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VMariaS [17]
3 years ago
13

HELP HELP HELP HELP f(x)=3x-7 what is the domain and range?!?!?!

Mathematics
1 answer:
kirill115 [55]3 years ago
5 0

Answer:

the domain is x and the range is the answer

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Can someone match these up?
Anuta_ua [19.1K]

Answer:

(-7)(-1.2) = 8.4

(-2.5)(-2) = 5

(2.5)(-2) = -5

(7)(-1.2) = -8.4

Step-by-step explanation:

Multiplication.

4 0
3 years ago
Kong took 15\%, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds. How many
andreev551 [17]

Answer:

Nolan took 97.75 seconds. you may need to round it to 98.

Step-by-step explanation:

multiply 15% by 85 which equals 12.75 then add to 85

6 0
3 years ago
A railroad track rises 30 feet for every 400 feet of track. What is the measure of the angle of elevation of the track?
gtnhenbr [62]

Answer:

Step-by-step explanation:

Rising 30 feet for every 400 feet of track is not a very large angle of elevation.  We set this up as a right triangle to use right triangle trig to solve for the missing angle.  The height is 30 and the hypotenuse is 400.  The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio.  Setting up the ratio using our info:

sin\theta=\frac{30}{400}

When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:

sin^{-1}(

Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.

3 0
3 years ago
What is the prime factorization of 81m^2 x^3? A) 9^2 • m^2 • x^3 B) 3^3 • m^2 • x^3 C) 3^3 • m • x D) 3^4 • m^2 • x^3
Diano4ka-milaya [45]

81m^2x^3=3^4\cdot m^2\cdot x^3\to\boxed{D.}

8 0
3 years ago
Suppose Eric and Isaac both drive the same car, and have the same
Leto [7]

Answer:

eric

Step-by-step explanation:

just took the test

5 0
3 years ago
Read 2 more answers
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