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bezimeni [28]
3 years ago
9

What is the answer to -3(x+6)=​

Mathematics
1 answer:
Amanda [17]3 years ago
7 0
-3x - 18 = 0
-3x = 18
x = -6
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The perimeter of a playing field for a certain sport is 174 ft. The field is a rectangle, and the length is 45 ft longer than th
Leno4ka [110]

Answer:

21 ft by 66 ft

Step-by-step explanation:

From the question,

P = 2(L+W)............... Equation 1

Where P = Perimeter of the playing Field, L = Length of the playing Field, W = width of the playing Field.

If the Length of the Field is 45 ft longer than the width,

L = 45+W............ Equation 2

Substitute Equation 2 into equation 1

P = 2(45+W+W)

P = 90+4W............. Equation 3

Given: P = 174 ft.

Substitute into equation 3

174 = 90+4W

4W = 174-90

4W = 84

W = 84/4

W = 21 ft.

Substituting the value of W into equation 2

L = 45+21

L = 66 ft.

Hence the dimensions of the playing field is 21 ft by 66 ft

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2 years ago
Which expression has an equivalent value to x2 + 9x + 8 for all values of x?
Sindrei [870]
The first one! hope it helps
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mel-nik [20]

Answer:

C. straight

Step-by-step explanation:

 A Linear Pair is two adjacent angles whose non-common sides form opposite rays.

If two angles form a linear pair, the angles are supplementary.

A linear pair forms a straight angle which contains 180º, so you have 2 angles whose measures add to 180, which means they are supplementary.

In the figure given in attachment, AB and BC are two non common sides of ∠ABD and ∠DBC.

∠1 and ∠2 form a linear pair.

The line through points A, B and C is a straight line.

∠1 and ∠2 are supplementary.

Thus two non-common sides of adjacent supplementary angles form a <u>straight</u> angle.

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murzikaleks [220]

The arc length, radius and the included angle are related as

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Correct choice is (B).

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3 years ago
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Why is 1 + (−5) equal to −4? PLEASE HELP
AfilCa [17]

Answer:

Since the -5 is a bigger number than 1 you would keep the negative and carry it to the -4.

Step-by-step explanation:

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