The interval which describes the range of the provided function x^2 + 2 is negative infinity to two (-∞,2).
What is domain and range of function?
Domain of a function is the set of all the possible input values which are valid for that function. Range of a function is the set of all the possible output values which are valid for that function.
The given function is,
[tex]f(x) = x^2 + 2[/tex]
The domain of this function is all real numbers. As the quadratic function has the constant value of 2. The vertex of the function is at 0,-2. Thus, the range of this function is,
[tex]y\in R, y\geq -2[/tex]
Thus, the interval which describes the range of the provided function x^2 + 2 is negative infinity to two (-∞,2).
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A student decided to make random guesses for all the above 5 true/false questions. What is the probability of this student getting one or more correct answer
Answer: 25%
Step-by-step explanation:
The probability of getting at least one correct answer is 255/256 ≈ 0.996
The probability of getting exactly one correct answer is 5/256 ≈ 0.0195
What is probability?The probability is defined as the possibility of an event being equal to the ratio of the number of outcomes and the total number of outcomes.
As there are two possible results for each of the 5 questions, there are
2⁵ = 256 possibilities total.
To calculate the probability, then, we only need to know how many ways the student can get one correct answer.
The question's wording contains a small amount of uncertainty, therefore we will discuss both possibilities.
Probability of at least one correct answer:
There is only one way the student can have no correct answers, meaning there are 256 -1 = 255 ways the student can have at least one correct answer.
Thus, the probability of getting at least one correct answer is
255/256 ≈ 0.996
Probability of exactly one correct answer:
There are 5 ways the student can get exactly one correct answer
Thus, the probability of getting exactly one correct answer is 5/256 ≈ 0.0195
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What is the unit rate of a line that goes through the points (3,1)?
Answer:
3.
Step-by-step explanation:
3 divided by 1 equals 3.
Please mark me brainliest I need it!!!
16. Patrick turned out for the track team and lost 5.62 kilograms during the season. After the season
finished, he gained back 1.4 kilograms.
a. One of the decimals should be written as negative number. Which one is it and why?
b. Find the sum of the two numbers to determine the total change in Patrick's weight
Answer:
A: the 5.62 kilograms should be negative, since he is losing weight.
B: -5.62 + 1.4 is -4.22, which is how many kilograms Patrick lost in total.
Hope this helps :)
2x+5y=10
x intercept=
y intercept=
Answer:
x= 0/-8
y= 0/5
Step-by-step explanation:
Brain-List?
ldentify the location of the values used to create a box
plot.
A=
B=
C=
D=
E=
Answer:
A minimum
B Q1 ( first quartile )
C Median
D Q3 ( third quartile)
E maximum
Step-by-step explanation:
HOPED THIS HELPED YOU OUT! AND TO EVERYONE THAT NEEDS THE HELP WITH THIS QUESTION
have a GOD-LIKE day
Please choose all linear functions with slope that is greater than jamals linear function.
Answer:
a b
Step-by-step explanation:
x/5 = 8/9 what is x
Answer:
4.444444
Step-by-step explanation:
Can anyone help me out? That would be greatly appreciated!
B. SAS
Pretty much the way I look at it, there is one angle, and 2 sides beside it. Easiest way for me to explain.
Answer:
im not really sure but i believe the answer is B.SAS.
i also know It Not C.HS and D. non of the above.
The monthly electric bills in a certain community are normally distributed, with a mean of $245 and a standard distribution of $55. If there are 461 households in the community, about how many of them have electric bills less than $200?
A. 45
B. 21
C. 95
D. 81
95 households have electricity bills of less than $200. Option C is correct.
Given that,
The monthly electric bills in a certain community are normally distributed, with a mean of $245 and a standard distribution of $55. There are 461 households in the community, how many of them have electric bills less than $200 is to be determined.
Probability can be defined as the ratio of favorable outcomes to the total number of events.
probability for the number of households has electric bills less than $200.
x = 200 , μ = 245 ; σ = 55
Now,
Probability,
z (p < 200) = [tex]\frac{X -\mu}{\sigma}[/tex]
z (p < 200) = (200 - 245)/55
= --45/5
= -0.818181
p < 200 = 0.206 (from z table)
Now, the number of households that has electricity bill less than $200,
= 461 * 0.206
= 94.966
≈ 95
Thus, 95 number of household have electricity bills of less than $200. Option C is correct.
