Answer:D
Step-by-step explanation:Multiply x and 3x to get 3x^2 which is the first part, then multiply x and -3 to get -3x then and that to 2 times 3x which get you 3x bc -3x + 6x is 3x, and for the last part, multiply 2 and -3 to get -6 so your answer will be 3x^2+3x-6
Pls help extra points
Answer:
the mode is 2
Step-by-step explanation:
Which of the following statements is true of an essay's conclusion?
a.) It provides new evidence to support your argument.
b.) It hooks your reader.
c.) It includes the first statement of your thesis.
d.) It creates a sense of completeness.
Hope has 3 pencils, 5 pens, and 7 erasers. Which fraction represents the
number of pens she has to the total number of school supplies?
Answer:
1/3
Step-by-step explanation:
Answer:
Hence, your answer is 1/3.
Brainliest would be appreciated!!!!
help :( math due tonight
A university researcher wants to estimate the mean number of novels that seniors read during their time in college. An exit survey was conducted with a random sample of 9 seniors. The sample mean was 7 novels with standard deviation 2.29 novels. Assuming that all conditions for conducting inference have been met, what is a 95 percent confidence interval for the population mean number of novels read by all seniors?
Answer:
(5.240 ; 8.760)
Step-by-step explanation:
Given :
Sample mean, xbar = 7
Standard deviation, s = 2.29
Sample size, n = 9
95% confidence interval for the population mean :
Confidence interval :
Xbar ± Margin of error
Margin of Error = Tcritical * s/sqrt(n)
Tcritical at 0.05 ; df = 8 = 2.306
Margin of Error = 2.306 * 2.29/sqrt(9)
Margin of Error = 1.760
Lower boundary = (7 - 1.760) = 5.240
Upper boundary = (7 + 1.760) = 8.760
(5.240 ; 8.760)
A number is five more than three times another number. The sum of the two numbers is 33. Equation X plus 3X +5+352 find the value
Answer:
the number is 26
Step-by-step explanation:
x+3x+5=33
4x+5=33
4x=28
x=7
3(7)+5=26
The report "The New Food Fights: U.S. Public Divides Over Food Science" states that younger adults are more likely to see foods with genetically modified ingredients as being bad for their health than older adults. This statement is based on a representative sample of 178 adult Americans aged 18 to 29 and a representative sample of 427 adult Americans aged 50 to 64. Of those in the 18 to 29 age group, 48% said they believed these foods were bad for their health, while only 3% of those in the 50 to 64 age group believed this.
(a) Are the sample sizes large enough to use the large-sample confidence interval to estimate the difference in the population proportions?
(b) Estimate the difference in the proportion of adult Americans aged 18 to 29 who believe the foods made with genetically modified ingredients are bad for their health and the corresponding proportion for adult Americans aged 50 to 64. Use a 90% confidence interval.
(c) Is zero in the confidence interval?
Answer:
a) yes
b) ( 0.0280 , 0.1720 )
c) No
Step-by-step explanation:
A) Determine if the sample sizes are large enough
where :
ages between ( 18 to 29 )
p1 = 0.48 ,
n1 = 178 , ∴ n1 P1 = 85.44 also n1 ( 1 - p1 ) = 92.56
ages between ( 50 to 64 )
P2 = 0.03 ,
n2 = 427 ∴ n2p2 = 12.81 also n2( 1 -p2 ) = 414.19
since all the values ae above 10 we can conclude that the sample sizes are large enough
answer = yes
B) Estimate the difference in the proportion of adult Americans aged 18 to 29
= ( 0.0280 , 0.1720 )
attached below is the detailed solution
C) zero is not included in the interval
3 (18 - 7) divided by 2? I have to show my work
Answer:
16.5
Step-by-step explanation:
(18-7) = 11
11 x 3 = 33
33 divided by 2 = 16.5
Answer:
[tex]16\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\frac{3 (18 - 7)}{2} =\frac{3*11}{2}=\frac{33}{2}= 16\frac{1}{2}[/tex]
Please help me Asap i really need this
Answer:
B
Step-by-step explanation:
Answer:
B brainlist
Step-by-step explanation:
Can somebody please help me?
2+2
Answer:
4 is the answer =)
5. Solve for x:
22x-2
20x + 10
Answer:
22x-2=20x+10? Is this the question?
x=6
Step-by-step explanation:
22x-20x=10+2
2x=12
x=6
Find the limit of the function by using direct substitution. limit as x approaches zero of quantity x squared minus five. A) Does not exist B) 0 C) 5 D) -5
Answer:
lim as x---->0 of (x²-5) = -5 which is D
The graph of the function
Answer:
A. the function is increasing for all real values of x where x < -4
Multiply 16,3,and 29, and then subtract 17
Answer:
1375
Step-by-step explanation:
We can just follow what it says.
16 times 3 times 29 = 1392
1392 - 17 = 1375
Find the slope of the line by comparing the change in y to the change in x.
