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DochEvi [55]
3 years ago
15

If the mean of 20, y, 10,5,15 is 22 find the value of y​

Mathematics
1 answer:
QveST [7]3 years ago
8 0
Looks like 14.4 because you have to add them all together and divide by the total numbers
(20+22+10+5+15)/ 5
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Given the figure below, calculate the area
Aleksandr [31]

Answer:

<em>1+√3</em>

Step-by-step explanation:

Area of the triangle = 1/2 * base * height

Area of the triangle = 1/2 * AC * BD

We need to get AC

AC = AD+DC

Get base AD using SOH CAH TOA

tan 45 = 4/AD

AD = 4/tan45

AD = 4/1

AD = 4

Get DC

tan 30 = 4/DC

DC = 4/tan 30

DC = 4/(1/√3)

DC = 4√3

AC = 4 + 4√3

AC = 4(1+√3)

Get the Area of the triangle

<em>Area = 1/2 * 4 *  4(1+√3)</em>

<em>Area of the triangle = 1+√3</em>

6 0
3 years ago
Copy the shape and fill in the missing angle. Sow the work. Thanks.
Otrada [13]

Answer:

x = -11

Step-by-step explanation:

Hello There!

create an equation

x + 51 + 60 + 80 = 180

combine like terms

51 + 60 + 80 = 191

x + 191 = 180

subtract 191 from each side

180 - 191 = -11

we're left with

x = -11

6 0
3 years ago
The area of a swimming pool is 120 sq meters. The width of the pool is 8 meters. what is the length of the pool in centimeters ?
Genrish500 [490]
120/8 = 15m
15m = 150cm
Answer 150cm
3 0
3 years ago
The range of the following relation R {(3, −2), (1, 2), (−1, −4), (−1, 2)}
Oxana [17]
I think the rang numbers are -2 , 2 , -4 , and 2. i hope that correct.
8 0
3 years ago
Evaluate<img src="https://tex.z-dn.net/?f=10%5E%7B6%7D" id="TexFormula1" title="10^{6}" alt="10^{6}" align="absmiddle" class="la
katovenus [111]
121,000,000,000
this is because:
10^6= 1,000,000
10^3= 1,000
121^1= 121
3 0
3 years ago
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