Answers
Answer:
168
Step-by-step explanation:
(11 +17) ×12 /2
28×12 /2
=168
all about formule
Answer:
C. 168ft²
Step-by-step explanation:
area: S = a + b /2 × h
S = 11 + 17 / 2 × 12
S = 28/2 × 12
S = 14 × 12
S = 168
Related Questions
2 2/3 lbs of rice cost $5.52. What is the cost of 1lb
Answers
Answer: I'm not fully sure but I think its 2.07
Answer:
$2.07 per pound
Step-by-step explanation:
we can rewrite 2 2/3 as 8/3
now we can create a proportion from cost to pounds of rice
5.52 is to 8/3 pounds as 'c' is to 1:
(5.52 ÷ 8/3) = c/1
cross-multiply to get:
8/3c = 5.52
multiply each side by 3/8 to get:
c = 5.52(3/8)
c = 2.07
proportions in similar triangles. need help
Answers
Answer:
x = 6
Step-by-step explanation:
The angle bisector divides the triangle sides proportionally:
(6x -1)/42 = (10x +5)/78
13(6x -1) = 7(10x +5) . . . . multiply by 546 (the LCM of 42 and 78)
78x -13 = 70x +35 . . . . . eliminate parentheses
8x = 48 . . . . . . . . . . . . . . add 13-70x
x = 6 . . . . . . . . . . . divide by 8
_____
Additional comment
The unknown segment lengths are ...
6·6 -1 = 35
10·6 +5 = 65
Then the ratios to the known sides are ...
35/42 = 65/78 = 5/6
8 A circle passes through the points (0, 2) and (0,8) and its centre lies on the line
x=4.
Draw a sketch and find the equation of the circle.
Answers
Step-by-step explanation:
A circle that passes through point 0,2 and (0,8) and has a center that lies on x=4 is what given.
So we know is center (4,p) for some number p,
Since the points on circumference of the circle have the same x value, then we know that the y coordinate of the center must be the midpoint of the circumferences' y coordinates.
Why?
A circle is not a function since it doesn't pass the vertical line test. And the standard form of a circle is
[tex] {x}^{2} + {y}^{2} = {r}^{2} [/tex]
With center (0,0).
Consider the equation
[tex] {x}^{2} + {y}^{2} = 9[/tex]
The radius is 3 so two points with x coordinate 0 is
(0,3) and (0,-3). And the midpoint of them is (0,0) which is the center. Which is the defining trait of all circles.
Now, back on hand, our the midpoint of 2 and 8 is 5 so our center is
(4,5).
Now, we must find the radius. We use distance formula.
For (4,5) and (0,8).
[tex]d = \sqrt{(8 - 5) {}^{2} + ({0 - 4) {}^{2} } } [/tex]
[tex]d = \sqrt{3 {}^{2} + {4}^{2} } [/tex]
[tex]d = \sqrt{25} [/tex]
[tex]d = 5[/tex]
So our radius is 5.
So now we use the equation of center h,k.
[tex](x - h) {}^{2} + (y - k) {}^{2} = {r}^{2} [/tex]
H is 4
K is 5
[tex](x - 4) {}^{2} + (y - 5) {}^{2} = 25[/tex]
Above is sketch of graph.
your friend solved the equation 4x+24-2=7(4x+2) and got x=16. what error did your friend make? what is the correct solution?
Answers
Answer:
the correct answer is 3
Step-by-step explanation:
4x+24-2=7(4x+2)
4x+22=7*4x+2*7
4x+22=28x+14
4x-28x=14-22
-24x=-8
24x=8
x=3
Fiona recorded the number of miles she biked each day last week as shown below. 4, 7, 4, 10, 5 The mean is given by m = 6. Which equation shows the variance for the number of miles Fiona biked last week? s squared = StartFraction (4 minus 6) squared (7 minus 6) squared (4 minus 6) squared (10 minus 6) squared (5 minus 6) squared Over 6 EndFraction Sigma = StartRoot StartFraction (4 minus 6) squared (7 minus 6) squared (4 minus 6) squared (10 minus 6) squared (5 minus 6) squared Over 5 EndFraction EndRoot s = StartRoot StartFraction (4 minus 6) squared (7 minus 6) squared (4 minus 6) squared (10 minus 6) squared (5 minus 6) squared Over 4 EndFraction EndRoot Sigma squared = StartFraction (4 minus 6) squared (7 minus 6) squared (4 minus 6) squared (10 minus 6) squared (5 minus 6) squared Over 5 EndFraction.
Answers
Variance is average of squared error of observations from mean. The variance of given data is 5.2
How to calculate variance of a given data set?Variance is average of squared error of observations from mean.
