All categories

3 years ago

What is the value of x2 -9,when x = 10?

Mathematics

2 answers:

faust18 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

First you would switch out the x with 10. Then you would do 10*2-9, 10*2= 20, 20-9= 11, and that will give you 11 as your answer.

zalisa [80]3 years ago

7 0

Answer:

Step-by-step explanation:

hope this helps!

You might be interested in

I need help

agasfer [191]

(0,4) hope this helps

7 0

3 years ago

Read 2 more answers

Determine the sum of the arithmetic series: 5+18 +31 +44 + ... 161.

Finger [1]

Answer:

1079

Step-by-step explanation:

Hello,

18-5 = 13

31-18=13

44-31=13

161=5+13*12

So we need to compute

$\displaystyle \sum_{k=0}^{k=12} \ {(5+13k)}\\\\=\sum_{k=0}^{k=12} \ {(5)} + 13\sum_{k=1}^{k=12} \ {(k)}\\\\=13*5+13*\dfrac{12*13}{2}\\\\=65+13*13*6\\\\=65+1014\\\\=1079$

Thanks

3 0

4 years ago

What is the value of this expression?<br><br> (−4) to the fourth power

Alex_Xolod [135]

Good afternoon/evening.

-4^4 = four to the fourth power = (-4)(-4)(-4)(-4) = 256
Remember, when a negative is multiplied by a negative it equals a positive.

4 0

3 years ago

elect the proper interpretation of a confidence interval for a mean at a confidence level of C % . a range of values produced by

Gnesinka [82]

Answer:

a range of values such that the probability is C % that a rndomly selected data value is in that range

Step-by-step explanation:

complete question is:

Select the proper interpretation of a confidence interval for a mean at a confidence level of C % .

a range of values produced by a method such that C % of confidence intervals produced the same way contain the sample mean

a range of values such that the probability is C % that a randomly selected data value is in that range

a range of values that contains C % of the sample data in a very large number of samples of the same size

a range of values constructed using a procedure that will develop a range that contains the population mean C % of the time

a range of values such that the probability is C % that the population mean is in that range

4 0

3 years ago

What is the effect on the graph of the function f(x) = 2x when f(x) is replaced with f(x − 3 5 )? A) translate vertically 3 5 un

Arte-miy333 [17]

Answer:

Step-by-step explanation:

Translates horizontally 3.5 units right.

3 0

2 years ago