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4vir4ik [10]
3 years ago
12

Please help help ———-

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
3 0

Answer: 174 - 5 = 169 square root of 169 is 13x3=39  = 5.57142857143

Step-by-step explanation:

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Which of the following is a possible measure of the area of a square rug?
ivolga24 [154]
I say B because if it's a square that means each side is equal...24 divided by four sides is 6 inches each
5 0
3 years ago
Please find which quadratic equation matches the graph with work attached
lesya [120]

Answer:

C

Step-by-step explanation:

Firstly, we know that the function must be negative due to its shape. This means that the answer cannot be B

Next we can use the equation x=\frac{-b}{2a} that is used in order to find the vertex of the parabola.

A)

f(x)=-x^2+6x+7\\a=-1,b=6,c=7\\\\x=\frac{-6}{-2} \\x=3

As the vertex is at x=3 on the graph, this one could be a contender.

C)

f(x)=-x^2+6x-7\\a=-1,b=6, c=-7\\\\x=\frac{-6}{-2} \\\\x=3

This also could be the equation

D)

f(x)=-x^2-6x-7\\\\a=-1, b=-6, c=-7\\\\x=\frac{6}{-2} \\\\x=-3

This rules option D out.

For this last step, we can look at where the zeroes would be for each equation. (These values are irrational, so we cannot look at specific number)

A)

f(x)=-(x^2-6x-7)

As this equation has a negative value for c, this means that one zero must be positive and the other must be negative.

This means that option A can be ruled out

C)

f(x)=-(x^2-6x+7)

As this equation has a positive value for c, this means that both of the zeroes must be positive. This means that it is the only one that fits all of the criteria.

7 0
3 years ago
Evaluate 3x^3 - 5y^2 x=5 y=2
Sliva [168]

Answer:

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Step-by-step explanation:

3x^{3}-5y^{2}=3*5³-5*2²

3*5³-5*2²=3*125-5*4

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375-20=355

6 0
3 years ago
Use the Pythagorean Theorem to find the length of the missing side of the right triangle. Then find the value of each of the six
olganol [36]

Answer:

The length of the missing side can be calculated by the following steps;

Step-by-step explanation:

5 0
3 years ago
The product of a number and the number decreased by 4 is 60. write a quadratic equation that models the verbal sentence. let n r
USPshnik [31]

Answer:

n = 2 + (60/2)

Step-by-step explanation:

6 0
2 years ago
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