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tatiyna
3 years ago
5

How can you figure if it moves

Mathematics
1 answer:
natta225 [31]3 years ago
7 0

What is your question asking?


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I'll give 30 points and brainlist
Kamila [148]

Answer:

100 degrees

Step-by-step explanation:

Arc QM = Arc QN = 130°

Arc MN = 360 - Arc QM - Arc QN

= 360 - 2(130)

= 360 - 260

= 100°

7 0
4 years ago
Leo takes 15 minutes to cycle to school at an average speed of 12 km/h. What speed will he have if he only takes 12 minutes?
never [62]

Answer:

15 km/h

Step-by-step explanation:

Leo takes 15 minutes to cycle to school at an average speed of 12 km/h. What speed will he have if he only takes 12 minutes?

15 minutes * (1 hour)/(60 minutes) = 0.25 hour

speed = distance/time

distance = speed * time

distance = 12 km/h * 0.25 hour = 3 km

He cycles a distance of 3 km.

12 minutes * (1 hour)/(60 minutes) = 0.2 hour

speed = distance/time

speed = 3 km/(0.2 hour)

speed = 15 km/h

5 0
4 years ago
Find the inverse of the given function.
kodGreya [7K]

For this case we must find the inverse of the following function:

f (x) = - \frac {1} {2} \sqrt {x + 3}

We follow the steps below:

Replace f(x) with y:

y = -\frac {1} {2} \sqrt {x + 3}

We exchange the variables:

x = - \frac {1} {2} \sqrt {y + 3}

We solve for "y":

- \frac {1} {2} \sqrt {y + 3} = x

Multiply by -2 on both sides of the equation:

\sqrt {y + 3} = - 2x

We raise both sides of the equation to the square to eliminate the radical:

(\sqrt {y + 3}) ^ 2 = (- 2x) ^ 2\\y + 3 = 4x ^ 2

We subtract 3 from both sides of the equation:

y = 4x ^ 2-3

We change y by f ^ {- 1} (x):

f ^ {- 1} (x) = 4x ^ 2-3

Answer:f ^ {- 1} (x) = 4x ^ 2-3

7 0
4 years ago
Read 2 more answers
Based on a​ survey, assume that 43​% of consumers are comfortable having drones deliver their purchases. Suppose that we want to
lutik1710 [3]

Answer:

The probability that exactly three of them are comfortable with delivery by drones is 0.2583.

Step-by-step explanation:

Let <em>X</em> = number of consumers comfortable having drones deliver their purchases.

The probability of the random variable <em>X</em> is, P (X) = <em>p</em> = 0.43.

Then <em>q</em> is, <em>q</em> = 1 - p

A sample of <em>n</em> = 5 consumers are selected.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em>.

The pmf of <em>X</em> is:

P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0,1,2,3...

Compute the value of P (X = 3) as follows:

P(X=3)={5\choose 3}0.43^{3}(1-0.43)^{5-3}\\=10\times 0.079507\times 0.3249\\=0.258318\\\approx0.2583

Thus, the probability that exactly three of them are comfortable with delivery by drones is 0.2583.

6 0
3 years ago
PLEASE HELP HAVE TO TURN IN BY 12:20 WILL GIVE BRAINLIEST!!!!!!!!!!!!!!
Elenna [48]
The third one will be the answer

6 0
3 years ago
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