What is the area of the rectangle? A)40 units B)45 C)50 D)55

Is that 2x squared + 5x? Correct me if I'm wrong.

natulia [17]

Well, what I would do is divide it into two shapes. Cut off the bottom part to make two separate quadrilaterals, and you'd have a square with sides of x. So the area would be x^2. Then, for the remaining piece (rectangle), add the x from the square bit to 5 for one side, and the other side would be x. So you'd have 5x * x, which equals 5x^2. Add the two separate area's together to get the total area, which would give you 6x^2. Hope that helped! :)

4 0

4 years ago

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If a spacecraft was parked on Venus and needed to make a flight to Jupiter, how far would it need to travel? (Assume both planet

victus00 [196]

In miles 365 million miles or 365,000,000
in km, 588 million km or 588,000,000

so
scientific notation=(number less than 10 and greater than or equal to 1) times 10^n

so
we need to move the decimal point 8 spaces to the left
to compensiate for that, we multiply by 10⁸ which will move it 8 to the right
so

365,000,000 mi=3.65 times 10⁸ mi
588,000,000 km=5.88 times 10⁸ km

those are the distances in scientific notation

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3 years ago

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A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,722. Suppose that a

max2010maxim [7]

Answer:

Option C - Reject H0. We have convincing evidence that the mean salary offer for accounting graduates of this university is higher than the national average of $48,722.

Step-by-step explanation:

First of all let's define the hypothesis;

Null hypothesis;H0; μ = $48,722

Alternative hypothesis;Ha; μ > $48,722

Now, let's find the test statistic for the z-score. Formula is;

z = (x' - μ)/(σ/√n)

We are given;

x' = 48,722

μ = 49,870

σ = 3900

n = 50

Thus;

z = (49870- 48722)/(3900/√50)

z = 2.08

So from online p-value calculator as attached, using z = 2.08 and α = 0.05 ,we have p = 0.037526

This p-value of 0.037526 is less than the significance value of 0.05,thus, we reject the claim that that the mean salary offer for accounting graduates of this university is higher than the national average of $48,722