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Digiron [165]
3 years ago
11

Find the area of the triangle with A =63°, b = 9 feet, and c =7 feet. Round to the nearest tenth.

Mathematics
2 answers:
Paha777 [63]3 years ago
6 0

Answer: 28.1ft^2 so it’s C

evablogger [386]3 years ago
4 0
The answer should be 90
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jenyasd209 [6]

Answer:

$1615.05

Step-by-step explanation:

First the cost. We know that tuition per credit hour is 113.67 and there is a flat fee of 660. This can be represented by 113.67h + 660, where h is equal to the number of credit hours.

Next, the amount paid. There are two constants of 350 and 400 already there. We can represent the remaining amount that needs to be paid by another variable, x.

Now, the cost needs to be equal to the amount you pay. We can replace h with 15 for 15 hours and solve for x.

113.67h + 660 = 350 + 400 + x

113.67(15) + 660 = 350 + 400 + x

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3 years ago
Mary Sue and Betty have 603 necklaces altogether. Mary Sue has 115 more necklaces than Betty. How many necklaces does Betty have
Blizzard [7]

Let Mary Sue have m necklaces and Betty have b necklaces.

And they have 603 necklaces altogether, that is

m + b =603

And Mary Sue has 115 more necklaces than Betty, that is

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Substituting this value in first equation we will get

b+115+b=603

Subtracting 115

2b= 488

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So Betty have 244 necklaces .

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Answer:

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Step-by-step explanation:

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xd

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