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3 years ago

Evaluate the expression for n = –8. –2n − 6 =

Mathematics

1 answer:

Nana76 [90]3 years ago

5 0

Answer:

Step-by-step explanation:

$\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}$

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Problem Page A bag contains 9 marbles: 2 are green, 4 are red, and 3 are blue. Mary chooses a marble at random, and without putt

murzikaleks [220]

Green: 2/9×100=22. 22%
Red: 4/9×100=44. 44%
Blue: 3/9×100=33. 33%

Probability: 22. 22%+44. 44%+
33.33%= 99.99%
100. 00-99. 99= 00. 01%

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3 years ago

If orange cost 12.50 pesos each how much do three dozen oranges cost

GalinKa [24]

Answer:

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3 years ago

What is the y-intercept of the line -5x 2y = 14?

rusak2 [61]

The y-intercept of the line should be 7

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3 years ago

What does x • 1 + = _____.

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3 years ago

Read 2 more answers

Noah wants to clean his second story windows and plans to buy a ladder that will reach at least

Lina20 [59]

Answer:

Noah should buy a ladder of length greater than <u>28.1 ft</u> to reach at least 22 feet height.

Step-by-step explanation:

Given:

Noah has to reach at least 22 ft height.

Angle made by the base of ladder with the ground = 51.5°

To find the length of the ladder.

Solution:

On drawing the situation, we get a right triangle. The hypotenuse of the triangle represents the length of the ladder.

In triangle ABC.

∠C = 51.5°

AB = 22 ft

Applying trigonometric ratio to find AC (length of the ladder).

$\sin\theta = \frac{Opposite\ side}{Hypotenuse}$

$\sin C=\frac{AB}{AC}$

Plugging in values.

$\sin 51.5\°=\frac{22}{AC}$

Multiplying AC both sides.

$AC\sin 51.5\°=\frac{22}{AC}\times AC$

$AC\sin 51.5\°=22$

Dividing both sides by $\sin 51.5\°$

$\frac{AC\sin 51.5\°}{\sin 51.5\°}=\frac{22}{\sin 51.5\°}$

$AC=\frac{22}{\sin 51.5\°}$

$AC=28.1\ ft$

Thus, Noah should buy a ladder of length greater than 28.1 ft to reach at least 22 feet height.

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3 years ago