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3 years ago

What is the slope of the line with points (-1, 9) and (-3, -4)?

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

3 0

Answer:

C. $\frac{13}{2}$

Step-by-step explanation:

The formula to calculate slope is m= $\frac{y2-y1}{x2-x1}$

(-1, 9) is x1 and y1, (-3, -3) is x2 and y2 in this formula.

$\frac{-4 - 9}{-3 - -1}$ --- plug in values

$\frac{-13}{-2}$ --- simplify

$\frac{-13}{-2}$ = $\frac{13}{2}$

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4 + 6^2 + 9 ∙ 3 - 10

Korvikt [17]

4+6^2+9•3-10

PEMDAS
P=parentheses
E=exponent
m=multiplication
d=division
a=addition
s=subtraction

*no parentheses in this equation
*exponent = 6^2
6^2=36
4+36+9•3-10
*multiplication = 9•3
9•3=27
4+36+27-10
*addition=4+36+27
4+36+27=67
67-10
*subtraction=67-10
67=10=57

ANSWER=57

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3 years ago

For the equation W = -175t + 8,750, how much water is left after 6 hours?

barxatty [35]

Answer:

7,700

Step-by-step explanation:

-175 x 6 = -1,050

-1,050 + 8,750 = 7,700

5 0

3 years ago

Find the ratio in simplest form. 30:6 A. 1:5 B. 4:1 C. 5:1

nekit [7.7K]

ANSWER

The simplest form of the ratio
$30:6$
is

$5:1$

EXPLANATION

The ratio given to us is
$30:6$

We can divide each term in ratio by the same number.

To find the ratio in the simplest form we divide the terms in the ratio by their highest common factor, which is
$6.$

This implies that,

$30:6 = \frac{30}{6} : \frac{6}{6}$

We simplify this to obtain,

$30:6 = 5: 1$

The correct answer is C.

Alternatively,

$30:6 = \frac{30}{6}$

$30:6 = \frac{5}{1}$

This implies that,

$30:6 = 5:1$

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Answer:

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