If a baseball player hits a baseball from 4 feet off the ground with an initial velocity of 64 feet per second, how long will it take the baseball to hit the ground? Use the equation h = −16t2 + 64t + 4.
Answers
then h(t) = 0 = -16t^2 + 64t + 4
divide both sides by -4
4t^2 - 16 t - 1 = 0
use the quadratic function
substitue a = 4, b = -16, c = -1
you will get t1 ≈ 0 and t2 ≈ 4
Answer: approx. 4 seconds.
Answer: 2 plus or minus the square root of 17 end root over 2
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Find the student’s error in solving the following inequality.31 < –5x + 6 25 < –5x –5 < x a. The student should have added 6 to both sides instead of subtracting it. b. The student divided 25/–5 incorrectly. c. The student should have switched the direction of the inequality sign to get –5> x for a final answer.
A.
S = 0, T = 6
B.
S = –4, T = –2
C.
S = –9, T = –12
D.
S = –10, T = –2
Answers
While we check all the given options, we will see that no option other then option D gives us the equal value of difference between R and S, and R and T; which doesn't makes the given value of S and T in option(s) A, B and C equidistant from R as given in the question. Thus, it gives us option D as the answer.
Mathematically-
Considering the option D only,
R - S = -6 - (-10) = -6 + 10 = 4
and, T - R = -2 - (-6) = -2 + 6 = 4
thus, R - S = T - R
Answers
Answers
Answer:
(x - 2) (x^2 + 3x^2 - 4x -2)
Step-by-step explanation:
y = –3x + 11
A.(6, -3)
B.(6, -7)
C.(-4, 19/2)
D.(5, -4)
Answers
They have given you y: -3x+11.
They have also given you an equation for you to substitute y into: 3x+2y=7.
Now, you can create the substituted problem.
3x + 2(-3x + 11 ) = 7
Use distributive property.
3x + -6x + 22 = 7
Add like terms.
-3x + 22 = 7
Subtract 22 from 7.
-3x = -15
Divide.
x = 5.
Now, that you have x, plug "5" back into the original equations or at least one of them to find your y.
I will do both to show you.
3(5) + 2y = 7
15 + 2y = 7
2y = -8
y = -4
You would get -4 with the other equation, too.
y = -3(5) + 11
y = -15 + 11
y = -4
Now, since you have x= 5, y= -4, that would be equivalent to (5, -4) which would be answer choice D.
*side note* because only one of the answer choices started with x being equivalent to y, you wouldn't need to go through finding y as the only possible answer choice could be D. However, it is always good to check and make sure you didn't do anything wrong with x by finding y. Also, I have done y for you not only in my benefit, but to show you what you would do if D wasn't so obvious when you only find x.
very expensive carnival). People entering Mr. Coldoff's more reasonably priced Terrifying
Twirling Tomato Tournament pay 2.2 x 103 dollars per ticket. How many times cheaper is
Mr. Coldoff's Twirling Tomato Tournament?
Answers
Answer:
the answer is multiple ............
Answers
find greatest common factor of 10 and 50
10=1,2,5,10
50=1,2,5,10,25,50
greatest common is 10
a=10
10(1)+10(5)=10(1+5)=10(6)=60