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jok3333 [9.3K]
2 years ago
5

Josie has a small fish tank shaped like a rectangular prism. Her fish tank measures 7 inches tall and 9 inches wide. If Josie's

fish tank holds 378 cubic inches of water, how many inches long is it?
Mathematics
1 answer:
irinina [24]2 years ago
3 0

Answer:6

Step-by-step explanation:

If we know that the formula of a rectangular prism is length * width * height, and we know the height and width are 7 and 9, the length is the only thing that is left. The volume is 378, and so now we have:

length * 7 * 9 = 378. Dividing the 9 and 7, we get 378/(9*7). The length is 6.

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Answer:

200020ft

Step-by-step explanation:

4 0
3 years ago
A soccer player uses her head to hit a ball up in the air from a height of 2 meters with an initial vertical velocity of 5 meter
ozzi

Answer:

The ball will hit the ground in 1.33 s if no one touches it. The equation has 2 real solutions.

Step-by-step explanation:

The ball will hit the ground when its height is equal to 0 meters, therefore using this value in the expression and solving for "t" will give us the correct solutions.

h = -4.9*t^2 + 5*t + 2\\\\-4.9*t^2 + 5*t + 2 = 0\\\\t_{1,2} = \frac{-5 \pm \sqrt{5^2 - 4*(-4.9)*(2)}}{2*(-4.9)}\\\\t_{1,2} = \frac{-5 \pm \sqrt{64.2}}{-9.8}\\\\t_{1,2} =\frac{-5 \pm 8.0125}{-9.8}\\\\t_1 = \frac{-5 - 8.0125}{-9.8} = 1.33 \text{ s}\\\\t_2 = \frac{-5 + 8.0125}{-9.8} = -0.3 \text{ s}

The ball will hit the ground in 1.33 s if no one touches it. The equation has 2 real solutions.

8 0
3 years ago
If x=6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equa
Lena [83]
Since x is the x-intercepts, that means x'=x" =6 or in other word the discriminante ( Δ = b² 4ac)  =0. Answer is A
3 0
3 years ago
Please explain how you get the answer to...<br> a+2a+7+4a-8
sammy [17]

Answer:

9+2a+7+4a-8

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6a+8

Step-by-step explanation:

you can't really get an answer for this problem but you can simplify it

8 0
2 years ago
I need help with this pleaseee
Elodia [21]

Answer:

34, D

Step-by-step explanation:

Change 4 and 1/4 to an improper fraction

4 1/4 = 17/4

Now, you would divide 17/4 by 1/8...

17/4 divided by 1/8

Reciprocate the fraction 1/8 and change the division sign to multiplication to get...

17/4 multiplied by 8/1

= 136 / 4

Simplify

136 / 4

= 34

So, you can grow 34 plants.

Hope this helps!

7 0
2 years ago
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