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3 years ago

Im confused about this darn question can someone please solve it for me

Mathematics

1 answer:

n200080 [17]3 years ago

3 0

Answer: The answer is A : 6x^2+24x+24

Step-by-step explanation:

(2x+4)(3x+6)

multiple the two equations together

2x*3x=6x^2

2x*6=12x

4*3x=12x

4*6=24

combine like terms

6x^2+12x+12x+24

6x^2+24x+24

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Apex Learning Study 4.2.1 What units do you use to report the area of a circle with a radius of 50 feet?

klasskru [66]

Answer:

<h3> in square feet</h3>

Step-by-step explanation:

Area of anything is<u> allways </u>reported <u>in square units</u>. Usually that is square of given unit because it's the simplest way:

R = 50 ft

A = πR² = π•(50 ft)² = π • 50 ft • 50 ft = 2500π ft² ≈ 7854 ft²

{Of course you can re-calculate the units, ex.:

3 feet = 1 yard so 50 ft = 50/3 yd then

A = πR² = π•(50/3 yd)² = π • 50/3 yd • 50/3 yd = 2500/9 π yd² ≈ 872.7 yd² }

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2 years ago

What is 20.30 - 19.70 and what are the solving steps?

DIA [1.3K]

Answer

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Step-by-step explanation:

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2 years ago

Read 2 more answers

A college has a 30% completion rate, meaning that 30% of all students who start at the college complete the goal they set. The p

RSB [31]

Answer:

45%

Step-by-step explanation:

For simplicity, let use assume there are 100 students in the school.

No. of students to complete college = (30/100) x 100 = 30 Students

President wants to increase by 50% = (50/100) x 30 = 15 Students

New set goal = 30 + 15 = 45 students.

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Therefore;

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2 years ago

Kerry writes a list of all the integers from 1 to n on a whiteboard. She uses the digit 0 five times and the digit 9 six times.

patriot [66]

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2 years ago

Consider a large shipment of 400 refrigerators, of which 40 have defective compressors. If X is the number among 15 randomly sel

Vlad [161]

Answer:

The required probability is 0.94

Step-by-step explanation:

Consider the provided information.

There are 400 refrigerators, of which 40 have defective compressors.

Therefore N = 400 and X = 40

The probability of defective compressors is:

$\frac{40}{400}=0.10$

It is given that If X is the number among 15 randomly selected refrigerators that have defective compressors,

That means n=15

Apply the probability density function.

$P(X=x)=^nC_xp^x(1-p)^{n-x}$

We need to find P(X ≤ 3)

$P(X\leq3) =P(X=0)+P(X=1)+P(X=2)+P(X=3)\\P(X\leq3) =\frac{15!}{15!}(0.1)^0(1-0.1)^{15}+\frac{15!}{14!}(0.1)^1(1-0.1)^{14}+\frac{15!}{13!2!}(0.1)^2(1-0.1)^{13}+\frac{15!}{12!3!}(0.1)^3(1-0.1)^{12}\\$

$P(X\leq3) =0.944444369992\approx 0.94$

Hence, the required probability is 0.94

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2 years ago