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Elis [28]
3 years ago
13

What is the side length of a square with half the area of a square with area 198?

Mathematics
1 answer:
Murljashka [212]3 years ago
6 0

The square root of 198 is 14, so that is one side of that square. Divide by 2 to get 7 mm. B

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What is the solution to the equation? 13 3/4+x=7 1/4
oksano4ka [1.4K]

Answer:

x=-13/2

Step-by-step explanation:

13 3/4=55/4

7 1/4=29/4

---------------------

55/4+x=29/4

x=29/4-55/4

x=-26/4

simplify

x=-13/2

4 0
3 years ago
An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the
Nitella [24]

Answer:

W=2452.5 J

Step-by-step explanation:

The work is define as the integral of the force times distance. So we have:

W=\int^{a}_{b}Fxdx

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V is the volume (V=2*1*1=2 m³)

So the work will be:

W=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0}19620xdx=19620(\frac{x^{2}}{2})|^{0.5}_{0}

The limit of integration is between 0 and 0.5 because we want to pump half of the water out of the aquarium.

W=19620(\frac{x^{2}}{2})|^{0.5}_{0}=19620(\frac{0.5^{2}}{2})

W=2452.5 J

I hope it helps you!

8 0
3 years ago
URGENT<br> Which of the following statements is true? Select all that apply.
valina [46]

Answer:

C is true also

Step-by-step explanation:

3 0
3 years ago
A performer expects to sell 5000 tickets for an upcoming concert. They plan to make a total of 311,000 in sales from these ticke
dybincka [34]

Answer:

62.2x=y

Step-by-step explanation:

cost/ticket (c)

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c = $62.20

7 0
3 years ago
Mike pays $20 per hour for algebra tutoring. The equation y = 20x relates the cost of tutoring (y) to the number of hours (x) he
kotykmax [81]

The unit rate in the equation is 20.

Option C) is the correct answer.

<u>Step-by-step explanation</u>:

Step 1 :

In the given equation y = 20x

where,

x ⇒ total number of hours for tutoring

20 ⇒  the cost per hour of tutoring

y ⇒ the total cost for total hours of tutoring

Step 2 :

Unit rate refers to the value per hour.

Here, the cost for 1 hour of tutoring is $20.

∴ The unit rate is $20 per hour of tutoring.

8 0
4 years ago
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