All categories

3 years ago

The drawing shows a concrete walkway around a pool. what is the total area of the concrete?

Mathematics

2 answers:

vodomira [7]3 years ago

8 0

Answer:

Hence, area of concrete is: 165 ft^2.

Hence, option: A is the correct answer.

Step-by-step explanation:

We have to find the total area of the concrete.

The area of concrete is given by:

Area of rectangle ( with dimensions 25 ft × 13 ft. )- Area of rectangle ( with dimensions 20 ft. × 8 ft. )

Hence,

Area of rectangle with dimensions 25 ft × 13 ft. is

25×13=325 ft^2.

Also area of rectangle with dimensions 20 ft. × 8 ft. is:

20×8=160 ft^2.

Hence, area of concrete is calculated as:

325 ft^2-160 ft^2=165 ft^2.

Hence, option: A is the correct answer.

Hence, area of concrete is: 165 ft^2.

Verizon [17]3 years ago

3 0

25 x 13 = 325

20x 8 = 160

325-160 = 165 square feet

answer is A

You might be interested in

HELP !!!!!!MEEEEEEEEEEEE!!!!!!!!!!

LUCKY_DIMON [66]

Answer: Ray B

Step-by-step explanation:

5 0

3 years ago

Sean and Leah are playing a computer game. Sean scored 72,491points. Leah scored 19,326 points more than Sean.How many points di

natita [175]

72,491 + 19,326 = 91,817
Leah scored 91,817 points

4 0

3 years ago

Read 2 more answers

Consider a uniform distribution from aequals4 to bequals29. (a) Find the probability that x lies between 7 and 27. (b) Find th

weeeeeb [17]

Answer:

a) 80% probability that x lies between 7 and 27.

b) 28% probability that x lies between 6 and 13.

c) 44% probability that x lies between 9 and 20.

d) 28% probability that x lies between 11 and 18.

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value x between c and d, in which d is larger than c, is given by the following formula.

$P(c \leq x \leq d) = \frac{d - c}{b - a}$

Uniform distribution from a = 4 to b = 29

(a) Find the probability that x lies between 7 and 27.

So $c = 7, d = 27$

$P(7 \leq x \leq 27) = \frac{27 - 7}{29 - 4} = 0.8$

80% probability that x lies between 7 and 27.

(b) Find the probability that x lies between 6 and 13. 

So $c = 6, d = 13$

$P(6 \leq x \leq 13) = \frac{13 - 6}{29 - 4} = 0.28$

28% probability that x lies between 6 and 13.

(c) Find the probability that x lies between 9 and 20.

So $c = 9, d = 20$

$P(9 \leq x \leq 20) = \frac{20 - 9}{29 - 4} = 0.44$

44% probability that x lies between 9 and 20.

(d) Find the probability that x lies between 11 and 18.

So $c = 11, d = 18$

$P(11 \leq x \leq 18) = \frac{18 - 11}{29 - 4} = 0.28$

28% probability that x lies between 11 and 18.

3 0

3 years ago

If 3x - 2 (4x - 8) = 16 , then x = 0.<br> True<br> False

Andrew [12]

Answer:

try your best

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=9%5C%3A%20%20%5C%3A%20%20%5Cfrac%7B%20%5Csin%28%20%5Ctheta%29%20%7D%7B1%20%2B%20%20%5Ccos%28%2

PIT_PIT [208]

Option (b) is your correct answer.

Step-by-step explanation:

$\large\underline{\sf{Solution-}}$

Given Trigonometric expression is

$\rm :\longmapsto\:\dfrac{sin\theta }{1 + cos\theta }$

So, on rationalizing the denominator, we get

$\rm \: = \: \dfrac{sin\theta }{1 + cos\theta } \times \dfrac{1 - cos\theta }{1 - cos\theta }$

We know,

$\purple{\rm :\longmapsto\:\boxed{\tt{ (x + y)(x - y) = {x}^{2} - {y}^{2} \: }}}$

So, using this, we get

$\rm \: = \: \dfrac{sin\theta (1 - cos\theta )}{1 - {cos}^{2}\theta }$

We know,

$\purple{\rm :\longmapsto\:\boxed{\tt{ {sin}^{2}x + {cos}^{2}x = 1}}}$

So, using this identity, we get

$\rm \: = \: \dfrac{sin\theta (1 - cos\theta )}{{sin}^{2}\theta }$

$\rm \: = \: \dfrac{1 - cos\theta }{sin\theta }$

<u>Hence, </u>

$\\ \red{\rm\implies \:\boxed{\tt{ \rm \:\dfrac{sin\theta }{1 + cos\theta } = \: \dfrac{1 - cos\theta }{sin\theta } }}} \\$

3 0

2 years ago

Read 2 more answers