A^2 + b^2 = c^2
a^2 + 5^2 = 8^2
a^2 + 25 = 64
a^2 = 64 - 25
a^2 = 39
a = 6.2449 = 6.2
Please mark me as brainliest! :)
Answer: 40:12:30
Step-by-step explanation:
To simplify this, look for a common divisible number, which is 25
Then divide all through by 25
1000/25:300/25:750/25
=40:12:30
I hope this helps
Answer: 9a-9b-6
7(3a−2b)+5b−3(4a+2)
Distribute:
7(3a−2b)+5b−3(4a+2)
=(7)(3a)+(7)(−2b)+5b+(−3)(4a)+(−3)(2)
=21a+−14b+5b+−12a+−6
Combine Like Terms:
=21a+−14b+5b+−12a+−6
=(21a+−12a)+(−14b+5b)+(−6)
=9a+−9b+−6
Answer:
Between -12 and -13, decimal estimate: -12.2
Step-by-step explanation:
First let's disregard the negative sign, and focus on . The smallest square below it is , or 144. The greatest square right above it is , or 169.
Now we know that is somewhere between 12 and 13. Likewise is between -12 and -13. If 12.5 is the square root of 150, it is too high, so we reduce it to 12.2 to 12.3.
Then we can just negate our answer, since we are looking for , to get about -12.2.
Answer:
Step-by-step explanation:
sin(157.5°) is in quadrant ll , meaning sin(157.5°) is greater than 0 , so we take positive square root of sin(157.5°)
sin(157.5) =