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1 year ago

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One-stray Problem Solving

1 answer:

anygoal [31]1 year ago

3 0

A) 5000 m²
b) A(x) = x(200 -2x)
c) 0 < x < 100
Step-by-step explanation:
b) The remaining fence, after the two sides of length x are fenced, is 200-2x. That is the length of the side parallel to the building. The product of the lengths parallel and perpendicular to the building is the area of the playground:
A(x) = x(200 -2x)
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a) A(50) = 50(200 -2·50) = 50·100 = 5000 . . . . m²
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c) The equation makes no sense if either length (x or 200-2x) is negative, so a reasonable domain is (0, 100). For x=0 or x=100, the playground area is zero, so we're not concerned with those cases, either. Those endpoints could be included in the domain if you like.

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PLEASEE HELP!! I WILL MARK BRAINLIEST!

ycow [4]

The expression in scientific notation is given as follows:

3.5 x 10³.

<h3>What is scientific notation?</h3>

A number in scientific notation is given by:

$a \times 10^b$

With the base being $a \in [1, 10)$ .

For this problem, the expression is given by:

$\frac{5 \times 10^2 \times 4.2 \times 10^4}{6 \times 10^3}$

When two factors of a multiplication have the same base and different exponent, we <u>keep the base and add the exponents,</u> hence:

$10^2 \times 10^4 = 10^6$

5 x 4.2 = 21, hence the expression is:

$\frac{5 \times 10^2 \times 4.2 \times 10^4}{6 \times 10^3} = \frac{21 \times 10^6}{6 \times 10^3}$

When we divide two terms with the same base and different exponents, we keep the base and subtract the exponents, hence:

$\frac{21 \times 10^6}{6 \times 10^3} = 3.5 \times 10^3$

Which is the simplified expression.

More can be learned about scientific notation at brainly.com/question/16394306

#SPJ1

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1 year ago

A $250 item is reduced to $205. Find the percent discount

SOVA2 [1]

Answer:

18%

Step-by-step explanation:

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2 years ago

Read 2 more answers

Justin calculates the perimeter of a rectangle with a length of 2x-3 and width

n200080 [17]

Answer:

No

Step-by-step explanation:

No, because the perimeter of a rectangle is 2(x+y). Justin added the sides. Then he should have multiplied by 2 but he didn't so Justin is incorrect.

Hope this helps plz mark brainliest :D

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2 years ago

Read 2 more answers

*ANSWER CORRECTLY FOR MARK AS BRAINILISTE*

kkurt [141]

Answer: The Mean absolute deviation is 5. The mean is 10.

2 is 8 away from the mean.

5 is 5 away from the mean.

9 is 1 away from the mean.

10 is 0 away from the mean.

17 is 7 away from the mean.

19 is 9 away from the mean

Step-by-step explanation:

Hope this helps!

pls mark brainliest :)

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3 years ago

Katelyn wants to build a desk for her doll. Her actual desk is 3 feet tall. The scale is 0.5 in: 1 ft How tall will the doll des

velikii [3]

Each foot of the real desk will be 0.5 on the dolls desk.
3ft x 0.5 in per ft = 1.5 inches

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3 years ago