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Bond [772]
2 years ago
14

Simplify (2x + 1)(x - 7)

Mathematics
2 answers:
NikAS [45]2 years ago
4 0
2x squred -7 I think,lol
Katen [24]2 years ago
4 0

Maybe 2x squared - 13x - 7

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Hailey went to the market and bought 5 pounds of coffee that costs $2 a pound. She also purchased 2/3 pounds of lunch meat that
Firdavs [7]

Answer:

$16

Step-by-step explanation:

$2 x 5 = $10

1 pound = $9

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6 0
3 years ago
Which algebraic expression represents “the class was divided into four equal groups”?
Alex17521 [72]

The last answer, because the class is being divided into four groups. So the class number is not known, thus it is represented by “w” and divided by four.

4 0
3 years ago
Noel and Casey both start at the same place. Noel walks due south and Casey walks due east. After some time has passed, Noel is
Dovator [93]

Answer:

2.04 miles per hour

Step-by-step explanation:

Given

Noel

n_1 =6miles

r_1 = 2mph

Casey

c_1 = 8miles

r_2 =1mph

Required

The rate at which the distance increases

Their movement forms a right triangle and the distance between them is the hypotenuse.

At n_1 =6miles and c_1 = 8miles

The distance between them is:

d_1 = \sqrt{n_1^2 + c_1^2}

d_1 = \sqrt{6^2 + 8^2}

d_1 = \sqrt{100}

d_1 = 10miles

After 1 hour, their new position is:

New = Old + Rate * Time

n_2 = n_1 + r_1 * 1

n_2 = 6 + 2 * 1 = 8

And:

c_2 = c_1 + r_2 * 1

c_2 = 8 + 1 * 1 = 9

So, the distance between them is now:

d_2 = \sqrt{n_2^2 + c_2^2}

d_2 = \sqrt{8^2 + 9^2}

d_2 = \sqrt{145}

d_2 = 12.04

The rate of change is:

\triangle d = d_2 -d_1

\triangle d = 12.04 -10

\triangle d = 2.04

5 0
3 years ago
I don't understand word problems can someone please answer it for me and I need it ASAP.
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Answer:

Inequality: 3 + 1.2c

What you'd put on graph: 1 ≥ 13.50

5 0
3 years ago
Hong has been given a list of 6 bands and asked to place a vote. his vote must have the names of his favorite and second favorit
mixas84 [53]
This requires us to find the number of permutations of 6 different bands taken 2 at a time:
6P2=\frac{6!}{(6-2)!}=30\ different\ votes.
7 0
3 years ago
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