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1 year ago

9

Question 1-3

1 answer:

Ann [662]1 year ago

3 0

Answer:

Step-by-step explanation:

The angles x+35 and x+ 40 should equal to the angle supplementary to angle A. You get the equation 2x+75=x+110. You will want to get x alone on one side. First you have to subtract 75 to the right to get 2x=x+35 and then subtract x to the left. You get x=35. Hope this helped!

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0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl

balandron [24]

Answer:

<em>The first step is to determine the average </em>

$x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475$

<em>The exercise says it’s a normal distribution: (n=8)</em>

$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

<em>According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained </em>

<em />

$t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\ t= -0,3860$

<em>The variable t has 7 grade to liberty, we calculate the p-value as: </em>

$2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108$

This value is very high, therefore the hypothesis is not rejected

7 0

3 years ago

Shopify has recently become Canada’s largest company. In the past 5 years, its stock price has climbed from $25 to $1000. If thi

iVinArrow [24]

1000-25= $975
975x5 = $4875 + $1000
= $5875.

3 0

2 years ago

Please help me with this

podryga [215]

Answer:

1 7

-120 -22

Step-by-step explanation:

you need to do top left top right bottom left bottom. in order to move x to the other side you need to subtract then divide by the negative.

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3 years ago

Dhruv jogs 8ft per second find the rate in miles

cricket20 [7]

Answer:

1/660th of a mile per second

Step-by-step explanation:

There are 5280 feet in a mile, and he is going 8 feet per second. You do 5280/8 and you get that he goes 1/660th of a mile every second.

7 0

3 years ago

circle terms and simplify each of the following expressions. a. 3+1 *4+(-7) b. 50=3(-10)=2(-20) c.4+(-50)*2 d. (4+(-170))(5+(-4)

zhannawk [14.2K]

A. 3+4-7

0

B. 50=-30=-40

50=/=-30=/=-20

No solution

C. 4+-100

-96

D. (-166)(1)

-166

I obviously cannot circle terms and sadly the attachments don’t work for me but each term like each section

8 0

3 years ago