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Marina CMI [18]
3 years ago
8

Someone please help me with my homework

Mathematics
1 answer:
spin [16.1K]3 years ago
3 0
Answer: 
20700 feet per hour

Explanation: 
Convert 345 feet per minute to 345 feet per hour. 
First find how many minutes are in an hour:
60 minutes = 1 hour. 
1 minute • 60 = 1 hour
345 feet • 60 = 20700 feet per hour.
You might be interested in
A triangle has one side that is 6 units long and another side that is 3 units long.
kiruha [24]

The possible value of the third length is an illustration of Triangle inequality theorem

The possible third lengths are 4 units and 6 units

<h3>How to determine the possible length of the third side?</h3>

To determine the third length, we make use of the following Triangle inequality theorem.

a + b > c

Let the third side be x.

So, we have:

x + 6 > 3

x + 3 > 6

3 + 6 > x

Solve the inequalities

x > -3

x > 3

x < 9

Remove the negative inequality value.

So, we have:

x > 3 or x < 9

Rewrite as:

3 < x or x < 9

Combine the inequality

3 < x < 9

This means that the possible value of the third length is between 3 and 9 (exclusive)

Hence, the possible third lengths are 4 units and 6 units

Read more about Triangle inequality theorem at:

brainly.com/question/2403556

5 0
2 years ago
Xavier surveyed a random sample of the grade levels of the Spanish Club members in the county. The bar graph shows the results o
pishuonlain [190]

Answer:

80

Step-by-step explanation:

If you add each value it equals 30.

30x10=300 so 8 (value of the 9th grade bar) times 10 equals 80.

8 0
3 years ago
Read 2 more answers
The Pearson product-moment correlation coefficient Group of answer choices is called the Pearson c. is used when both variables
Alekssandra [29.7K]

Answer:

provides information about the strength of a relationship

Step-by-step explanation:

A numerical measure of strength in the linear relationship between any two variables is called the Pearson's product moment correlation coefficient.

The co efficient of correlation is a pure number denoted by r , independent of the units in which the variables are measured that can range from+1 to -1 .

The sign of r indicates the direction of the cor relation.

When r= 0 it does not mean that there is no relationship . For example if the observed values lie exactly on a circle , there is a relationship between variables but r = 0  as r only measure linear cor relation.

The 2nd statement given is the correct answer.

It is not related to ordinal or nominal properties and it does show direction.

6 0
3 years ago
Simplify. Write your answer in standard form.<br><br><br>(4x^3+6x−7)+(3x^3−5x^2−5x+9)
UkoKoshka [18]

answer: 7x^ - 5x^2 + x + 2

step-by-step explanation: i think thats it

3 0
2 years ago
Y(x) = 2x² + 12x + 5
tester [92]

Answer:

[-6 ± √26]\2

Step-by-step explanation:

y(x) is no such thing.

Now, since this is unfactorable, apply the Quadratic Formula, x = [-b ± √(b² - 4ac)]\2a:

[-12 ± √104]\4

Divide everything by 2 to get the above answer.

I am joyous to assist you anytime.

8 0
3 years ago
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