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lakkis [162]
2 years ago
6

What does (4x - y) + (-10 + y) equal if x = 3 and y = 4?

Mathematics
2 answers:
Blababa [14]2 years ago
6 0

(4X3-4) + (-10+4)=

12-4=8

-10+4 = -6

8 + -6 = 2

atroni [7]2 years ago
4 0
(4x-y)
4(3)-4 = 8

(-10+y)
-10+4 = -6

8 + -6 = 2
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Keith left his house, rode his bike 3 miles along one road, took a 90 degree turn and rode 3 miles to the local swimming pool. I
11Alexandr11 [23.1K]

Answer:

1.8 miles

Step-by-step explanation:

For this case we can model the problem as a rectangle triangle.

 We know:

 Length of the sides of the triangle

 We want to know:

 Length of the hypotenuse

 Using the Pythagorean theorem we have:

 d=\sqrt{3^{2} +3^{2} }\\d = \sqrt{2(3^2)} \\d = 3\sqrt{2} \\d = 4.2 miles

 Then, the distance that he would have saved if he travels directly is:

 3 + 3 - 4.2 = 1.8 miles

 Answer:

 he would have saved:

 1.8 miles

3 0
3 years ago
Read 2 more answers
17.
Hitman42 [59]
<h3>Solution:</h3>

Using formula (a-b)^2 = a^2-2ab+b^2

4x^{2}  - 12x + k \\  =  > (2x) ^{2}  - 2(2x)(3) +  {3}^{2}  \\  \\  =  >  {(2x)}^{2}  - 2(2x)(3) + 9

<h3>Answer:</h3>

k = 9

8 0
2 years ago
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What is the rate of change in y per unit change in x for the function 30x+5y=15
ad-work [718]

Step-by-step explanation:

To find the answer you have to put it into y=mx+b format.

This means that it will be 5y=-30x+15

So it will simplify to y=-6x+3

This means that:

If y=2

You substitute then…

2=-6x+3

So x would equal 1/6.

6 0
3 years ago
-28 + 5b = 4 (6b + 9) = There are no options i need it now
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Answer:

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3 years ago
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What is the equation of the line that passes through the points (-7,-7) and (-7,4)
musickatia [10]

Answer:

Step-by-step explanation:

The equation of a line

y = mx + c

y - intercept point y

m - slope of the line

x - intercept point x.

c - intercept of the line

Step 1: find the slope

m = y2 - y1 / x2 - x1

Given two points

( -7 , -7) ( -7 , 4)

x1 = -7

y1 = -7

x2 = -7

y2 = 4

Insert the values into the equation

m = 4 - (-7) / -7 -(-7)

m = 4 + 7 / -7 + 7

m = 11/ 0

Step 2: sub any of the two points given into the equation

y= mx + c

y = 11/0x + c

(-7 ,4 )

x = -7

y = 4

4 = 11/0(-7) + c

4 = -77/0 +c

-77/0 is math error which means that the points are not correct

4 0
3 years ago
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