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Please help me with this.
help me please and you will be legend and nice
WILL GET BRAINLIEST AND POINTS PLS HELP
Answer:
D. -6
Step-by-step explanation:
frist elimnate the postive numbers because it is impossible if it was a positve number.
Then you have two numbers left, all you have to do is multiply each one by either 3 or -5.
so -10.3 is too big and -6 is just right
x = -6
what is 20 percent of 90?
Answer:
18
Step-by-step explanation:
Plzzzzzzz helppppppp
Answer:
a i think
Step-by-step explanation:
Answer:
Y = -5 + 5
Step-by-step explanation:
You can check the y intercept and it's a negative 5 slope
Help need this answer as as possible
Answer:
15.5
Step-by-step explanation:
I can help with this. He doesn't tell how many dollars she earned from her dad but tells you what is left. So we add 13.73 + 1.77
We add because She used to spend it and because she only gave us what was left. We want to push it to what it was before so we do the opposite.
13.73 + 1.77 = 15.5
I am not really sure of what the words are on the last part but i think u can figure it out. My answer is 15.5 but if you aren't asking for this just ignore it.
Your mother gave you $20 with which to buy a present. This covered 2/3 of the cost. How much did the present cost?
Answer:
$30
Step-by-step explanation:
Answer:
$30
Step-by-step explanation:
20 divided by (2/3) is 30.
Element X is a radioactive isotope such that every 40 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 110 grams, how much of the element would remain after 29 years, to the nearest whole number?
Answer:67 or 66.549674907
Step-by-step explanation:
Man women baby
solve for x.
x/6 =2
A.x=3
B.x=-12
C.x=12
Answer:
C. x=12
Step-by-step explanation:
7) Wnte a linear function in
slope intercept form that
passes through the point (2, 3)
and has a slope of 4
Damian has a mask collection of 500 masks he keeps 64% of the masks on his wall. How many masks does he keep on his walk?
Answer:
he has 320 masks on his wall
hellllllllpppppppppppppppppppppp
Answer:他の答えを別の答えに移すことができ、それからミーズビルへの答えを得ることができるとき、それは数学の問題だと自分に言い聞かせてください。
Step-by-step explanation:there
if Scott types 210 words in 5 minutes how many words can he type in a minute
Answer:
42
Step-by-step explanation:
210 divided by 5 is 42
Pls answer asp!!!! Pls
Answer:
C I think
Step-by-step explanation:
hope it's correct
Answer:
im 92.2% sure its A because 70 is what he had while 27 is after taking the 18 but i might be wrong so your better off with someone elses answer
Step-by-step explanation:
help me with this its super hard
Answer:
240
Step-by-step explanation:
Because you have to do length times with times height
12 times 10 times 2= 240
When a fair 6 sided dice is rolled, what is the probability that is will land on the five?
Answer:
1/6
Step-by-step explanation:
Only one of the six sides is a 5 on the die. So there is a 1/6 chance that it will land on it
2, 5, 8, 11, 14,... ... ... ....
a30
What’s the missing term
Answer:
17, 20, 23, 26, 29, 32,
Step-by-step explanation:
Answer:
17, 20, 23, 26, 29, 32, 35....
Step-by-step explanation:
cause that's how math was made
"don't have a good day, have a great day"
-Guy
plssss help due in 5 minutes
Answer:
-5 is the y intercept
Step-by-step explanation:
which of these is not a linear graph.
Answer:
D
Step-by-step explanation:
It isn't linear
Answer:
D)
Step-by-step explanation:
Linear graphs are straight they can be positive or negative but they do not have bending points in them.
I added a picture to help you
Which expression best estimates
– 184-2į?
O 18-3
-18-3
0-18-(-3)
O 18-(-3)
machine A covers 5/8 square feet in 1/4 hour or machine B covers 2/3 square feet in 1/5 hour
Answer:
The unit rate would be square footage covered in 1 hour. Since 5/8 square foot is the area covered in 1/4 hour, you would multiply by 4 to determine the amount of area covered in 1 hour:
5 x 4 = 20
8 1 8
20 is equivalent 2 and 1 square feet in 1 hour
8 2
Hope this helps! <3
Answer:
The unit rate would be square footage covered in 1 hour. Since 5/8 square foot is the area covered in 1/4 hour, you would multiply by 4 to determine the amount of area covered in 1 hour:
5 x 4 = 20
8 1 8
20/8 is equivalent 2 and 1/2 square feet in 1 hour
Step-by-step explanation:
there ya go