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Serhud [2]
2 years ago
13

Matt decides the length of his table will be 15 in. He calculates that the area of the table is 30 in. squared. Determine if Mat

t’s calculation is correct
Mathematics
1 answer:
Allushta [10]2 years ago
8 0

Answer:No Matt's calculation is not correct.

Step-by-step explanation:

We have to multiply by the number of the area.If it is 4 inches we multiply by 4

15 x 4 =60

A=4 inches squared

A=LxW (length x width )

so you can say that:

Matt is incorrect because He skipped  the step of multiplying 2 by 2 in the formula which is where we get 4 from.

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Find the population variance of: 4 6 8 9 9 <br><br> round to the nearest hundredth
soldi70 [24.7K]

Answer:

Step-by-step explanation:

To find the population variance, we first need the mean:

\bar{x}=\frac{4+6+8+9+9}{5}=\frac{36}{5}=7.2 so the mean is 7.2. To find the population variance (which is almost exactly the same as the sample variance except for a small difference in the denominators of the formula) we have to take each number minus the mean, and then square the difference. Add together all these squared numbers and then divide by the number of numbers. Like this:

(4-7.2)^2=10.24\\(6-7.2)^2=1.44\\(8-7.2)^2=.64\\(9-7.2)^2=3.24\\(9-7.2)^2=3.24

Add together those numbers and divide them by 5:

\sigma=\frac{10.24+1.44+.64+3.24+3.24}{5}=\frac{18.8}{5}=3.76

5 0
2 years ago
Help me with part e please.​
Andru [333]
I believe it would be 98
3 0
3 years ago
A video game was originally priced at $60.
pantera1 [17]

Answer: 71

Step-by-step explanation: fine the new value and Divided by the old value then multiplied by 100 then you get your answer

8 0
3 years ago
Find the leg of each isosceles right triangle when the hypotenuse is 5 square root 6
kozerog [31]
Hypotenuse = 5√6

Let the length of each leg be x, since it is Isosceles .

x² + x² = (5√6)²

2x² = (5 * 5 * √6 * √6)

2x² = 150

x² = 150/2

x² = 75

x = √75

x = √(25 * 3)

x = √25 * √3

x = 5√3 
5 0
3 years ago
What is solution to this system of equations? x + 4y = 12 and x = 0<br>PLSSS hurry​
Margaret [11]

Answer:

x=0 and y=3

Step-by-step explanation:

If x=0, then we can just plug that value into the other equation and solve for y:

x+4y=12

0+4y=12

4y=12

y=3

Therefore, the solution to the system of equations is x=0 and y=3

3 0
2 years ago
Read 2 more answers
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