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3 years ago

7

Omar has three t shirts: one red, one green and one yellow. He has two pairs of shorts one black and red. Use a tree diagram to

answer the following questions
( questions will be in the comments)

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

There is no diagram

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Six less than the product of 3 and a number is 12

tia_tia [17]

Answer: x*3 -6=12
Explanation: I assume you wanted that put into an equation

6 0

2 years ago

Which of the following shows the polynomial below written in descending<br> order?

Vladimir79 [104]

Answer:

A. 4x¹² + 9x⁷ + 3x³ -x

Step-by-step explanation:

Hi!

<em>==================================================================</em>

To write a polynomial in descending order, we write the terms with higher degrees, or exponents, first.

3x³ + 9x⁷ -x + 4x¹²

4x¹² has the highest degree, so it is written as the first term.

⇒4x¹²

9x⁷ has the next highest degree, so it is written next.

⇒4x¹² + 9x⁷

3x³ has the next highest degree, so it is written next.

⇒4x¹² + 9x⁷ + 3x³

-x has the lowest degree, so it is written last.

⇒4x¹² + 9x⁷ + 3x³ -x

<u>4x¹² + 9x⁷ + 3x³ -x</u>

<em>==================================================================</em>

<em>Hope I Helped, Feel free to ask any questions to clarify :)</em>

<em>Have a great day!</em>

<em> -Aadi x</em>

8 0

2 years ago

Write an equation in slope-intercept form for a line that passes through the given pair of points. (-6,5), (-9,0)

11111nata11111 [884]

Slope intercept form is y=mx+b because m=slope and b=y-intercept hence "slope intercept form"...

m=deltay/deltax=(0-5)/(-9--6)=-5/-3=5/3 so far we have now:

y=5x/3 +b, using any point, I'll use (-9,0) we can now solve for b or the y-intercept...

0=-9(5)/3 +b

0=-15+b, so b=15 and our line is:

y=5x/3 + 15 or more neatly

y=(5x+45)/3

4 0

2 years ago

Can you help me with this question please

NeTakaya

Answer:

A B C D

6.5

:/

3.25

=

1

:

0.5

8 0

2 years ago

Ber [7]

Answer:

(1) Variance = 4.5 and Standard deviation = 2.121.

(2) Variance = 4.5 and Standard deviation = 2.121.

(3) The effect on the measure of dispersion if each value is changed uniformly is that it remains unchanged.

Step-by-step explanation:

We are given with the following set of data below;

X $X-\bar X$ $(X-\bar X)^{2}$

5 5 - 8 = -3 9

5 5 - 8 = -3 9

8 8 - 8 = 0 0

10 10 - 8 = 2 4

10 10 - 8 = 2 4

10 10 - 8 = 2 4

9 9 - 8 = 1 1

9 9 - 8 = 1 1

<u> 6 </u> 6 - 8 = -2 <u> 4 </u>

Total <u> 72 </u> <u> 36 </u>

<u>Firstly, the mean of the above data is given by;</u>

Mean, $\bar X$ = $\frac{\sum X}{n}$

= $\frac{72}{9}$ = 8

(1)Now, the variance of the given data is;

Variance = $\frac{\sum (X-\bar X)^{2} }{n-1}$

= $\frac{36}{9-1}$ = 4.5

So, the standard deviation, (S.D.) = $\sqrt{\text{Variance}}$

= $\sqrt{4.5}$ = 2.12

(2) Now, each value is added by 2; so the new data set is given by;

X $X-\bar X$ $(X-\bar X)^{2}$

7 7 - 10 = -3 9

7 7 - 10 = -3 9

10 10 - 10 = 0 0

12 12 - 10 = 2 4

12 12 - 10 = 2 4

12 12 - 10 = 2 4

11 11 - 10 = 1 1

11 11 - 10 = 1 1

<u> 8 </u> 8 - 10 = -2 <u> 4 </u>

Total <u> 90 </u> <u> 36 </u>

<u>Firstly, the mean of the above data is given by;</u>

Mean, $\bar X$ = $\frac{\sum X}{n}$

= $\frac{90}{9}$ = 10

(1)Now, the variance of the given data is;

Variance = $\frac{\sum (X-\bar X)^{2} }{n-1}$

= $\frac{36}{9-1}$ = 4.5

So, the new standard deviation, (S.D.) = $\sqrt{\text{Variance}}$

= $\sqrt{4.5}$ = 2.12

(3) The effect on the measure of dispersion if each value is changed uniformly is that it remains unchanged as we see in the case of variance or standard deviation.

4 0

3 years ago