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dezoksy [38]
3 years ago
13

Please help me ASAP Its not hard im just tired

Mathematics
1 answer:
Vilka [71]3 years ago
7 0

Answer:

Step-by-step explanation:

= 7.4z + 8z - 12

= (7.4 + 8)z - 12

= 15.4z - 12

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11.Combine like terms 12.The length of a rectangle is 4x + 7 and the width is 3x - 1. What is the perimeter of the rectangle? pl
Darya [45]

Answer:

Question 11 would be D) 5x - 4y and Question 12 would be A) 7x + 6

3 0
3 years ago
Find the domain and range<br> y= 3x - 3
elena-14-01-66 [18.8K]
Domain: (-infinity, infinity)
Range: (-infinity, infinity)
6 0
3 years ago
What’s the derivative of the function: A) f(x)= 1/x , in point 2. B) f(x)= 5x^2 , in point 3
bija089 [108]

Using the power rule, the derivatives are given as follows:

a) f^{\prime}(2) = -\frac{1}{4}.

b) f^{\prime}(3) = 30.

<h3>What is the power rule for a derivative?</h3>

Suppose we have a power function given by:

f(x) = x^n

The derivative of the function is given by:

f^{\prime}(x) = n \times x^{n-1}

Item a:

The function is:

f(x) = \frac{1}{x} = x^{-1}

Then the derivative is:

f^{\prime}(x) = -x^{-2} = -\frac{1}{x^2}

When x = 2, the derivative is:

f^{\prime}(2) = -\frac{1}{4}

Item b:

The function is:

f(x) = 5x^2

Then the derivative is:

f^{\prime}(x) = 10x

When x = 3, the derivative is:

f^{\prime}(3) = 30

More can be learned about derivatives at brainly.com/question/2256078

#SPJ1

5 0
2 years ago
What is the measure of angle 1? 20° 42° 138° 160°
scoray [572]

I think it's the last one Which is 160° :)

8 0
4 years ago
This is my home work of 8th ducking grade butch so see if you could answer it
Nikitich [7]
So 4/5 times "something" = 32.
That means that something = 32 / (4/5) = 40.

To turn this multiplication around, it helps to think about 2 * 3 = 6, how would you write 3 = ?. You quickly :"see" that it should be 3=6/2.
3 0
3 years ago
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