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3 years ago

Help me and dont be mean because i dont know it cuz my little sis was mean earlier

Mathematics

2 answers:

Readme [11.4K]3 years ago

5 0

It’s letter d because I know so

WINSTONCH [101]3 years ago

3 0

Answer:

50 miles per hour

Step-by-step explanation:

50 miles matches up with 1 hour, 100 miles matches up with 2 hours, and so on.

Hope this helps! :)

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I need help!! please, you don’t even have to do it all just explain to me how to do the first one I’ll catch on

lisov135 [29]

Hi there!

What we need to know:

The three main trigonometric ratios are sine, cosine and tangent:

$\displaystyle sin\theta=\frac{opposite}{hypotenuse}$ $\displaystyle cos\theta=\frac{adjacent}{hypotenuse}$ $\displaystyle tan\theta=\frac{opposite}{adjacent}$

"Opposite" refers to the side opposite the angle that is not the hypotenuse.

"Hypotenuse" refers to the side opposite the right angle of a right triangle.

"Adjacent" refers to the side next to the angle that is not the hypotenuse.

"θ" is read as "theta". It just represents the angle.

Keep in mind that these three ratios only apply to right triangles.

You can use the mnemonic "soh-cah-toa" to help you remember these ratios.

First question

For the first question, we're given the angle with a measure of 56 degrees and the length of the hypotenuse. We must calculate a, which represents the side adjacent to the given angle.

Given the hypotenuse and the adjacent side, we know that we must use the cosine ratio:

$\displaystyle cos\theta=\frac{adjacent}{hypotenuse}$

Plug in the given information:

$\displaystyle cos56=\frac{a}{13}$

Isolate a by multiplying both sides by 13:

$13\displaystyle cos56=a$

Solve using a calculator:

$a=7.3$

Therefore, a is equal to 7.3 when rounded to 1 decimal place.

Other information you will need to know:

In the above question, we needed to solve for a side. But what if we were given two sides and we needed to solve for an angle? For example:

$\displaystyle sin\theta=\frac{5}{8}$

In this case, we will use the inverse sine ratio:

$\displaystyle \theta=sin^-^1(\frac{5}{8})$

Solve using a calculator:

$\displaystyle \theta=39$

Therefore, the angle would equal approximately 39 degrees.

I hope this helps!

3 0

2 years ago

Please help with this question thanksm

cluponka [151]

Answer: a) 1/64

Step-by-step explanation:

5 0

3 years ago

For all real numbers b and c such that the product of

qwelly [4]

Answer:

E: b/3+3

Step by step:

3 C= b

C + 3 = b/3 + 3 (Adding 3 to both sides)

Answer: E: b/3 + 3

Hope this helps

3 0

3 years ago

Multiply (x - 4)(x - 3) PLZZZ get it RIGHT, SHOW YOUR WORK,AND NO LINKS PLZ!

Pepsi [2]

Answer:

Step-by-step explanation:

(x - 4) (x - 3)

x^2 - 3x - 4x + 12 (you distribute x in (x-4) to each of the terms x and -3 and multiply them. x*x is x^2 and x*(-3) is -3x. Then, you distribute -4 in (x-4) to each of the terms x and -3 and multiply them. -4*x is -4x and -4*-3 is 12)

x^2 - 7x + 12 (B)

3 0

3 years ago

Read 2 more answers

Without doing any calculations, how can you use the given information to tell which animal mo the fastest? The moves much th mov

erik [133]

You can tell which animal is faster by pacing

8 0

3 years ago