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Katarina [22]
3 years ago
8

Identify an equation in point-slope form from the line perpendicular to y=-4x-1 that passes through (-2,7)

Mathematics
1 answer:
vova2212 [387]3 years ago
8 0

Answer:

y-7= 1/4 (x+2)

Step-by-step explanation:

perpendicular lines have a slope that are negative reciprocals

so y = -4x-1  has a slope of -4

the negative reciprocal is - (-1/4)  = 1/4


point slope form

y-y1 = m(x-x1)

y-7 =1/4(x--2)

y-7= 1/4 (x+2)

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Rewrite the equation by completing the square. X^2-14x+40=0
OLga [1]

Answer:

(x – 7)² – 9

Step-by-step explanation:

I hope this helps

4 0
3 years ago
Over six months, a family's electric bills averaged $55 per month. The bills for
kenny6666 [7]
Answer:

$54.35

Step-by-step explanation:

The differences from the average value are;

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The total of these differences is +0.65, so the final bill must have a value that is $0.65 lower than the average.

The bill for the 6th month is $54.35.
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Check
The average of the bills for 6 months is;

(57.60 +60 +53.25 +50.75 +54.05 +54.35)/6 = 330/6 = 55

7 0
3 years ago
Solye for x.<br> 8(x + 1) - 3[X + 4) = 7(2 - x)
kramer

Answer:

3/2

Step-by-step explanation:

distribute 8,-3,7

4 0
3 years ago
If 1/2 is a zero of the polynomial p (x) = 2x4 − ax3 + 4x2 + 2x + 1, then find the value of 'a'.
nordsb [41]
1/8 - a/8+ 1 + 1 + 1=0
A=-25
4 0
3 years ago
Which equation will solve the following word problem? One small pitcher and one large pitcher can hold 12 cups of water. If the
Delicious77 [7]
Option 3
Amount of water hold by both the pitchers (Large + small) = 12 cups
Let the small pitcher holds the water = S cups
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Equation for this situation will be,
S + 2S = 12
Therefore, Option (3) will be the answer.
6 0
3 years ago
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