Answer:
3/4
Step-by-step explanation:
i was just learning this stuff
The slope of the line = 3/4
What is slope?"It is the ratio of change in the y values to the change in x values"
From given graph,
Consider AB,
assuming scale of 1 unit on each axis,
change in y = 3 and the change in x = 4
Therefore, the slope of the line = 3/4
Learn more about the slope of the line here:
https://brainly.com/question/1583658
#SPJ2
ABC is a straight line, work out the size of angle x
The value of x is: 180° - 100° - 45° = 35°
$72 with a 40% markup
Answer:
$100.80
Step-by-step explanation:
40%/100%×72=$28.80
$72+$28.80=$100.80
3. Find the slope of the line through the pair of points.
(12, 2), (-7,5)
Answer:
-3/19
Step-by-step explanation:
Given data
We have the coordinates
(12, 2), (-7,5)
x1=12
y1=2
x2=-7
y2=5
The expression for the slope is given as
Slope= y2-y1/x2-x1
Substiute
Slope= 5-2/-7-12
Slope= 3/-19
Hence the slope is -3/19
Please help, homework is do in 41 mins
A rectangular carport has area of one 50 ft.The width of the carport is 5 feet less than twice its length. Find the length and width of the carport
Width= ? feet,
Length= ? feet
Answer:
It is 10 because 5 times 10 is 50
Answer:
A) = 5
B) = 10
C) = (5 x 10)= 50
Step-by-step explanation:
Area of a rectangle a x b = c
Where a is the short side
Where b is the long side
And c is our area
Okay now we we have to think what numbers give us 50 so ( 1 x 50 , 5 x 10 , 2 x 25)
So since now we have the numbers we look for a number that is twice the other and is - 5 the other one and the only numbers are 10 and 5 so in conclusion
A= 5
B= 10
C= 50
Please fill in this for 20 points and brainlist <3333
Answer:
1. [tex]750(0.041) = $30.75[/tex]
2. [tex]90.75 - 55 = 35.75\\\frac{35.75}{55} = 0.65\\[/tex] 65%
3. [tex]13(1.06) = 13.78[/tex]
Please remember to brainlist this answer
Answer:
give them brainliest
Step-by-step explanation:
Find the measure of <2.
Answer:
78°
Step-by-step explanation:
In this problem, we need to find the value of angle 2.
Angle 2 is an Alternate exterior angle. Alternate exterior angles are formed by a transversal intersecting two parallel lines. They are located outside the two parallel lines.
To form an alternate exterior angle, angle 2 must be equal to 78°. Hence, we can say that the value of ∠2 is equal to 78°.
Please help!! I’ll give branliest!!!
Answer:
4.88
Step-by-step explanation:
sinA=opposite/adjacent
sin24=x/12
12(0.40673664307)=x
x=4.88083971691
Jolly measured the cake. Then she calculated that it has a circumference of 15cm. what is the cake's diameter? Use 3.14 for pi.
Will mark brainlest.
Answer:
diameter = circumference / pi
circumference = 15cm
diameter = 15 / 3.14
= 4.77707006369 cm
hope this answer helps you.....
please mark as brainliest... thank you!
PLEASE HELP ME WITH THIS QUESTION!!! WHATS THE ANSWER?? I WILL GIVE YOU BRAINLIEST AND A THANKS!!!
Answer:
A) 113 m²
Step-by-step explanation:
A=[tex]\pi[/tex]r²
[tex]\pi[/tex]x6x6=113.097
A police officer estimated the distance from one side of a street to the other to be 14m . The actual distance was 13.4.
Find the absolute error and the percent error of the police officer's estimate. If necessary, round your answers to the nearest tenth.
NO LINKS
Answer:
Part A. The absolute error is 0.2
Part B. The percent error is 1.45
Step-by-step explanation:
Hope this helps! :)
P.S I can tell that you have experience with the bots who ask you to go press a link. :)
What is the range of the function graphed below?
Answer:
-3<y<=3 or B
Step-by-step explanation:
first we find the smallest y value which is -3
then we find the largest y vlaue which is three
so since there is an open circle at negative three we do not include it while at three we do.
so the answer would be -3<x<=3
if my answer helps please mark as brainliest.
Please help i need this to pass
Answer:
28
Step-by-step explanation:
a^2+b^2=c^2
a^2+96^2=100^2
a^2+9216=10000
a^2=784
a^2= √784
a=28
Answer:
28 in.Step-by-step explanation:
Let,
The unknown leg be = x
According to Pythagoras Theorem,
[tex] {hypotenuse}^{2} - {base}^{2} = {height}^{2} [/tex]
[tex] = > {100}^{2} - {96}^{2} = {x}^{2} [/tex]
[tex] = > {x}^{2} = 10000 - 9216[/tex]
[tex] = > {x}^{2} = 784[/tex]
[tex] = > x = \sqrt{784} [/tex]
=> x = 28
Hence,
the another leg is 28 in. (Ans)
Figure ABC is similar to figure XYZ.
What is the value of x in meters?
FOR BRAINLIST!!!
Answer:
D. 10m
Step-by-step explanation:
I hope you trust me
Enter the correct value so that each expression is a perfect-square trinomial.
x2 – 10x +
Answer:
x^2 - 10x + 25
Step-by-step explanation:
Answer:
25
Step-by-step explanation:
Edge… you’re welcome
at the convince store, 24 pack of water bottles are selling for $3.99 for 1 pack, or $9.99 for 3 packs. hiw much money per pack would you save by purchasing 3 packs insyead of 1?
Answer:
you would save .66 per pack so .66×3=1.98
Step-by-step explanation:
9.99÷3=3.33, 3.99-3.33=.66