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Citrus2011 [14]
3 years ago
15

Which function is the inverse of f(x) = -5x - 4?

Mathematics
1 answer:
Klio2033 [76]3 years ago
7 0

Answer:

-1/5 x -4/5

Step-by-step explanation:

Rewrite the function as

y = -5x-4

Exchange x and y

x = -5y -4

Solve for y

Add 4 to each side

x+4 = -5y -4+4

x+4 = -5y

Divide each side by -5

(x+4) /-5 = -5y/-5

-x/5  -4/5 =y

The inverse is -1/5 x -4/5

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Help me find rate change between 2 and 17
Marrrta [24]

Answer:

1/6

Step-by-step explanation:

find the slope would be change in y /change in x so y2-y1/x2-x1

4-2/24/12=2/12=1/6

8 0
3 years ago
Read 2 more answers
Convert 29/6 and 16/7 to fraction with denominator 42​
natulia [17]

answer is given below

29/6 = 203/42

16/7 = 96/42

to make the denominator 42 we use common tables for this just multiplying .

3 0
2 years ago
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Jose asks his friends to guess the higher of two grades he received on his math tests. He gives them two hints. The difference o
denis23 [38]

Option D. 96 is the correct answer.

Explanation:

Let the higher grade be = x

Let the lower grade be = y

As given, The difference of the two grades is 16

x-y=16 or x=16+y   .... (1)

The sum of one-eighth of the higher grade and one-half of the lower grade is 52.

\frac{1x}{8}+\frac{1y}{2}=52   ... (2)

Putting the value of x=16+y in equation (2)

\frac{16+y}{8}+\frac{y}{2}=52

\frac{16+y+4y}{8}=52

\frac{16+5y}{8}=52

16+5y=416

5y=400

y=80

As x=16+y

x=16+80 = 96

Hence, higher grade is 96.


8 0
3 years ago
The BEEEST answer will get brainliest. Also, I NEED HELP, I'm STUCK!
lana66690 [7]

Answer:

(0.30, 0.42)

Step-by-step explanation:

i took the test :)

3 0
3 years ago
If DGH ~ DEF, Find the value of X
DIA [1.3K]

Answer:

x=25

Step-by-step explanation:

we know that

DGH ~ DEF ---> given problem

Remember that

If two triangles are similar, then the rtio of its corresponding sides is proportional and its corresponding angles are congruent

so

\frac{DG}{DE}=\frac{GH}{EF}

substitute the given values

\frac{52}{91}=\frac{x+3}{2x-1}

(2x-1)52=(x+3)91\\104x-52=91x+273\\104x-91x=273+52\\13x=325\\x=25

4 0
4 years ago
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