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3 years ago

2 times the sum of a number and 8 is equal to the difference of 10 and that number find the number

1 answer:

7 0

The equation would look like this
2 (x + 8) = 10 - x
First you distribute: 2x +16 = 10 - x
Next you isolate the variable by adding x to each side and subtracting 16 from each side: 3x = 10 - 16
Simplify: 3x = -6
Divide both sides by 3: x = -2

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In trapezoid EFGH, m∠HEF=(4x2+16)∘ and m∠GFE=(5x2+12)∘. Find the value of x so that EFGH is isosceles. HELP PLEASE!!

wolverine [178]

Answer:

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Step-by-step explanation:

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3 years ago

Eighth grade ) T.5 Pythagorean theorem: word problems 87U

Komok [63]

Answer:

The tree is 12 feet tall

Step-by-step explanation:

Let a represent the length of where the bird was sitting to the oak tree

let b represent the height of the tree

let c represent the length at which the bird flew

by pythagoras theorem

c²=a²+b²

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$b = \sqrt{ {c}^{2} - {a}^{2} }$

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$b = \sqrt{ {15}^{2} - {9}^{2} }$

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$b = \sqrt{144}$

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7 0

2 years ago

The length of a rectangle is stored in a double variable named length, the width in one named width. write an expression whose v

Mila [183]

<span>sqrt(pow(length, 2) + pow(width, 2))

</span>

7 0

3 years ago

I attached the math problem below and I hope u guys help me. Thxs to who's gonna answer!

vova2212 [387]

Answer:

Numbers | least to greatest | opposites | opposites least to greatest

1/4, -1/2 | -1/2, 1/4 | -1/4, 1/2 | -1/4, 1/2

2, -10 | -10, 2 | -2, 10 | -2, 10

0, 3 1/2 | 0, 3 1/2 | 0, -3 1/2 | -3 1/2, 0

-5, -5.6 | -5.6, -5 | 5, 5.6 | 5, 5.6

24 1/2, 24 | 24, 24 1/2 | -24 1/2 -24 | -24 1/2 -24

-99.9, -100 | -100, -99.9 | 99.9, 100 | 99.9, 100

-0.05, -0.5 | -0.5, -0.05 | 0.5, 0.05 | 0.05, 0.5

-0.7, 0 | -0.7, 0 | 0.7, 0 | 0, 0.7

100.02, 100.04 | 100.02, 100.04 | -100.02, -100.04 | -100.04, -100.02

Hope this helps you!!!!

8 0

3 years ago

Rewrite as a power of 10: 1/10

Yuliya22 [10]

Answer:

Step-by-step explanation:

You have to know how negative exponents "work" to understand this concept.

$\frac{1}{10}=10^{-1$ because if you want to make a negative exponent positive you put what the exponent is on under a 1. It follows then that you can go backwards from that and rewrite positive fractions with negative exponents.

4 0

3 years ago