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patriot [66]
2 years ago
8

On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The numb

er b varies directly with the number a. For example b = 2a equals negative 2 and StartFraction 3 Over 4 EndFraction. when a = –2a equals negative 2 and StartFraction 3 Over 4 EndFraction.. Which equation represents this direct variation between a and b?
b = –a
–b = –a
b – a = 0
b(–a) = 0
Mathematics
2 answers:
-BARSIC- [3]2 years ago
8 0

Answer:

b=-a

Step-by-step explanation:

because it just is, do not question my authority.

Your welcome....

Guest
1 year ago
um ok mom lol
den301095 [7]2 years ago
4 0

Answer: b=-a

Step-by-step explanation:

got it right on edgenuity!

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The evening host of a dinner dance reached into a bowl, mixed all the tickets around, and selected the ticket to award the grand
Scilla [17]

Answer:

Simple random sampling method is used here.

Step-by-step explanation:

Given is that the evening host of a dinner dance reached into a bowl, mixed all the tickets around, and selected the ticket to award the grand door prize.

We can see that this is a simple random sampling method as every name on the ticket has an equal opportunity to get selected.

8 0
2 years ago
What is the circumference of this circle, in millimeters? use 22/7 for pi<br><br> r = 49
ICE Princess25 [194]
Circumference=2\pi r=2\times \dfrac{22}{7} \times 49 = \boxed{308 \text{ mm}}
7 0
2 years ago
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If 10x + 2 = 7, what is the value of 2x?
Julli [10]

For this case we have the following equation:

10x + 2 = 7

From here, we clear the value of x.

We have then:

10x = 7-2\\10x = 5\\x = \frac {5} {10}\\x = \frac {1} {2}

Then, we look for the value of 2x. We have then:

2x = 2 \frac {1} {2}\\2x = \frac {2} {2}\\2x = 1

Answer:

The value of 2x is given by:

2x = 1

6 0
2 years ago
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The top surface of a desk has a length of 5.6 ft and the length is 4 times its width what is the width of the desk
IgorLugansk [536]

Answer:

<u>The width of the top surface of the desk is 1.4 feet.</u>

Step-by-step explanation:

1. Let's review all the information given for solving this question:

Length of the top surface of a desk = 5.6 feet

Width of the top surface of a desk= x

2. Let's find the width of the top surface of the desk

Length of the top surface of a desk = Four times the width

5.6 = 4x

5.6/4 = 4x/4 (Dividing by 4 at both sides)

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<u>The width of the top surface of the desk is 1.4 feet.</u>

5 0
2 years ago
Which represents the polynomial written in standard form?
pshichka [43]

Answer:

Option A.

Step-by-step explanation:

In order to write any polynomial in standard form, we need to check the degree of each term, then write each term in order of degree, from highest to lowest, left to right.

The given polynomial is

8x^2y^2-\dfrac{3x^3y}{2}+4x^4-7xy^3

Here, the combine degree of x and y in each term is 4.

If we arrange the terms according to the degree of x, then

4x^4-\dfrac{3x^3y}{2}+8x^2y^2-7xy^3

If we arrange the terms according to the degree of y, then

-7xy^3+8x^2y^2-\dfrac{3x^3y}{2}+4x^4

Hence, the correct option is A.

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2 years ago
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