All categories

3 years ago

How are the step by step math problem suppose to be for this math problem (-2-8)^2?

Mathematics

1 answer:

Sidana [21]3 years ago

6 0

Answer:

the answer is 100

Step-by-step explanation:

(-2-8)^2

(-2-8)(-2-8)

-2(-2-8)-8(-2-8)

4+16+16+64

20+80

100

You might be interested in

The principal of a middle school claims that test scores of the seventh-graders at his school vary less than the test scores of

AveGali [126]

Answer:

There is sufficient evidence to support the claim that the standard deviation is less than 14.7.

Step-by-step explanation:

From the question we are told that that the null hypothesis is

$H_o : \sigma < 14.7$

Now given from the question that this null hypothesis was rejected, it mean, in non technical term that there is sufficient evidence to support the claim that the standard deviation is less than 14.7.

3 0

3 years ago

How can you express (15 30) as a multiple of a sum of whole numbers with no common factor?

Alex_Xolod [135]

Well theoretically speaking you could but that would take a long time and 15 and 30 have a common factor of 5 and 15. So I think for this one you can't since there are two common factors.
<span />

4 0

2 years ago

Read 2 more answers

Mya creates the

liubo4ka [24]

Mya should put 3/5 in each serving.

5 0

3 years ago

Half a number increased by the quotient of p and t

NeX [460]

Answer:

Step-by-step explanation:

Let the number be 'x'

Half a number = $\frac{1}{2}x$

Half a number increased by the quotient of p and t

$\frac{1}{2}x+\frac{p}{t}$

6 0

2 years ago

Solve the equation using the quadratic formula : x^2-10x+25=18

Sever21 [200]

$x^2-10x+25=18 \\ \\x^2-10x+25-18 = 0\\ \\ x^2-10x+ 7 =0 \\ \\a=1 , b = -10 , c= 7 \\ \\ \Delta = b^{2}-4ac = (-10)^{2}-4*1*7=100-28 = 72 \\ \\\sqrt{\Delta }=\sqrt{72}= \sqrt{2*36} =\sqrt{36}*\sqrt{2} =6\sqrt{2}$

$x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{10- 6\sqrt{2}}{2}=\frac{2(5-3\sqrt{2})}{2}= 5-3\sqrt{2}\\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{10+ 6\sqrt{2}}{2}=\frac{2(5+3\sqrt{2})}{2}= 5+3\sqrt{2}$

$Answer : \ x= 5-3\sqrt{2} \ \ or \ \ x = 5+3\sqrt{2}$

8 0

3 years ago