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Naily [24]
3 years ago
8

A ladder is leaning against the house. The base of the ladder is 9 feet from the base of the house. The ladder is 20 feet long.

How high does the ladder reach on the house
Mathematics
2 answers:
Gre4nikov [31]3 years ago
8 0
The answer is 17.86057
zvonat [6]3 years ago
4 0

Answer:

17.86057

Step-by-step explanation:

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Evaluate 4(a2 + 2b) - 2b when a = 2 and b = –2
amid [387]
First you simply have to substitute 2 in replace of all the a's, and -2 in replace of all of the b's

4((2)2+2(-2))

Then you want to follow the order of operations, PEMDAS (Parantheses-Exponent-Multiplication-Division-Addition-Subtraction), and multiply within the parantheses.

4(4+(-4))

Next you will add within the parantheses (So add the 4 and -4 together)

4(0)

Lastly multiply

0

Your answer is 0

Hope this helps!
5 0
3 years ago
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Super easy 1 question (8) just being lazy
Snezhnost [94]

is this a school qustion? if not

cool me too

6 0
3 years ago
What is 174 dived by 6 and how u solved it
Minchanka [31]

Answer:

Step-by-step explanation:

187 divided by 7 is 6.5

8 0
3 years ago
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What is the best approximation of the length of segment QS? (Note: cos 80° = 0.17)
matrenka [14]

Answer: QS=11.8cm


Step-by-step explanation:

1. You have the following information:

- The lenght of RS is 2 centimeters.

- The angle m∠S=80°.

- Cos80°=0.17

2. Therefore, you can calculate the lenght of the segment QS as following:

cos80=\frac{adjacent}{hypotenuse}

adjacent=2cm\\hypotenuse=QS\\cos80=0.17

3. Substitute values and solve for QS:

0.17=\frac{2cm}{QS}\\QS=\frac{2cm}{0.17} \\QS=11.76cm

4. To the nearest tenth:

QS=11.8cm

6 0
3 years ago
20% of 34.69 (show work) (will give brainliest)
Delicious77 [7]
6.938
Discount = Original Price x Discount %/100
Discount = 34.69 × 20/100
Discount = 34.69 x 0.2
You save = $6.94 ~
5 0
3 years ago
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