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3 years ago

Build the equation then solve it, Step by step explanation please

Mathematics

1 answer:

MrMuchimi3 years ago

8 0

Answer:

well

1- k=24

2- ?

3- z = 1080

note:

use the additive inverse to find the 1 z

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Simplify 5a+6a2+7a-4a2-9a

Mice21 [21]

Answer:

2a to the second power + 3a

Step-by-step explanation:

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3 years ago

Find the sum of the first 9 terms of the sequence. Show all work for full credit.

Kamila [148]

We can see the sequence goes by decreasing 9 on each number

so the numbers are

2, -7, -16, -25, -34, -43, -52, -61, -70

so adding all these numbers we get

2-7-16-25-34-43-52-61-70

= -306

hope this helped

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3 years ago

157/14 written as a Mixed number

Korvikt [17]

Answer:

11 3/14

Step-by-step explanation:

3 0

3 years ago

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Please help this makes no sense to me

Whitepunk [10]

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3 years ago

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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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