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jekas [21]
2 years ago
5

jack got the expression 7x+1 and then wrote his answer as 1+7x is his answer an equivalment expression how do you know

Mathematics
1 answer:
Ugo [173]2 years ago
6 0
The equation was just flipped around, it will equal the same no matter what.

I hope this helps!! :)
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A golfer attempts to hit a golf ball over a valley from a platform above the groun
leonid [27]

Answer: NO

Step-by-step explanation:

The functions that models the height of the ball is given as

h(t) = -5t2 + 40t + 100

Where

a = -5, b = 40, c = 100

The time the ball will reach the maximum height will be the vertex of the parabola. At the line of symmetry, the time t will be:

t = -b/2a

Substitute b and a into the formula above.

t = - 40 / -5 = 8

Substitute 8 for t in the function f(t)

h(t) = - 5(8)^2 + 40(8) + 100

h(t) = -5(64) + 40(8) + 100

Open the bracket

h(t) = -320 + 320 + 100

h(t) = 100

The maximum height of the ball is 100m

Given that the power lines is 185 metres above the ground. The golf ball will therefore not hit power lines because the maximum height the ball can go is 100 metres

3 0
3 years ago
What is the percent decrease from 95 to 68 round to the nearest percent
Setler79 [48]

The decrease is  (95-68) = 27 .

As a fraction, the decrease is  27/95  of the original amount.

To change any fraction to a decimal, do the division:

                            (27)  divided by  (95) = 0.2842...

To change any decimal to a percentage, move the

decimal point two places that ==> way:

                            0.2842...  =  28.42... %Answer:

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Determine whether the graphs of the given equations are​ parallel, perpendicular, or neither.
12345 [234]

Answer:

A. Perpendicular

CarryOnLearning

3 0
2 years ago
Answer If u dont know dont answerrrr.
Katen [24]

Answer:

what? i belive the answer is B

Step-by-step explanation:

4 0
2 years ago
Which relation is a functiona) {(2.4), (2,-7) (2,11), (2,-15)}
tia_tia [17]
D is a function  because  there are no repeated x values 

for example b is not a function because we have (0,-7) and (0,-9)
6 0
3 years ago
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