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Oliga [24]
3 years ago
12

Can anyone pls Help me in dis pls

Mathematics
1 answer:
Ad libitum [116K]3 years ago
3 0

(-5, 0) and (-1, 0) are the solutions of -2(-x - 3)² + 8 = 0

Step-by-step explanation:

  • Step 1: Find the solutions of -2(-x - 3)² + 8 = 0.

Solutions are the intersecting points of y = -2(-x - 3)² + 8 and y = 0.

⇒ Solutions are (-5, 0) and (-1, 0)

  • Step 2: (-5, 0) and (-1, 0) are solutions of -2(-x - 3)² + 8 = 0
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What constant term should be used to complete the square? x 2 - 5x + _____ = 7
amm1812
The quadratic equation in its generic form is:
 ax2 + bx + c
 To complete squares we must add the following term:
 (b / 2) ^ 2
 The equation is:
 ax2 + bx + c + (b / 2) ^ 2
 We have the following equation:
 x ^ 2 - 5x + k = 7
 By completing squares we have:
 x ^ 2 - 5x + (-5/2) ^ 2 = 7 + (-5/2) ^ 2
 Rewriting:
 x ^ 2 - 5x + 6.25 = 7 + 6.25
 Answer:
 
A constant term should be used to complete the square is:
 
6.25
4 0
3 years ago
Casey has 8 1/2 yards of fabric she uses 2 1/2 yards to make pillows and 3 yards to make curtains how much fabric is remaining
Oliga [24]

Answer:

3 yards

Step-by-step explanation:

8 1/2 - 2 1/2 = 6

6 - 3 = 3

Your answer is 3.

Please mark as brainliest.

8 0
3 years ago
I need help with this please.
SSSSS [86.1K]

Answer:

f )  x+72=90(complementary angle)

x= 90-72

x=18

g )x+77=90

x=90-77

x=13

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7 0
3 years ago
Craig measured a length as 0.034 millimeters. What is the margin of error?
Salsk061 [2.6K]

Answer:

0.0335mm to 0.0345mm

Step-by-step explanation:

7 0
3 years ago
E price of a large pizza increased from $21 to $26. what is the percent of increase in the cost of pizza? round to the nearest p
rodikova [14]
Percent increase=increase/original times 100

increase=26-21=5
original=21

so
5/21 times 100=0.23809523809523809523809523809524 times 100=23.809523809523809523809523809524
round
24%

so 24% increase

7 0
3 years ago
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