3 years ago

Find the difference (2ab-9a+3)-(9ab+7)

1 answer:

4 0

-7ab-9a-4 because u have to combine like terms and then subtract if that makes any sense

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trasher [3.6K]

40 inches because a rectangle has 2 sets of parallel lines and if the width and length are 10 then you just have to add up all the sides.

8 0

2 years ago

kirza4 [7]

We want to find the value that makes

$P(X\ge x)=0.2$

To find it we must look at the standard normal table, using the complementary cumulative table we find that

$P(Z\ge z)=0.20045\Leftrightarrow z=0.84$

Then, using the z-score we can find the minimum score needed, remember that

$z=\frac{x-\mu}{\sigma}$

Where

σ = standard deviation

μ = mean

And in our example, x = minimum score needed, therefore

$\begin{gathered} 0.84=\frac{x-480}{105} \\ \\ x=0.84\cdot105+480 \\ \\ x=568.2 \end{gathered}$

Rounding to the nearest integer the minimum score needed is 568, if you get 568 you are at the top 20.1%.

7 0

10 months ago

Dovator [93]

I think your question is asking how much money he owes. He owes $90

8 0

2 years ago

3241004551 [841]

Answer is squareroot of 21 or 4.58 in decimal
by pythagorean theorem

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Mark me as brainliest if you find the solution helpful. thanks
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3 0

2 years ago

Blababa [14]

Answer:

2,000

4,000

7,000

put points on (2, 2,000) - (4, 4,000) - and (7, 7,000)

Step-by-step explanation:

6 0

1 year ago