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3 years ago

Simplify an expression

Mathematics

2 answers:

just olya [345]3 years ago

8 0

Answer:

Last option

Step-by-step explanation:

Umnica [9.8K]3 years ago

7 0

Answer:

Step-by-step explanation:

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PLEASE HELP ME WITH THIS

gladu [14]

Answer:

232

Step-by-step explanation:

First

Normally the average of something is total something over total time. I'll do it that way and see what happens.

The total time is ( 4 - 2) = 2 hours.

f(x) = 2^4 - 2 = 14

Change = 14/2 = 7 per hour.

Second

Average = Increase / time.

10000 (1.02)^10 - 10000 * (1.02)^5

10000*1.22 - 10000*1.104

12,200 - 11040

1160

The average per year = 1160 / 5 = 232

8 0

3 years ago

I need the answer to

Vesnalui [34]

Answer:

I think its B

Hope this helps

8 0

3 years ago

In a right triangle with acute angle of measure theta, sintheta=1 /2. What is the value of costhetatheta? Draw a diagram as part

Stells [14]

Answer:

0.866

Step-by-step explanation:

By definition

$sin \theta = \frac{Opposite}{Hypotenuse}$

$cos \theta = \frac{Adjacent}{Hypotenuse}$

We know that $sin \theta = 0.5$ . Inverse of sine is arcsin, so, angle $\theta$ is computed as

$\theta=arcsin(0.5)=30$

Therefore, cosine of $\theta$ is

cos (30°) = 0.866

3 0

4 years ago

Given the speeds of each runner below, determine who runs the fastest. \text{Brooke runs 13 feet per second.} Brooke runs 13 fee

Trava [24]

Answer:

Brooke runs the fastest.

Step-by-step explanation:

Brooke runs 13 feet per second.

Therefore, speed of Broke = 13 feet per sec.

Will runs 308 feet in 26 seconds.

Speed of Will = $\frac{\text{Distance}}{\text{Time taken}}$

= $\frac{308}{26}$

= 11.85 feet per second

Ron runs 1 mile in 551 seconds.

1 mile = 5280 feet

Speed of Ron = $\frac{5280}{551}$

= 9.58 feet per second

Debbie runs 658 feet in 1 minute.

1 minute = 60 seconds

Speed of Debbie = $\frac{658}{60}$

= 10.97 feet per seconds

Here, speed of Brooke is the maximum.

Therefore, Brooke runs the fastest.

7 0

4 years ago

Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s

lana66690 [7]

Angle (radians) = arc length / radius
angle (radians) = 6 inches / 27
angle = 2 / 9 radians = .22222 radians

Source:
http://www.1728.org/radians.htm

6 0

4 years ago