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noname [10]
3 years ago
11

15 points!!! Thanks in advance.

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
6 0

your answer would be D.

4a (4a) + 4a (-5b) + 5b (4a) + 5b (-5b) it is simplified to    16a^2-25b^2

ra1l [238]3 years ago
4 0

To answer this, just combine like terms:

4A x 4A = 16A²

5B x (-5B) = -25B²

So, the answer is D) 16A² - 25A²!

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Write the equation of a line that is perpendicular to the given line and that passes through the given point.
Zigmanuir [339]
-3x-6y=17

-6y=3x+17

y=-x/2-17/6 so the slope of the line is -1/2

For another line to be perpendicular to this one the product of their slopes must equal -1

(-1/2)m=-1, m=2  so the perpendicular line will have a slope of 2...

y=2x+b, using point (6,3) we can solve for b...

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4 0
3 years ago
HELP ME WITH MATH PLS
Zanzabum

Answer: x = -\frac{10}{3} - \frac{2y}{3}

Step-by-step explanation:

-3x  -2y = 10      Get x alone by add 2y to both sides

      +2y    +2y

-3x = 10  + 2y    Divide both sides by -3

x = -10/3  - 2y/3

4 0
3 years ago
This equation will be in standard form if you subtract 6x2 from
katrin [286]

The answer to it is true

3 0
3 years ago
Read 2 more answers
Can someone please help me?
Nookie1986 [14]

Answer:

-3 • (x - 7)

Step  1  :

6x -  3 • (3x - 7)

Step 2:

21 - 3x  =   -3 • (x - 7)

Final result :

-3 • (x - 7)

8 0
3 years ago
Bob can do a job in 5 hours while Bill can do the same job in 8. How many hours would it take them, working together, to do this
kiruha [24]

Answer:

3 1/3 hr

Step-by-step explanation:

Bob's rate:: 1/5 job/hr

Bill's rate:: 1/8 job/hr

together rate:: 1/x job/hr

Equation:

rate + rate = together rate

1/5 + 1/8 = 1/x

8x + 5x = 40

13x = 40

x = 40/13 = 3 1/3 hr (time to do the job together)

5 0
3 years ago
Read 2 more answers
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