MATHEMATICS HIGH SCHOOL

What is the 51st term of the sequence below? -7,2,11,20

What is the 22nd term of the sequence below?
-9,-3,3,9

Answers

Answer 1
Answer: first determine whether arithmetic sequence or geometric

both seem to be arithmetic

first one
adds 9
starts with -7
an=a1+(n-1)d
a1=first term
d=common difference
an=-7+9(n-1)
51 term is
a51=-7+9(51-1)
a51=-7+9(50)
a51=-7+450
a51=443

51term is 443




adds 6 every times
starts with -9
an=-9+6(n-1)
22nd term
a22=-9+6(22-1)
a22=-9+126
a22=117
22nt term is 117

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List the next four multiples of the fraction 2/5

Answers

4/5
6/5
8/5
10/5
Just keep adding 2 to the numerator
Since both 2 and 5 are prime numbers, there are no multiples for the fraction 2/5.

An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below. y = x + 15
y = −x + 8

Which of the following statements is a correct step to find x and y?

Multiply the equations to eliminate y.
Add the equations to eliminate x.
Write the points where the graphs of the equations intersect the x-axis.
Write the points where the graphs of the equations intersect the y-axis.

Answers

add the equations to eliminate x

Answer:

the answer is B. add all the equations to eliminate x. its true. i did the test and  i defiantly got it right.    (brainliest would b appreciated)

Step-by-step explanation:

Please help mee i don’t get these questions

Answers

I would've helped, but I don't see the questions. Where are they?

Evaluate e^4 to one decimal place.

Answers

Answer:

The e^(4)to one decimal is 54.6

Step-by-step explanation:

we need to calculate e^(4) to one decimal.

Since, e^(x)=1+(1)/(x!)+(x^(2))/(2!)+(x^(3))/(3!)+......     ....(1)

To calculate e^(4) , put x=4 in equation (1)

e^(4)=1+(1)/(4!)+(4^(2))/(2!)+(4^(3))/(3!)+......

e^(4)=1+(1)/(24)+(16)/(2)+(64)/(6)+......

simplify the above expression

e^(4)=1+(1)/(24)+(16)/(2)+(64)/(6)+(256)/(24)+(1024)/(120)......

calculate with the scientific calulator

< 0.1 =54.6

Hence, e^(4)to one decimal is 54.6
The answer is going to be the general form for e^x = 1 + x/(1!) + + x^2/(2!) + x^3/(3!) +.....,. till infinity so : e^4 = 1 + 4/1 + 16/ 2 + 64/6 + 256/24 + 1024/ 120 + 4096/720 + 16384/5040 +...till the fraction is<0.1 = 54.6

I hope this helps!

What is the ratio 1.12 turned in to a fraction in simplest form?

Answers

1.12=1 12/100=1 3/25 
         or 28/25

Suppose S and T are mutually exclusive events. Find P(S or T). P(S) = 20%, P(T) = 22%

Answers

S and P are mutually exclusive events.
P ( S ) = 20% = 0.20
P ( T ) = 22 % = 0.22
The probability of mutually exclusive events:
P ( S or T ) = P ( S ) + P ( T )
P ( S or T ) = 0.20 +0.22 = 0.42
Answer: The probability of ( S or T ) is 0.42 or 42 %. 

The probability of event S or event T is  42%.

What is the probability of event S or event T?

Mutually exclusive events are independent events. Independents events are events whose occurrence do not depend on each other.

The probability of event S or event T = 20 + 22 = 42%

To learn more about mutually exclusive events, please check: brainly.com/question/13075229

#SPJ5
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