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2 years ago

7

(x + 3) (x-3) (x + 1) *

1 answer:

OLga [1]2 years ago

6 0

I believe the answer is x^3 + x^2 -9x -9

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A research study investigated differences between male and female students. Based on the study results, we can assume the popula

oksian1 [2.3K]

Answer: 0.0548

Step-by-step explanation:

Given, A research study investigated differences between male and female students. Based on the study results, we can assume the population mean and standard deviation for the GPA of male students are µ = 3.5 and σ = 0.05.

Let $\overline{X}$ represents the sample mean GPA for each student.

Then, the probability that the random sample of 100 male students has a mean GPA greater than 3.42:

$P(\overline{X}>3.42)=P(\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}>\dfrac{3.42-3.5}{\dfrac{0.5}{\sqrt{100}}})\\\\=P(Z>\dfrac{-0.08}{\dfrac{0.5}{10}})\ \ \ [Z=\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}]\\\\=P(Z>1.6)\\\\=1-P(Z$

hence, the required probability is 0.0548.

6 0

3 years ago

Mike and talia each make a scale drawing of the right side of their house. The scale of the side of the actual house to Mikes dr

Nutka1998 [239]

The width and height of Talia's Scale drawing are :

Width = 4.35 in
Height = 5.7 in

We can obtain the actual length of the side of the house from Mike's drawing :

Mike's scale = 3 ft to 1 in

Actual measurements:

Scale ratio × model drawing
Height, h = 9.5 × 3 = 28.5 feets
Width, w = 7.25 × 3 = 21.75 feets

Measurement of Talia's Scale drawing :

Talia's scale = 5 ft to 1 in
Actual measurement ÷ scale
Height = 28.5 ÷ 5 = 5.7 in
Width = 21.75 ÷ 5 = 4.35 in

The width and height of Talia's scale drawing are 5.7 and 4.35 respectively.

Learn more : brainly.com/question/17388747?referrer=searchResults

5 0

3 years ago

Solve: q + 24 = 24 A. q = 8 B. q = 2 C. q = 3 D. q = 0

vekshin1

Answer:

Hi! The answer to your question is D. q = 0

Step-by-step explanation:

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☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

3 0

3 years ago

The number of chairs on a ski lift is inversely proportional to the distance between them a lift has 70 chairs when there’s spac

zhannawk [14.2K]

Answer:

Space between 80 evenly spaced chairs = 21m

Step-by-step explanation:

So, according to the given statement, we have the following expression:

No. of chairs ∝ $\frac{1}{Distance.Between.chairs}$

70 chairs are 24m apart, so it can be written as:

70 ∝ $\frac{1}{24}$

For, 1 chair , we divide both sides by 70

$\frac{70}{70}$ ∝ $\frac{1}{24(70)}$

1 ∝ $\frac{1}{24 (70)}$ -----------------------(Equation 1)

<u>For 80 chairs:</u>

Multiply both sides of <em>Equation.1</em> by 80

80 ∝ $\frac{80}{24 (70)}$

80 ∝ $\frac{1}{21}$

So according to the above relation,

<em>80 evenly spaced chairs will have a space of </em><em>21 m</em><em> between them.</em>

7 0

3 years ago

If angle a = 11°, what does angle b equal?

N76 [4]

The answer is 169 because 180-11=169

6 0

3 years ago

Read 2 more answers