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3 years ago

What is the slope of the line containing the points (-3,8) and (1,-4)

Mathematics

2 answers:

aksik [14]3 years ago

8 0

Answer:

-3

Hope This Helps!

Step-by-step explanation:

Y2-Y1/X2-X1

-4-8/1-(-3)

-12/4

-3/1

-3

arlik [135]3 years ago

5 0

Answer:

slope = - 3

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 8) and (x₂, y₂ ) = (1, - 4)

m = $\frac{-4-8}{1+3}$ = $\frac{-12}{4}$ = - 3

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Anna has leaned a ladder against the side of her house. If the ladder forms a 72º angle with the ground and rests against the ho

LuckyWell [14K]

Answer:

(A) 2 meter

Step-by-step explanation:

It is given that the ladder forms a 72º angle with the ground and rests against the house at a spot that is 6 meters high.

Let the measure of bottom of the ladder from the wall be x, then using the trigonometry, we have

$\frac{CB}{AB}=tan72^{\circ}$

$\frac{6}{x}=tan72^{\circ}$

$\frac{6}{x}=3.077$

$x=\frac{6}{3.077}$

$x=1.94$

$x$ ≈ $2m$

Thus, option A is correct.

6 0

3 years ago

Read 2 more answers

Jerome is going to draw a marble from the bag shown below, replace it, and then draw another marble. What is the probability tha

alexira [117]

Marbles in a bag: 3 green, 4 yellow, 5 blue, 8 pink.

Event A - get a green or yellow marble
Event B - get a pink marble

Events A and B are independent because we draw a marble from a bag with 20 marbles in both cases.
$P(A)= \frac{3+4}{3+4+5+8}= \frac{7}{20} 
\\P(B)= \frac{8}{3+4+5+8}= \frac{8}{20} = \frac{2}{5}$

Probability of combined events is
$P(A) \times P(B)=\frac{7}{20} \times \frac{2}{5} =\frac{7}{50}$

7 0

3 years ago

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Eric and Sarah both have lemonade stands. The graph below represents how many cups of lemonade Eric sells per day. The equation

Georgia [21]

Answer:

Eric

Step-by-step explanation:

At 5 days (the x axis), the y axis is 60 which is how much lemonade he sold.

sarah sold 10x or 10 x 5 days=50 cups.

‘Eric sold 60, Sarah sold 50

6 0

3 years ago

(x+2) / 9 = 5 <br><br>Quick question<br>First good answer, brainliest

Zigmanuir [339]

you basically want to get x on it's own to find out what it equals so,

multiply both sides by 9:

x+2 = 45

take away 2 from both sides:

x = 43

8 0

3 years ago

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A 2000 gallon fish aquarium can be filled by water flowing at a constant rate in 10 hours. When a decorativve rock is placed in

Elza [17]

Answer:

The volume of the rock is 13.368 cubic feet.

Step-by-step explanation:

The volume of the rock ( $V_{r}$ ), measured in gallons, is equal to the volume of the fish aquarium without the decorative rock ( $V'$ ) minus the volume of the fish aquarium with the decorative rock ( $V''$ ), both measured in gallons.