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Verdich [7]
3 years ago
7

If a(x + 1) + b(x − 1) − 2 = 0 for all real x, then a =

Mathematics
1 answer:
jek_recluse [69]3 years ago
7 0

Answer:

D) 1

Step-by-step explanation:

using the distributive property we have ax+a+bx-b-2=0. because the equation is true for all real x, ax=-bx. this means a-b-2=0 and a=-b. a-b-2=0 becomes a=b+2. then we substitute a for -b and get -b=b+2 which becomes 2b=-2 so b=-1. since a=-b, a=1

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. In a nature conservatory, the ratio of butterflies to total number of flying insects is 36 to 100.
sashaice [31]
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5 0
3 years ago
Are 1 and 2 correct ? I need help
Rama09 [41]
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5 0
3 years ago
A fruit-drinking company tester a new flavor. In a taste test, 34% of the people taking part liked the new flavor. If 51 people
almond37 [142]

Answer:

C. 150

Step-by-step explanation:

The number of people who took the test is unknown, so call it x.

34% of x liked the flavor.

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That means that 34% of x is equal to 51.

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4 0
2 years ago
Use mental math for 122+306
poizon [28]
306+122=428
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then 2 and 0 which is 2.
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4 0
3 years ago
Pls help me with this question it wold be great help its circumference
Ivan

Answer:

C = 9.42\ m

Step-by-step explanation:

The formula for the circumference of a circle with the diameter is:

C = \pi d

Since the diameter is 3m, solve for C:

C = \pi d\\C = \pi3\\C = (3.14) \times 3\\C = 9.42

6 0
2 years ago
Read 2 more answers
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