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3 years ago

15

What is an equation of a line, in point slope form, that passes through (1, -7) and a slope of -2/3

2 answers:

Helen [10]3 years ago

8 0

Y = mx + b

Substitute x and y values with (1,-7)
And sub in slope -2/3 to find b value

-7 = -2/3(1) + b
-7 = -2/3 + b

Multiply both sides by denominator (3)

-21 = -2 + 3b

-19 = 3b

-19/3 = b

Plug into formula

Y = -2/3x + -19/3

maw [93]3 years ago

6 0

$y + 7 = - \frac{2}{3} (x - 1)$

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Please help asap. 55 points

atroni [7]

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3 years ago

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10) Find the measure of angle D. Hint: you must do two math problems to solve

NISA [10]

Answer:

Option A.) 43°

Step-by-step explanation:

Part 10)

step 1

Find the length of side EG

see the attached figure to better understand the problem

we know that

In the right triangle EGF

$cos(65^o)=\frac{EG}{EF}$ ----> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

$cos(65^o)=\frac{EG}{11}$

solve for EG

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step 2

Find the measure of angle D

In the right triangle DEG

$tan(D)=\frac{EG}{DG}$ ----> by TOA (opposite side divided by adjacent side)

substitute the given values

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3 years ago

HELP PLEASE!! Victoria and Jennifer walk at a different averagr speed. Victoris walks at an average speed of 1 1/5 miles in 1/2

Zanzabum

Answer:

Jennifer

4/15 mph

Step-by-step explanation:

First, we find the two speeds in miles per hour.

Victoria:

1 1/5 mile per 1/2 hour = (1 1/5 mile)/(1/2 hour) = 2 2/5 mph = 2.4 mph

Jennifer:

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2 2/3 mph > 2 2/5 mph, so Jennifer's speed is greater.

The difference in speeds in mph is:

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2 years ago

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(-8a^2 - 1)(3a^2 - 5)

natali 33 [55]

Answer:

13a² + 5

Step-by-step explanation:

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