3 years ago

Find the area of the composite shape

Mathematics

1 answer:

Contact [7]3 years ago

4 0

Answer:

Step-by-step explanation:

We can simply subtract the area of the small square from the area of the rectangle

A=8(12)-4(4)

A=96-16

A=80cm^2

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If f(3) = 3(x+5+2, what is f(a+ 2)?

Mamont248 [21]

Solution:

f(3) = 3(x + 5 + 2)

f(3) = 3(3 + 5 + 2)

f(3) = 3(10)

f(3) = 30

Substitute 30 for a:

f(30 + 2)

f(32)

Best of Luck!

8 0

3 years ago

Find the value of x by factoring x^2-9x-36=0

Citrus2011 [14]

(x+12)(x-3) Try this answer hopefully it is correct.

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2 years ago

Suppose that prices of recently sold homes in one neighborhood have a mean of $265,000 with a standard deviation of $9300. Using

Hatshy [7]

Answer:

Range = (237100, 292900)

Step-by-step explanation:

Using Chebyshevs Inequality:

$P(|X - \mu | \le k \sigma )\ge 1 -\dfrac{1}{k^2}= 0.889$

$1 -\dfrac{1}{k^2}= 0.889$

$\dfrac{1}{k^2}= 1- 0.889$

$\dfrac{1}{k^2}=0.111$

$k = \sqrt{\dfrac{1}{0.111}}$

$k \simeq 3$

Thus, 88.9% of the population is within 3 standard deviation of the mean with the Range = μ ± kσ

where;

μ = 265000

σ = 9300

Range = 265000 ± 3(9300)

Range = 265000 ± 27900

Range = (265000 - 27900, 265000 + 27900)

Range = (237100, 292900)

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3 years ago

A researcher wishes to find out whether giving a student $1 million in cash will improve or ruin the student's grades in school.

shepuryov [24]

Answer:

Harry,Greta,William,Hiroshi

Step-by-step explanation:

Apex :)

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3 years ago

(x + 3)/(3x - 2) - (x - 3)/(3x + 2) = - 22/(9x ^ 2 - 4)

ICE Princess25 [194]

Answer:

x = -1

Step-by-step explanation:

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3 years ago