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tigry1 [53]
2 years ago
13

3x^2+20x+12 pls show work ;-;

Mathematics
1 answer:
RoseWind [281]2 years ago
5 0

Answer:

3 {x}^{2}  + 20x + 12 \\ 3 {x}^{2}  + 18x + 2x + 12 \\ 3x(x + 6) + 2(x + 6) \\( 3x + 2)(x + 6)

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Reduce the ratio to its lowest form.<br> 42 : 49
Mariana [72]

Answer:

6:7

Step-by-step explanation:

divide both sides by 7...

5 0
3 years ago
Write the frost ten terms of a sequence whose first term is -10 and whose common difference is -2​
Temka [501]

Answer:

-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...

Step-by-step explanation:

we know that

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, called the common difference

The formula for an Arithmetic Sequence is equal to

a_n=a_1+(n-1)d

where

d is the common difference

n is the number of terms

a_1 is the first term of the sequence

In this problem we have

a_1=-10\\d=-2

substitute

a_n=-10+(n-1)(-2)

a_n=-10-2n+2

a_n=-2n-8

so

<u><em>Find the first ten terms</em></u>

a_1=-10

For n=2 ----> a_2=-2(2)-8=-12

For n=3 ----> a_3=-2(3)-8=-14

For n=4 ----> a_4=-2(4)-8=-16

For n=5 ----> a_5=-2(5)-8=-18

For n=6 ----> a_6=-2(6)-8=-20

For n=7 ----> a_7=-2(7)-8=-22

For n=8 ----> a_8=-2(8)-8=-24

For n=9 ----> a_9=-2(9)-8=-26

For n=10 ----> a_1_0=-2(10)-8=-28

The sequence is

-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...

5 0
3 years ago
What is the sum of all integers between 123 and 2021 which end in 7? Please walk me through it w/ work.
Savatey [412]

Answer:

it will be 35720 . I hope my answer is correct

6 0
3 years ago
Mr Thompson please answer. This is hw that is for mathematics Algebra.
ddd [48]

Answer:

question 6:

x^{2} + 9x + 14 and (x + 2) (x + 7)

question 7:

x^{2} - 7x + 10 and (x - 2)(x - 5)

question 8:

x^{2} - 9x + 20 and (x - 4)(x - 5)

question 9:

(x + 1) (x - 17)

x^{2} - 17x + 1x - 17

x^{2} - 16x - 17

question 10:

(x - 1) (x + 17)

x^{2} + 17x - 1x - 17

x^{2} + 16x - 17

6 0
3 years ago
This is a number system which uses a base of 10. The valid digits are 0 to 9.
Licemer1 [7]
I think it's 9 but I could be wrong
7 0
3 years ago
Read 2 more answers
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