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Lyrx [107]
3 years ago
9

Can someone help me my grade are bad

Mathematics
2 answers:
Likurg_2 [28]3 years ago
8 0

Answer:

8.31

Step-by-step explanation:

Using the Pythagorean Theorem:

a^2+b^2=c^2

10^2+b^2=13^2

100+b^2=169

b^2=69

b = \sqrt{69}

b = 8.306623863

The side length for x, rounded to the nearest hundredths, would be 8.31.

professor190 [17]3 years ago
3 0

Answer:

<em>x</em><em>=</em><em>√</em><em>1</em><em>3</em><em>^</em><em>2</em><em>-</em><em>1</em><em>0</em><em>^</em><em>2</em>

<em>x</em><em>=</em><em>√</em><em>1</em><em>6</em><em>9</em><em>-</em><em>1</em><em>0</em><em>0</em>

<em>x</em><em>=</em><em>√</em><em>6</em><em>9</em>

<em>x</em><em>=</em><em>8</em><em>.</em><em>3</em><em>0</em><em>6</em>

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Evaluate the equation 4K-10/k=8
solong [7]

Answer:

k = 1 + sqrt(7/2) or k = 1 - sqrt(7/2)

Step-by-step explanation:

Solve for k over the real numbers:

4 k - 10/k = 8

Bring 4 k - 10/k together using the common denominator k:

(2 (2 k^2 - 5))/k = 8

Multiply both sides by k:

2 (2 k^2 - 5) = 8 k

Expand out terms of the left hand side:

4 k^2 - 10 = 8 k

Subtract 8 k from both sides:

4 k^2 - 8 k - 10 = 0

Divide both sides by 4:

k^2 - 2 k - 5/2 = 0

Add 5/2 to both sides:

k^2 - 2 k = 5/2

Add 1 to both sides:

k^2 - 2 k + 1 = 7/2

Write the left hand side as a square:

(k - 1)^2 = 7/2

Take the square root of both sides:

k - 1 = sqrt(7/2) or k - 1 = -sqrt(7/2)

Add 1 to both sides:

k = 1 + sqrt(7/2) or k - 1 = -sqrt(7/2)

Add 1 to both sides:

Answer: k = 1 + sqrt(7/2) or k = 1 - sqrt(7/2)

4 0
2 years ago
How much Work is used when 25N of force is done over 100m?​
murzikaleks [220]

Step-by-step explanation:

we know that

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4 0
2 years ago
Can someone help me plz
Musya8 [376]

Answer:

B

Step-by-step explanation:

lets say the cost for a pound is 2$

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4 0
3 years ago
Justify conclusion on why 2 ounces of ketchup is ok to use when eating potatoe wedges
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According to the American Heart Association, women should only have about 25 grams of sugar per day. In 100g of ketchup there would be about 22g grams of sugar. If you were to eat roughly 60g of ketchup, you'd only be digesting about 13.2 grams of sugar. Now, potato wedges could also contain sugar, but you haven't stated how many grams or kilograms of potato wedges you'd be eating, so I wouldn't be able to tell you whether your meal contains too much sugar.
4 0
3 years ago
HELP QUICK PLEASE I BEG Grace invested $14985 in an account paying an interest rate of 9% compounded
azamat
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i think
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