17 and 18 please :)?

Mathematics

1 answer:

scoray [572]4 years ago

4 0

17) The wording is not the best, but they want you to do 1/2 + 1/4, which is 3/4.

18) a). vertixes are the pointy bits, the ones at the angles of the faces, and edges connect vertices (count them: there are 8 vertices and 12 edges). Imagine going from one edge to the one farthest from it. If you have playdoh or some breadto cut, try it. You'll see that the section you'll obtain is a rectangle, if what you cut looks like the figure.

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Mandarinka [93]

Answer:

It would be 4/a

Step-by-step explanation:

3 0

3 years ago

Asap please!!!! there is pictue below. please make explanation easy to understand to show work

navik [9.2K]

Answer:

48 plastic bandages

Step-by-step explanation:

3/9 = 16/x Set up proportion

3x = 144 Cross multiply

x = 48. Solve for x

5 0

3 years ago

Pediatricians will measure and track the growth of an infant’s weight and length to be sure the baby is thriving and growing pro

WITCHER [35]

Answer:

Grace and Claire’s parents are saving money now for their college education. Function 1 shows the growth of baby Grace’s college fund over time. Function 2 shows growth of baby Claire’s college fund over time.

Step-by-step explanation:

7 0

3 years ago

Is the statement "Two matrices are row equivalent if they have the same number of rows" true or false? Explain. A. True, because

vlabodo [156]

Answer: The answer is (C).

Step-by-step explanation: The given statement is - "Two matrices are row equivalent if they have the same number of rows". We are to explain whether the statement is true or false.

What are row equivalent matrices? The answer to this question is -

Two matrices are said to be row equivalent if one of the matrices can be obtained from the other by applying a number of elementary row operations. Or, we can say two matrices of same order are row equivalent if they have same row space.

Thus, the correct option is (C).

7 0

4 years ago

The following week the company was hired for a 225 mile move. If each truck traveled at hte same speed it has the previous week

iogann1982 [59]

I added a screenshot of the original question.

Now, first we will need to calculate the speed of each truck and then get the time that each of them will take to travel the 225 miles.
The basic rule that we will use for this question is:
velocity = distance / time

Part (a): getting the velocity of each truck:
For the large truck:
We are given that the truck took 4 hours to travel 180 miles. Therefore:
velocity of large truck = 180 / 4 = 45 miles/hour

For the small truck:
We are given that the truck took 3 hours to travel the same 180 miles. Therefore:
velocity of small truck = 180 / 3 = 60 miles/hour

Part (b): getting the time required for each truck to travel 225 miles:
For the large truck:
We have the distance = 225 miles and the velocity = 45 miles/hour. Therefore:
velocity = distance / time
time = distance / velocity = 225 / 45 = 5 hours

For the small truck:
We have the distance = 225 miles and the velocity = 60 miles/hour. Therefore:
velocity = distance / time
time = distance / velocity = 225 / 60 = 3.75 hours

8 0

3 years ago