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Goshia [24]
4 years ago
13

PLEASE HELP FINDING y IN TRIANGLE AND ROUND TO NEAREST TENTH TRIG!! HELP ASAP APLEASE

Mathematics
1 answer:
polet [3.4K]4 years ago
5 0

Answer:

<em>y = 12.3 cm</em>

Step-by-step explanation:

This is a right triangle, so we can use sin,cos, or tan to solve this.

First, with respect to the angle 35 degrees, we can say "y" is the "adjacent side".

Also, the hypotenuse is given as 15.

<em>Which trig ratio relates adjacent and hypotenuse? That is COS. So we can write and solve the equation below:</em>

<em>Cos(35)=\frac{y}{15}\\y=Cos(35)*15\\y=12.29</em>

<em />

<em>Rounded to 1 decimal place (nearest tenth) , </em>

<em>y = 12.3 cm</em>

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IF NR = 8 ft, what is the length of arc NMP. Round to the nearest tenth.
Pavlova-9 [17]

Check the picture below.

since chords NQ and MP cross the center of the circle at R, that means that those two chords are diametrical chords and the angles made by both are vertical angles and thus twin angles, namely both are 18° as you see in the picture, so the angle NMP in magenta is really 162° + 18° + 18° = 198°, and we know the radius NR is 8.

\textit{arc's length}\\\\ s=\cfrac{r\pi \theta }{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=8\\ \theta =198 \end{cases}\implies s=\cfrac{(8)\pi (198)}{180}\implies s\approx 27.6

4 0
2 years ago
If f ( x ) = x 4 + 6 , g ( x ) = x − 5 and h ( x ) = √ x , then f ( g ( h ( x ) ) ) =
zaharov [31]

Answer:

fgh(x)=4\sqrt{x} -14

Step-by-step explanation:

when solving composite fuctions we go from the right to the left

meaning we replace the x in the g function with the entire h function

then replace the x in the f function with the entire new g function

h(x)=\sqrt{x}

g(\sqrt{x})=\sqrt{x} -5

f(\sqrt{x}-5)=4(\sqrt{x} -5)+6

f(\sqrt{x}-5)=4\sqrt{x} -20+6

fgh(x)=4\sqrt{x} -14

3 0
3 years ago
The probability that it will be colder today than it was yesterday is 0.2
Leviafan [203]

Answer:

0.8

Step-by-step explanation:

= 1 - 0.2

= 0.8

that's the answer above

8 0
3 years ago
Read 2 more answers
Help please ASAP pleassssseeee
Anna71 [15]

Ok the first box is 85 because that's the y - intercept or the constant in the equation because he starts with 85 wheels. The next box is 4 because that's the rate of change per a car. He's going to buy more wheels after there's 40 wheels so it's asking how many cars can you make with still 40 wheels left. The answer is 11 cars.

7 0
3 years ago
ASAP I NEED HELP WITH THIS!!!
tamaranim1 [39]

Answer:

D

Step-by-step explanation:

Sector of Area=(theta/360)*pi*r^2

Sector of area=(135/360)*pi*19^2=(1083)/8 pi

8 0
3 years ago
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