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IRINA_888 [86]
3 years ago
14

Which expressions are equivalent to 16x^2- 36

Mathematics
1 answer:
Eddi Din [679]3 years ago
4 0
4(2x+3)(2x-3) is the answer
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Suppose that a survey was taken and it showed that 18% of online
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Surveyed shoppers = 2700
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6 0
2 years ago
A seesaw has a plank of 4.5 m long which is supported by a pivot at its center and moves in a vertical plane above the pivot. If
andreev551 [17]

Since the pivot pillar is 1 m above the ground, maximum angle can the seesaw beam move is 26.39°

The maximum angle can be gotten using trigonometric ratios answer the question,

<h3>What are trigonometric ratios?</h3>

Trigonometric ratios are the ratios of the sides of a triangle.

<h3>What are angles?</h3>

Angles are a measure of rotation or bearing.

Given that the seesaw plank is 4.5 m long and the pivot pillar is 1 m above the ground, when the seesaw is at maximum angle, it forms a right angled triangle with the ground.

It also forms a smaller similar triangle with the same maximum angle Ф which is gotten from the trigonometric ratio

sinФ = h/L where

  • h = height of pivot pillar above ground = 1 m and
  • L = length of midpoint of plank = 4.5m/2 = 2.25 m
<h3>Maximum angle seesaw beam can move</h3>

So, Ф = sin⁻¹(h/L)

= sin⁻¹(1 m/2.25 m)

= sin⁻¹(1/2.25)

= sin⁻¹(0.4444)

= 26.39°

So, maximum angle can the seesaw beam move is 26.39°

Learn more about maximum angle here:

brainly.com/question/26870667

#SPJ1

8 0
1 year ago
Using exponents, what is the simplified form of 12x 6x7 оа 23 Ob 2x3 ос 63 6x 6x3​
Dovator [93]

12x^5 / 6x^2 = 2x^3

Answer choice B is correct.

6 0
3 years ago
Solve the following equations.<br> 3 ⋅ 62^x = 648
gayaneshka [121]

Answer:

x=1.56861

Step-by-step explanation:

62^x=648

By using logarithms it becomes easier to solve this question because of the properties they have

From the property of logarithms

loga^x=xloga

Take logarithms on both sides

log62^x=log648

\Rightarrow xlog62=log648

\Rightarrow x=\frac{log648}{log62}

\Rightarrow x=1.56861

x=1.56861

7 0
3 years ago
How much carbon dioxide is emitted from using a 1500 watt dryer for 8 hours every
slavikrds [6]

ERROR!ERROR!ERROR!ERROR!

5 0
3 years ago
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