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3 years ago

I fly to chicago 450 kilometers away it takes 3 hours what is my average speed?

Mathematics

2 answers:

Ratling [72]3 years ago

8 0

150 kilometers per hour

inn [45]3 years ago

8 0

We know, speed = distance / time
speed = 450 / 3
speed = 150 Km/h

In short, Your Average speed was 150 Km/h

Hope this helps!

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Label the following as either function or relation

Katarina [22]

I can't see anything so I'll say function. Next time add a screenshot!

Best of luck to you

4 0

3 years ago

Suppose an electronics manufacturer knows from previous data that 2% of

harkovskaia [24]

Answer:

B.) This is not a binomial experiment, because the number of trials is not fixed.

Step-by-step explanation:

For a certain experiment to be classed as a binomial, it has to meet some criteria ;

Which include ;

1.) The trials should be independent.

11.) Each trial should be classifiable into one of success of failure.

111). There is a fixed mean probability for success and failure

IV) There is a fixed number of trials, in experiment described above, the number of trials isn't fixed, it is variable, as the trial will continue until a defective item is obtained.

3 0

3 years ago

Look at pic down underrr

dimulka [17.4K]

Answer:

Triangle rsu = Triangle tus

Statements Reasons

UR ≅ TS Definition of Rectangle

US ≅ US Reflexive Property

<U, <T, <R, <S are all congruent and right angles

Definition of Rectangle

ΔRSU ≅ ΔTUS Side, Angle, Side

UR ≅ TS CPCTC

Just draw a reverse angle,hence you get comparison.

So, satisfying S-S-S

RUS ≅ SUT

RSU ≅ TUS

So, angle

URS = angle TUS

2. Pythagoras Theorem

Triangle RUS

A^2 + B^2 = C^2

Uu^2 + Ss^2 = Rr^2

√Rr = Rr^2 = x

Triangle TUS

A^2 + B^2 = C^2

Ss^2 + Uu^2 = Tt^2

√Tt = Tt^2 = x

UR measure / sin (60) x (90) = US measure.

ST measure / sin (60) x (90) = US measure.

Proves angles RSU = 30 degree

Proves angles TUS = 30 degree

As all adjacent angles in a triangle add up to 180 degree.

7 0

3 years ago

What is the solution to the problem expressed to the correct number of significant figures? 15. 11 (142 × 16. 5) = ? A. 2,358 B.

olchik [2.2K]

The solution to the problem expressed 2358.

<h3>What is the meaning of significant figure?</h3>

Significant figure It is defined as the minimum number of digit us needed to express a number in scientific notation.

Therefore we get,

$15.11+(142\times16.5)$

First we have to multiply the given digits as per rule.

$=15.11+2343$

Now we will add both the digits, we get

$=2358.11$

As per given expression, we conclude that the number of significant figure is 4.

So, the answer will be, 2358.

Therefore, the correct option is, 2358.

To learn more about the significant figures visit:

brainly.com/question/24491627

8 0

2 years ago

Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distribute

balu736 [363]

Answer:

The area of the shaded region is 0.9082.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value, which is the area of the shaded region, is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 100, \sigma = 15, X = 120$

Area of the shaded region:

pvalue of Z

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{120 - 100}{15}$

$Z = 1.33$

$Z = 1.33$ has a pvalue of 0.9082

The area of the shaded region is 0.9082.

4 0

3 years ago