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3 years ago

How do i know if the "y = " is additon or subtraction?

Mathematics

2 answers:

Andre45 [30]3 years ago

6 0

Answer:

Step-by-step explanation:

tino4ka555 [31]3 years ago

3 0

2x+4y=16
2x+4(4)=16
2x+16=16
-16=-16=2x=0

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Evaluate -Z + 7.49 for Z = -7.1

luda_lava [24]

14.59

To solve, simply plug -7.1 into -Z. Since Z is negative in the equation, it will turn the Z that’s given to us into a negative. Since that Z is already negative, it will now become a positive since that’s what two negatives being multiplied make. This is what your problem will look like:

-(-7.1) + 7.49
7.1 + 7.49 = 14.59

3 0

2 years ago

Classify the angle pair using all names that apply

max2010maxim [7]

Answer:

Vertical

Step-by-step explanation:

8 0

1 year ago

Read 2 more answers

The heights of young women follow a Normal distribution with a mean u = 64.5 inches and standard deviation o = 2.5 inches. The p

mash [69]

Answer:

The heights of young women follow a Normal distribution with a mean u = 64.5 inches and standard deviation o = 2.5 inches. The probability that the mean height of an SRS of 10 young women exceeds 66.5 inches is ＿

normalcdf(66.5, 99999999, 64.5, 2.5)

1 - normalcdf(66.5, 99999999, 64.5, 0.7906)

normalcdf(-99999999, 66.5, 64.5, 2.5)

normalcdf(66.5, 99999999, 64.5, 0.7906)

normalcdf(66.5, 99999999, 0, 1)

1 - normalcdf(66.5, 99999999, 64.5, 2.5)

1 - normalcdf(66.5, 99999999, 0, 1)

normalcdf(--99999999, 66.5, 64.5, 0.7906)

plz need help number 1 2 3 4 5 are pic

8 0

2 years ago

Can someone help me please?

Finger [1]

Answer: x = 4

y = - 3

Step-by-step explanation:

The given system of simultaneous equations is expressed as

x-3y = 13 ------------------------1

2x+4y=-4--------------------------2

We would apply the method of substitution in solving the equations. From equation 1, we would make x to stand alone by adding 3y to the left hand side and the right hand side of the equation. It becomes

x - 3y + 3y = 13 + 3y

x = 13 + 3y

Substituting x = 13 + 3y into equation 2, it becomes

2(13 + 3y) + 4y = - 4

26 + 6y + 4y = - 4

26 + 10y = - 4

Subtracting 26 from the left hand side and the right hand side of the equation, it becomes

26 - 26 + 10y = - 4 - 26

10y = - 30

Dividing the left hand side and the right hand side of the equation by 10, it becomes

10y/10 = - 30/10

y = - 3

Substituting y = - 3 into x = 13 + 3y, it becomes

x = 13 + 3 × - 3

x = 13 - 9

x = 4

5 0

3 years ago

Y= -6-2/3 x<br> find the y-intercept and the slope of the line 2/3 is a fraction

Veseljchak [2.6K]

Answer:

slope = -2/3; y-intercept is point (0, -6)

Step-by-step explanation:

y = -6 - 2/3 x

y = -2/3 x - 6

y = mx + b

m = slope = -2/3

b = y-intercept = -6

Answer: slope = -2/3; y-intercept is point (0, -6)

5 0

1 year ago