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Tamiku [17]
3 years ago
10

Really stuck on this one

Mathematics
1 answer:
inn [45]3 years ago
4 0

Answer:

12 in.

Step-by-step explanation:

You have to use the Pythagorean theorem for this problem. Since we are solving for DE, we do:

5 squared + b squared = 13 squared

25 + b squared = 169

Isolate the b:

25 - 25 + b squared = 169 - 25

b squared = 144

Find the square root of 144 = <u>12</u>

<u>(The formula for the Pyathagorean theorem is a squared + b squared = c squared) </u>

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Solve for X<br><br> Pls help if you can
Lostsunrise [7]

Answer:

x+8

Step-by-step explanation:

144-24 =120

120/15=8

x=8

6 0
3 years ago
Read 2 more answers
1<br>What is the value of x in the equation 1/3x-2/3=-18?​
Alja [10]

Answer:

x = -52

Step-by-step explanation:

1/3x-2/3=-18

Multiply each side by 3 to clear the fractions

3(1/3x-2/3)=-18*3

x - 2 = -54

Add 2 to each side

x-2+2 = -54+2

x = -52

6 0
3 years ago
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Write 6×10 to the power of 4 in standard form!<br> Please include an explanation!<br> Thanks!
lidiya [134]

Answer:

60,000

Step-by-step explanation:

Evalute

6 x 10*4

6 x 10,000

60,000 is the standard form :)

3 0
3 years ago
Read 2 more answers
Anna had $54 in her purse. She bought a book for $26.34 and a book marker for $1.27. Anna’s mom then gave her $10 for completing
jekas [21]

Answer:

Anna has $36.39 dollars.

Step-by-step explanation:

All we have to do is subtract

54 - (26.34 + 1.27) =

54 - 27.61 =

36.39

So, the answer is 36.39

Hope this helps! :)

3 0
3 years ago
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HELP HELP HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Arrange the functions in ascending order, starting with the function t
san4es73 [151]
If x is squared, that will be biggest by the end because it gets bigger the quickest. x^2 + 4 is always 4 greater than x^2, no matter what the value of x is.

5x+3 is always 3 greater than 5x also.

Besides that, you can rank them based on their slopes (5x < 7x < 8x, etc.)

So,
5x
5x + 3
7x
8x + 3
x^2
x^2 + 4

You can also just say “eventually” means that they’re asking to find the values of each when x is really big. so just choose x=100, and plug that into each one.

So, to check that order:
5(100) = 500
5(100) + 3 = 503
7(100) = 700
8(100) + 3 = 803
(100)^2 = 10,000
(100)^2 + 4 = 10,004

Those are in ascending order, so that must be the right order!
6 0
4 years ago
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