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marin [14]
3 years ago
6

Can someone please solve this? a-3 Times a+7

Mathematics
2 answers:
Colt1911 [192]3 years ago
8 0
You have to combine like terms.
Answer: -2a+7 

3241004551 [841]3 years ago
5 0
The answer is <span><span>a^2</span>+<span>4a</span></span>−<span>21. use the foil technique. (First, Outer, Inner, Last)</span>
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Simplify the expression. Write the answer in scientific notation (7x10-6) (3x10-2​
shtirl [24]

Answer:

21 X 10^-8 is the correct answer

Step-by-step explanation:

(7X3) X 10^(-6-2)

21 X 10^ -8

4 0
3 years ago
Please help? <br> Find measure of angle C
Lelu [443]

Answer:

82

Step-by-step explanation:

Im pretty sure the answer is 82 as it's a striaght line and all you have to do is subtract 180-98

4 0
3 years ago
M(4,2) is the midpoint of RS. The coordinates of S are (6, 1). what are the coordinates of R?
nirvana33 [79]
Remark
You are using the midpoint formula. Instead of finding the midpoint, you are looking for one of the points, so you have to rearrange the formula a little bit.

Givens
Midpoint (4,2)
One endpoint (6,1)

Object
Find the other endpoint.

Formula
m(x,y) = (x1 + x2)/2, (y1 + y2)/2)

Solution
Find the x value
4 = (6 + x2)/2    Multiply both sides by 2
4*2 = 6 + x2      Subtract 6 from both sides.
8 - 6 = x2
x2 = 2

Find the y value
2 = (1 + y2)/2    Multiply by 2
4 = 1 + y2          Subtract 1 from both sides.
4 - 1 = y2  
y2 = 3

Conclusion
R(x,y) = (2,3)

8 0
3 years ago
A ______________ divides a segment or angle in half.
densk [106]

Answer:

bisector

Step-by-step explanation:

A <u>bisector</u> divides a segment or angle in half.

6 0
3 years ago
Read 2 more answers
Assume that y varies inversely with x. If y=12 when x=5, find y when x=3
NemiM [27]
Inversely variation means xy = c, where c is a constant

Since when y = 12 x = 5, then c = 12*5 = 60

So xy = 60

Now when x = 3, y = 60/3 = 20
7 0
3 years ago
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