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4 years ago

How to write the of the cube of a number and 27 in algebraic expression?

Mathematics

2 answers:

Usimov [2.4K]4 years ago

8 0

should be:

x^3 + 27

hope it helps

Korolek [52]4 years ago

4 0

Should be iam not sure but it should be x^3+27

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In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n

Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

$14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)$

is the required confidence interval for the true mean length of rods.

3 0

3 years ago

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Assume that lines that appear to be tangent are tangent o is the center of the circle

Greeley [361]

Attached is answer .............

8 0

3 years ago

A truck whose bed is 2.5m long, 1.5m wide, and 1.0m high is delivering sand for a sand-sculpture competition. About how many tri

Flura [38]

Answer:

68.6 Trips

Step-by-step explanation:

2.5m+1.5m+1.0=5

5m per trip

7m^3=343

divide the amount that can fit in each trip (5m)

by the amount of sand needed for the sculpture. (343m)

343 /5=68.6

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4 years ago

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A stack of 6 gift boxes is 12.36 inches high. What is<br> the height of 32 gift boxes?

Rom4ik [11]

Answer:

Step-by-step explanation:

Discussion

6 gift boxes are 12.36 inches high

32 gift box are x inches high

This is a proportion question. A proportion is made of 2 equal ratios. If you know 3 parts of the proportion, you can solve for the 4th,

6/32 = 12.36/x Cross multiply

6x = 12.36 * 32 Combine the right.

6x = 395.52 Divide by 6

6x/6 = 395.52/6

x = 65.92

Answer: 65.92

Note

Using a proportion saves you the trouble of finding 1 box and multiplying whatever number you get by 32

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2 years ago

80 yd<br> 18 yd<br> 16) What is the length of the hypotenuse?

Sloan [31]

Assuming that 80 and 18 are the legs, the hypotenuse is 82yds.

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3 years ago