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3 years ago

The area of the rectangle and triangle and trapezoid?

Mathematics

1 answer:

suter [353]3 years ago

8 0

Rectangle- A=bh triangle- A=0.5bh trapezoid- A= ( base 1 + base 2) h divided by 2

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At a military function, three cannons are fired at intervals of 12

Morgarella [4.7K]

Answer:

144 seconds

Step-by-step explanation:

To do solve this question, we must find the LCM (least common multiple) of 12, 16, and 18.

Let's start by prime factorizing (finding the prime factors) all the numbers.

$12\rightarrow3*4\rightarrow2*2*3$

$16\rightarrow4*4\rightarrow2*2*2*2$

$18\rightarrow2*9\rightarrow2*3*3$

Now, we must find the greatest quantity of each [prime] number and multiply them together to obtain the least common multiple.

Upon further evaluation of the [prime] factors, we can see that we need four 2s and two 3s. Therefore...

$2*2*2*2*3*3=2^4*3^2=16*9=144$

They will be fired together again after 144 seconds.

3 0

2 years ago

How do you solve a slope for a parallel/perpendicular line?

Burka [1]

The slope of a perpendicular line is the opposite of the reciprocal (negative to positive or positive to negative and then flip the fraction) and the parallel lines have the same slope

4 0

3 years ago

Help its a 5 question problem 3 with drop down answers and fractions

Anna71 [15]

Answer:

uhhhh

Step-by-step explanation:

8 0

3 years ago

Sunshine City was designed to attract retired people. Its current population of 75,000 residents has a mean age of 63 years and

Leokris [45]

Answer:

a) Identify the variable of interest.

Ages of the residents

b) Describe the center and spread of the population of Sunshine City.

Center of the population of Sunshine city = 63 years

Spread of the Population of Sunshine city = 17 years

c) Describe the center and spread of the random sample of Sunshine City

residents taken.

Center of the random sample of Sunshine city = 61.4 years

Spread of the random sample of Sunshine city = 19 years

What shape does it probably have:

It has a skewed(left) shape

Step-by-step explanation:

a) Identify the variable of interest.

Ages of the residents

The center of a distribution tells us about the Mean or Median of the distribution

The spread of a distribution tells us about the standard deviation of the population

b) Describe the center and spread of the population of Sunshine City.

Center of the population of Sunshine city = Mean of the population of Sunshine city = 63 years

Spread of the Population of Sunshine city = Standard Deviation of the population = 17 years

c) Describe the center and spread of the random sample of Sunshine City

residents taken.

Center of the random sample of Sunshine city = 61.4 years

Spread of the random sample of Sunshine city = 19 years

What shape does it probably have:

It has a skewed(left) shape

This is because the mean is farther out to the left side of the tail of the distribution.

7 0

3 years ago

Which number is a perfect square?

Kisachek [45]

Answer:

The answer is 144

Step-by-step explanation:

Because the square root of 12 is 144 making a whole number.

8 0

3 years ago