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Bess [88]
3 years ago
15

Pamela's age is two times Jiri's age. The sum of their ages is 84. What is Jiri's age?

Mathematics
1 answer:
Grace [21]3 years ago
4 0

Answer:

28

Step-by-step explanation:

28 times 2 = 56

28 times 1 = 28

56 + 28 = 84

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The table contains four statements. For which function below are four statements true?
Elena L [17]

I pretty sure the best answer would be f(x)=cbrt(27-x)

cbrt means cube root by the way.

8 0
3 years ago
Read 2 more answers
A measurement template with a historcal value of 25.500 is measured 27 times and a mean value of 25.301 is recorded. What is the
QveST [7]

Complete Question

A measurement template with a historical value of 25.500 mm is measured 27 times and a mean value of 25.301 mm is recorded. What is the percent bias when the tolerance is +/- 0.3?

Answer:

The percent bias is  B = 33.167 \%  

Step-by-step explanation:

From the question we are told that

   The historical value  is  S = 25.00 \ mm

   The number of times it is measured is  n  =  7  

    The mean value is  \= x = \frac{\sum x_i }{n} = 25.301 \ mm

    The tolerance is  t =\pm 0.3 = 0.3 - (-0.3) = 0.6

Generally the percent bias is mathematically represented as

      B = 100 * \frac{\= x - \tau }{ t}

=>  B = 100 * \frac{25.301 - 25.5000 }{0.6}

=>  B = 33.167 \%  

3 0
3 years ago
Whats the value of x and what is the length of side UW
solmaris [256]

We will calculate this by using ratios and because these two triangles are similar, which is very important.

Explanation:

We see that the FG = 9 corresponds to the VU = 21. Therefore, FH = 18 corresponds to the UW = x.

9 : 21 = 18 : x

x = (21*18)/9

x = 378/9

x = 42.

The correct answer is B. 42.

5 0
3 years ago
How do I find the volume of a prism?
frez [133]

Answer:

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Step-by-step explanation:

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Volume = L × W × H

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Prism 2:

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Width = 5 cm

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✔️Volume of the entire prism = 320 + 150 = 470 cm³

6 0
3 years ago
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Rus_ich [418]
a^2 - a - 20=\\
a^2-5a+4a-20=\\
a(a-5)+4(a-5)=\\
(a+4)(a-5)
7 0
3 years ago
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