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marin [14]
3 years ago
10

What is the first step in evaluating the expression shown below? (12.9-3.1) 6.2-2 + 43

Mathematics
1 answer:
Nata [24]3 years ago
3 0

Answer:

Subtract 3.1 from 12.9

Hope it helped

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Can someone plz help :( I need help asap
erastovalidia [21]

Answer:

x=120, y=160. and is that u in ur pfp

Step-by-step explanation:

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3 years ago
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Hi i have no idea does anyone have an idea ? please
ivann1987 [24]

Answer:

y = 2(x+5)²- 60

Step-by-step explanation:

f(x) = ax² +bx +c,  is the standard form

f(x) = a(x - h)² +k , is the vertex form where the (h, k) is the vertex

y = 2x²+20x -10 ,

factor 2 from the two terms

y = 2(x² +10x) -10,

what perfect square has x² +10x? ... x²+10x +25 = (x+5)²

y = 2(x²+10x+25 )- 50 -10,

add 25 in parenthesis to get a perfect square yet subtract 2*25 = 50 so the equation will stay the same

y = 2(x+5)²- 60,

the equation has the vertex at (-5, -60)

3 0
2 years ago
Can someone explain, i'm literally sweating trying to figure it out
ASHA 777 [7]

Answer:

54 degrees.

Step-by-step explanation:

So a fun fact is that the exterior angle is equal to the sum of the opposite two interior angles (at least within triangles).

Given this, set these values equal to each other to get the value of a.

d = a + b

2a = (a+10)+44

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The measure of the exterior angle is 54 degrees.

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3 years ago
Evaluate 4 root 9 times square root nine divided by 4 root 9 to the fifth power
igomit [66]
Hope this helps, please let me know

6 0
4 years ago
Write an equation for the description . The length of a rectangle is twice its width . The perimeter of the rectangle is 122 fee
Lubov Fominskaja [6]

Answer:

  122 = 2(2w +w)

Step-by-step explanation:

If we let w represent the width of the rectangle, then 2w is the length of it. The perimeter is twice the sum of length and width.

  P = 2(L+W)

  122 = 2(2w +w) . . . . an equation for the description

3 0
3 years ago
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