pi$

Since the height if the shape is not given, I'm afraid I cant help you find the volume.

Let the height of the shape be x cm.

Volume of shape= $\frac{1029x}{8} \pi \: cm^{3}$

3 0

3 years ago

8/3 = 3 (c + 5/3) how to solve step by step

Ludmilka [50]

Answer:

Step-by-step explanation:

8/3=3(c+5/3)

multiply both sides by 3

8=9(c+5/3)

divide both sides by 9

8/9=c+5/3

subtract 5/3 from both sides

c=8/9-5/3

change 5/3 to 15/9

c=8/9-15/9

c=-7/9

7 0

3 years ago

Please help! I appreciate the help, and I'll give Brainliest! <:D

agasfer [191]

Answer:

Step-by-step explanation:

Column 1 Column 2 Constant of proportionality

a g g = 7*a 7

e c c = 4*e 4

b f b = 9*f 9

5 0

2 years ago

What Is simplified form of 2+3 (5-2) to the power of 2

lesya692 [45]

In order to find the answer you will have to use PEMDAS and simplify making sure not to solve the equation fully.

$2+3(5-2)^2$

Using PEMDAS:

$2\times2=4$

$2+3\times(5-4)$

$5-4=1$

$2+3\times4$

$3\times4=12$

$2+12$

Therefore your answer is "2+12."

Hope this helps.

7 0

3 years ago

FIRST TO ANSWER WILL GET BRAINLIEST At a local fitness center, members pay a $6 membership fee and $3 for each aerobics class

Tju [1.3M]

Answer:

c represents the number of classes

6 + 5c = 6c

Can you solve for c and answer?

6 0

4 years ago

Read 2 more answers