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Vitek1552 [10]
4 years ago
14

Help??? ( show your work)

Mathematics
1 answer:
tresset_1 [31]4 years ago
3 0
Pythagorean Theorem Formula: a² + b² = c²

9² + 13² = x²
81 + 169 = x²
250 = x²
square root of 250 = 15.8
15.8 is already rounded.

8² + b² = 12²
64 + b² = 144
144 - 64 = 80
square root of 80 = 8.9
8.9 is already rounded.

10² + 12² = x²
100 + 144 = x²
244 = x²
square root of 244 = 15.6
15.6 is already rounded.

I am currently working on this in my class so I have this fresh in my mind.
Hope this Helps!!
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Solve the equation x + 0.7 = 1 - 0.2x in two different ways.Then check your answer.Show your work!
expeople1 [14]
Simplifying
x + 0.7 = 1 + -0.2x

Reorder the terms:
0.7 + x = 1 + -0.2x

Solving
0.7 + x = 1 + -0.2x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '0.2x' to each side of the equation.
0.7 + x + 0.2x = 1 + -0.2x + 0.2x

Combine like terms: x + 0.2x = 1.2x
0.7 + 1.2x = 1 + -0.2x + 0.2x

Combine like terms: -0.2x + 0.2x = 0.0
0.7 + 1.2x = 1 + 0.0
0.7 + 1.2x = 1

Add '-0.7' to each side of the equation.
0.7 + -0.7 + 1.2x = 1 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + 1.2x = 1 + -0.7
1.2x = 1 + -0.7

Combine like terms: 1 + -0.7 = 0.3
1.2x = 0.3

Divide each side by '1.2'.
x = 0.25

Simplifying
x = 0.25

I only know 1 way.
6 0
4 years ago
Sketch y= -2x - 4x - 5
Vikki [24]
I think it is...... -6x-5
8 0
4 years ago
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A box is 16 cm long 10 cm wide and 19 cm high what is its volume ?
Advocard [28]

Answer:

3040cm

Step-by-step explanation:

you simply multiply 10 by 19 to get 190 than do 190 times 16 where u would go 6 times 0 =0 6 times 9 =54 leave the 4 carry the 5 than 6 times 1 is 6 but add the 5 to get 1140 than for the 1 simply put a placeholder 0 than just put 190 since you're multiplying by one to get 3040

4 0
3 years ago
PLEASE I need this fast
Tatiana [17]
I love the word of GOD so much that I agree with jwgirly the answer to the question is true.                                         1
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8 0
4 years ago
What is the value of x when y equals 66?<br><br> y=0.985897x+0.194185
Tcecarenko [31]

Answer:

x = 66.74715005725

Step-by-step explanation:

First you bring over the added variable. 0.194185, and subtract it from 66. Then you divide your difference by 0.985897. This gives you 66.74715005725

6 0
3 years ago
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