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Allisa [31]
3 years ago
10

PLEASE HELP!! 48 POINTS!!

Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0
The exact number is 121.966019, so if you round to the nearest whole number, the answer is 122.
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A. Find the slope of the line that passes through the points (2,-5) and (-2,3).
r-ruslan [8.4K]

PART A:

Solve for the slope by solving change in y over change in x. We have (3-(-5)/(-2-2) = 8/-4=-2

PART B:

Change in to y=mx+b: -5y = -2x-10. Divide all terms by -5: y = 2/5x + 2. The slope is 2/5 and the y-intercept is 2.

PART C:

Remembering from part a that m=change in y/change in x, we have the equation: -4=1-(-9)/0-x. If we simplify, we have -4=10/0-x. If we multiply both sides from 1/10 we have: -2/5 = -x. So, x = 2/5.

PART D:

We can use point-slope form first:

y-5=-7(x+1). Then we solve the equation! y-5 = -7x-7. After adding 5 to both sides, we have the equation: y=-7x-2.

8 0
2 years ago
what number must be subtracted from both the numerator and denominator of 5/9 to obtain a fraction equal to 3/8
RideAnS [48]

Answer:

67 / 72

Step-by-step explanation:

3/8 + 5/9 = 27/72 + 40/72 = 67/72

3 0
2 years ago
A group of adults plus one child attend a movie at AMC. Tickets cost $9 for adults and $6 for children. The total cost for the m
Dominik [7]

Answer:

<em>8 adults</em>

Step-by-step explanation:

1.) $78 - $6 = $72

2.) $72/$9 = 8

4 0
2 years ago
HELP ASAP AND GETS SOME POINTS AND BRAINLEST!!!!
guajiro [1.7K]

Answer:

9x² + 28x - 32

Step-by-step explanation:

Given

(9x - 8)(x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

9x(x + 4) - 8(x + 4) ← distribute both parenthesis

= 9x² + 36x - 8x - 32 ← collect like terms

= 9x² + 28x - 32

4 0
3 years ago
Read 2 more answers
U will see and plz help worth 34 points
Masja [62]

Answer: 80

Step-by-step explanation:

First you split the shape into simple parts, and think about the measurements when you do so. Although you can't see my work, the way I split it is a rectangle that measures 8 by 4, and a rectangle that measures 8 by 6. You find the answer to these separately (32 and 48) and add them together (80).

4 0
2 years ago
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