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3 years ago

Find the missing side lengths given the perimeter.

Mathematics

2 answers:

lora16 [44]3 years ago

5 0

9514 1404 393

Answer:

y = 2.5 ft
4y = 10 ft

Step-by-step explanation:

The perimeter is the sum of the side length. Each of the sides shown has the same length as its opposite, so the perimeter is ...

P = 2(4y +y) = 10y

Using the given value for perimeter, we find y to be ...

25 ft = 10y

2.5 ft = y

Then the longer side is ...

4y = 4(2.5 ft) = 10 ft . . . . length of longer side

Leviafan [203]3 years ago

3 0

Answer:

Step-by-step explanation:

Perimeter=4y+4y+y+y

25=10y

We divide both sides with 10 => y=2,5

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To illustrate the importance of outliers, suppose you do not count the owner in the last problem. The data for the other

MA_775_DIABLO [31]

Answer:

<h2>The mean is 26666.67 and the standard deviation is 372919430.33.</h2>

Step-by-step explanation:

The mean means the average of the numbers.

The mean will be $\frac{25000\times5 + 27000\times3 + 34000}{5 + 3 + 1} = \frac{240000}{9} = 26666.666666666$ .

The differences of the earnings from the mean are 1666.67, 26997.33, 33997.33.

Squaring the numbers we get, 2777788.89, 728855827.13, 1155818447.12.

We need to find the mean of the above numbers to get the standard deviation.

Thus, the standard deviation is $\frac{2777788.89\times5 + 728855827.13\times3 + 1155818447.12}{9} = 372919430.33$ .

6 0

4 years ago

I know this is a lot of questions but i don't understand please help

Liula [17]

Answer:

21.C

23.B

24.D

Step-by-step explanation:

Domain is x

Range is y

If you can find a relation between x and y, that relation is a function.

In 21,

I. y = 0.x +5

II. Nothing.

III. y = x

In 22,

15 birdhouses needed to be built, then domain is from 0 - 15

In 23,

Try to insert x in to f(x) you will find out f(x), for i.e : x = 0, f(x) = 0.10 x 0 +5 =5.

5 0

3 years ago

Read 2 more answers

Angle measures 82.6° less than the measure of its supplementary angle. What is the measure of each angle

DaniilM [7]

Answer:

131.3°, 48.7°

Step-by-step explanation:

Let x represent the larger angle. Then x-82.6 is the smaller one. Their sum is ...

x +(x -82.6) = 180

2x = 262.6

x = 131.3

x -82.6 = 48.7

The two angle measures are 48.7° and 131.3°.

4 0

3 years ago

What is 328.1 × 0.63 what answer

alexdok [17]

Answer:206.703

Step-by-step explanation: you have to multiply 328.1 times 0.63 then you get your answer.

4 0

3 years ago

Read 2 more answers

A student in Greece discovers a pottery bowl that contains 28% of its original amount of C-14 find the age of the pottery bowl t

Andreyy89

Answer:

The age of the pottery bowl is 10523 years.

Step-by-step explanation:

Amount of substance:

The amount of a substance after t years is given by the following equation:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial amount and r is the decay rate.

Half-life of C14.

Researching, the half-life of c-14 is 5730 years.

This means that:

$A(5730) = 0.5A(0)$

We use this to find r. So

$A(t) = A(0)(1-r)^t$

$0.5A(0) = A(0)(1-r)^{5730}$

$(1-r)^{5730} = 0.5$

$\sqrt[5730]{(1-r)^{5730}} = \sqrt[5730]{0.5}$

$1 - r = 0.5^{\frac{1}{5730}}$

$1 - r = 0.99987903922$

$A(t) = A(0)(0.99987903922)^t$

Age of the pottery bowl:

We have that:

$A(t) = 0.28A(0)$

We have to find t. So

$A(t) = A(0)(0.99987903922)^t$

$0.28A(0) = A(0)(0.99987903922)^t$

$(0.99987903922)^t = 0.28$

$\log{(0.99987903922)^t} = \log{0.28}$

$t\log{0.99987903922} = \log{0.28}$

$t = \frac{\log{0.28}}{\log{0.99987903922}}$

$t = 10523.1$

The age of the pottery bowl is 10523 years.

6 0

3 years ago