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denis23 [38]
3 years ago
8

Identify the percent of change as increase or a decrease. 12in to 36in​

Mathematics
1 answer:
Llana [10]3 years ago
3 0

Answer:

Increased by 200%

Step-by-step explanation:

12 is 100%

36-12 = 24

and the increase total was 24 so this is 200%

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Trigonometric ratios​
const2013 [10]

Answer:

(√3+1.4)m

Step-by-step explanation:

By forming a right triangle, we can see that the angle of elevation is 30°.

In a 30-60-90 triangle, the side opposite the 30° is the other leg multiplied by 1/√3.

x= \frac{3}{\sqrt{3} } =\frac{3\sqrt{3} }{\sqrt{3}*\sqrt{3}  } =\frac{3\sqrt{3} }{3} =\sqrt{3}

The height of the pole is (√3+1.4)m

8 0
3 years ago
Use the FOIL pattern to find the product.
blsea [12.9K]

Answer:

B.

Step-by-step explanation:

First

Outer

Inner

Last

3x*3x=9x^2

3x*-8=-24x

6*3x=18x

6*-8=-48

9x^2-24x+18x-48

9x^2-6x-48

7 0
4 years ago
The ratio of hydrogen to oxygen atoms in water molecules is 2 to 1. If the beaker of water contained 4.1 moles of oxygen atoms,
Ad libitum [116K]

Answer:

8.2

Step-by-step explanation:    

We have been given that the ratio of hydrogen to oxygen atoms in water molecules is 2 to 1.      

We can represent this information as: \frac{\text{Hydrogen}}{\text{Oxygen}} =\frac{2}{1}

Let x be amount of moles of hydrogen atoms in water beaker. The proportion of hydrogen and oxygen moles will be same in water beaker.

Upon substituting our values in above proportion we will get,

\frac{2}{1} =\frac{x}{4.1}            

x=2\times 4.1              

x=8.2    

Therefore, the moles of hydrogen atoms in water beaker will be 8.2.

5 0
3 years ago
Which number sentence is true?
IRINA_888 [86]

Answer:

D is the true answer.

Step-by-step explanation:

0.006262 is smaller than 0.062

7 0
3 years ago
The area of a square region is 169 m2 (square)
LUCKY_DIMON [66]

Answer:

A. 13m

Step-by-step explanation:

To find the area of a square you multiply Length by the Height. Since squares have equal length sides the number has to be the same for the length and the height.

13 x 13 = 169

\sqrt{169} = 13

4 0
3 years ago
Read 2 more answers
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