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Vlad1618 [11]
2 years ago
7

Find the distance (7,-8) and (0,2)

Mathematics
1 answer:
Kobotan [32]2 years ago
7 0

Answer:

d = √149 = 12.2

Step-by-step explanation:

Distance between 2 coordinates: d = √[(x2 − x1)^2 + (y2 - y1)^2]

d = √[(0 - 7)^2 + (2 - -8)^2]

d = √[(-7)^2 + (10)^2]

d = √[49 + 100]

d = √149 = 12.2

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ranslate the sentence into an equation using n as the unknown number. Then solve the equation for n. Two times a number increase
joja [24]
Hi there!

Let's break this down:
Two times a number = 2n
Increased by 5 = + 5
is 15 - = 15

Total equation:
2n + 5 = 15

Solving:
2n + 5 = 15
2n = 10
n = 5

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
4 0
3 years ago
which equation best represents the line in the graph? help pleaseeee ! right answers only i needa pass
ankoles [38]

Answer:

Using the coordinates (0,-2) and (-1,1) we can form and equation which is y=-3x-2

6 0
3 years ago
Please help guys!<br> Find the zeros of the quadratic equation by factoring.<br><br> x^2+4x-5=0
mr_godi [17]

Answer:

x = -5, 1

Step-by-step explanation:

To factor an equation, break the polynomial into two binomials which multiply to make it. Find two numbers that multiply to C and add to B from ax^2 + bx + c.

-1 and 5 multiply to -5 and add to 4.

x^2+4x-5 = (x+5)(x-1)

The zeros are the factors set equal to 0 and solved.

(x+5) = 0

x=-5

(x-1) = 0

x=1

8 0
3 years ago
our friend claims that his commute time to work is less than his commute time returning home on the same day. suppose that data
Rzqust [24]

Using a t-distribution calculator, the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

<h3>How to find the p-value of the t-distribution?</h3>

To find the p-value of the t-distribution, three information, which are the inputs on the calculator are needed:

  • The test statistic.
  • The number of degrees of freedom.
  • The tail of the test.

In this problem, we have that:

  • The test statistic is of t = -1.788.
  • The number of degrees of freedom is of 10.
  • We are testing if the mean is less than a value, hence we have a left-tailed test.

Hence, using a calculator, it is found that the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

More can be learned about the t-distribution at brainly.com/question/13873630

#SPJ1

6 0
1 year ago
HELP ME WITH THIS (a+5)(b-3)
jonny [76]

Answer:

The answer is ab-3a+5b-15

Step-by-step explanation:

apply de disruptive property by multiplying each term a+5by each term b-3

Hope this helps :)

7 0
3 years ago
Read 2 more answers
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