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miv72 [106K]
4 years ago
12

Find the m∠2 90° 67° 157° 57°

Mathematics
1 answer:
MariettaO [177]4 years ago
5 0

Answer:

The answer to this is 39°

Step-by-step explanation:

because as you can see 23° if you add 16° to 23° then it equals to 39°

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Use phasor techniques to find an expression for i(t) expressed as a single cosine function, where i(t)=[250cos(377t+30∘)−150sin(
Elanso [62]
Asked and answered elsewhere. (You can do the rounding yourself.)
brainly.com/question/9359711
5 0
4 years ago
To earn a fitness award, your average heart rate while walking must be between 80 and 89 beats per minute, inclusive. Suppose yo
Morgarella [4.7K]
Based on the first three (3) recordings, your average heart rate in beats per minute is approximately 84 bpm (mean). Calculating for the standard deviation of the samples, we get about 2.5 bpm. To give the possible heart rates on the fourth, we may solve for the range:

Upper Range = Mean + Standard Deviation = 84 + 2.5 = 86.5 bpm or 87 bpm
Lower Range = Mean - Standard Deviation = 84 - 2.5 = 81.5 bpm or 82 bpm

Therefore the fourth and final recording will likely to fall in the range of 82 - 87 beats per minute. You will win the fitness award!

<em>ANSWER: 82-87 beats per minute</em>

3 0
4 years ago
A frog weighs 3/5 lb. What is the mass of the frog in kilograms 1 ib equals 0.45 kg?
sergejj [24]

The mass of the frog will be 0.27 kilograms.

<u><em>Explanation</em></u>

The weight of the frog is  \frac{3}{5} pound.

As  1 pound = 0.45 kilograms,

So <u>for finding the mass of the frog in kilograms, we need to multiply  \frac{3}{5}  by 0.45</u>

Thus,  \frac{3}{5}*0.45= \frac{1.35}{5}=0.27

So, the mass of the frog will be 0.27 kilograms.

7 0
4 years ago
I NEED HELP ASAP!!!PLEASE EXPLAIN THE ANSWER
Dimas [21]

Answer:

Below

Step-by-step explanation:

To find surface area, you can just find the area of each side and add them up!

11 ft x 9 ft x 2 = 198 ft^2 (this is the surface area of the front and back)

12 ft x 9 ft x 2 = 216 ft^2 (this is the surface area of the sides)

12 ft x 11 ft x 2 = 264 ft^2 (this is the surface area of the top and bottom)

Surface area = 198 + 216 + 264

                      = 678 ft^2

Hope this helps! Best of luck <3

5 0
3 years ago
Find the slope of the function f ( x ) = 3 - 2 x , by the definition of limit.
musickatia [10]

Answer:

the slope is -2\lim_{n \to \0}( f(x+h)-F(x)) /h \\\\ \lim_{n \to \0} (3-2(x+h)-(3-2x))/h\\ f(x+h)= 3-2(x+h) \\f(x)=3-2x\\ \\\lim_{n \to \0}  (3-2x-2h-3+2x)/h\\\\ \lim_{n \to \0} -2h/h\\  \\ \lim_{n \to \0} -2\\=-2\\\\In all limits, you have to put n goes to 0 (zero)

Step-by-step explanation:

8 0
3 years ago
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