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2 years ago

Please help me with some of these

Mathematics

1 answer:

velikii [3]2 years ago

6 0

Answer:

Step-by-step explanation:

$1) Sin \ C = \dfrac{opposite side of C}{Hypotenuse}=\dfrac{21}{29}\\\\2)Sin \ C = \dfrac{30}{50}=\dfrac{3}{5}\\\\3) Cos \ C = \dfrac{adjacent \ side \ of \ C}{hypotenuse}=\dfrac{36}{39}=\dfrac{12}{13}\\\\4) Cos \ C =\dfrac{8}{17}$

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How to rationalize <img src="https://tex.z-dn.net/?f=%5Cfrac%7B17%7D%7B4%5Csqrt%7B1%7D7%20%7D" id="TexFormula1" title="\frac{17}

dem82 [27]

Answer:

$\frac{\sqrt{17}}{4}$

Step-by-step explanation:

Rationalizing the denominator of a fraction is when one multiplying fraction such that it removes any radical from the denominator. This can be done by multiplying both the numerator and the denominator by the radical that is present in the denominator. In fractional terms, a number over itself is equal to one, therefore, doing this would keep the equation true. After multiplying, one will simplify the resulting fraction.

$\frac{17}{4\sqrt{17}} * \frac{\sqrt{17}}{\sqrt{17}}\\\\= \frac{17\sqrt{17}}{4(17)}\\$

Simplify like factor found in both the numerator and the denominator,

$\frac{17\sqrt{17}}{4(17)}\\\\= \frac{\sqrt{17}}{4}$

8 0

2 years ago

Multiply the following numbers. Reduce the answer to lowest terms. 3 1/5 x 2 1/7

Veseljchak [2.6K]

Answer:

48/7

Step-by-step explanation:

= 3 1 × 2 1

5. 7

= 16 × 15

5. 7

= 240 , if we divide both numbers by 5 we get;

= 48

4 0

2 years ago

How many roots do the functions have in common? f(x)=x^2-4x-5f(x)=x 2 −4x−5

kakasveta [241]

Answer:

They have both root common .

7 0

3 years ago

I think it is A but i am not sure can someone check and tell me if im wrong

nordsb [41]

Answer: it is 1.8

Step-by-step explanation: you can look up this same qustion and find it on branly <3 your right

7 0

1 year ago

Uurgent please help me

Alborosie

Answer:

5/6 (i think im not good at math soz)

-Mina

Step-by-step explanation:

Branily stop deleting my awnsers

4 0

1 year ago