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2 years ago

Triangulation is a method of finding the location of an object based on

Mathematics

2 answers:

Zolol [24]2 years ago

5 0

The statement is true

Ulleksa [173]2 years ago

4 0

The answer will be true

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What is the reciprocal of 2 1/3?

Oksi-84 [34.3K]

Answer:

2 3/1

Step-by-step explanation:

.................

6 0

3 years ago

The length of a side of an equilateral triangle is x-4.5.First express it's perimeter as a sum. Next express its perimeter as a

LiRa [457]

The sides of an equilateral triangle are same. So if one of the sides is (x-4.5), all the sides are (x-4.5).
Let the sides are a=(x-4.5), b=(x-4.5), c=(x-4.5)

1. Perimeter(as sum) = a+b+c
 = (x-4.5)+(x-4.5)+(x-4.5)
 = x+x+x-4.5-4.5-4.5
 = 3x - 13.5
2. Perimeter (as product) = 3×a
= 3×(x-4.5)
= 3×x - 3×4.5
= 3x - 13.5
(you can write 3×b or 3×c also as a=b=c.)

Both perimeter as sum and perimeter as product are same as adding a number three times is the same as multiplying it by 3.

8 0

3 years ago

A company that makes shampoo wants to test whether the average amount of shampoo per bottle is 16 ounces. The standard deviation

S_A_V [24]

Answer:

The correct option is 16.041 ounces.

Step-by-step explanation:

A single mean test can be used to determine whether the average amount of shampoo per bottle is 16 ounces.

The hypothesis can be defined as:

H₀: The average amount of shampoo per bottle is 16 ounces, i.e. μ = 16.

Hₐ: The average amount of shampoo per bottle is different from 16 ounces, i.e. μ ≠ 16.

The information provided is:

$n=64\\\sigma=0.20\\\alpha =0.10$

We can compute a 90% confidence interval to determine whether the population mean is 16 ounces or not.

Since the population standard deviation is known we will compute the z-interval.

The critical value of z for 90% confidence interval is:

$z_{0.05}=1.645$

*Use a z-table.

Compute the 90% confidence interval for population mean as follows:

$CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}\\$

Since the sample size is quite large, according to the law of large numbers the on increasing the sample size, the mean of the sample approaches the whole population mean.

So, the 90% confidence interval estimate for sample mean is:

$CI=\mu\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}\\=16\pm 1.645\times \frac{0.20}{\sqrt{64}}\\=16\pm0.041125\\=(15.958875, 16.041125)\\\approx (15.959, 16.041)$

Thus, the correct option is 16.041 ounces.

3 0

3 years ago

The sum of a number and two times a smaller number is 62. Three times the bigger number exceeds the smaller number by 116.

g100num [7]

Answer:

the bigger number is 42

the smaller number is 10

Step-by-step explanation:

use algebra to denote:

let x be the bigger number

let y be the smaller number

x+2y=62...(1)

3x-y=116...(2)

x=62-2y...(1a)

substitute

3(62-2y)-y=116

186-6y-y=116

-7y=116-186

-7y=-70

y=-70/-7

y=10

therefore x is:

x=62-2(10)

x=62-20

x=42

8 0

3 years ago

H/108=7/18 Please answer proportion

Oliga [24]

Answer:

H = 42

Step-by-step explanation:

18 ÷ 108 = $\frac{1}{6}$

7 ÷ $\frac{1}{6}$ = 42

You can check to make sure your answer is right by entering your proportions into a calculator. For example, $\frac{42}{108}=0.38888888888...$ and $\frac{7}{18}$ also equals $0.38888888888...$ so since they match, we know it is correct.

Make sure you know how to do your proportions without Brainly, that way you don't flunk your next quiz/test!

7 0

3 years ago