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Elanso [62]
3 years ago
11

What is the distance from the point (0,-4) to point (4,4)?

Mathematics
2 answers:
dlinn [17]3 years ago
4 0

Answer: Distance is 8.9

Step-by-step explanation:

d = √((x2-x1)2 + (y2-y1)2)

(x2-x1) = (4 - 0) = 4

(y2-y1) = (4 -4) = 8

Add it all together

(4)2 + (8)2 = 16 + 64 = 80

Square 80

\sqrt{80} =4\sqrt{5} \\=8.9443

lapo4ka [179]3 years ago
4 0

Answer: d=8.9

Step-by-step explanation:

√80=8.9

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28 in 21 in., 20 in.<br> Is this a right triangle?
ankoles [38]

Answer:

No, it is not a right triangle.

Step-by-step explanation:

The simplest way to determine is testing out the numbers with Pythagorian theorem.

If it complies with the theorem, it is a right triangle.

let's assume c = 28, b = 21, and a = 20

the longest side is the hypotenuse so side c (28 in) will be the hypotenuse.

According to the Pythagorian theorem, the square of the length of hypotenuse must equal to the sum of squares of other two sides.

check:

c^2 = 28^2 = 784

a^2 + b^2 = 21^2 + 20^2 = 841

because c^2 is not equal to a^2 + b^2, the triangle is not a right triangle.

7 0
2 years ago
A data set contains information on the grams of fat and number of calories in 28 different fast foods. The correlation coefficie
k0ka [10]

Using a calculator, it is found that for the two-tailed test of significance, the p-value is of 0.9195.

The correlation coefficient is also called <u>Pearson's r-score</u>, and is used for two-tailed tests. To find the p-value, the information needed is:

  • The value of the Pearson's r-score, that is, the value of the correlation coefficients.
  • The sample size.

In this problem, we have that the correlation coefficient is of r = 0.02, with a sample size of n = 28.

  • Using it as the input for a r-score calculator, the p-value is of 0.9195.

A similar problem is given at brainly.com/question/13873630

6 0
2 years ago
11 Points Math Please help fast!!!
Vesnalui [34]

Answer:

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Step-by-step explanation:

8 0
2 years ago
241.78 divided by (-3.85)
koban [17]

Answer:

-62.8 is the answer .......................

3 0
2 years ago
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A rectangular flower garden in Samantha's backyard has 260 feet around its edge. The width of the garden is 60 feet.
OlgaM077 [116]

Answer:

100 - 20 = 80 Length Of the Garden

Step-by-step explanation:

So You Can do 20 Ft Minus 100 Because 100 is the Total so Heres a Graph To Show You

Total= 100 Ft

Width= 20

Length=?

Total - Width = Length

100 - 20 = 80 Length Of the Garden

4 0
2 years ago
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