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Nuetrik [128]
3 years ago
15

An egg is dropped from a height of 90 ft. If acceleration due to gravity is –16 ft/s2 and initial velocity is 0 ft/s, approximat

ely how long will it take for the egg to reach the ground? h(t) = at2 + vt + h0 1.9 s 2.4 s 9.7 s 40.7 s
Mathematics
2 answers:
kaheart [24]3 years ago
8 0

Answer:

B

Step-by-step explanation:

I answered it on edge

stira [4]3 years ago
6 0
2.4 s B ( i hope this help)
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The Students' Conjectures Emily and Zach have two different polynomials to multiply: Polynomial product A: (4x2 – 4x)(x2 – 4) Po
noname [10]

Complete Question:

Emily and Zach have two different polynomials to multiply: Polynomial product A: (4x2 – 4x)(x2 – 4) Polynomial product B: (x2 + x – 2)(4x2 – 8x) They are trying to determine if the products of the two polynomials are the same. But they disagree about how to solve this problem.

Answer:

A = B

Step-by-step explanation:

<em>See comment for complete question</em>

Given

A: (4x^2 - 4x)(x^2 - 4)

B: (x^2 + x - 2)(4x^2 - 8x)

Required

Determine how they can show if the products are the same or not

To do this, we simply factorize each polynomial

For, Polynomial A: We have:

A: (4x^2 - 4x)(x^2 - 4)

Factor out 4x

A: 4x(x - 1)(x^2 - 4)

Apply difference of two squares on x^2 - 4

A: 4x(x - 1)(x - 2)(x+2)

For, Polynomial B: We have:

B: (x^2 + x - 2)(4x^2 - 8x)

Expand x^2 + x - 2

B:(x^2 + 2x - x - 2)(4x^2- 8x)

Factorize:

B:(x(x + 2) -1(x + 2))(4x^2- 8x)

Factor out x + 2

B:(x -1) (x + 2)(4x^2- 8x)

Factor out 4x

B:(x -1) (x + 2)4x(x- 2)

Rearrange

B: 4x(x - 1)(x - 2)(x+2)

The simplified expressions are:

A: 4x(x - 1)(x - 2)(x+2) and  

B: 4x(x - 1)(x - 2)(x+2)

Hence, both polynomials are equal

A = B

3 0
3 years ago
Find the area please and will make brainliest
puteri [66]
To find the area of the trapezoid, we only need the quantities a1 (long base), a2(short base) and h(height).

Area=(1/2)(a1+a2)*h
=(1/2)(9.9+4.7)(5.6)
=40.88 mm &sup2;

Not sure what's expected to give for "type".  Perhaps trapezoid or trapezium.

4 0
3 years ago
Which table represents a linear function?
svp [43]

Answer:

3

Step-by-step explanation:

x 1,2,3,4

y-3,-5,-7,-9

y =  - 3 - (x - 1) \times 2

6 0
2 years ago
Read 2 more answers
1/3 cube root 27 &lt;=w
Rainbow [258]

3³ = 27

∛27 = 3

1/3 of 3 = 1

x\geq1

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3 years ago
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100 points!!
VashaNatasha [74]

Answer:

Step-by-step explanation:

4 0
3 years ago
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