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andreyandreev [35.5K]
2 years ago
14

PLEASE HELP!! You need to factor by grouping. Please explain the steps!

Mathematics
1 answer:
inysia [295]2 years ago
5 0

Answer:

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

Step-by-step explanation:

1) Factor out GCF

3(7k^3-28k^2+5k-20)

2)Split into two

3) Factor

3*7k^2(k-4)+5(k-4)

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

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On Monday, Amanda runs 1 1/6 miles, and on Tuesday, she runs 2 1/2miles. How far did she run on Monday and Tuesday combined?
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Answer:

3 2/3 miles

Step-by-step explanation:

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2 years ago
Solve 6k + 9 &gt; k – 1.<br><br> k &gt; -3<br><br> k &gt; -5<br><br> k &gt; -4<br><br> k &gt; -2
Pavel [41]

6k + 9 > k - 1 \\ 5k >  - 10 \\ k >  - 2
6 0
2 years ago
Round 392 to the nearest ten
Bezzdna [24]
Nearest 10 is according to the last digit.
if the digit is >5, it +1 to the tenth digit. If it's <5, it will be reduced to 0.

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5 0
3 years ago
Read 2 more answers
What is the equation in point slope form of the line that passes the points (2,-3) and(-5,8)
Grace [21]

Answer:

y+3=-11/7(x-2)

Step-by-step explanation:

y-y1=m(x-x1)

m=(y2-y1)/(x2-x1)

m=(8-(-3))/(-5-2)

m=(8+3)/(-7)

m=11/-7

m=-11/7

y-(-3)=-11/7(x-2)

y+3=-11/7(x-2)

4 0
2 years ago
Can someone please help me ASAP
maxonik [38]

mean

=(0.9+0.5+0.3+1.1)/4

=2.8/4

=0.7

6 0
3 years ago
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