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3 years ago

Can someone please answer this question please answer it correctly and lease show work please help me I need it

Mathematics

1 answer:

attashe74 [19]3 years ago

3 0

Answer:

Step 2

Step-by-step explanation:

$3-(-5)-7\\=3+5-7\\=3-2\\=1$

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A team is excavating an archeological site. The original plan was to excavate a rectangular area 35 ft long

nikitadnepr [17]

Answer:

Part 1) The length of the new rectangle is $87.5\ ft$

Part 2) The area of the new rectangle is $4,375\ ft^{2}$

Step-by-step explanation:

we know that

If two rectangles are similar, then the ratio of its corresponding sides is proportional

step 1

Find the length of the new rectangle

Let

L-----> the length of the new rectangle

$\frac{50}{20}=\frac{L}{35}\\ \\ L=50*35/20\\ \\L=87.5\ ft$

step 2

Find the area of the new rectangle

we know that

The area of the rectangle is

$A=LW$

we have

$L=87.5\ ft$

$W=50\ ft$

substitute

$A=(87.5)(50)=4,375\ ft^{2}$

3 0

3 years ago

3. A rumour is being spread in a community that the president is going to retire before the next election 2015. Initially 2 peop

Vera_Pavlovna [14]

Answer:

I'm not sure if that's what is meant cuz the text is a little ambiguous

Nevertheless, 62 people

Step-by-step explanation:

Amount = 2 + 4 + 8 + 16 + 32 =62 people

"Exponential Growth"

4 0

3 years ago

Read 2 more answers

Keith as 11/12 hours to play, he has already played 1/4. which is the best estimate of the fractional part of an hour he has lef

____ [38]

Answer:

The best estimate is greater than 1/2 but less than 3/4

Step-by-step explanation:

If you multiply 1/4 by 3/3 (which is also 1), you can change the denominator without changing the value. So 1/4 is equal to 3/12.

Since keith has 11/12 hours to play, and he has already played 3/12 hours, subtract 3/12 from 11/12 to get 8/12 hours. This is how much time he has left to play.

If you simplify 8/12 hours, you get 2/3 hours.

So the best estimate would be: greater than 1/2 but less than 3/4.

4 0

3 years ago

What is the range of the relation[(-5,0),(-4,-3),(-3,4),(-1,0),(-4,-1)]

vesna_86 [32]

The range is the set of values that the relation takes for the domain for which it is defined.

Is the set of values of the dependent variable.

In this case, we have the relation [(-5,0),(-4,-3),(-3,4),(-1,0),(-4,-1)].

The dependant variable takes the values: 0, -3, 4, 0 and -1. Some values are repeated.

We put the repeated values only once and sort to write the range.

Then, the range is R = {-3, -1, 0, 4}.

Answer: Range = {-3, -1, 0, 4}

4 0

1 year ago

Phân tích thành nhân tử <br> 3+√5 +3√5 +5

Lyrx [107]

Step-by-step explanation:

3+√5+3√5+5

=6√5+5

=6√10

3 0

3 years ago