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3 years ago

Math test results are shown in the

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

8 0

Answer:

75%

Step-by-step explanation:

Each quartile is 25%; the answer asks for 70% and below, which is the first through third quartile.

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Estimate the line of best fit using two points on the line 100 90 80 70 (e, 80) 60 30 20 10 (2.20) 10 O A. y= 2x O B. y = 2x+10

nexus9112 [7]

Answer:

$y = 10x$

Step-by-step explanation:

Given

The attached plot

Required

The line of the best fit using $(8,80)$ and $(2,20)$

We have:

$(x_1,y_1) = (8,80)$

$(x_2,y_2) = (2,20)$

Calculate slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{20 - 80}{2- 8}$

$m = \frac{-60}{-6}$

$m = 10$

The equation is then calculated using:

$y = m(x - x_1) + y_1$

$y = 10(x - 8) + 80$

Expand

$y = 10x - 80 + 80$

$y = 10x$

5 0

3 years ago

Please help meeeeeee!!!!! ill give BRAINLIEST

monitta

Answer:

Step-by-step explanation:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. y=6 is a straight line perpendicular to the y-axis at point (0,6) , which means that the range is a set of one value {6} .

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3 years ago

4/5 of a number is 16. What is the number?

Zepler [3.9K]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

andy is scuba diving he starts at sea level and then descends 10 feet in 2 1/2 minutes. how would you represent andy’s descent a

UNO [17]

Answer:

4 feet/minute

explanation:

The rate of descent = (10 feet)/(2.5 mn) = 4 ft/min

6 0

3 years ago

A cafe has 6 indoor tables and 2 outdoor tables. Each indoor table has 8 chairs, and each outdoor table has 5 chairs. How many c

Makovka662 [10]

Indoor
8 chairs x 6 (for each table) =48 indoor chairs
Outdoor
5 chairs x 2 (for each table) =10 outdoor chairs
Final Answer
48 indoor chairs+10 outdoor chairs=58 chairs
58 chairs in total

8 0

2 years ago