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2 years ago

The volume of a prism is 230 mm3.

Mathematics

1 answer:

Lorico [155]2 years ago

7 0

The answer would be E because as you may know, 10 mm is equal to 1 cm. So, 230 mm³ is equal to 23 cm³.

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Can someone please give me the (Answers) to this? ... please ...<br><br> I need help….

Mrac [35]

Answer:

Step-by-step explanation:

5. x/7 = 9/x

x^2 = 63

x= 3 $\sqrt{7}$

6. x/84 = 16/x

x^2 = 1344

x=8 $\sqrt{21}$

7. x/12 = 12/16

16x=144

x=9

8. x/48 = 48/64

64x=2304

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1 year ago

Read 2 more answers

20. Solve 3(5x − 4) < 15x.<br> All Real Numbers<br> x>-4 <br>x<4<br>no solution

Natasha2012 [34]

Answer:

No solution

Step-by-step explanation:

$3(5x - 4) < 15x \\ 15x - 12 < 15x \\ 15x - 15x < 12 \\ 0 < 12$

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2 years ago

Solve the system of linear equations by substitution x+4y =37 y = -x + 16

pantera1 [17]

You plug -x+16 in for y in x+4y=37 to get x after you multiply x+4y=37 by -1.
-x-4(-x+16)=-37
-x+4x-64=-37
3x-64=-37
3x=27
x=9
Then you plug 9 into either equation to get y.
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4 0

3 years ago

Aiden is eating from the box of cereal shown. Find the total surface area of the box. cereal 13.5 in. 2.5 in. 8 in. Total surfac

blondinia [14]

Answer:

Step-by-step explanation:

Two of the sides are 13.5 inches by 2.5 inches, two sides are 13.5 inches by 8 inches, and two sides are 2.5 inches by 8 inches.

Surface area = 2*13.5*2.5 + 2*13.5*8 + 2*2.5*8

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2 years ago

In the air, it had an average speed of 16 m/s In the water, it had an average speed of 3 m/s before hitting the seabed. The tota

julia-pushkina [17]

<h2>The stone fall in air for 7 seconds and fall in water for 5 seconds.</h2>

Step-by-step explanation:

Total distance to sea bed = 127 m

Let the distance traveled in air be s.

Distance traveled in water = 127 - s

Average velocity in air = 16 m/s

Average velocity in water = 3 m/s

Distance traveled in air = Average velocity in air x Time in air

s = 16 x t₁

$t_1=\frac{s}{16}$

Distance traveled in water = Average velocity in water x Time in water

127-s = 3 x t₂

$t_2=\frac{127-s}{3}$

We have total time is 12 seconds

That is

t₁ + t₂ = 12

$\frac{s}{16}+\frac{127-s}{3}=12\\\\3s+2032-16s=576\\\\13s=1456\\\\s=112m$

We have

s = 16 x t₁

112 = 16 x t₁

t₁ = 7 s

t₁ + t₂ = 12

7 + t₂ = 12

t₂ = 5 s

The stone fall in air for 7 seconds and fall in water for 5 seconds.

7 0

2 years ago