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3 years ago

How do you do this? Please help, I’ve been staring at this for like 10 min :)

Mathematics

1 answer:

damaskus [11]3 years ago

3 0

Answer & Step-by-step explanation:

The formula is given in the middle. You are supposed to insert the value of x into this formula to find the value of y (like in the first given example):

$x=-2\\y=2(-2)+5\\y=-4+5\\y=1$

------

$x=-1\\y=2(-1)+5\\y=-2+5\\y=3$

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$x=0\\y=2(0)+5\\y=0+5\\y=5$

------

$x=1\\y=2(1)+5\\y=2+5\\y=7$

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$x=2\\y=2(2)+5\\y=4+5\\y=9$

:Done

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Five decreased by twice a number is same as five less than three times the number.

sergejj [24]

Answer: If you are suppose to write an algebraic expression it is: 5 - 2x = 3x - 5
If you are suppose to solve the answer is:
5-2x=3x-5
-2x=3x-10
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x=2

8 0

2 years ago

I need help plsss I will give u more points

lions [1.4K]

Answer:

The value of 0.9* 10² is D.90.
4*(12-8)+2³

4*4+2³
16+8
24

False : it is to add 16+8

b.

False : its 8.

c.

True.

d.

False : its 24.

3.

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7 0

2 years ago

WILL GIVE BRAINLIEST! Find the equation of a line that passes through (-5,-2) and the intersection of the lines x+3y=0 and 4x-4y

Verdich [7]

Answer:

y + 2 = -0.069(x-+5)

Step-by-step explanation:

SInce the two lines intersects, we will equate it

Multiply x + 3y = 0 by 4;

4x + 12y = 0

4x-4y-13 = 0,

Subtracts both

12y +4y + 13 = 0

16y = 13

y = 13/16

get x;

x + 3(13/16) = 0

x = -39/16

The point of intersection is (0.8, -2.4) and (-5,-2)

Get the equation;

m = y2-y1/x2-x1

m = -2+2.4/-5-0.8

m = 0.4/-5.8

m = -0.069

Get the equation;

y - y0 = m(x-x0)

y - (-2)= -0.069(x-(-5))

y + 2 = -0.069(x-+5)

6 0

3 years ago

Show work please. need asap.

Ulleksa [173]

Answer:

129 = QRX

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles

49+80 = QRX

129 = QRX

8 0

3 years ago

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What is the slope of a line that is perpendicular to the line y=8x+5

statuscvo [17]

Answer:

-1/8

Step-by-step explanation:

Perpendicular slopes are negative reciprocals

The slope of y=8x+5 is 8, because it is in slope intercept form: y=mx+b form, where m is the slope.

Negative:

8/1--> -8/1

Reciprocal:

Flip the numerator and denominator

-8/1--> -1/8

So, the perpendicular slope of 8 is -1/8

4 0

3 years ago

Read 2 more answers