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Law Incorporation [45]
3 years ago
10

(2 x 10*)(5.7 x 10°) ^x =​

Mathematics
1 answer:
sineoko [7]3 years ago
8 0

Answer:

20 x 57^x / 10^x

Step-by-step explanation:

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The number of students in high school has been increasing linearly since 1990. In 1997, there were 1125 students and in 2000, th
Law Incorporation [45]

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(x-1990)×25

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

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3 years ago
2.<br>2x2 + 2x - 112 factor​
Angelina_Jolie [31]

Answer:

Use order of operation

Step-by-step explanation:

7 0
3 years ago
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Consider a t distribution with 7 degrees of freedom. Compute P(-1.29 &lt; t &lt; 1.29). Round your answer to at least three deci
ss7ja [257]

Answer:

a) 0.76197086

b) -1.73406361

Step-by-step explanation:

a)

Consider a t distribution with 7 degrees of freedom. Compute P(-1.29 < t < 1.29)

P(-1.29 < t < 1.29) would be the area under the t distribution curve with 7 degrees of freedom between -1.29 and 1.29, that is in the interval (-1.29, 1.29).

This can be done the old style by looking up in a table or by using the technology with a spreadsheet.

In Excel, the function TDIST(x,n,2) with x>0 gives the area outside the interval (-x, x) of the t distribution with n degrees of freedom.

So TDIST(1.29,7,2) gives the area outside (-1.29, 1.29).

If we subtract this value from 1 we get the desired result

Hence  

P(-1.29 < t < 1.29) = 1 - TDIST(1.29,7,2) = 1 - 0.23802914 = 0.76197086

In OpenOffice Calc, the function is the same replacing “,” with “;”  

That is

P(-1.29 < t < 1.29) = 1 - TDIST(1.29;7;2) = 0.76197086

b)

Consider a t distribution with 18 degrees of freedom. Find the value of c such that P(t≤ c) = 0.05

We are looking for a point c such that the area of the t distribution with 18 degrees of freedom to the left of c is 0.05

In Excel, the inverse function of TDIST is TINV.  

TINV(p*2,n) with p>0 gives the point c such that the area of the t distribution with n degrees of freedom to the right of c is p.  

Since <em>the t distribution is symmetric with respect to 0</em>, -c would be a point such that the area to the left of -c is p.

So we want to compute  in Excel

-TINV(0.05*2,18) = -1.73406361

In OpenOffice Calc  

-TINV(0.05*2;18) = -1.73406361

3 0
3 years ago
I WILL GIVE BRAINLY! PLEASE HELP!
marysya [2.9K]

Answer:

he expression is undefined where the denominator equals

0

, the argument of an even indexed radical is less than

0

, or the argument of a logarithm is less than or equal to

0

.

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Step-by-step explanation:

5 0
3 years ago
If you dont know what 3x4= its 12
Marysya12 [62]

Answer:

thanks im not smart

Step-by-step explanation:

sn i knew that...

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2 years ago
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