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Natali [406]
4 years ago
7

Find the unit rate. $68 for 8 1/2 hour

Mathematics
1 answer:
aalyn [17]4 years ago
4 0

Step-by-step explanation:

Unit rate = 68 ÷ 8.5 = 8

8 1/2 = 8.5 hours

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What is the answer of 9-2x= -23
Lana71 [14]
X=7
Step 1: add nine to both sides it becomes
-2x=-23+9 —> -2x=-14
Step 2: divide by -2 on both sides it becomes
X=-14/-2 —> x=7
8 0
3 years ago
A die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. In the next three rounds (the die is rolled 20 time
qwelly [4]
The experimental probability is found as the average of the results of the experiments. To find the average you can just add the different results and divide by the number of times that the experiment was performed. So, you add (6/20 + 6/20 + 5/20 + 7/20= and divide by 4 (which is the number of times that the experiment was carried out). Applying the properties of the division of fractions, that is equal to [6 + 6 + 5 + 7] / (20*4) = 0.3. <span>Answer: 0.3</span>
3 0
4 years ago
If f(x)=2x-6 and g(x)=x^3 what is (g f)(0)
kow [346]
<h2>Hello!</h2>

The answer is:

(g\circ f)(0)=-216

<h2>Why?</h2>

To composite functions, we need to evaluate functions in another function(s), for example:

Given f(x) and g(x), if we want to calculate f(x) composite g(x), we need to evaluate g(x) into f(x).

So, we are given the functions:

f(x)=2x-6\\g(x)=x^{3}

And we are asked to calculate g(x) composite f(x), and then evaluate "x" to 0, so, calculating we have:

(g\circ f)(x)=g(f(x))\\\\(g\circ f)(x)=(2x-6)^{3}

Now that we have the composite function, we need to evaluate "x" equal to 0, so:

(g\circ f)(0)=(2x-6)^{3}\\\\(g\circ f)(0)=(2*(0)-6)^{3}=(0-6)^{3}=-6*-6*-6=-216

Hence, we have that:

(g\circ f)(0)=-216

Have a nice day!

6 0
4 years ago
How many girls are in a group that has 16 boys? Complete the ratio table to solve the problem.
Svetach [21]
Since there are zero girls there are a number of options say 1:0 is an option,2:0 is an option here are the rest. 8:0 4:0 16:0. Hope this helped.
7 0
4 years ago
Read 2 more answers
Susan made 4 uniform annual deposits of $1800 in a savings account that earned an interest rate of 2% per year. Her last deposit
Norma-Jean [14]

Answer:

"$ 2,880" is the right answer.

Step-by-step explanation:

The given values are:

Annual deposit,

PV = $1,800

Interest rate,

r = 2%

or,

  = 0.02

As we know,

⇒  FV=PV\times (1+r)n

On substituting the values, we get

⇒         =1,800\times  (1 + 0.02) 4 + 7 + 13

⇒         =1,800\times (1.02)24

⇒         =1,800\times 1.6

⇒         = 2,880 ($)

5 0
3 years ago
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