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3 years ago

Help! i will give brainliest and 10 points!!! i need the answer FAST!!!!!!!

Mathematics

1 answer:

Nikitich [7]3 years ago

5 0

Answeits only 5 points

Step-by-step explanation:

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What are the slope and the y-intercept of the line of best fit on this scatter plot?

romanna [79]

Answer:

A. The y-intercept is 8 and the slope is $-\frac{4}{3}$ .

Step-by-step explanation:

We have been given graph of line of best fit. We are asked to find the y-intercept and slope of our given line.

We know that y-intercept of a graph is the point, where line intersects y-axis. upon looking at our given graph, we can see that our line touches y-axis at point (0,8), therefore, y-intercept is 8.

Let us find slope of our given line using points $(0,8)\text{ and }(6,0)$ as:

$m=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{0-8}{6-0}$

$m=\frac{-8}{6}$

$m=-\frac{4}{3}$

Therefore, the slope of our given line is $-\frac{4}{3}$ and option A is the correct choice.

8 0

3 years ago

Read 2 more answers

What are the solutions to 16x^2-12x=54? Select all the apply.

lesya692 [45]

Answer:

-3/2 or 9/4

Step-by-step explanation:

16x^2 - 12x = 54

Now, we take 54 to the left side. It leads the right side to become "0". As 54 is a positive, it will negative as we change the side.

16x^2 - 12x - 54 = 0

Dividing both the sides by 2, we get,

8x^2 - 6x - 27 = 0

Now, we use factorization method,

8x^2 + 12x - 18x - 27 = 0

or, 4x (2x + 3) - 9 (2x + 3) = 0

or, (2x + 3) (4x - 9) = 0

Now, 2x + 3 = 0; or, 4x - 9 = 0

2x = - 3; or, 4x = 9 (changing the sides)

or, x = - (3÷2); or, x = (9÷4)

Therefore, the solution set for x is either - 3/2 or 9/4

4 0

4 years ago

A dog is tied to a leash on a tree and the leash is 10 meters long. There is a bone 15 meters away but the dog easily gets the b

Alex17521 [72]

Answer:

One way the dog can easily reach the bone is given by the relationship between the dog, the tree, and the bone

The dog can easily reach the bone when the tree is between the the dog and the bone, and the dog was more than 5 meters behind the tree

Therefore the distance the dog can reach in the direction of the bone from its position behind the tree is more than 15 meters and the dog can easily get the bone while the leash is not harmed

Step-by-step explanation:

3 0

3 years ago

12.09 rounded to the first decimal place

bulgar [2K]

12.0 is the answer I think

4 0

3 years ago

A telescope costs $126 with a 30% discount. What was the original price?

Juli2301 [7.4K]

Answer:

$180

Step-by-step explanation:

Since the cost of the telescope with the 30% discount is $126 then $126 is 70% of the original price. Remember 100-30=70. To find the original price set up a proportion with these values:

$\frac{126}{x}=\frac{70}{100}$

Solve for the original price by cross multiplying numerator with denominator.

x(70) = 126(100)

70x = 12600

x= $180

3 0

4 years ago