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g100num [7]
3 years ago
9

What is the answer for 2a x -a?

Mathematics
1 answer:
Verizon [17]3 years ago
6 0

Answer:

-2a²

Step-by-step explanation:

The question is  2a × -a

This means 2a(-a)

= -2×(a×a)

=-2(a²)

=-2a²

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HELPPP
alina1380 [7]
Ok, So:

10x3=30-3=27

It Would Be 27
6 0
3 years ago
Read 2 more answers
1 2 3 4 5 6 7 8 9 10
Maslowich

The graph that represents viable values for y = 2x is Option A.

<h3>What is a Straight Line Function ?</h3>

A straight line function is given by y = mx +c , where m is the slope and c is the y intercept.

The given equation is y = 2x

here m  = 2

x is the number of pounds of rice scooped and purchased from a bulk bin

y is the total cost of the rice

as both the data cannot be negative , Option C , D is out of choice

The Option 1 represents a straight line and it starts at the origin which is satisfied by y = 2x as y = 0 , at x = 0

ends at  point (2.5, 5) giving a slope of m =2 ,

Therefore , The graph that represents viable values for y = 2x is Option A.

To know more about Straight Line equation

brainly.com/question/959487

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6 0
2 years ago
A survey of 1250 trees in a small wood showed that 32 percent were oak trees 26 percent were birch trees and the remainder were
timofeeve [1]

Answer: There were 525 pine trees.

Step-by-step explanation:

Given: Total trees = 1250

Percentage of oak trees = 32%

Percentage of birch trees = 26%

Since remaining trees are pine trees.

Percentage of pine trees = 100% - 32% - 26%

=42%

The number of pine trees = 42% of 1250

= 0.42 ×1250

= 525

Hence, there were 525 pine trees.

5 0
2 years ago
Your friend says that the absolute value equation | 3x+8 |-9=-5 has no solution because the constant
sineoko [7]

Answer:

Incorrect

Step-by-step explanation:

We are given the equation:

\displaystyle \large{|3x+8|-9=-5}

Add both sides by 9.

\displaystyle \large{|3x+8|-9 + 9=-5 + 9} \\ \displaystyle \large{|3x+8|=4}

When we want to tell if the absolute equation has solutions or not, we have to simplify in this form first: or isolate the absolute sign.

\displaystyle \large{ |ax + b|  = c}

If c ≥ 0, the equation has solutions.

If c < 0, the equation does not have solutions.

Therefore, it does not always matter if the constant on right side is in negative because if there is a number on the left side then there is a chance that the equation has solutions.

From |3x+8| = 4 is equivalent |3x+8|-9=-5 and the right side is 4 which is positive.

Hence, the equation does have a solution!

3 0
3 years ago
Write the slope-intercept form of the equation of the line.<br>​
Vilka [71]

Answer:

I guess its 2/2.

Step-by-step explanation:

7 0
3 years ago
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