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masya89 [10]
2 years ago
11

What expression is represented in the algebra tiles?

Mathematics
1 answer:
Korolek [52]2 years ago
6 0
2x^2+2xy+2x
The ^ means exponent
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A boulder falls off the top of a cliff during a storm. The cliff is 90 feet high.
andreev551 [17]

Answer:

It will take the boulder approximately 4.28 seconds to hit the road

Step-by-step explanation:

The given height of the cliff from which the boulder falls, h = 90 feet

The equation that can be used to find the time it takes the boulder to fall is h = u·t + (1/2)·g·t²

Where;

h = The height of the cliff = 90 ft.

u = The initial velocity of the boulder = 0 m/s (The boulder is assumed to be at rest when it falls)

g - The acceleration due to gravity ≈ 9.81 m/s²

t = How long it will take for the boulder to hit the road below

Plugging in the values gives;

90 = 0 × t + (1/2)×9.81×t² = 4.905·t²

∴ t = √(90/4.905) ≈ 4.28

The time it takes the boulder to hit the road, t ≈ 4.28 seconds.

7 0
2 years ago
Would it be 1/5 ?? i'm not sure how to do probability
Sidana [21]

Answer:

Choice A

Step-by-step explanation:

5 red socks, 2 white socks, 3 blue socks = 10 socks


1 st sock red : 5 / 10

2nd sock red : 4/9

we didn't put the sock back

a pair of red socks

5/10 * 4/9 = 20/90 = 2/9



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3 years ago
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Arlecino [84]

Answer:

y=x*7

Step-by-step explanation:

63=9*7

28=4*7

14=2*7

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7 0
3 years ago
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Write a linear function with the values f(-1)=8 and f(5)=6
lukranit [14]
(-1,8) and (5,6) are points on the line.
Slope of line = (8-6)/(-1-5) = 2/(-6) = -⅓
y-6 = -⅓(x-5)
y = -⅓x + 5/3 + 6 = -⅓x + 7⅔
3 0
3 years ago
Which of the following properties is represented by (x + y)(2 + z) = 2(x +y) + z(x + y)?
cestrela7 [59]

Answer:

Distributive property

Step-by-step explanation:

The 2 is distributed over the  parentheses (x + y) the the z is also.

3 0
2 years ago
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