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2 years ago

My math grade went from a 78 to a 86. What is the percent increase

Mathematics

1 answer:

katen-ka-za [31]2 years ago

7 0

Answer:

10.25641...% or 10.3%

Step-by-step explanation:

(86/78)/78 = 8/78

8/78 * 100 = 400/39 = 10.25641...%

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The Product of 2 rational numbers with different signs is a _________ number

likoan [24]

Answer:

first blank negitave

second blank positive

Step-by-step explanation:

5 0

3 years ago

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paid after the grace period, on average, more than 4 times in 2018, what are the null and alternative hypotheses? Select the cor

Mila [183]

Answer:

H₀: μ = 4 vs. H ₐ: μ > 4

Step-by-step explanation:

A null hypothesis is a sort of hypothesis used in statistics that intends that no statistical significance exists in a set of given observations.

It is a hypothesis of no difference.

It is typically the hypothesis a scientist or experimenter will attempt to refute or discard. It is denoted by H₀.

Whereas, the alternate hypothesis is the contradicting statement to the null hypothesis.

The alternate hypothesis describes direction of the hypothesis test, i.e. if the test is left tailed, right tailed or two tailed.

It is also known as the research hypothesis and is denoted by H ₐ.

In this case we need to test whether the amount is paid after the grace period, on average, more than 4 times in 2018.

The hypothesis can be defined as follows:

H₀: μ = 4 vs. H ₐ: μ > 4

4 0

3 years ago

Review questions

a_sh-v [17]

Answer:

slope: -3/4 y-intercept: 3 equation: y=(-3/4)x+3

6 0

3 years ago

(- 1, 2) and (9, - 3)

slava [35]

9/5

the distance is 9 over, and 5 up.

5 0

3 years ago

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Answer if you know

Arlecino [84]

I've attached a plot of one such cross-section (orange) over the region in the x-y plane (blue), including the bounding curves (red). (I've set $y=1.25$ for this example.)

The length of each cross section (the side lying in the base) has length determined by the horizontal distance $x$ between the y-axis $x=0$ and the curve $y=\sqrt x$ . In terms of $y$ , this distance is $x=y^2$ . The height of each cross section is twice the value of $y$ , so the area of each rectangular cross section should be $2y^3$ .

This means the volume would be given by the integral

$\displaystyle\int_0^22y^3\,\mathrm dy$

8 0

3 years ago