3 years ago

Determine all intervals on which f(x) > 0.

Mathematics

1 answer:

8_murik_8 [283]3 years ago

4 0

Answer: [-7, -4]u[0, 3]

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The length of the rectangle below is (2x-3) and the width is (x+7). Find the area of the rectangle in terms of x.

Alex777 [14]

Answer:

area = 2x² - 17x - 21

Step-by-step explanation:

Area of the rectangle is:

area = (width*length)

area = (x+7)*(2x-3)

= x*2x + x*-3 + 7*2x + 7*-3

= 2x² - 3x - 14x - 21

= 2x² - 17x - 21

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3 years ago

A cube has a side length of 7 in. What is the volume of the cube? in3

Ivenika [448]

343in3 is the answer to this math question

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According to data from the state blood program, 40 percent of all individuals have group A blood. If six individuals give blood,

Serjik [45]

Answer: 0.27648

Step-by-step explanation:

Given : The proportion of all individuals have group A blood : p=0.040

Total individuals give blood : n= 6

Let X be the number of individuals have group A blood.

Since all individual are independent of each other.

$X\sim Bin(n=6, p=0.40)$

Formula : $P(X=x)=^nC_xp^x(1-p)^{n-x}$ , where n= sample size , p = probability of getting success in each trial.

The probability that exactly three of the individuals have group A blood. :

$P(x=3)= ^6C_3(0.40)^3(1-0.4)^3\\\\= \dfrac{6!}{3!3!}\times(0.40)^3(0.60)^3\\\\=0.27648$

The probability that exactly three of the individuals have group A blood. is 0.27648

8 0

3 years ago

The budget for a remake of a movie is 100 times the budget of the original movie. The original movie's budget was 10^5 dollars.

Arte-miy333 [17]

Answer:

100,000,000

Step-by-step explanation:

10*10=100*10=1000*10=10000*10=100000*10=1000000*100=100,000,000

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3 years ago

Every 2/3 hour, Harris can sew 1/6 pair of jeans. What is Harris's rate in pairs of jeans per hour?

STatiana [176]

Whole hour - 2/3 = 1/3

1/3 + 1/6 = 2/6 + 1/6
= 3/6

Harris can sew half of a pair of jeans per hour.

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3 years ago

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