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3 years ago

Is the angle of rotation for the figure below? Number only

Mathematics

1 answer:

Kryger [21]3 years ago

5 0

Answer:

120°

Step-by-step explanation:

Hope this helps:)

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A person takes a trip, driving with a constant peed of 89.5 km/h, except for a 22.0-min rest stop. If the peron's average speed

Stolb23 [73]

Answer:

a) The person traveled 2.83 hours.

b) The person travels 220.17 kilometers.

Step-by-step explanation:

We have that the speed is the distance divided by the time. Mathematically, that is

$s = \frac{d}{t}$

(a) how much time is spent on the trip and

The peron's average speed is 77.8 km/h, which means that $s = 77.8$

The person distance traveled is:

22 min is 22/60 = 0.37h.

So for the time t1, the person traveled at a speed of 89.5 km/h. Which has a distance of 89.5*t1.

For 0.37h, the person was at a stop, so she did not travel. This means that the total distance is

$d = 89.5t1 + 0 = 89.5t1$

The total time is the time traveling t and the stoppage time 0.37. So

$t = t1 + 0.37$

We want to find t1, which is the time that the person was driving.

$s = \frac{d}{t}$

$77.8 = \frac{89.5t1}{t1 + 0.37}$

$77.8t1 + 77.8*0.37 = 89.5t1$

$11.7t1 = 28.786$

$t1 = \frac{28.786}{11.7}$

$t1 = 2.46$

The total time is

$t = t1 + 0.37 = 2.46 + 0.37 = 2.83$

The person traveled for 2.83 hours.

(b) how far does the person travel?

The person traveled 2.46 hours at an average speed of 77.8 km/h. So

$s = \frac{d}{t}$

$77.8 = \frac{d}{2.83}$

$d = 77.8*2.83 = 220.17$

The person travels 220.17 kilometers.

8 0

4 years ago

Round 12.2564 to the nearest hunderdth

miss Akunina [59]

Answer:

12.26

Step-by-step explanation:

Hope this helps!

~Luck here from black clover~

UwU

4 0

3 years ago

Read 2 more answers

\frac{5+p}{9}<-1<br><br> Can someone help me find how to solve this?

Reil [10]

Answer:

Step-by-step explanation:

$\frac{5+p}{9}$

3 0

3 years ago

HELP I FARTED AND I DIDNT LIKE IT IT FEEL SQWISHY WAT DO I DO

lesantik [10]

GIRL- THIS HAPPENS TO ME TOO I TJINK YOU POOPED ACCIDENTALLY

8 0

3 years ago

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F(x)=x^2+3 find and simplify f(t-5)<br> And f(a+h)-f(a) , f(a) - f(a-h)

Jet001 [13]

1. (t-5)^2+3=t^2-10t+12+3=t^2-10t+15.

2. (a+h)^2+3=a^2+2ah+h^2+3
(a^2)+3=a^2+3. Subtracting, we get h^2+2ah.

3. (a^2)+3=a^2+3
(a-h)^2+3=a^2-2ah+h^2+3. Subtracting, we get 2ah-h^2.

6 0

3 years ago