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3 years ago

HELP ASAP. giving brainliest . And 20 points ! Need to know help ASAP.

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

8 0

Answer: 252 in

Step-by-step explanation:

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PLS Help me in question 34 and 35

attashe74 [19]

34- 6, 12, 18, 24, 30, 36
35- 15, 30, 45, 60, 75, 90

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3 years ago

A flashlight is projecting a triangle onto a wall, as shown below.

zavuch27 [327]

Answer:

Hence the correct option is 3rd option. 40

Step-by-step explanation:

If two figures are similar, then the ratio of the corresponding sides is proportional.

$\frac{15}{30} =\frac{20}{n} \\\\n=\frac{30 \times 20}{15} \\\\n= 40.$

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2 years ago

Order the set of numbers from least to greatest 64 8 1/7 8.14 15/2

Marianna [84]

Answer:

Step-by-step explanation:

1/7 15/2 8 8.14 64

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3 years ago

3n-5=19

alina1380 [7]

Answer:

n=8

Step-by-step explanation:

3n-5=19

3n=19+5

3n=24

n=24/3

n=8

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3 years ago

Cos(-170°) = _____<br><br> -cos10°<br> cos10°<br> cos(-10°)

ikadub [295]

<em>The right answer for:</em>

<h2>Explanation:</h2>

The cosine function is an even function, which means that for every point $(x,y)$ on the graph of $y=cos(x)$ then the point $(-x,y)$ also lies on the graph of the function. In other words, we can write:

$cos(-170^{\circ})=cos(170^{\circ})$

But:

$170^{\circ}=180^{\circ}-10^{\circ}$

So:

$cos(170^{\circ})=cos(180^{\circ}-10^{\circ})$

By property:

$cos(a-b)=cosacosb+sinasinb \\ \\ a=180^{\circ} \\ \\ b=10^{\circ} \\ \\ cos(170^{\circ} )=cos(180^{\circ} -10^{\circ})=cos180^{\circ} cos10^{\circ} +sin180^{\circ} sin10^{\circ} \\ \\ cos(170^{\circ})=-cos(10^{\circ})+0 \\ \\ \boxed{cos(170^{\circ})=-cos(10^{\circ})}$

<h2>Learn more:</h2>

Trigonometric functions: brainly.com/question/2680050

#LearnWithBrainly

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2 years ago