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3 years ago

I need help with the area of this

Mathematics

1 answer:

Anarel [89]3 years ago

7 0

Answer:

14 inches

Step-by-step explanation:

If you use the formula shown and calculate 1/2 (B x H) you will get 14 in. The base multiplied by the height is 28, and when divided in half, it is 14 in.

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Sholpan [36]

Answer:

2/7

Step-by-step explanation:

-1 1/7 + 6/7 = -8/7 + 6/7 = 2/7

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3 years ago

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2 years ago

A ramp is used to load suitcases on an airplane. If the cargo door is 7 feet from the ground and the angle formed by the end of

melisa1 [442]

Answer: $16.56\ ft$

Step-by-step explanation:

You must draw a right triangle as the one attached, where "x" is the lenght in feet of the ramp.

You need to use the following Trigonometric Identity:

$sin\alpha=\frac{opposite}{hypotenuse}$

In this case you can identify that:

$\alpha =25\°\\\\opposite=7\\\\hypotenuse=x$

Now you must substitute these values into $sin\alpha=\frac{opposite}{hypotenuse}$ :

$sin(25\°)=\frac{7}{x}$

Finally, you must solve for "x" in order to find its value.

This is:

$sin(25\°)=\frac{7}{x}\\\\xsin(25\°)=7\\\\x=\frac{7}{sin(25\°)}\\\\x=16.56$

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2 years ago

Find the square root of 68.1 to the nearest hundredth

Ira Lisetskai [31]

I think that is is 8.3, but I could be incorrect!

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3 years ago

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Use the expression - 8( - 2.5-7).

Paladinen [302]

Answer:

20+56 or basically 76

Step-by-step explanation:

Just multiply -8 to -2.5 and -7.

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3 years ago