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Zielflug [23.3K]
3 years ago
12

What is −7x−2(−x−3) when x = 2? −13 −12 −4 24

Mathematics
2 answers:
Svetach [21]3 years ago
7 0

Answer:  -4

Step-by-step explanation:

-7(2) - 2(-2 - 3)

2 * -7 = -14

-2 -3 = -5

-5 * -2 = 10

-14 - 10 = -4

Rufina [12.5K]3 years ago
4 0

The answer is C: -4.  

-7*2-2(-2-3)

-7*2+4+6 (Hint: - * - = +)

-14+4+6

-14+10

-4

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Which ordered pairs are solutions to the inequality 2y-x≤-6 ?
Ray Of Light [21]

Answer:

C

Step-by-step explanation:

3 0
3 years ago
What is m<br> A.55°<br> B.58°<br> C.122°<br> D.125°
Andreyy89

Answer: k = 55 degrees

Step-by-step explanation:

to find J, subtract 122 from 180, you get 58. The total number of degrees is 180. Since L is given as 67, and 67+58=125. Simply subtract 125 from 180 which is 55 degrees

5 0
4 years ago
A boat can travel 412 miles on 103 gallons of gasoline. How much gasoline will it need to go 184 miles?
dlinn [17]

Hey there! I'm happy to help!

Let's set this up as a proportion (2 equal ratios).

\frac{miles}{gallons} =\frac{412}{103} =\frac{184}{g}

If you multiply the diagonal numbers, their products will be equal. (412×g=103×184). This is called cross multiplying. Now we can solve for g.

412g=18952

Divide both sides by 412.

g=46

Therefore, the boat will need 46 gallons of gasoline to go 184 miles.

Have a wonderful day! :D

8 0
4 years ago
Please help!!
Anni [7]
Data set 1 : the mean is (1+2+4+4+5+5+6+7+9+9+9+11) / 12 = 72/12 = 6

the MAD is :
1 - 6 = -5....|-5| = 5
2 - 6 = -4....|-4| = 4
4 - 6 = -2...|-2| = 2
4 - 6 = -2...|-2| = 2
5 - 6 = -1...|-1| = 1
5 - 6 = -1...|-1| = 1
6 - 6 = 0 ...| 0| = 0
7 - 6 = 1....|1| = 1
9 - 6 = 3...|3| = 3
9 - 6 = 3...|3| = 3
9 - 6 = 3...|3| = 3
11 - 6 = 5...|5| = 5

(5+4+2+2+1+1+0+1+3+3+3+5) / 12 = 30/12 = 2.5 <== the MAD

2nd data set :
the mean is (1+3+4+6+6+6+7+9+9+10+10+13) / 12 = 84/12 = 7

mad is :
1 - 7 = -6...| -6| = 6
3 - 7 = -4...|-4| = 4
4 - 7 = -3...|-3| = 3
6 - 7 = -1...|-1| = 1
6 - 7 = -1..|-1| = 1
6 - 7 = -1..|-1| = 1
7 - 7 = 0...|0| = 0
9 - 7 = 2...|2| = 2
9 - 7 = 2...|2| = 2
10 - 7 = 3..|3| = 3
10 - 7 = 3...|3| = 3
13 - 7 = 6...|6| = 6

(6+4+3+1+1+1+0+2+2+3+3+6) / 12 = 32/12 = 2.67 <== the MAD

the difference of the means is 1. This value is less then half of the mean absolute deviation of either data set. <== ur answer


8 0
3 years ago
Read 2 more answers
The length (L) of a simple pendulum is directly proportional to the square of the time period (T). Which type of graph can best
jek_recluse [69]
<span>The length (L) is directly proportional to the square of the time period (T) =>

L = K * T^2

That is a quadratic relation.

Answer: e. quadratic
</span>
3 0
3 years ago
Read 2 more answers
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