Answer:
(27.3692 ; 44.6308)
Step-by-step explanation:
Mean, xbar = 36
Standard deviation, s = 11
Sample size, n = 12
Tcritical at 0.2, df = 12 - 1 = 11 ; Tcritical = 2.718
Confidence interval :
Xbar ± Margin of error
Margin of Error = Tcritical * s/sqrt(n)
Margin of Error = 2.718 * 11/sqrt(12) = 8.6308
Confidence interval :
Lower boundary : 36 - 8.6308 = 27.3692
Upper boundary : 36 + 8.6308 = 44.6308
(27.3692 ; 44.6308)
whats 76x168 + 69+87=
Answer:
12,924
Step-by-step explanation:
76x168= 12,768
and...
69+87= 156
now we add them together...
12,768+156= 12,924
Hope this helped you- have a good day bro cya)
Jack was seven years older than Pacella together their ages total 171 years. what will the ages
Answer:
164
Step-by-step explana
Answer:
82-Pacella
89-Jack
Step-by-step explanation:
x is Pacella
y is jack
y=7+x
x+y=171
Graphing these, they intersect at (82,89)
(IMAGE IS ATTACHED. PLEASE HELP! GIVING 100 POINTS)
What is the value of x?
Enter your answer in the box.
Answer:
x = 50
Step-by-step explanation:
→ Make the equations equal to each other
2 ( x + 10 ) = 3x - 30
→ Expand brackets
2x + 20 = 3x - 30
→ Minus 3x from both sides
-x + 20 = -30
→ Minus 20 from both sides
-x = -50
Opposite angles are equal
[tex]\\ \sf\longmapsto 2(x+10)=3x-30[/tex]
[tex]\\ \sf\longmapsto 2x+20=3x-30[/tex]
[tex]\\ \sf\longmapsto 3x-2x=30+20[/tex]
[tex]\\ \sf\longmapsto x=50[/tex]
Hello! I'm in the 7th grade and I'm having trouble with math this year... Will someone please help me with this? :)
(the question is down below)
Answer: 66
Step-by-step explanation: 30 x 2 = 60... 30 / 5 = 6... 60 + 6 = 66 :D
i'm in seventh too hehe
The lines given by the equations y = 2x and y= 2x + 1 are
A. Parallel
B. Perpendicular
C. Neither Perpendicular nor parallel
1. Jean bought the new Iphone for $1080 (Tax included) on an installment plan. The installment
agreement included a 10% down payment and 24 monthly payments of $50 each.
a. How much is the down payment?
b.what’s the total amount of the monthly payments?
c.how much did Jean pay for the phone on the installment plan?
d.what is the finance charge (interest)?
Answer:
jndfjhasbfjashdfbasjdfbjashbdcjashdbjcbjhasdcbjasdcbjashdcbjashcdbjadhcbasdhcb
Step-by-step explanation:
The sale price of an item is $330 after a 25% discount. What was the original price of the item?
Answer:
$440
Step-by-step explanation:
100%-25%=75%
75%=330
1%=330÷75=4.4
100%=100x4.4=440
Hope this helps! Thanks.
The table shows the time Merrida spent driving and the number of miles she drove. She drove the same number of miles each hour.
Merrida’s Driving Time and Distance
Miles
Hours
140
4
175
5
210
6
How many miles did she travel each hour?
Answer:
20
Step-by-step explanation:
Answer:
To be honest i think that the answer is 23!!
Step-by-step explanation:
Tell me pls but pls no files
Answer: C
Step-by-step explanation: When you rotate it 90 degrees it is the same then you put it 3 to the right which makes it opposite. I mean I am pretty Sure.
What is the equation of a line that passes trough (6,-1) and is parallel to the line that has a slope of -2/3?
Answer:
y=-2/3x+3
Step-by-step explanation:
First, identify the slope you need for your equation. The keyword here is "parallel" so the slope you need is the same as the given slope (-2/3).
Next, use the ordered pair (6,-1); it's on the line that you need to find the equation for. Using slope-intercept form (y=mx+b), plug the -1 in for y, plug the 6 in for x, and plug in your slope of -2/3 for m. Solve for b, your y-intercept. You should get 3.
You have your slope and y-intercept now. Create your equation:
y=-2/3x+3.
A submarine dives 51 3/5 meters below the surface of the water in 4 minutes. how many meters does the submarine dive each minute? NO LINKS!
A: 12 9/10
B: 12 3/4
C: 206 2/5
D: 47 3/5
Answer:
a
Step-by-step explanation:
51 3/5 = 258/5
258/5 / 4 = 12.9 (meters the submarine dives each min)
now we have to find out what 12.9 is as a fraction!
12.9= 12 9/10 because .9 is equal to 9/10, and 12. equals 12!
gardener has 27 pansies and 36 daisies. He plants an equal number of each
type of flower in each row. What is the greatest possible number of pansies in
each row? Thanks
Answer:
9
Step-by-step explanation:
the gcf is 9
Write the polynomial that has factors of 2 and -6.
Answer: x^2 - 4x - 12
Step-by-step explanation:
Factors are (x + 2) and (x - 6)
(x +2)(x - 6)
*multiply the first x by the second x and then by the -6
x^2 - 6x
* multiply the 2 by the second x and then the -6
2x - 12
* combine the two expressions
x^2 - 6x + 2x - 12
*simplify
x^2 - 4x - 12
Shelly bought a bed sheet for $1699.
She gave the Shopkeeper $2000 - what
amount will be returned
by
the shopkeeper?
