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Vladimir [108]
4 years ago
15

-49x^2 +16 factor completely

Mathematics
2 answers:
zmey [24]4 years ago
8 0
(-7x+4)(7x+4)
-49x^2-28x+28x+16
rosijanka [135]4 years ago
3 0
Recognize the difference of 2 perfect squares

remember
a²-b²=(a-b)(a+b)
so

we can rearange them to look like this:
16-49x²
then show the squares
(4)²-(7x)²
then factor
(4-7x)(4+7x)
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Answer:

Step-by-step explanation:

8 0
3 years ago
1.5 units
scoray [572]

Answer:

3 units

Step-by-step explanation:

There are 3 squares between them.

3 0
3 years ago
A19 = -58, a21 = -164
Marrrta [24]
I took a19=-58 divide it by 19 both side i get a = -58÷19 (note; you can never have a neg. # on the top bring the neg. down to the bottom and divide) now its 58÷-19= -3.05 or -3 (1÷19) so a = -3(1/19) do the same to the other now. answer is a=-7 (17/21)
3 0
3 years ago
Michaela is making memory boxes. She wants to cover the boxes with sheets of decorative paper on all sides before filling them.
ruslelena [56]

Answer:

area = 5220 in²

Step-by-step explanation:

It's a little difficult to ensure accuracy without a diagram of the net, but from what you have said, the net appears to comprise of:

  • 2 rectangles: 35 x 24
  • 2 rectangles: 24 x 30
  • 2 rectangles: 35 x 30

Therefore, the total area of the net is:

⇒ area = 2(35 x 24) + 2(24 x 30) + 2(35 x 30)

⇒ area = 5220 in²

7 0
3 years ago
Agent Hunt transferred classified files from the CIA mainframe onto his flash drive. The drive had some files on it before the t
topjm [15]

Answer:   The drive was 24.32% full when the transfer began.

 

Step-by-step explanation:

Given: The rate of transferring file = 4.44 megabytes per second.

After 32 seconds, the amount of data on the drive = 384 megabytes  

The amount of transferred data = 32\times4.4=140.8 megabytes  

Therefore, the amount of data in the drive at the beginning is given by :-

\text{Beginning amount=Amount after 32 seconds -Amount transferred}\\\\\Rightarrrow\ \text{Beginning amount=}384-140.8=243.2

The drive had a maximum capacity of 1000 megabytes.

\frac{243.2}{1000}\times100=24.32\%

Hence, the drive was 24.32% full when the transfer began.

4 0
3 years ago
Read 2 more answers
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