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Temka [501]
3 years ago
12

Please answer and explain how you received that answer, these are the three problems I had trouble with out of 18

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
5 0
9) x.14 = 6.26 ==> 14x=156 ==> x=11.1

12) OAB = Right Triangle : (27+24)² = 24² + AB² (Pythagoras)
 ==> 51² =24² + AB²  ==> 2,601 = 576 + AB² ==> AB² = 2,601 - 576 = 2,025
==> AB² = 2015 AND AB =√2025 = 45
Sorry I can't read the last page
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What is the value of x?<br> 12 units<br> 15 units<br> 20 units<br> 25 units
Firlakuza [10]

Answer:

The answer is 12 units.

Step-by-step explanation:

Looking at the figure we see that

(1).9^2+x^2=SR^2

(2).16^2+x^2=RQ^2 and

(3).SR^2+RQ^2=(9+16)^2

Now from equations (1) and (2) we have values for SR^2 and RQ^2, so we put those into the equation (3) and get:

9^2+x^2+16^2+x^2=(9+16)^2

\rightarrow 337+2x^2=625

\boxed{\therefore x= 12.}

Therefore the answer is 12 units.

6 0
3 years ago
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A salesperson earned a salary of $12000 per year plus 5% commission on sales of $100000. What is his total income
Papessa [141]

If im doing right....

100,000*.5=50,000

Then 12,000+50,000=62,000 per year.

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3 0
3 years ago
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storchak [24]
So first we divide 140 by 7 because our ratio is a total of 7 dollars to get 20
So we multiply both sides of the ratio by 20 to get a ratio of 40:100
We can check our answer and it is right because 100+40=140
3 0
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I need the answer asap
eimsori [14]

Answer:

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Step-by-step explanation:

you have to put the value from 6-94 in n the given equation 5n+7.

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