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seraphim [82]
3 years ago
15

The points (3,-2) and (7,r) lie on a line with the slope 3/4. Find the missing coordinate r.​

Mathematics
1 answer:
snow_lady [41]3 years ago
8 0

Answer:

the answer is 1

Step-by-step explanation:

X1=3 X2=7

Y1=-2 Y=r

M=y2-Y1/X2-X1

3/4=r-(-2)/7-3

3/4=r+2/4

Cross multiply

4(r+2)=4*3

4r+8=12

collect like terms

4r=12-8

4r=4

divide the by the co efficient of x

r=1

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Jenny thinks that the expression below is equal to x²-4. If you agree, show that she is correct. If you disagree, show that she
sergiy2304 [10]

Answer:

Jenny is wrong the correct answer is x²+ 4 - 4 x.

Step-by-step explanation:

Given that

(x-2)³∕x-2

(x-2)³∕(x-2) =(x-2) (x-2)²∕(x-2)

(x-2)³∕(x-2) = (x-2)²

As we know that

(a-b)² = a²+b² - 2 ab

So

(x-2)² = x²+ 2² - 2 ˣ 2 ˣ x =  x²+ 4 - 4 x

(x-2)² =  x²+ 4 - 4 x

It means that

(x-2)³∕(x-2) = (x-2)² =  x²+ 4 - 4 x

So Jenny is wrong the correct answer is x²+ 4 - 4 x.

8 0
2 years ago
Can someone please help me like I really need help this problem has to have more than one step to be solved I really need help a
kumpel [21]

Answer:

85°

Step-by-step explanation:

Please follow along with these directions on the attached picture so that this makes sense.  I have labeled the picture with the variables I used and the angles I figured out.

Let's start in the top left corner. Remember: triangles always have 180°, and straight lines always have 180°.

180-115 = 65

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180-95 = 85°

8 0
2 years ago
In a recent year, certain colleges and universities received about $268 million in aid. Ten years later, they received about $94
topjm [15]
D) 65% decrease. 

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And since the money is decreasing, it is a 65% decrease. 

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3 years ago
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ASAP I NEED HELP NOWW
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4 0
3 years ago
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Mass of 2kg potatoes on moon<br>​
DENIUS [597]

Answer:

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Step by step explanation:

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7 0
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