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qaws [65]
3 years ago
12

What expression is the factorization of x^2+10x+21

Mathematics
2 answers:
a_sh-v [17]3 years ago
8 0

Answer:

a

Step-by-step explanation:

FOIL

f-first

o-outer

i-inner

l-last

fiasKO [112]3 years ago
7 0

Answer:

(x+3)(x+7)

Step-by-step explanation:

3+7 = 10 (the middle number)

3(7) = 21 (the third number)

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What is the scientific notation of 7,000,000
creativ13 [48]
Your number would be 10 and the exponet would be 6
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3 years ago
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Which expression is equivalent to 1/2(2x-8)<br> A) 4x− 16<br> B) x− 4<br> C) 2x− 4<br> D) x− 8
inn [45]

Answer:

B) x - 4

Step-by-step explanation:

In this question, you have to simplify the expression to get your answer.

Solve:

1/2(2x - 8)

Use the distributive property.

1/2(2x) + 1/2(-8)

x + 1/2(-8)

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Your answer would be B) x - 4

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3 years ago
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the length of a rectangle is 9 centimeters more than the width. the area is 112 square centimeters. find the length and width of
NeX [460]
Here,
let width(b)be x then,
length (l)=9cm+x
area =112 sq cm
now,
area of rectangle=l*b
or, 112=(9+x)x
or, 112=9x+x^2
or, 0=x^2+9x-112
or, 0=x^2+(16-7)x-112
or, 0=x^2+16x-7x-112
or, 0=x(x+16)-7(x+16)
or, 0=(x-7)(x+16)
either,
0=x-7
or,7=x
x=7cm
Or,
0=x+16
or, -16=x
x= -16[impossible,as distance is never negative] so,
x=7cm
therefore,length = 7cm + 9 cm = 16cm and width = 7cm.
;)







8 0
3 years ago
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15) Tyler wants to ride the bumper cars 4 times and the Ferris wheel 8 times. It costs 6 tickets to ride the
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Answer:

Tyler needs 48 tickets.

Step-by-step explanation:

6*4= 24

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24*2=48

4 0
2 years ago
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Simora [160]

Answer: 10

Step-by-step explanation:

add 2.75 to 0

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3 years ago
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