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IgorC [24]
2 years ago
15

Additive area

Mathematics
1 answer:
igomit [66]2 years ago
8 0

B, 27 ft²

2*3 + 7*3 = 27

but for this one you could just actually count the tiles

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13. You buy a new monitor for your desktop computer for $295. The store charges 9% in sales tax. How much sales tax is added to
IgorLugansk [536]
13 = 295 x 9 % = 26.55

14= 295 + 26.55 = 321.55
8 0
3 years ago
In 2012, the population of Cincinnati, Ohio, was 296,550 with a population density of approximately 3800 people per square mile.
Airida [17]

Answer:

≈ 78mi^2

Step-by-step explanation:

To find approximate land area:

296,550/3,800 = 78.039

Round to nearest whole number:

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8 0
3 years ago
Haley’s work evaluating (Negative 2) Superscript 8 is shown below.
PSYCHO15rus [73]

Answer:

D

Step-by-step explanation:

<em>The statements are shown below:</em>

<em>A) She used the wrong number as a repeated factor and should have evaluated -2x2x2x2x2x2x2x2. </em>

<em>B) She used the wrong number as a repeated factor and should have evaluated -(8x8). </em>

<em>C) She misinterpreted the exponential form and should have multiplied -2 and 8. </em>

<em>D) She made a sign error when multiplying and should have had 256 as a final answer.</em>

<em />

<u>Solution:</u>

<u />

The problem to simplify is:

(-2)^{8}

Haley's steps are shown below:

(-2)^{8}=(-2)(-2)(-2)(-2)(-2)(-2)(-2)(-2)=-256

Generally,

(a)^b  is actually "a" multiplied "b" times.

So, Haley wrote "-2" eight times multiplied together. That is okay.

Now,

We are dealing with negative numbers.

  • When negative numbers are multiplied "odd" number of times, the answer is negative.
  • When negative numbers are multiplied "even" number of times, the answer is positive.

Haley wrote "-2" eight times, which is EVEN number of times, so the answer would be POSITIVE. But, Haley's answer is negative. Which is wrong. But "256" is right.

Haley's error is:

Answer choice D

6 0
3 years ago
Read 2 more answers
A group of geometry students wrote the following definitions
Grace [21]

Answer:

jennifer

Step-by-step explanation:

8 0
2 years ago
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Find an equation of the line satisfying the following conditions: Point (3,2);m= -5/6
Feliz [49]

Answer:

A

Step-by-step explanation:

y -2 = -5/6(x -3)

y-2 = -5/6x + 15/6

y = -5/6x + 27/6

y = -5/6x + 9/2

7 0
3 years ago
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