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jek_recluse [69]
4 years ago
10

Whats the sum of fifty-two and twenty

Mathematics
2 answers:
romanna [79]4 years ago
6 0
72 is the sum because that equals 72
Anastasy [175]4 years ago
5 0
Well, sum means addition, so I'm gonna add together 52 and 20.

52
20 +
--------

I start at the ones, and see that 2 + 0 is 2, so drop a 2 below them

52
20 +
--------
2

now, look at the tens place. we add together what we see in the tens place and put it below. 5+2 is 7, so we put that under 5 and 2.

52
20 +
------
72 we see that our final answer is 72, so the sum of 52 and 20 is 72.
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Find the inverse of the function
lozanna [386]

as you already know, to get the inverse of any expression we start off by doing a quick switcheroo on the variables and then solving for "y", let's do so.

\stackrel{h(x)}{y}~~ = ~~6\sqrt[3]{2x+5}-1\implies \stackrel{\textit{quick switcheroo}}{x~~ = ~~6\sqrt[3]{2y+5}-1} \\\\\\ x+1=6\sqrt[3]{2y+5}\implies \cfrac{x+1}{6}=\sqrt[3]{2y+5}\implies \left( \cfrac{x+1}{6} \right)^3=\left( \sqrt[3]{2y+5} \right)^3

\left( \cfrac{x+1}{6} \right)^3=2y+5\implies \left( \cfrac{x+1}{6} \right)^3-5=2y\implies \cfrac{\left( \frac{x+1}{6} \right)^3-5}{2}=y \\\\\\ \cfrac{\left( \frac{x+1}{6} \right)^3}{2}-\cfrac{5}{2}=y\implies \cfrac{~~ \frac{(x+1)^3}{6^3}~~}{2}-\cfrac{5}{2}=y\implies \cfrac{(x+1)^3}{432}-\cfrac{5}{2}=\stackrel{y}{h^{-1}(x)}

4 0
2 years ago
The 20<br> overseas investors own 19/25<br> of the business.
IRISSAK [1]

Answer:

5

Step-by-step explanation:

8 0
3 years ago
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nika2105 [10]

Ans

Step-by-step explanation:

4 0
3 years ago
In response to a gss question in 2006 about the number of hours spent per day watching television, the responses by the fifteen
NemiM [27]

Answer:

Standard error = 0.4

Step-by-step explanation:

Step 1

We find the Standard Deviation

The formula = √(x - mean)/n - 1

n = 15

Mean = 1.93 hours

= √(0- 1.93)² + (0-1.93)² +(0- 1.93)²+( 0- 1.93)²+ (1- 1.93)² + (1- 1.93)² +(1 - 1.93)² +(2 - 1.93)² + (2 - 1.93)² + (2 - 1.93)² + (2 - 1.93)² + ( 2 - 1.93)² +(4 - 1.93)² +(4 - 1.93)² + (5 - 1.93)²/15 - 1

= √(3.737777776 + 3.737777776 + 3.737777776 + 0.871111111 +0.871111111 + 0.871111111 + 0.004444444445+ 0.004444444445 + 0.004444444445 + 0.004444444445 + 0.004444444445 + 1.137777778 + 4.271111112 + 4.271111112 + 9.404444446)/15 - 1

= √2.352380952

= 1.533747356

Step 2

We find the standard error

The formula = Standard Deviation/√n

Standard deviation = 1.533747356

n = 15

= 1.533747356/√15

= 1.533747356 /3.87298334621

= 0.39601186447

Approximately = 0.4

Therefore, the standard error is 0.4

4 0
3 years ago
The ratio of adjacent sides of a rectangle is 4:5.Find the dimensions of the rectangle if its length is ( x+1)cm and the width i
kodGreya [7K]
Set an equation:

4/5=x-3/x+1
cross multiply

5x-15=4x+4

x=19

Width: 16 cm

Length: 20 cm

Find the perimeter and the area:

Perimeter: 16+16+20+20=72

Area: 20•16=320

Ratio: 320:72

Simplify the ratio:

40:9

Answer: The ratio of the area to the perimeter is 40:9.

7 0
3 years ago
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