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kompoz [17]
3 years ago
9

Select the correct answer​

Mathematics
2 answers:
pochemuha3 years ago
7 0

Answer:

B

Step-by-step explanation:

3x^2+5x-7x^2-28 then simplify

Strike441 [17]3 years ago
6 0

Answer:

-4x^2+5x-28

Step-by-step explanation:

3x^2 +5x - 7(x^2 +4)

Distribute the -7

3x^2+5x-7x^2-28

Combine like terms

-4x^2+5x-28

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Write the equation of the line shown in the graph. Please help.
jeka57 [31]

Answer:

y = 3

Step-by-step explanation:

The y-coordinate of all points on the graph is 3.

The equation is y = 3

3 0
3 years ago
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Below are the times (in days) it takes for a sample of 6 customers from Sarah's computer store to pay their invoices.
icang [17]

Answer:

8.80

Step-by-step explanation:

(S. D.)^2=summation(x-mean)^2/(n-1)

S. D.=sqrt(388/5)

S. D.=8.80

3 0
3 years ago
PLEASE HELP, 10TH GRADE GEOMETRY (REAL ANSWERS PLSSSS)
Zina [86]

Answer:

The correct option is 4.

Step-by-step explanation:

Let the line AB divided into 7 equal parts.

It is given that point P partitions the directed line segment from A to B in 3:4. It means 3 parts are before P and 4 partes are after P.

It is given that point Q partitions the directed line segment from A to B in 4:3. It means 4 parts are before Q and 3 partes are after Q.

It is given that point R partitions the directed line segment from A to B in2:5. It means 2 parts are before R and 5 partes are after R.

It is given that point S partitions the directed line segment from A to B in 5:2. It means 5 parts are before S and 2 partes are after S.

From the below figure we can say that point S is closest to point B.

It is also written as

A

A

Therefore option 4 is correct.

6 0
3 years ago
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A segment has endpoints (-9,-20) and (14,12). What is the midpoint of this segment
Darya [45]
((-9+14)/2, (-20+12)/2)
(5/2,-8/2)
(5/2,-4)
3 0
3 years ago
Factor the polynomial: 81b^2 - 64c^2
Lilit [14]

Answer:

160D^2

Step-by-step explanation:

5 0
3 years ago
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