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3 years ago

Slope between (2,5) (4,11)

Mathematics

1 answer:

lukranit [14]3 years ago

7 0

Step-by-step explanation:

$slope = \frac{11 - 5}{4 - 2} \\ = \frac{6}{2} \\ = 3$

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On the graph, trapezoid A has rotated 180 degrees about the origin. Compare the areas of the trapezoids. Justify you answer.

topjm [15]

D. Rigid transformations were applied therefore not changing any of the shapes values.

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4 years ago

Let f(x) = 2x + 2. Solve f-1(x) when x = 4.

lesya692 [45]

$f(x)=2x+2 \\\\ f(x)-1= (2*4+2)-1 \\\\ =8+2-1= \\\\ =10-1= \\\\=\boxed{9}$

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3 years ago

Read 2 more answers

In 1925, airplane engines were cooled with water. Water freezes at a temperature of 32º Fahrenheit. Average winter low temperatu

Snezhnost [94]

Answer:

From November to March, the temperature in Alaska is between 0°F/-18°C and -30°F/-35°C, which is very cold. May and September are both often the driest and the wettest months in Alaska's summer.

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3 years ago

Find two consecutive integers whose sum is -13

Lemur [1.5K]

Answer:

-6 and -7

Step-by-step explanation:

Set up an equation: x+x+1=-13 2x=-14 x=-7. Since it is negative, you go down 1. -6 and -7 hope this helps plz mark brainliest if correct

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3 years ago

A journalist wants to determine the average annual salary of CEOs in the S&P 1,500. He does not have time to survey all 1,50

Sloan [31]

Answer:

Atleast 315

Step-by-step explanation:

Given that a journalist wants to determine the average annual salary of CEOs in the S&P 1,500. To save time a sample is taken.

s = sample std dev = 449300

Sample size = n

Margin of error = 50000

Z critical = 1.96

Hence 1.96*std error = 50000

std error = 25510.20

Std deviation/sqrt n = 25510.20

Simplify to get

$\sqrt{n} =\frac{449300}{25510.20} =17.752\\n=315\\$

So sample size should be atleast 315

8 0

3 years ago