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erma4kov [3.2K]
3 years ago
12

Set up a percent ratio to help find the part given the percent and the whole. On a 50-point quiz, Jenna earned 82% of the points

. How many points did she earn?
Mathematics
1 answer:
Furkat [3]3 years ago
6 0
Start by moving the decimal point over one-hundredth (which makes the 82% 0.82)

Then, multiply 0.82 by 50.

This will give you the answer of 41 points that Jenna earned/ answered correctly
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Misha Larkins [42]
The answer is 2.686, and i am writing these extra characters to pass the 20 character qualifications.
4 0
3 years ago
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What is the sum of (2x4 + 5x3 - 8x2 - x + 10) and (8x4 - 4x3 + x2 - x + 2)?
balu736 [363]

Option D: 10x^4+x^3-7x^2-2x+12 is the right answer

Step-by-step explanation:

Given polynomials are:

P_1 : 2x^4+5x^3-8x^2-x+10\\P_2: 8x^4-4x^3+x^2-x+2

We have to find the sum of polynomials

So,

S = P_1+P_2\\= (2x^4+5x^3-8x^2-x+10) + (8x^4-4x^3+x^2-x+2)\\=2x^4+5x^3-8x^2-x+10+8x^4-4x^3+x^2-x+2\\

Combining like terms

=2x^2+8x^4+5x^2-4x^3-8x^2+x^2-x-x+10+2\\= 10x^4+x^3-7x^2-2x+12

Hence,

Option D: 10x^4+x^3-7x^2-2x+12 is the right answer

Keywords: Polynomials, sum

Learn more about polynomials at:

  • brainly.com/question/2116906
  • brainly.com/question/2131336

#LearnwithBrainly

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3 years ago
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17 Q Graph the inequality n a coordinate plane
aliina [53]
The resultant graph is shown in the attached image.

Explanation:
Before we begin, remember that when we multiply by a negative sign, we flip the sign of the inequality
The given inequality is:
-y ≤ 3x - 5
We will multiply both sides by -1 to get a positive y vale. This will give us:
y ≥ -3x + 5

Now, to graph the inequality, we will first draw the line y = -3x + 5 and then shade the region having y values greater than the line. 
To know the region, you will simply use trial and error method for random points on the two sides of the line.

The final solution would be as shown in that attachment.

Hope this helps :)

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kozerog [31]

Answer:

\frac{x}{7} - \frac{3}{8} = \frac{27\\}{56}

Step-by-step explanation:

C

6 x 8 = 32

7 x 3 = 21

32 - 21 = 27

7 0
2 years ago
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irakobra [83]
Ok so the first one is 
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