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2 years ago

799.73 round to the nearest whole number

Mathematics

2 answers:

Ainat [17]2 years ago

7 0

The answer is 800 I am 100% sure

JulsSmile [24]2 years ago

4 0

800 hope this helped :)

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In the soccer games so far this season, Letty has had 15 goals in 20 attempts at a goal. What is the probability, expressed as a

Inga [223]

20 is 1/5 of 100 so do 20x5=100 and 15x5=75

So there is a 75% chance she will make the goal

6 0

2 years ago

Read 2 more answers

The scheduled arrival time for a daily flight from Boston to New York is 9:35 am. Historical data show that the arrival time fol

Lady_Fox [76]

Answer:

The mean is 11.5 minutes and the standard deviation is of 6.64 minutes

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The mean is:

$M = \frac{a+b}{2}$

The standard deviation is:

$S = \sqrt{\frac{(b-a)^{2}}{12}}$

Arrival time of 9:18 am and a late arrival time of 9:41 am.

9:41 is 23 minutes from 9:18. So the time is uniformily distributed between 0 and 23 minutes, so a = 0, b = 23.

Mean:

$M = \frac{a+b}{2} = \frac{0+23}{2} = 11.5$

Standard deviation:

$S = \sqrt{\frac{(b-a)^{2}}{12}} = \sqrt{\frac{(23 - 0)^{2}}{12}} = 6.64$

The mean is 11.5 minutes and the standard deviation is of 6.64 minutes

8 0

2 years ago

Solve triangle ABC, when A= 6, B=10 and c=12

valentinak56 [21]

Use cosine rule,

cos(A)=(b^2+c^2-a^2)/(2bc)
=(10^2+12^2-6^2)/(2*10*12)
=13/15
A=29.926 degrees.................................(A)

cos(B)=(c^2+a^2-b^2)/(2ca)
=(12^2+6^2-10^2)/(2*12*6)
=5/9
B=56.251 degrees.................................(B)

cos(C)=(a^2+b^2-c^2)/(2ab)
=(6^2+10^2-12^2)/(2*6*10)
=-1/15
C=93.823 degrees.................................(C)

Check:29.926+56.251+93.823=180.0 degrees....ok

5 0

3 years ago

How do you solve x^2+11x+18=0 with either quadratic formula. factoring. or squarerooting

Lostsunrise [7]

I always prefer factoring, if there are simple factors.
There are simple factors here.

x² + 11x + 18 = 0

(x + 2) (x + 9) = 0

The left side is zero if either factor is zero.

First factor:
x + 2 = 0
<u>x = -2</u>

Second factor:
x + 9 = 0
<u>x = -9 </u>

3 0

2 years ago

Read 2 more answers

Review the proof.A 2-column table with 5 rows. Column 1 is labeled step with entries 1, 2, 3, 4, 5. Column 2 is labeled Statemen

mariarad [96]

Oh ok it is helpful

5 0

2 years ago