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igor_vitrenko [27]
3 years ago
8

If b

Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0

Answer:

46.2^o

Step-by-step explanation:

<u><em>The correct question is</em></u>

If b = 9 and c = 13, what is the measure of ∠A? (round to the nearest tenth of a degree)

The picture in the attached figure

we know that

In the right triangle ABC

cos(A)=\frac{b}{c} ---> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

cos(A)=\frac{9}{13}

using a calculator

A=cos^{-1}(\frac{9}{13})=46.2^o

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Both Amy and Ed travel 100 miles to their destination. They begin at the same
Mandarinka [93]

Answer:

Since there are two cars, each car, then, drove 104/2 = 52 miles. But one car is traveling 8 miles per hour faster.

Step-by-step explanation:

6 0
3 years ago
Please help me out if you can :))))))))) !!!!!!!!!!!!!!!!!!!!!!!!! (no links as answers)
Westkost [7]

Answer:

√2

Step-by-step explanation:

Angle ratio = 45 : 45 : 90

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6 0
3 years ago
Select the exclusion that fits best with this problem.
nalin [4]

Answer:

\frac{1}{2y-2y^2}, y\neq 1

Step-by-step explanation:

observe by factorization and cancelation

\frac{y^2+y+1}{-2y(y^3-1)}=\frac{y^2+y+1}{-2y(y-1)(y^2+y+1)}\\=\frac{1}{-2y(y-1)}\\=\frac{1}{2y-y^2}

7 0
3 years ago
Jaidee spent half of her weekly allowance on clothes. To earn more money her parents let her wash a dog for $9. What is her week
dolphi86 [110]

Answer:

14

Step-by-step explanation:

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3 0
3 years ago
Number 6-9 I don't know it
Bogdan [553]
This is not 4 different problems.
It's the same problem 4 times.

The Rule:  To find the unit rate, divide the price by the quantity.
                 Just like you wrote in pencil next to  #6  and  #8 .
_________________________________

#6).  Look at The Rule up above.

       Unit price for Brand A:    $4.80 /  32 oz  =  15¢ per oz.
       Unit price for Brand B:    $5.76 /  48 oz  =  12¢ per oz.
       Unit price for Brand C:  $17.92 / 128 oz  =  14¢ per oz.

#7). 
IF the price is the ONLY thing that's different about them, then Brand-B 
is the best choice, because it's the lowest price per ounce.

BUT ... there may be other things to compare:
Do they all get your dishes equally clean ?
Do they all rinse off equally easily ?
Do they all smell the same ?
Do any of them attract bugs when they stand around ?
Do any of them spoil when they stand around open ?

You may want to consider other things besides the price
when you're deciding which detergent to buy.

#8).  Look at The Rule up above again.

       Unit rate for Regular size = $3.36 / 16 oz  =  21¢ per oz.
       Unit rate for Family size  =  $7.60 / 40 oz  =  19¢ per oz.

<span>#9).
</span>Again ... IF the cost is the ONLY thing to think about, then the Family size
is the better buy, because it costs 2¢ less for every ounce. 
But there may be other things to consider.  Does the peanut butter from
both sizes taste the same ?  Does one taste better ?  Is the Family size
so big that it might be hard to handle, and you may drop it by accident ? 

4 0
4 years ago
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