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melisa1 [442]
3 years ago
7

Help pleaseee, no links!

Mathematics
1 answer:
sashaice [31]3 years ago
3 0
A right triangle follows the Pythagorean theorem: a^2 + b^2 = c^2

Let’s work out the problems
1. 20^2 + 72^2 = 75^2
40 + 5184 = 5625
False

2. 40^2 + 74^2 = 85^2
1600 + 5476 = 7225
False

3. 45^2 + 60^2 = 75^2
2025 + 3600 = 5625
True

The correct answer is (45, 60, 75)
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What is (3×3)+(42÷7+6) equal to?
Zanzabum
Its is equal to 21 because 3x3 is 9 42/7 is 6 then 6+6=12 so then 9 +12=21
4 0
4 years ago
What is the exact value of tan(pi/4)?
tatyana61 [14]

1

The exact value of tan(π4) tan ( π 4 ) is 1 .

6 0
3 years ago
Find the perimeter and round to the nearest tenth
tekilochka [14]

Answer:

Perimeter = 12.0 m

Step-by-step explanation:

Perimeter = AB + AC + BC

AB = 5 m

B = 53°

Use trigonometric functions to find AC and BC respectively.

✔️Find AC:

Reference angle = 53°

Opposite side length = AC

Hypotenuse = 5 m

Apply SOH, which is:

Sin 53 = Opp/Hyp

Sin 53 = AC/5

5*Sin 53 = AC

AC = 3.99317755 ≈ 4 m

✔️Find BC:

Reference Angle = 53

Hypotenuse = 5 m

Adjacent = BC

Apply CAH, which is:

Cos 53 = Adj/Hyp

Cos 53 = BC/5

5*Cos 53 = BC

BC = 3.00907512 ≈ 3.0 m

✔️Perimeter = 5 + 4 + 3 = 12.0 m

3 0
3 years ago
A car salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of ​$16.
mr_godi [17]

10%

since he works 40 hours per week and gets $16 an hour, that would be 16 * 40 which is 640, so that means he needs a commission rate of 10% as 10% of 6400 is 640.

hope this is helpful!

7 0
3 years ago
What is the absolute value of |4n-1|= -6
laiz [17]
Ok, so the first thing you would do is find the absolute value of the first set of numbers which would be 4n-1. Then you would start to simplify the whole equation using sadmep. You should add 1 and divide by 4.
3 0
3 years ago
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