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natima [27]
3 years ago
14

Could some please help me with this?

Mathematics
2 answers:
disa [49]3 years ago
8 0
C: 20 m/s


Explanation:
Distance run: 1000m
Time passed: 50s
Distance divided by time equals speed.

1000m / 50s = 20 m/s
Vladimir79 [104]3 years ago
4 0

Answer: C

Step-by-step explanation:

S(speed)=D(distance)/T(time) so (d)1000/(t)50= 20m/s

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You list the step by step and you're done.

Do you have an example??

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3 years ago
A box contains 10 colored balls. 5 balls are green, 3 balls are red and 2 balls are yellow. One ball is selected at random. What
Setler79 [48]
There is more green balls so that would probably be picked 
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4 years ago
A phone company charges $0.06 per minute for local calls and $0.15 per minute for international calls. When your bill comes, it
Tpy6a [65]

Answer:

781.92

Step-by-step explanation:

4 0
3 years ago
SAT scores are normally distributed, with a mean of 500 points and a
babymother [125]

Recalling that SAT scores are always expressed as multiples of 10, then the points we get on the test will be 628.

<h3>What do you mean by standard deviation?</h3>

In statistics, Standard deviation is a measure of the variation of a set of values.

σ = standard deviation of population

N = number of observation of population

X = mean

μ = population mean

WE have been given that SAT scores are normally distributed, with a mean of 500 points and a standard deviation of 100 points.

The solution as follows;

Let be X: scores of SAT

P(X ≥ x) = 0.9

P((X - 500)/100 ≥ (x - 500)/100) = 0.9

P(Z ≥ z) = 0.9

z = 1.28

1.28 = (x - 500)/100

128 + 500 = x

x = 628

Recalling that SAT scores are always expressed as multiples of 10, then the points we get on the test will be 628.

Learn more about standard deviation and variance:

brainly.com/question/11448982

#SPJ1

8 0
1 year ago
3: Please help. Circle C has its center at (9,0) and a point is on the circle at A(8,6).
valina [46]

Answer:

The correct answer is The equation (9−8)2+(0−6)2=(9−10)2+(0+7)2 is a true statement, so P is on ⨀C.

4 0
3 years ago
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