3 years ago

Factor using ac-method, 15y+6y²-21= ________

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

3 0

$15y+6y^2-21=\\
6y^2+15y-21=\\
3(2y^2+5y-7)=\\
3(2y^2-2y+7y-7)=\\
3(2y(y-1)+7(y-1))=\\
3(2y+7)(y-1)
$

You might be interested in

Use the interactive to graph a line with a slope of zero and passing through the 0,4

Gwar [14]

Answer:

You need to draw a horizontal line that goes through the point (0,4).

Step-by-step explanation:

Slope of zero means it does not go up or down. It looks like this ↔, but stretched out to the two sides of the graph.

5 0

3 years ago

Which statement below is TRUE about |-2| and |-5|?

Lesechka [4]

Answer:

|-5| is greater than |-2|

Step-by-step explanation:

the absolute value of -5, is 5, which is greater than the absolute value of -2, which is 2. Have a wonderful rest of your day! I hope this helps!

8 0

2 years ago

Mrs. McDonnell is making 25 paper cones to fill

viktelen [127]

Answer:

(A)29 cubic inch

Step-by-step explanation:

Diameter of the Cone =4 Inches

Height of the Cone =7 Inches

Volume of a Cone $=\frac{1}{3}\pi r^2h$

First, we determine the radius, r.

Radius=Diameter/2=4/2=2 Inches

Therefore:

Volume of one paper cone $=\frac{1}{3}\pi *2^2*7$

=29.32 cubic inch

=29 cubic inch (to the nearest cubic inch.)

5 0

2 years ago

HELP HELP HELP HELP HELP!!!!

Nutka1998 [239]

Answer:

5)m=11/10

6)m=-17/2

7)m=18.13

8)m=-26/9

BTW The M is an EXAMPLE

Step-by-step explanation:

4 0

2 years ago

The falcons basketball team beat the tigers by 7 points in a game. The total points scored by both teams was 83. Write and solve

Blizzard [7]

Falcons = 45
Tigers = 38

83-7=76
76/2=38 (Tigers)
38+7=45 ( Falcons)

6 0

2 years ago