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lesya692 [45]
3 years ago
13

If f(x)=5x-7,what isf(3)?​

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
4 0

Answer:

Explanation:

f  (  − 3 )  basically means substitute  − 3  for  x  in the function  − 5 x

f

(

−

3

)

=

−

5

(

−

3

)

−

7

f

(

−

3

)

=

15

−

7

f

(

−

3

)

=8

Step-by-step explanation:

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40pts and a brainliest to the person who answers this question with detailed explanations and steps to solve shown.
Nesterboy [21]

Answer:

y = 7 sqrt(2)

Step-by-step explanation:

Since this is a triangle, we can use trig functions

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25 Points! Show ALL Work! Image Attached.
SVEN [57.7K]

Answer:

a) x = 13

b) x = 7

Step-by-step explanation:

A) Since they have the same base of 2 so

x + 4 + (-5) = 12

          x - 1 = 12

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b) Since they have the same base of -3 so

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4 0
3 years ago
If DF = 9x-39, find EF.
otez555 [7]

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Two parallel lines are crossed by a transversal. What is the value of h? h = 60 h = 80 h = 100 h = 120
lisabon 2012 [21]
I added the diagram of the question.

<u><em>Answer:</em></u>
h = 60°

<u><em>Explanation:</em></u>
We are given that lines k and l are parallel lines.
This means that angles 120° and h are <u>supplementary angles</u>.
This means that their measures <u>add up to 180°</u>

<u>Therefore:</u>
180° = 120° + h
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h = 60°

Hope this helps :)

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