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3 years ago

Steve travelled from Ashton to Barnfield.

Mathematics

1 answer:

USPshnik [31]3 years ago

5 0

Answer:

67.1

Step-by-step explanation:

Given That:

Time = 200 minutes = 3.5 hours

Distance = 235 miles

We Know That:

Speed = Distance / Time

SO, Speed = 235 divided by 3.5 = 67.1428571

Round this 3sf = 67.1

Hope this helps.

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A triangular window is above the door to a café. The base of the window is 12 feet, and the height is 10 feet.

mariarad [96]

the answer is 120 just do 10*12

7 0

3 years ago

Read 2 more answers

What is the tangent ratio for angle H?

lesya692 [45]

The answer is C: 5/12

Tangent= opposite side/adjacent side

Opposite side of H=5
Adjacent side of H=12

Tangent of Angle H= 5/12

Hope this helped!

4 0

3 years ago

ACT mathematics score for a particular year are normally distributed with a mean of 28 and a standard deviation of 2.4 points

kompoz [17]

Answer:

a. 0.1587

b. 0.8849

c. 0.1814

Step-by-step explanation:

a. Given that $\mu=28, \ \ \sigma=2.4$

-The probability a randomly selected score is greater than 30.4 is calculated as:

$P(X>30.4)=1-P(X30.4)=1-P(z$

Hence, the probability of a score greater than 30.4 is 0.1587

b. Given that $\mu=28, \ \ \ \sigma=2.4$

The probability a randomly selected score is less than 32.8 is calculated as:

$P(X$

Hence, the probability that a randomly selected score is less than 32.8 is 0.8849

c. The probability that a score is between 25.6 and 32.8 is calculated as follows:

$P(25.6$

Hence, the probability is 0.1814

3 0

3 years ago

Which of the following cannot be used to prove that two triangles are congruent?

ANEK [815]

Answer:

Step-by-step explanation:

hope it helps

8 0

2 years ago

The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.

WITCHER [35]

The minimum sample size required to estimate the mean usage of water = 2225.07

What is Standard deviation?

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

We can find the minimum sample size required to estimate the mean usage of water as shown below:

Standard deviation $\sigma =3.61$

Margin of error E=0.15

Critical value for 95% confidence interval = 1.96

Required minimum sample size: $n=(\frac{Z_{\frac{\alpha}{2}}.\sigma }{E} )^2$

$=(\frac{1.96\times 3.61}{0.15} )^2$

=2225.07

Hence, the minimum sample size required to estimate the mean usage of water = 2225.07

Learn more about Standard deviation here:

brainly.com/question/22920224

#SPJ4

7 0

2 years ago