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masya89 [10]
3 years ago
15

Find the distance between the points in a coordinate plane. Write your answer as a decimal.

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
6 0

The distance between the two points is <u>11.3 units.</u>

<em><u>Given</u></em>:

(-4,7.8) \\(-4,-3.5)

<em>Apply the </em><em>distance formula</em><em> given as:</em>

d = \sqrt{(y_2 - y_1)^2 + (x_2 - x_1)^2 }

Let,

(-4,7.8) = (x_1, y_1)\\(-4,-3.5) = (x_2, y_2)

<em>Plug in the values</em>

d = \sqrt{(-3.5 -7.8)^2 + (-4 -(-4))^2 }\\

d = \sqrt{(-11.3)^2 + (0)^2 }\\d = \sqrt{127.69} \\d = 11.3

Therefore, the distance between the two points in a coordinate plane is <u>11.3 units.</u>

Learn more about distance on a coordinate plane here:

brainly.com/question/11769555

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Jaleesa bought a movie online. She paid $19.00 plus tax. The sales tax was 9%. How much did she pay in sales tax?
boyakko [2]

Answer: she paid $1.71 in sales tax.  

Step-by-step explanation:

Find 9 percent of 19 to find the sale tax.

9% of 19 =

0.09 * 19 =  1.71  

This means she paid $1.71 in sales tax.

7 0
4 years ago
HELPPP!!! WILL MARK BRAINLIEST!!!
LenKa [72]

Answer:

Horizontal Asymptote:    y=2

Vertical Asymptote: x=3

Step-by-step explanation:

One way: Look at graph

Look at for a horizontal or vertical line that both lines don't touch.

Second Way:

When you look for vertical asymptotes, you set the denominator equal to zero and solve.

For example, the second question has a denominator of x-3.

x-3=0

x=3 (This is the vertical asymptote)

When you look for horizontal asymptote, you do long division.

For example, the first question f(x)=\frac{2x}{x-3}

The answer will be 2. 2 is the quotient. You only want quotient not remainder.

y=2.

6 0
3 years ago
If f (x) = -2x2 + 6, find f (-3).
Margarita [4]

Answer:

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Lily bought 20.24 pounds of grapefruit. The lightest grapefruit weighed 1.2 pounds. The heaviest grapefruit weighed 1.8 pounds.
dexar [7]

Given:

  • Lily bought 20.24 pounds of grapefruit.
  • The lightest grapefruit weighed 1.2 pounds.
  • The heaviest grapefruit weighed 1.8 pounds.

To Find:

An estimate of the number of grapefruits she bought.

Answer:

The best estimate is that Lily bought 13 grapefruits.

Step-by-step explanation:

Given that the lightest grapefruit weighed 1.2 pounds and the heaviest one weighed 1.8 pounds, we can take the mean or average of these two weights to estimate the weight of any of the grapefruits that she bought.

That is, we can say that each grapefruit must weigh something close to the average value.

The average can be found as

\frac{1.2+1.8}{2}=1.5

Thus, the average grapefruit from the bundle she bought must weigh around 1.5 pounds.

Now, given that the total weight of the grapefruit she bought is 20.24 pounds.

By the Unitary Method,

Weight of One Grapefruit = Total Weight of All Grapefruits ÷ Number of Grapefruits

So, number of grapefruits she bought = Total weight ÷ weight of one grapefruit

In other words,

number of grapefruit = \frac{20.24}{1.5}=13.49

Rounding off, we may say that Lily bought 13 grapefruits.

6 0
3 years ago
X=2y-1 <br> 3x+4y=11<br> Need help solving
tigry1 [53]

Answer: (-1/5, 2/5)


Step-by-step explanation:

See the photo for explanation and work.


6 0
4 years ago
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