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3 years ago

The picture shows a feeding trough that is shaped like a right prism. (Picture is shown at the bottom!!)

Mathematics

1 answer:

AlexFokin [52]3 years ago

4 0

Height of the trapezoids = sqrt (17^2 - 8^2) = 15cms
base = 19 cms

(b) area of each trapezoid = 15/2 (35 + 19) = 405 cm^2

Total area painted blue = 2*405 = 810 cm^2

(c) length of the edges of one trapezoid = 35 + 19 + 2(17) = 88 cms
So one piece of sandpaper ( can sand up to 80 cm) will not be enough to sand all of the edges.

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Help solve this plsss fast!!!

exis [7]

Answer:

$2x + x + 5 = 6x - 3x + 5$

$3x + 5 = 3x + 5$

Here Both the side of equation are same ..

So, it have infinite solution....

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2 years ago

How many solutions does the equation have 4x + 3=2(2x +9)

lbvjy [14]

I guess no solution
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3 years ago

Which of the following statement is true?

Natasha_Volkova [10]

Answer:

C is correct

Step-by-step explanation:

10x³+2x²+0x-11

+0x³+9x²+2x-2

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3 years ago

Last year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume

Arisa [49]

Answer: The mean number of checks written per day $=0.3452$

Standard deviation $=0.5875$

Variance $=0.3452$

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then 1 year = 365 days

Let the random variable x represent the number of checks he wrote in one day.

Then , the mean number of checks wrote by person each days id=s given by :-

$\lambda=\dfrac{126}{365}\approx0.3452$

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. $\sigma^2=\lambda=0.3452$

Standard deviation : $\sigma=\sqrt{0.3452}=0.5875372328\approx0.5875$

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3 years ago

18.

chubhunter [2.5K]

A bakers dozen is 12 which would be $0.41 for each cookie. If you meant 13, it would be $0.38. All you have to do is divide 4.94 by the amount of cookies

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3 years ago