3 years ago

Find the slope of the line and that passes through (7, 2) and (-7, 48)

Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

7 0

Answer:

-23/7

Step-by-step explanation:

y2 - y1 / x2 - x1

48 - 2 / -7 - 7

46 / -14

= -23/7

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Rani has 160 DVDs 35 % of her DVDs are thrillers . 2/5 of her DVDs are comedies . The rest of her DVDs are science fiction . How

Tamiku [17]

Answer: 40

Step-by-step explanation:

Number of DVDs = 160

Thrillers = 35%

Comedies = 2/5 = 40%

Science fiction = 100 - (35 + 40) = 100 - 75 = 25%

The number of science fiction DVDs that Rani has will be:

= 25% × 160

= 25/100 × 160

= 40

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3 years ago

Find the cartesian product Ax B of the following sets a) A = {x:x=1,2,3},b{y:y=3-x}

BabaBlast [244]

Answer:

Step-by-step explanation:

A=(1,2,3)

B=(0,1,2)

A×B=(1,2,3)×(0,1,2)

A×B=((0,1),(1,1),(1,2),(0,2),(1,2),(2,2),(0,3),(1,3),(2,3))

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2 years ago

In the United States, the distribution of a female's height has a mean of 64 inches with a standard deviation of 3 inches. How m

inessss [21]

Answer:

The standard deviations is $\frac{-5}{3}$

Step-by-step explanation:"

Given mean female height = 64 inches and standard devaiton = 3 inches and 69 inches tall is Sally.

We know the distance of a data point from:

Z = $\frac{64-69}{3}$ = $\frac{-5}{3}$

So the standard deviations is $\frac{-5}{3}$

8 0

3 years ago

Simplify radical -81

Solnce55 [7]

Step-by-step explanation:

-81

$\sqrt{ - 1} \: \times \sqrt{81}$

$\sqrt{ - 1} = i$

$i \times \sqrt{9 {}^{2} }$

$i \times 9$

$9i$

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3 years ago

Determine the slope of the line that passes through each pair of points. A (0,1) ,B (2,7)

valkas [14]

Your answer should be 3

Use this formula to solve slopes:

m = (y2 – y1) / (x2 – x1)

8 0

3 years ago