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katen-ka-za [31]
3 years ago
7

*forgets how to do this*

Mathematics
2 answers:
hammer [34]3 years ago
8 0

Answer:

-12

Step-by-step explanation:

-8-(-12= -8+12

well, 12-8=4, so -8+12=4

Aleksandr-060686 [28]3 years ago
5 0

Answer:

4

Step-by-step explanation:

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Given the infirmation in the diagram, which theorem best justifies why lines j and k must be parallel
Karo-lina-s [1.5K]

Answer:

Alternate Exterior Angles theorem

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The axis of the sphere below is 16 units in length. What is the surface area of the sphere?.
Nataly_w [17]
There are enough information's already given in the question. Based on those information's that answer can be easily deduced.
Radius of the sphere = 8 units
Then
Surface area of the sphere = 4 *pi * r^2
                                            = 4 * pi * (8)^2
                                            = 4 * pi * 64
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alina1380 [7]

8/15

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5 0
3 years ago
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(-3x)-7+2x+9=5 what does X equal to
yKpoI14uk [10]

Answer:

Step-by-step explanation:

-3x -7 +2x + 9 = 5

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8 0
3 years ago
Ab and bc form a right angle at point B. if a= (-3,-1) and B= (4,4) what is the equation of BC?
Vesnalui [34]

Answer:

Option C -7x-5y=-48

Step-by-step explanation:

step 1

Find the slope of AB

we have

A(-3,-1) and B(4,4)

The slope m is equal to

m=(4+1)/(4+3)

m=5/7

step 2

Find the slope of BC

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

so

m1*m2=-1

we have

m1=5/7

substitute

5/7*m2=-1

m2=-7/5

step 3

Find the equation of the line into slope point form

y-y1=m(x-x1)

we have

m=-7/5

B(4,4)

substitute

y-4=-(7/5)(x-4)

Multiply by 5 both sides

5y-20=-7x+28

7x+5y=28+20

7x+5y=48

Multiply by -1 both sides

-7x-5y=-48

3 0
3 years ago
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