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3 years ago

95% of 7-year-old children are between_inches and inches tall.

Mathematics

2 answers:

Advocard [28]3 years ago

8 0

Answer:

45 and 53 are the answer

Step-by-step explanation:

answered on edu

Lesechka [4]3 years ago

4 0

Answer: The answer is 46.5 inches to 49.5 inches.

Step-by-step explanation: We are to tell the height limits of a 7-year old child.

Various scientific experiment shows that the height of maximum 7-year old girl child lies between 46.5 inches and 49.4 inches and the height of maximum 7-year old boy child lies between 46.6 inches and 49.5 inches.

So, combining the height limits of girls and boys, we can say that the height limit of 95% 7-year old child lies between 46.5 inches and 49.5 inches.

Thus, the answer is 46.5 inches and 49.5 inches.

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A rocket is launched from a height of 3m with an initial velocity of 15 m/s at what time will the rocket be 13m from the ground?

dem82 [27]

Not sure of my answer but, velocity=delta d/delta t. t=delta d/ velocity
—> t=(13-3)/15=>10/15=2/3s

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2 years ago

You roll three die. what is the probability that 5 will not appear on the die?

castortr0y [4]

No of out comes =216
favorable outcome=3
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3 years ago

In the summer Brian saw 20 movies at the theater. in the fall he saw one fourth as many movies. Write an equation that shows how

laiz [17]

Heyyyyy, lets gather the required information....
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3 years ago

Factor 3a^3 + 18a² + 8a + 48 completely.

fomenos

Answer:

(3a2 + 8) • (a - 6)

Step-by-step explanation:

STEP 1:

Equation at the end of step 1

(((3 • (a3)) - (2•32a2)) + 8a) - 48

STEP 2:

Equation at the end of step 2:

((3a3 - (2•32a2)) + 8a) - 48

STEP 3:

Checking for a perfect cube

3.1 3a3-18a2+8a-48 is not a perfect cube

Trying to factor by pulling out :

3.2 Factoring: 3a3-18a2+8a-48

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: 8a-48

Group 2: -18a2+3a3

Pull out from each group separately :

Group 1: (a-6) • (8)

Group 2: (a-6) • (3a2)

-------------------

Add up the two groups :

(a-6) • (3a2+8)

Which is the desired factorization

Polynomial Roots Calculator :

3.3 Find roots (zeroes) of : F(a) = 3a2+8

Polynomial Roots Calculator is a set of methods aimed at finding values of a for which F(a)=0

It would only find Rational Roots that is numbers a which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 3 and the Trailing Constant is 8.

The factor(s) are:

of the Leading Coefficient : 1,3

of the Trailing Constant : 1 ,2 ,4 ,8

3 0

3 years ago

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lawyer [7]

Answer/Step-by-step explanation:

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