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netineya [11]
3 years ago
13

Whay maked this statement true ?7-^2=?

Mathematics
2 answers:
ruslelena [56]3 years ago
3 0
I'm gonna say guess the equation is -7^2.

The answer would be 49.

49 would make that equation true.

Veronika [31]3 years ago
3 0
Remember the following:
-ve * -ve = +ve
-ve * +ve = -ve
x² = x * x
x⁻² = \frac{1}{x^2}

Now, for the given:
1- If the given equation is -(7)², then:
-(7)² = - (7*7) = -49
Therefore,, -49 would make this statement true.

2- If the given equation is (-7)², then:
(-7)² = (-7) * (-7) = 49
Therefore, 49 would make this statement true

3- If the given equation is 7⁻², then:
7⁻² = \frac{1}{7^2} =  \frac{1}{7}  *  \frac{1}{7}  =  \frac{1}{49}

Therefore, \frac{1}{49} would make the statement true.

Hope this helps :)
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5 0
3 years ago
If 12a - 5 = 4a + 11 ,then a= what?
FinnZ [79.3K]

Answer:

a=2

Step-by-step explanation:

12a - 5 = 4a + 11

Subtract 4a from each side

12a-4a - 5 = 4a-4a + 11

8a -5 = 11

Add 5 to each side

8a -5+5 = 11+5

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7 0
3 years ago
Read 2 more answers
Use p = 2 and p = 8 to determine if the two expressions are equivalent. 4(2 + p) 14 + p Complete the statements.
Maru [420]

Answer:

The expressions are not equivalent.

Step-by-step explanation:

Here we have two expressions:

4*(2 + p)

14 + p

We want to evaluate these two expressions in two different values of p to check if the expressions are equivalent or not.

First, we evaluate both of them in p = 2, this is just replace p by 2 in each expression and then solve it.

4*(2 + 2) = 4*4 = 16

14 + 2 = 16

In this case, we can see that both expressions yield the same number, so we could think that the expressions are equivalent, now let's try with other value of p.

Now let's do it with p = 8

4*(2 + 8) = 4*10 = 40

14 + 8 = 22

Now we can see that the results are different, then we can conclude that the expressions are not equivalent.

4 0
3 years ago
What is the volume of this solid figure made with cubes?
Tems11 [23]

Answer: 5

Step-by-step explanation:

hope this help get a A

3 0
3 years ago
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bija089 [108]
The answer should be 38/7
7 0
3 years ago
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