Answer: 15.7 minutes
Step-by-step explanation:
Let x be the time in the beginning (in minutes).
Given: The track team is trying to reduce their time for a relay race.
First they reduce their time by 2.1 minutes.
Then they are able to reduce that time by 10
If their final time is 3.96 minutes, then
x-t1-t2= 3.6
x= 3.6+ t1+ t2
x= 3.6+ 2.1+ 10
x= 15.7
Hence, their beginning time was 15.7 minutes.
Answer:
<A = 26°
Step-by-step explanation:
4x - 30 + 4x - 14 = 180
Supplementary angles sum together to make 180
=> 4x + 4x = 16x
=> -30-14 = -44
16x = 180+44
16x = 224
x = 224/16
x = 14°
4(14) - 30 = 26°
Answer:
I think its 50 okaygdvd dbdur
-5x^4(-3x^2 + 4x -2)
Multiply the number on the outside by each number inside the parentheses:
-5x^4 x -3x^2 = 15x^6
-5x^4 x 4x = -20x^5
-5x^4 x -2 = 10x^4
Now combine them in order of exponents:
15x^6 - 20x^5 + 10x^4
