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Ket [755]
3 years ago
7

Which expression is equivalent to (7x^2-4)(5x+7)

Mathematics
2 answers:
zepelin [54]3 years ago
8 0

Expand to get 35x^3+49x^2-20x-28


Nadusha1986 [10]3 years ago
5 0

Answer:

3x(3x + 2)

Step-by-step explanation:


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4) There are 4,200 beads in a box. There are 6 bags of beads in each box. If each bag has the same number of beads, how many bea
Helga [31]

Answer:

700 beads are in each bag.

Step-by-step explanation:

4 0
3 years ago
A number Q has a remainder of 3 when divided by 5 and also has a remainder of 4 when divided by 8. What is the smallest value Q
coldgirl [10]
5555666689919374747373
6 0
3 years ago
What is the average rate of change for 5/6 and 15/14
andreev551 [17]

Answer:

Average rate of change is <u>0.80.</u>

Step-by-step explanation:

Given:

The two points given are (5, 6) and (15, 14).

Average rate of change is the ratio of the overall change in 'y' and overall change in 'x'. If the overall change in 'y' is positive with 'x', then average rate of change is also positive and vice-versa.

The average rate of change for two points (x_1,y_1)\ and\ (x_2,y_2) is given as:

R=\frac{y_2-y_1}{x_2-x_1}

Plug in x_1=5,x_2=15,y_1=6,y_2=14 and solve for 'R'. This gives,

R= \frac{14-6}{15-5}\\\\R=\frac{8}{10}\\\\R=0.80

Therefore, the average rate of change for the points (5, 6) and (15, 14) is 0.80.

5 0
4 years ago
I need help on this. I've no idea about this. Please help me...​
Mashcka [7]

Answer:

Answers are below.

Step-by-step explanation:

Hope this helps:)

4 0
2 years ago
-(x + 2) - 2x = -2( x + 1)
Nikitich [7]
-(x+2)-2x=-2(x+1)\\\\-x-2-2x=-2x-2\\\\-3x-2=-2x-2\ \ \ \ \ \ |add\ 2\ to\ both\ sides\\\\-3x=-2x\ \ \ \ \ \ \ \ |add\ 2x\ to\ both\ sides\\\\-x=0\\\\\boxed{x=0}
8 0
3 years ago
Read 2 more answers
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