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zysi [14]
3 years ago
7

Anthony has a cup full of nickels and dimes worth $6.80. There are 82 coins all together.

Mathematics
1 answer:
poizon [28]3 years ago
4 0

Answer:

b

Step-by-step explanation:

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Find the length of the third side. If necessary, write in simplest radical form.
Mazyrski [523]

Answer:

\boxed {\boxed {\sf 8}}

Step-by-step explanation:

This triangle has a small square, which represents a right angle. Therefore, we can use the Pythagorean Theorem.

a^2+b^2=c^2

Where <em>a</em> and <em>b </em> are the legs of the triangle and <em>c</em> is the hypotenuse.

In this triangle, 7 and √15 are the legs, because these sides make up the right angle. The unknown side is the hypotenuse, because it is opposite the right angle. So, we know two values:

a= 7 \\b= \sqrt{15}

Substitute these values into the formula.

(7)^2+(\sqrt{15})^2=c^2

Solve the exponents.

  • (7)²= 7*7=49

49+ (\sqrt{15})^2=c^2

  • (√15)²=√15*√15=15

49+15=c^2

Add.

64=c^2

Since we are solving for c, we must isolate the variable. It is being squared and the inverse of a square is the square root. Take the square root of both sides.

\sqrt{64}=\sqrt{c^2} \\\sqrt{64}= c\\8=c

The third side length is <u>8.</u>

6 0
3 years ago
Read 2 more answers
What operation do you use to convert 50 cups to gallons?
zzz [600]
Division can be used. For example

50/16=3.125gallons

or you could use multiplication

50*1/16=3.125gallons


5 0
3 years ago
Read 2 more answers
Find the thirtieth term of the following sequence.
Nikolay [14]
You are adding 2 each time.

You are trying to find the 30th term, in which 4 are shown. 

Subtract 4 from 30

30 - 4 = 26

Multiply 26 with 2

26 x 2 = 52

Add 52 to the last number given (0)

0 + 52 = 52

52 is your answer

hope this helps
4 0
3 years ago
What is the simplified form of the quantity of x plus 3, all over 4 + the quantity of x plus 2, all over 4?
Naily [24]
   x+3
4+(x+2)
     4
or
x+3 *   1
x+6     4

  x+3
4x+24
4 0
3 years ago
What is the area of the octagon? rectangular shaped
V125BC [204]

Answer:

A=2(1+2)a2=2·(1+2)·22≈19.31371

Step-by-step explanation:

hope this helps!

5 0
3 years ago
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