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uysha [10]
3 years ago
9

Evaluate when r=  -3

Mathematics
1 answer:
goblinko [34]3 years ago
6 0

The answer is B) 30

parenthesis first (5×-3)(-2)

5×-3= -15

-15×-2= 30

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A rectangle has a length of 4x plus 5 and a width of 8x minus 4. Which expression shows the perimeter of that rectangle? A: 4x +
mezya [45]

Answer: The answer is (D) 24x+2.


Step-by-step explanation:  Given that there is a rectangle, where length of the rectangle is given by

\ell=4x+5,

and width of the rectangle is given by

b=8x-4.

We are to find the perimeter of the rectangle. To do so, we need to add two times length with two times breadth of the rectangle.

Therefore, perimeter is given by

p=2\ell+2b=2\times(4x+5)+2\times(8x-1)=8x+10+16x-8=24x+2.

Thus, the correct option is (D).


6 0
4 years ago
Which describes the correct procedure when converting a number from scientific notation to standard notation if the power of 10
jenyasd209 [6]

Answer:

A. Move the decimal point to the left

Step-by-step explanation:

Given that:

The scientific notation = 10⁻¹⁰

Let recall;

That the standard notation usually took the form of an inverse:

For example;

Let say 10⁻¹ will be \dfrac{1}{10} in scientific notation;

SO, \dfrac{1}{10} = 0.1

Now; we are given 10⁻¹⁰ as a scientific notation,

To standard notation, we get:

10^{-10} = \dfrac{1}{100}

= 0.01

Thus, it is true to say that the decimal point will be moved to the left side when converting a number from scientific notation to standard notation if the power of 10 is  -10.

4 0
3 years ago
Help me out please thank u
Fiesta28 [93]

Answer:

Three points determine a plane.

:)

4 0
3 years ago
Read 2 more answers
What is the answer please, thanks
Alex787 [66]
748 inches... You do know there's a meter to inches converter online, right?
3 0
3 years ago
What is the answer to the equation m(x)=<img src="https://tex.z-dn.net/?f=m%28x%29%3D%5Cfrac%7B1%7D%7B2%7D%7Cx%2B4%7C-1" id="Tex
Law Incorporation [45]
The answer is 145. I’m pretty sure
7 0
3 years ago
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