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dexar [7]
4 years ago
10

What is the simplified value of the expression below? 8.5+(12+4)x2-7

Mathematics
2 answers:
Lilit [14]4 years ago
7 0
B. 33.5 is your answer
First you want to add 12+4 because it is in parentheses
8.5+16x2-7
Then you multiply 16 by 2
8.5+32-7
Then you add 8.5 to 32
40.5-7
Then you subtract 7 from 40.5 giving you your answer
33.5
xxMikexx [17]4 years ago
3 0

Answer:33.5

Step-by-step explanation:

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Ryan worked for 7 hours and earned $52.50. If this rate increased by 4%, what will he earn if he works for 8 hours?
Ronch [10]

Answer:

$62.40

Step-by-step explanation:

7 hours of work: $52.50

1 hour of work:

$52.50 / 7 = $7.5

$7.5 per hour

If Ryan's rate increased by 4%, what would he earn per hour?

$7.5 * 1.04 = $7.8

New hourly wage: $7.8 per hour

For 8 hours of work:

$7.8 * 8 = $62.4 = $62.40

Answer: $62.40

8 0
3 years ago
Patricia needs atleast $200 to go to camp this summer. she has saved $60. She earns $5 per hour babysitting. Which inequality sh
julsineya [31]

If x is the number of hours Patricia needs to babysit, the inequality is

savings+5x\ge200

Therefore, since she has already saved $60,

\Rightarrow60+5x\ge200

Thus, the inequality that models the question is 60+5x>=200

6 0
1 year ago
What is the volume of this right triangular prism?
Svetlanka [38]
You’re answer is B, you just have to multiply all of the sides together and then add your sums.

Hope this helps:)
6 0
4 years ago
Read 2 more answers
Find the absolute maximum and minimum values of f(x,y)=xy−4x in the region bounded by the x-axis and the parabola y=16−x2.
skad [1K]

Answer:

The absolute maximum and minimum is 20\; \text{and} -20.

Step-by-step explanation:

We first check the critical points on the interior of the domain using the

first derivative test.

f_x=y-4=0

f_y=x=0

The only solution to this system of equations is the point (0, 4), which lies in the domain.

f_{xx}=0, \;f_{yy}=0\; \text{and}\; f_{xy}=-1

\Rightarrow f_{xx}f_{yy}-f_{xy}=o-1=-1

\therefore (0,4) is a saddle point.

Boundary points -  (4,0),  (-4,0), (0,16)

Along boundary  y=16-x^2

   f=x(16-x^2)-4x

=16x-x^3-4x

\Rightarrow f^'=16-3x^2-4=0

\Rightarrow 3x^2=12

\Rightarrow x=\pm2,\;\;y=14

Values of f(x) at these points.

\begin{array}{}(4,0)=-16\\(-4,0)=16\\(0,16)=0\\(2,14)=20\\(-2,14)=-20\end{array}

Therefore, the absolute maximum and minimum is 20\; \text{and} -20.

6 0
3 years ago
What are the solution points for the system graph?
JulsSmile [24]

The solution points to the system graph are (–2,–4) and (4,8). Therefore, option A is correct.

We need to find the solution to the given function.

<h3>How to find the solution to the function from the graph?</h3>

The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be at the point where the two lines intersect.

From the given graph we can see that the two functions are intersecting at (–2,–4) and (4,8).

The solution points to the system graph are (–2,–4) and (4,8). Therefore, option A is correct.

To learn more about the solution points for the system graph visit:

brainly.com/question/16339562.

#SPJ1

7 0
2 years ago
Read 2 more answers
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