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kompoz [17]
4 years ago
10

What is 5+(-4)___14+(-13)

Mathematics
1 answer:
adelina 88 [10]4 years ago
7 0
5 + -4 is 1

This is because lets say you have 5 cookies, you have -4 cookies, in order for you to have the correct amount, you can’t have -4 cookies so you have to subtract those cookies from 5

So 5-4 is 1


14+ -13 is 1 as well

This is because of the same concept. You can’t have -13 cookies, therefore you have to subtract them!

Hopefully I helped you out, If i didn’t I’m so sorry

If you did find this helpful, please mark brainliest or give this a heart, thank you!!!!
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Murljashka [212]

Answer:

see below

Step-by-step explanation:

65 - 32 = 13

13 divide by 65 = 0.20

0.20 x 100% = 20%

so the percentage drop is 20%

therefore, Marcus is correct.

5 0
4 years ago
James is working out and has decided that for every 10 sit-ups he does, he needs to do 4 push-ups. If he does 120 sit-ups, how m
mario62 [17]

Answer:

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Step-by-step explanation:

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3 years ago
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x
OleMash [197]

ANSWER



x=1.39 to the nearest hundredth.



EXPLANATION



We have the equation,



0=2x^2+3x-8



Which can be rewritten as



2x^2+3x-8=0

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

ax^2+bx+c=0


a=2,b=3,c=-8


The quadratic formula is given by;


x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}


We now substitute all the values in to the formula;


x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}

We simplify to obtain;

x=\frac{-3\pm\sqrt{9+64}}{4}


x=\frac{-3\pm\sqrt{73}}{4}


We now split the plus or minus sign to obtain;


x=\frac{-3-\sqrt{73}}{4}


This implies that;


x=-2.89

Or

x=\frac{-3+\sqrt{73}}{4}


This will evaluate to;


x=1.39

Hence, the positive solution rounded to the nearest hundredth is

x \approx 1.39

6 0
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3 0
3 years ago
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EleoNora [17]

Answer:

C

Step-by-step explanation:

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