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storchak [24]
2 years ago
8

I am in a algebra 1 class and we are learning about variables and slope and all that stuff , and also were mainly talking about

the substitution method and elimination method .. and I do not understand nothing at all ​
Mathematics
1 answer:
kozerog [31]2 years ago
8 0

Answer:

okay .. then what is your questions ..

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I cant figure this one out at all
eduard

Answer:

a. 2^(x-2) = g^(-1)(x)

b. A, B, D

Step-by-step explanation:

the phrasing attached in the image is flagged as inappropriate, so i will be replacing it with g(x) and its inverse with g^(-1)(x)

1. replace g(x) with y and solve for x

y = log₂(x) + 2

subtract 2 from both sides to isolate the x and its log

y - 2 = log₂(x)

this text is replaced by the second image -- it was marked as inappropriate

thus, 2^(y-2) = x

replace x with g^(-1)(x) and y with x

2^(x-2) = g^(-1)(x)

2. plug this in to points A, B, C, D, E, and F

A: (2,1)

plug 2 in for x

2^(2-2) = 2⁰ = 1 so this works

B: (4, 4)

2^(4-2) = 2²= 4 so this works

C: (9, 3)

2^(9-2) = 2⁷ = 128 ≠ 3 so this doesn't work

(5, 8)

2^(5-2) = 2³ = 8 so this works

E: (3, 5)

2^(3-2) = 2¹ = 2 ≠ 5 so this doesn't work

F: (8, 5)

2^(8-2) = 2⁶ = 64 ≠ 5 so this doesn't work

4 0
2 years ago
A plane is flying at an altitude of 17,000 feet. The angle of depression from the plane to the airport is 21 degrees. What is th
lesantik [10]

Answer:

tan 21 = 17 000 / d

d = 17000/ tan21 = 44286.5 ft

5 0
3 years ago
One year, the population of a city was 164,000. Several years later it was 182,040. Find the percent increase.
ElenaW [278]
182,040-164,000 that’s the answer YOUR WELCOME
3 0
2 years ago
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Jason has 20 coins composed of nickels and dimes. If the total value is $1.10 how many coins of each does he have
SOVA2 [1]

Answer:

Jason has 10 dimes and 2 nickels

because each dime equals 10 cent

and each nickel equals 5 cent

10×10= 100

2×5= 10

100+10= 110 add the decimal =$1.10

6 0
3 years ago
Lins goal is to run 5 miles She ran 1/2 mile what fraction of her goal is t hat?​
cluponka [151]

Answer:

1/10 or 0.1 or 10%

Step-by-step explanation:

5 0
3 years ago
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