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Shtirlitz [24]
3 years ago
6

Complete the square for the expression x squared minus x. Then factor the trinomial.

Mathematics
1 answer:
lukranit [14]3 years ago
5 0
I don't think there is a solution because there is no equal sign. That problem does not make sense.

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A ball is thrown from the top row of seats in a stadium. The function h(t)=-16t^2+64t+80 gives the height, in feet, of the ball
Wewaii [24]

Answer:

<h3>5 seccs</h3>

Step-by-step explanation:

Given the modeled function of the height expressed as;

h(t)=-16t^2+64t+80

The ball hits the ground when h(t) = 0 (when the height is zero)

Substitute into the function and find t;

0 =-16t^2+64t+80

divide through by -16

0 = t²-4t-5

Factorize;

t²-4t-5 = 0

t²-5t+t-5 = 0

t(t-5)+1(t-5) = 0

(t+1)(t-5) = 0

t + 1 = 0 and t-5 = 0

t = -1 and t = 5

Time can't be negative

Hence it will take the ball 5secs before it hits the ground

7 0
3 years ago
Find the next item in the pattern. 2,5,8,11,14
Stels [109]

The next item in the pattern would be 17

5 0
3 years ago
Read 2 more answers
Ill give brainliest
Savatey [412]
C. For sure. Hope it helps
6 0
3 years ago
There are 20 families living in the Willbrook Farms Development. Of these families, 10 prepared their own federal income taxes f
ioda

Answer:

a) 1/2

b) 9/40

Step-by-step explanation:

Given

Total number of families living in Willbrook Farms Development = 20

Number of families preparing their own federal income taxes for last year = 10

Number of families for which taxes were prepared by a local professional = 7

Number of families for which taxes were prepared by H&R Block = 3

a) Probability of selecting a family that prepared their own taxes = 10/20 = 1/2

b) The probability of selecting two families, both of which prepared their own taxes

10/20 * 9/20 = 9/40

4 0
3 years ago
Can someone help me.me and my friends are at a loss
Ganezh [65]
From the number given is appears the rule is y = 2x + 1
This works for all three:
17 = 2(8) + 1
1 = 2(0) + 1
15 = 2(7)+1
6 0
3 years ago
Read 2 more answers
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