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3 years ago

((3.55)^2+(4.12)^2+(4.41)^2)/2(3.55)*(4.12)

Mathematics

1 answer:

WINSTONCH [101]3 years ago

8 0

Answer:

((3.55)^2+(4.12)^2+(4.41)^2)/2(3.55)*(4.12)

Step-by-step explanation:

I just used this website called mathpapa.com, extremely useful for algebra calculations. Here's the link if you need it

https://www.mathpapa.com/algebra-calculator.html

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A child has 4 wooden blocks. How many different ways can she stack 3 of them into a tower?

faltersainse [42]

Answer:

Step-by-step explanation:

To find the number of different ways she can stack 3 of them in a tower, we need to use the formula:

$_{n}P_{k}=\dfrac{n!}{(n-k)!}$

n = 4

k = 3

$_{n}P_{k}=\dfrac{4!}{(4-3)!}$

$_{n}P_{k}=\dfrac{4!}{1!}$

$_{n}P_{k}=\dfrac{4*3*2*1!}{(1)!}$

$_{n}P_{k}=\dfrac{4*3*2*1!}{1}$

$_{n}P_{k}=\dfrac{24}{1}$

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3 years ago

Determine m∠1 in the triangle. 1.

AlexFokin [52]

Answer:

what is the question

Step-by-step explanation:

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3 years ago

Data is collected from a:

Naily [24]

A. I Believe because Data is collected by sample?

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3 years ago

What is the math sentence for 3.46 and 0.346

Gnesinka [82]

Answer:

3.46 in a fraction

340.60

Step-by-step explanation:

The decimal 0.346 equals 34.6%

To convert from decimal to percent, just multiply the decimal value by 100. In this example we have: 0.346 × 100 = 34.6% (answer).

➥ The ease way:

1) Move the decimal point two places to the right: 0.346 → 3.46 → 34.6.

2) Add a % sign: 34.6%

Answer: 34.6%

4 0

3 years ago

Read 2 more answers

It costs more to produce defective items - since they must be scrapped or reworked - than it does to produce non-defective items

Shtirlitz [24]

Answer:

1,082

Step-by-step explanation:

The sample size n in Simple Random Sampling is given by

$\bf n=\frac{z^2s^2}{e^2}$

where

z = 1.645 is the critical value for a 90% confidence level (*)

s = 2 is the estimated population standard deviation

e = 0.1 mm points is the margin of error

$\bf n=\frac{z^2s^2}{e^2}=\frac{(1.645)^2(2)^2}{(0.1)^2}=1,082.22\approx 1,083$

rounded up to the nearest integer.

So the manufacturer should test 1,083 parts.

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

(*)This is a point z such that the area under the Normal curve N(0,1) outside the interval [-z, z] equals 10% = 0.1

It can be obtained in Excel with

NORMINV(1-0.05,0,1)

and in OpenOffice Calc with

NORMINV(1-0.05;0;1)

5 0

3 years ago