2 years ago

Y = 4x - 7 What is the y-intercept?

Mathematics

1 answer:

RideAnS [48]2 years ago

6 0

Answer:

(0,-7)

Step-by-step explanation:

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Write the sentence as an inequality and graph it; a number n is less than or equal to -7 or greater than 12.

DiKsa [7]

Answer:

n <_-7 > 12

Step-by-step explanation:

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3 years ago

An animal shelter spends $4.50 per day to care for each bird and $8.50 per day to care for each cat. Dominic noticed that the sh

Nimfa-mama [501]

Answer:

Step-by-step explanation:

4.5b + 8.5c = 175

b + c = 22.......b = 22 - c

4.5(22 - c) + 8.5c = 175

99 - 4.5c + 8.5c = 175

-4.5c + 8.5c = 175 - 99

4c = 76

c = 76/4

c = 19......there are 19 cats

b + c = 22

b + 19 = 22

b = 22 - 19

b = 3 <==== there are 3 birds

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3 years ago

Which of the following points is a vertex for the image produced by a dilation about the origin with a scale factor of 1/2?

MA_775_DIABLO [31]

Answer:

A (0,3)

Step-by-step explanation:

The given trapezoid has vertices:

(0,6), (7,12), (7,9) and (0,12).

We want to choose from the given options, a point that is a vertex for the image produced by a dilation about the origin with a scale factor of 1/2.

Note that the mapping for such a dilation is:

$(x,y)\to( \frac{1}{2} x, \frac{1}{2} y)$

This implies that:

$(0,6)\to(0,3)$

$(7,12)\to(3.5,6)$

$(7,9)\to(3.5,4.5)$

$(0,12)\to(0,6)$

Therefore correct choice is (0,3)

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3 years ago

The probability of choosing 2 green balls without replacement is 11/50 and the probability of choosing one green ball is 12/25.

seraphim [82]

The answer would be 10/75

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2 years ago

What is a mixed radical in simplest form? Use square root number 72.

puteri [66]

It is 8 because you would do 9x8=72

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2 years ago