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3 years ago

Can someone please help me with these three questions?!! The subject is Algebra 2.

Mathematics

1 answer:

Burka [1]3 years ago

8 0

On January 1,1980 a city had 100,000 people.during the year 1,000 people died,2,000 babies were born 3,000 people moved out ,and 10,000 moved in.how many people were in the city by the end of 1980?

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Six boys are comparing their heights. Andy is taller than Dan but shorter than Ethan. Bill is taller than Ethan and Frank. Frank

Alexxx [7]

List of boys from tallest to shortest is: Bill, Frank, Ethan, Andy, Dan, Cory

<h3>Solution:</h3>

Given that Six boys are comparing their heights

The six boys are Andy, Dan, Ethan, Bill, Frank, Cory

To find: List the boys from tallest to shortest

Andy is taller than Dan but shorter than Ethan

So the arrangement goes like this:

Ethan

Andy

Dan

Bill is taller than Ethan and Frank:

So Bill is taller than ethan. Thus the arrangement from tall to short is made as:

Bill

Ethan

Andy

Dan

Also bill is taller than frank. So frank can be placed anywhere below bill

But given that Frank is taller than Ethan. So frank can be placed above ethan

Now the arrangement goes like this:

Bill

Frank

Ethan

Andy

Dan

Cory is shorter than Dan.

So cory can be placed below Dan.

Thus final arrangement from tallest to shortest boys are:

Bill

Frank

Ethan

Andy

Dan

Cory

5 0

3 years ago

A 9-foot piece of wood is cut into 6 equal sections.

Sholpan [36]

If you want a 9 foot piece of wood to be cut evenly into 6 sections, you’d divide 9 by 6 to get your answer which is 1.5 feet per section

8 0

3 years ago

In △ABC, ∠C is a right angle and sinB=725.

scoundrel [369]

9514 1404 393

Answer:

A 7/25

Step-by-step explanation:

The cosine of an angle is equal to the sine of its complement. In a right triangle, angle A is the complement of angle B. So, ...

cos(A) = sin(B)

cos(A) = 7/25

8 0

2 years ago

What two different expressions can be simplified to 3m-8?

ss7ja [257]

There are many ways a problem can be simplified. You can divide by the GCF (Greatest Common Factor) or even factor which depending on where you are in math you may or may not have learned. For your problem, I will use the first method.

3m-8 can be multiplied by any term (keep it simple):

2(3m-8) = 6m-16
4(3m-8) = 12m-32

Your answers should be 6m-16 and 12m-32.

6 0

2 years ago

over a two week period Julie had the following number of math homework problems given each day:20,0,7,10,11 0,25,15,1 find the m

kvv77 [185]

Mean: Add all the numbers and divide by the amount of numbers.

20 + 0 + 7 + 10 + 11 + 0 + 25 + 15 + 1 = 89
89/9 = 9.889 (rounded)

Mean = 9.889 (rounded)

Median: Reorder from least to greatest, and the middle number is the median.
0, 0, 1, 7, 10, 11, 15, 20, 25

The middle number is 7

Median = 7

Mode: The number that shows up the most.
Mode = 0, which shows up one time more than all the other numbers

Range: Subtract the greatest number with least number

25 - 0 = 25

Range = 25

hope this helps

3 0

2 years ago

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