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aliina [53]
3 years ago
13

Choose the correct simplification of the expression (−2x + 4y)(3x − 7y).

Mathematics
1 answer:
Rudik [331]3 years ago
3 0
-2x • 3x = -6x2 (the 2 is an exponent)
4y • -7y = -28y2 (the 2 is an exponent)
-2x • -7y = 14xy
4y • 3x = 12xy
14xy + 12xy = 26xy

—> -6x2(expo) - 28y2(expo) + 26xy

Check the answer again just to be sure, it’s been a while since I’ve had algebra!
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Write the equation of the line that has a slope of four and passes through the point 6,5
Rina8888 [55]

Answer:

4x-y=19, y=4x-19

Step-by-step explanation:

I learned a really quick way to do these in geometry.

Let's use standard form or ax+by=c.

Slope of 4:  4x - y = c.

Passes through point 6,5.

4(6) - 5 = c

c= 24-5

c=19

4x-y=19

y=4x-19

4 0
3 years ago
If the circumference of the base=126 cm and h=10 cm, find the volume
marshall27 [118]
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8 0
3 years ago
Need answer to finish test
PilotLPTM [1.2K]

Answer:

D 30 but im not sure i would go with D tho

Step-by-step explanation:

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7 0
3 years ago
Monica's college runs on a trimester schedule, so she receives a bill 3 times a year for tuition. Each trimeste
BigorU [14]

Answer:

total cost for Samantha to get her degree = $5,128.2

Step-by-step explanation:

Number of trimesters per year = 3

Number of years = 4

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total cost for Samantha to get her degree = total cost of tuition + total cost of books

total cost for Samantha to get her degree = 28.2 + 5,100

total cost for Samantha to get her degree = $5,128.2

7 0
3 years ago
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pickupchik [31]
42 because there is something to the equation. Where is will most likely make u fail so don’t take my answer because u will fail
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