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Reptile [31]
3 years ago
6

If X = 18 inches, Y = 80 inches, and Z = 82 inches, what is the cosine of B?

Mathematics
1 answer:
svetoff [14.1K]3 years ago
8 0
Cosine is probably either opp/hyp or adj/hyp
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I need help with this ​
Sergio [31]

Answer:

A and C are true

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find lim f(x) if f(x)<br> x-&gt;5<br> =<br> {<br> -x² -1, x #5<br> -3, x=5
Alex73 [517]

Given

f(x) = \begin{cases} -x^2 - 1 & \text{if }x \neq 5 \\ -3 & \text{if }x=5 \end{cases}

we have

\displaystyle \lim_{x\to5} f(x) = \lim_{x\to5} (-x^2-1) = -5^2-1 = \boxed{-26}

since we are <em>approaching</em> x=5, so effectively x\neq 5 and we use the definition of f(x) under that condition.

3 0
1 year ago
if a piece of string which is 368cm long must be cut into 8 equal pieces how long will each piece be (answer in mm)​
Maksim231197 [3]
1cm= 10mm
So you do 368 divided by 80 which is 4.6mm
3 0
3 years ago
A parachutist's speed during a free fall reaches 207 kilometers per hour. What is this speed in meters per second? At this speed
Mamont248 [21]
<span>The speed is 57.5 m/s and the parachutist will fall 1150 m in 20 seconds.

Explanation<span>:
We start out with the ratio 207 km/1 hr.

We know that 1 km = 1000 m; this means 207 km = 207*1000 = 207000 m. This gives us 207000 m/1 hr.

We know that 1 hr = 60 minutes, so we have 207000 m/60 min.

We also know that 1 min = 60 seconds, so 60 min = 60*60 = 3600 sec; this gives us 207000 m/3600 sec.

Dividing this, we get 57.5 m/s.

In 20 seconds, the parachutist will fall 57.5(20) = 1150 m.</span></span>
4 0
4 years ago
Read 2 more answers
Audrey is painting her house. She used 1/8 of a gallon in her bathroom, and 2/6 of a gallon of paint in her bedroom. How much pa
inna [77]

Answer:

1/8 and 2/6 put them in common terms making it

3/24 and 8/24 so you add them giving you

11/24 which can't be simplified so she used 11/24 of a gallon of pain in total

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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