3 years ago

70 70 BC_ AC Choose the relationship symbol that makes the statement true.

Mathematics

2 answers:

aliina [53]3 years ago

7 0

the symbol that makes this statement true is =

charle [14.2K]3 years ago

4 0

= because the angles are the same

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If a car travels 180 km on 12 liters of gas, how many km per liter does the car get? Express in simplest form.

lora16 [44]

Answer:

<u>5 kilo-meters per liter of gas</u>

Step-by-step explanation:

180 divided by 12 would be 180 / 12 = 5 km per liter

<em>(P.S., pls mark me brainliest, and have a nice day)</em>

6 0

3 years ago

In a sample of 41 temperature readings taken from the freezer of a restaurant, the mean is 29.7 degrees and the population stand

yKpoI14uk [10]

Answer: $=(29.1596\text{ degrees},\ 30.2404\text{ degrees})$

Step-by-step explanation:

Given: Sample size: n = 41

Sample mean $\overline{x}= 29.7$ degrees

Population standard deviation $\sigma=2.7$ degrees

Confidence level (c) = 80% =0.80

Significance level (a) = 1- c = 1-0.80 = 0.20

z-score for 80% confidence level : z = 1.2816 [from z-table]

Confidence level for population mean :-

$\overline{x}\pm z\dfrac{\sigma}{\sqrt{n}}$

$=29.7\pm ( 1.2816)\dfrac{2.7}{\sqrt{41}}$

$=29.7\pm ( 1.2816)\dfrac{2.7}{6.403124}$

$=29.7\pm ( 1.2816)(0.42167)$

$=29.7\pm 0.5404$

$=(29.7-0.5404,\ 29.7+0.5404)$

$=(29.1596,\ 30.2404)$

Hence, 80% confidence interval for the temperatures in the freezer $=(29.1596\text{ degrees},\ 30.2404\text{ degrees})$

7 0

2 years ago

Please help . I’ll mark you as brainliest if correct

il63 [147K]

Answer:

30 m

Step-by-step explanation:

51-21=30

<h2><em><u>PLEASE VOTE BRAINLIEST GIVE THANKS</u></em></h2>

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3 years ago

Julie is drawing a map of the town. She knows that City Hall is 3 miles

Ainat [17]

1.5 inches should be right

8 0

3 years ago

If y varies directly as x, find the constant of variation if y= 34 when x= 2

bearhunter [10]

The answer is C

y=kx. where k is a constant
sub y=34,x=2
2k=34
k=17

7 0

3 years ago