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qwelly [4]
3 years ago
9

PLZ PLZ PLZ HELPME ​

Mathematics
1 answer:
choli [55]3 years ago
4 0

Answer:

30.01

Step-by-step explanation:

2.1^2 + 25.6

= 4.41 + 25.6

= 30.01

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An n-digit number is a positive number with exactly n digits. Nine hundred distinct n digit numbers are to be formed using only
kolbaska11 [484]

\underbrace{3\cdot3\cdot3\cdot\ldots}_{n}\geq900\\\\
3^n\geq900\\\\
\log_3 3^n\geq \log_3900\\\\
n\geq \log_3900\\\\
n\geq\dfrac{\ln 900}{\ln 3}(\approx6.2)

So, the least n is 7.

5 0
3 years ago
Find the percentage of data points that lie between -3.01 and 2.61?<br> z= (x-u) /o
Marat540 [252]

Answer:

To find the percetage of data points that lie between the points -3.01 and 2.61, on a normal distribution we're going to need the help of a calculator. The result is: 99.42%

Attached you will find the graph that represents the result.

6 0
3 years ago
The polygons below are similar. Find the value of y.
elena-14-01-66 [18.8K]

Answer:

Im sorry bro but there's no picture

Step-by-step explanation:

7 0
4 years ago
A cone has a surface area of 200 pi square inches. If the radius of the
Helen [10]

Answer:

20\:\mathrm{in}

Step-by-step explanation:

The lateral surface area of a cone is given by A=\pi r\ell, where r is the radius of the base of the cone and \ell is the cone's slant height.

Solving for \ell:

200\pi=10\pi\ell,\\\ell=\frac{200\pi}{100\pi}=\boxed{20\:\mathrm{in}}

*Note: It is implied that the surface area of 200 pi square inches is lateral surface area and not total surface area, because it is impossible to obtain a total surface area of 200 pi with a radius of 10 inches.

5 0
3 years ago
Find the value of the expression 3+4r+n3 n=1 and r=2
mr_godi [17]

Answer:

14

Step-by-step explanation:

I'll show you how I did it.

3+4r+n3=?

3+(4*r)+(n*3)=?

3+8+3=?

11+3=14

7 0
3 years ago
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