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padilas [110]
3 years ago
10

Factor completely 25x2-144

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0

Answer:

Step-by-step explanation:

-94

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BRAINLIEST!!!<br> 11. Solve the inequality and graph the solution on a number line.
PilotLPTM [1.2K]

Answer:

y≤-1/3 (fraction)

And on the number line it will start from -1/3 (-0.333) and go less than -1/3 ( to the left, and it will be shaded

Step-by-step explanation:

First we expand the brackets, making it -15y+12≥17

Then we move 12 to the other side, making it negative, -15y≥17-12

Simplify, -15y≥5

Then we divide on both sides to isolate y, flipping the greater than sign to less than because when you divide or multiply by a negative number, the sign flips. y≤5/-15

Then we simplify by dividing the fraction by 5, making it -1/3. y≤-1/3

If you have any doubts, inform me

7 0
3 years ago
Read 2 more answers
Use slopes and y-intercepts to determine if the lines 6x+y=−1 and −2x−5y=1 are parallel.
kobusy [5.1K]

Answer:

The two lines are not parallel.

Step-by-step explanation:

Every linear equation follows this structure:

y = mx + b

y is the y value

x is the x value

m is the gradient/slope of the line

b (or sometimes c) is the y-intercept of the line

Firstly, we have to get the y term on one side by itself.

6x + y = -1

-6x        -6x

y = -6x - 1

-2x -5y = 1

+2x         +2x

-5y = 2x + 1

Secondly, we make it so the y term is just the y value.

The first equation is already like this, so we don't need to do anything to that.

-5y = 2x + 1

÷ -5  ÷ -5

y = (2x + 1) / -5

This can be expanded and simplified to:

y = -2/5x - 1/5

Thirdly, we have to compare the slopes and y-intercepts.

y = -6x - 1

y = 2/5x - 1/5

If the slopes are the same and the y-intercepts are different, they are parallel. However, the slopes are different, therefore they are not parallel.

7 0
3 years ago
Samantha threw an apple out of a window. The equation -16t^(2)+120=y can be used to represent the apple's height above the groun
exis [7]
Check the picture below, y = 0 when that happens

\bf -16t^2+120=0\implies 120=16t^2\implies \cfrac{120}{16}=t^2\implies \cfrac{15}{2}=t^2&#10;\\\\\\&#10;\sqrt{\cfrac{15}{2}}=t

bear in mind the square root would give us a +/- roots, however, since this is seconds, a negative unit would be unfeasible, thus we only used the positive root from it.

4 0
3 years ago
Factor the expression completely
Anastaziya [24]
25c - 5

Simplify all of the answer choices & see which one is correct.

a) 5(5c - 1)

25c - 5

A) IS CORRECT.

b) 5(20c + 1)

100c + 5

B IS INCORRECT.

c) 5(5c)

25c

C IS INCORRECT.

d) 5(c -1 )

5c - 5

D IS INCORRECT.

Therefore, the correct answer is a) 5(5c - 1)

~Hope I helped!~
7 0
3 years ago
Read 2 more answers
I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
lesya [120]

Answer:

20x3.14=62.8 62.8x10=628 Volume=628inches

Step-by-step explanation:

Plz give me brainlist

6 0
3 years ago
Read 2 more answers
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