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2 years ago

What is the equation of the line that passes through the points (1, 1) and (7, -5)?

Mathematics

1 answer:

xxTIMURxx [149]2 years ago

6 0

Answer:

y = -1x+2

Step-by-step explanation:

(1,1)(7,-5)

y2-y1/x2-x1 = slope

-5-1/7-1 = -6/6= -1

y-y1 = slope(x-x1) // equation formula

y-1=-1(x-1)

y = -1x + 1 +1

y = -1x+2

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3 years ago

ACT mathematics score for a particular year are normally distributed with a mean of 28 and a standard deviation of 2.4 points

kompoz [17]

Answer:

a. 0.1587

b. 0.8849

c. 0.1814

Step-by-step explanation:

a. Given that $\mu=28, \ \ \sigma=2.4$

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$P(X>30.4)=1-P(X30.4)=1-P(z$

Hence, the probability of a score greater than 30.4 is 0.1587

b. Given that $\mu=28, \ \ \ \sigma=2.4$

The probability a randomly selected score is less than 32.8 is calculated as:

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3 0

3 years ago

Please help me immediately

s344n2d4d5 [400]

Step-by-step explanation:

$diameter \: = \sqrt{ { 24}^{2} + {7}^{2} } = 25$

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$shaded \: area = ( \frac{\pi}{4} \times {25}^{2} ) - ( \frac{1}{2} \times 7 \times 24)$

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4 0

3 years ago

What’s the value of x

adoni [48]

Answer:

Step-by-step explanation:

This is due to the rule that all shapes exterior angles add to 360.

Therefore 360 = 46 + 3x +62 + 4x + 47 + (180-83)

360 = 248 + 7x

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3 years ago

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I hope this helps. (^_^)

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3 years ago

Read 2 more answers