Answer:
the shop keeper will return $301.00
I don’t know the answer help pls
What is another name for the cell membrane? Generally speaking, identify the overall structure of the cell membrane.
1) (2.01) Identify domain and range. Then determine whether the relation is a function or not. Explain your reasoning.
x y
2 2
-1 4
0 6
3 2
Is this relation a function? Why or why not?
Calculus, derivatives. Please help! Show work, if possible. Thanks! :)
[tex]y = x + \pi[/tex]
Step-by-step explanation:
We need to find the slope of the line tangent to y at [tex]x=-\pi[/tex] and we can do that by calculating the derivative of y at that point. We know that
[tex]y'(x) = \dfrac{d}{dx}(\tan{x}) = \sec^2{x}[/tex]
and
[tex]y'(-\pi) = \sec^2(-\pi) = 1[/tex]
To find the equation of the tangent line, we know that the line passes through the point [tex](-\pi, 0)[/tex] so we can write the slope-intercept form of the line's equation as
[tex]0 = (-\pi) + b \Rightarrow b = \pi[/tex]
Therefore, the equation of the line tangent to the point [tex]x = -\pi[/tex] is
[tex]y = x + \pi[/tex]
The graph of the two functions is shown above.
How tall is House B?
Answer:
25 maybe I don't now ok because is house a is 24 maybe house b will be 25
Evaluate.
3⋅2^3+5^2−18÷6
25
31
40
46
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let's evaluate :
[tex]3(2) {}^{ 3} + {5}^{2} - (18 \div 6)[/tex][tex](3 \times 8) + (25) - (3)[/tex][tex]24 + 25 - 3[/tex][tex]49 - 3[/tex][tex]46[/tex]Answer:
[tex]46[/tex]
Step-by-step explanation:
Hey there,
Before solving the sum you have to know about the BODMAS theorem.
That means you have to solve this sum according to the BODMAS theory.
BODMAS theory is,
B - Brackets
O - Of
D - Division
M - Multiplication
A - Addition
S - Subtraction
Let us solve the sum now.
[tex]3 \times {2}^{3} + {5}^{2} - 18 \div 6 \\ 3 \times 8 + 25 - 18 \div 6 \\ 24 + 25 - 3 \\ 49 - 3 \\ = 46[/tex]
Hope this helps you.
Let me know if you have any other questions :-):-)
What is the range?can someone please help I forgot to study
Answer
The range is the difference between the largest and smallest numbers.
Step-by-step explanation:
The range is the difference between the largest and smallest numbers.
HELPPPP!!!!! PLEASEEE IM BEING TIMED !!!!!!!!!!!
Answer:
[tex]x=89[/tex]
Step-by-step explanation:
We can plug into the formula for the mean to get [tex](87+73+84+82+x)/5=83[/tex].
We can combine like terms on the left side to get [tex](326+x)/5=83[/tex].
We can multiply by [tex]5[/tex] on both sides to get [tex]326+x=415[/tex].
We can finally subtract [tex]326[/tex] from both sides to get [tex]x=89[/tex].
So, the answer is [tex]\boxed{x=89}[/tex] and we're done!
X(x-9)(x+4)/6x^3( x+4)(x-9) simplified
Answer: 1/6x^2
Step-by-step explanation: Cancel out like terms like (x-9) and (x+4), then x.
[tex]\sqrt{1.69}[/tex]
1.3 Is that the answer you looking for
What is the solution to the following system of
equations?
-2x + 8y = - 14
- 4x + y = - 13
Please help!
I have 10 mins
-I’ll mark BRAINLIEST
Answer:
The terms are 1/2s, -4, 3/4s, 1/8, and s^3
The like terms are 1/2s and 3/4s
-4 and 1/8 could also technically be counted as like terms but I don't think they're looking for that
Step-by-step explanation:
a like term is a term that has the same variable value associated with the coefficient
Sam bowled three games with scores of 210, 185, and 190. He needs to have a four-game average of 205 to qualify for an elite bowling league. What score does he have to bowl on the fourth game to have the average of 205 that he needs?
Answer: 235
Step-by-step explanation:
Total score if he average 205 = 205 * 4 = 820
Score needed on 4th game = 820 - 210 -185 - 190 = 235
1. If the measures of two angles of a triangle are 19° and 80°, find the measure of the third angle.
19+80=180
99=180
180_99
81
Victor has 2 times as many as trophies as Dean. Together , víctor and Dean have 27 trophies . How many trophies does víctor have?
Answer:
Victor has 18 trophies
Step-by-step explanation:
Let's set up "let statements"
Let d = Dean's trophies
Since Victor has 2 times as many trophies as Dean, we can set up a let statement for Victor like this...
Let 2d = Victor's trophies
Now we can set up an equation! Since we know Dean and Victor have 27 trophies altogether...our equation has to involve addition...
2d + d = 27
Combine like terms...(2d and d)
3d = 27
Divide 3 on both sides to isolate the variable "d"
3d ÷ 3 = d
27 ÷ 3 = 9
So...
d = 9
That means Dean has 9 trophies. But we are not done yet because we need to figure out how many trophies Victor has. Since Victor has 2 times the number of trophies as Dean we can do...
2 · 9 = 18
Therefore, Victor has 18 trophies!
Hope this helps :)
Answer:
Vitor has 18 trophies and Dean has 9.
Step-by-step explanation:
Round 607.5 to the nearest whole number.
Answer:
608
Step-by-step explanation:
607.5 on a number line would be round 608
because 5 is rounded to 10 like that
Apply sam technique