1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ratling [72]
2 years ago
11

Which expression is equivalent to (3a)–2?

Mathematics
1 answer:
Travka [436]2 years ago
7 0

Answer:

Its (A), 1/9a^2

if you work out all of the other options it does not equal to the expression (3a)^-2

Step-by-step explanation:

You might be interested in
<img src="https://tex.z-dn.net/?f=4%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20%2B%20x%20%3D%205%20%7Bx%7D%5E%7B2%7D%20%20%2B%202x%20%5C%
lbvjy [14]

Answer:

4 {x}^{2}  - 2x + x = 5 {x}^{2}  + 2x \\ 4 {x}^{2}  - x = 5 {x}^{2}  + 2x \\ 4 {x}^{2}  - 5 {x}^{2}  = 2x + x \\  - 1 {x}^{2}  = 3x \\  - x = 3 \\ x =  - 3 \\ thank \: you

5 0
3 years ago
Read 2 more answers
4.<br> 122 - 4(6) + 1<br> Evaluate<br> 112<br> 122 - 4(6) + 1<br> 112
san4es73 [151]

Answer:

ans=97

Step-by-step explanation:

(i)u should use BEDMAS RULE.

122-4(6)+1

=122-24+1

=122-25

=97

8 0
2 years ago
Would you rather drive 0.3 miles to fill up for $3.59 per gallon OR drive 1.2 miles to fill up for $3.41 per gallon?Please expla
Vsevolod [243]
We know that, in the US, the average mile per gallon was 25 mpg in 2015. Since we don't have the mile per gallon of the car in our problem, we are going to use that average.
For our first situation, <span>drive 0.3 miles to fill up for $3.59 per gallon:
</span>\frac{25miles-----\ \textgreater \ 1gallon}{0.3miles-----\ \textgreater \ xgallons}
\frac{25}{0.3} = \frac{1}{x}
x= \frac{(1)(0.3)}{25}
x=0.012
<span>We just proved that in our trip, we used 0.012 gallon, and at $3.59 per gallon; we will pay  (0.012)(3.59)=$0.04 for that gasoline.

For our second situation, </span><span>drive 1.2 miles to fill up for $3.41 per gallon:
</span>\frac{25miles-----\ \textgreater \ 1gallon}{1.2miles-----\ \textgreater \ xgallons}
\frac{25}{1.2} = \frac{1}{x}
x= \frac{(1)(1.2)}{25}
x=0.048
We just proved that in our trip, we used 0.048 gallon, and at $3.41 per gallon; we will pay  (0.048)(3.41)=$0.16 for that gasoline.

We can conclude that is much better to drive 0.3 miles to fill up for $3.59 per gallon than drive <span>1.2 miles to fill up for $3.41 per gallon.</span>
8 0
3 years ago
Two equations are given below:
jeka94
Siince 2nd equation is already equal a, subsitute b-2 for a in the other equation

b-2-3b=28
-2-2b=28
add 2 to both sides
-2b=30
divide both sides by -2
b=-15
sub back
a=b-2
a=-15-2
a=-17

(a,b)
(-17,-15)

3rd choice
4 0
3 years ago
Given: h(x)=-4x and g(x) = 3x +1<br> Find:<br> (nog)
pashok25 [27]

Answer:

Step-by-step explanation:

h(g(x))

g(x)= 3x + 1

h(3x + 1) = 4(3x + 1) = 12x + 4

4 0
3 years ago
Other questions:
  • What is <br> x=5y-1<br> x+2y=13
    6·2 answers
  • The product of the square of x and seven. Write as an expression.
    11·2 answers
  • Please answer 2 3 4 and explain how you got your answer I will give brainliest must explain for all 3
    7·1 answer
  • Which number is larger -3.4 or -3 1/2 (BTW this is a fraction)? How will graphing these numbers on a number line help you determ
    15·1 answer
  • What number is between 0.5 and 5/8
    5·1 answer
  • Hello I really need help ty and explain thanks
    8·1 answer
  • Brendon sells tires at the local auto parts store. He told a customer that the tire width for a new tire was 21.5 centimeters. W
    10·2 answers
  • How do you solve 4devided by <br> 12 step by step long division
    5·2 answers
  • Write a function rule for the statement the output is half of the input
    11·2 answers
  • Ok ok I know I’m gonna ask this again so please ( you do have to get me all the names btw ) I’ll give you brain list
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!