If the data set is composed of n elements,its ith element is [tex]x_i[/tex] , and mean of the data set is [tex]\overline{x}[/tex] ,then its variance is given as:
[tex]\sigma^2 = \dfrac{1}{n} \sum_{i=1}^n(x_i-\overline{x})^2[/tex]
The given data set is 4,7,4,10,5
Thus, n = 5 (total 5 observations (data values) )
Their mean is [tex]\overline{x} = 6[/tex] (it is taken as 'm', but for ease with formula, take it as [tex]\overline{x}[/tex] )
Thus, their variance is calculated as:
[tex]\sigma^2 = \dfrac{1}{n} \sum_{i=1}^n(x_i-\overline{x})^2 \\\\\sigma^2 = \dfrac{(4-6)^2 + (7-6)^2 + (4-6)^2 + (10-6)^2 +(5 - 6)^2}{5} \\\\\sigma^2 = \dfrac{4 + 1 + 4 + 16 + 1}{5} = \dfrac{26}{5} = 5.2[/tex]
Thus,
The variance of given data is 5.2
Learn more about variance here:
https://brainly.com/question/3699980
Answer:
d
Step-by-step explanation:
Please help matimatik 10 points
Answers
Answer:
0.03
Step-by-step explanation:
Hope I helped
-Hunter Cross
Please mark Brainliest if Correct
Simplify 5^2 • 5^4
O A. 5^8
O B. 5^6
O C. 5•8
O D. 5^2
Answers
Work:
You add 2 and 4 and get 6. Thus your answer is 5^6
Please help! Explain the best you can! :) Thanks!
Answers
Answer:
55°
Step-by-step explanation:
x+x-20=90[Complementary angle]
or, 2x-20=90
or, 2x=90+20
or, 2x=110
or, x=110/2
x=55°
All of the following are equivalent, except _____.
2 x + x
x(2 + 1)
3 x
2 x²
Answers
All the others sum to 3x
Can’t get an x^2 as you are only expanding and/or collecting like terms.
Someone, please help
and instead of 10yd its 30yd
and instead of 20yd its 60yd
Answers
Pleaseee help me solve this and show work
Answers
Answer:
x
Step-by-step explanation:
The greatest common factor is x. This is the biggest term that each term can be divided by.
What is the solution to the system of equations below?
Answers
Answer:
(9,3)
Step-by-step explanation:
Answer:
x=9,y=3
Step-by-step explanation:
Please help me I'm really stuck and I can't get a red if I get this wrong I will
Answers
Answer:
-0.75
Step-by-step explanation:
(0 , 22) (12, 13)
=13 - 22/12 - 0
=-9/12
=-0.75
Which 2 numbers have a mean of 10 and a range of 4?
Answers
Answer:
12 and 8
Step-by-step explanation:
basic knowledge of math i guess
hope that helps love
If a local coffee shop serves 12 customers in 36 minutes, how fast does it serve its customers?
A. 1 minute per customer
B. 2 minutes per customer
C. 3 minutes per customer
D. 2.5 minutes per customer
Answers
Explanation: Divide the 36 minutes by 12 customers served. This gives you 3 minutes spent on each customer.
please help with a full explanation at the bottom i’ll mark brainliest
Answers
Answer:
240 employees or A
Step-by-step explanation:
12 employees : 2 instructors
or 6:1
so there are 40 instructor
so 6*40 equals 240 employees
Which model represents this word problem?
Pablo read 7 pages of his book. There are 13 pages left. How many total pages are in his book?
HELPP IM TRYING TO HELP MY FRIEND !! :((((
i think its the first one but im scared to hit it
Answers
it is the first one
Step-by-step explanation:
because I used my brain and its correct
Answer:
the first one is correct i believe
Simplify to a single power of 6:
Answers
Answer:
6^2
Step-by-step explanation:
When they are divided, just subtract the exponents. 5 - 3 = 2
=
Гу
Which function represents g(x), a reflection of f(x) = {
(3) across the y-axis?
90
f
4
2
1
O g(x) = 2(3)
O g(x) = -2(3x
o g(x) = {(3*
O g(x) = 2(3)*
-2
-3
Next
Submit
Mark this and return
Answers
Answer:
4th answer I believe
hope this helps
How much would it cost for Mr. John to replace the tile in his kitchen if the cost for the tile is $1.50 per square foot? (Think about what shape the kitchen is to find the area of it)
Answers
Answer:
214.50
Step-by-step explanation:
A = lw
13 x 11 = 143 (13 is a guess)
143 x 1.50 = 214.50
im not 100 % but give it a try
hope this helps
pls mark brainliest
PLEASE ANSWER FOR MY SISTER
Answers
Answer:
3/5 < 3/3
Step-by-step explanation:
3/3 = 1 whole (1)
3/5 = 0.6
Ross says a $125.95 skateboard at 40% off is cheaper than a $169.95 skateboard at 60% off. Is he correct?
Answers
Answer:
Ross isn't right.
Step-by-step explanation:
Skateboard $125.95 at 40% off is $75.57
How I got the number:
125.95/100 = 1.2595
1.2595 x 40 = 50.38
125.95 - 50.38 = 75.57
Skateboard $169.95 at 60% off is $67.98
169.95/100 = 1.6995
1.6995 x 60 = 101.97
169.95 - 101.97 = 67.98
Therefore the skateboard that is 60% off is cheaper.
pls help i forgot how to do this
Find the area of the parallelogram.
Answers
Answer:
3484 [tex]ft^{2}[/tex]Step-by-step explanation:
Given,
The figure is of a parallelogram
Height (h) of the parallelogram = 52 ft.
Since,
In a parallelogram opposite sides are equal so,
Corresponding base to the height of the parallelogram is = 67 ft.
Therefore,
Area of the given parallelogram
= base × height
[On substituting their values]= 67 ft. × 52 ft.
[On multiplying]= 3484 [tex]ft^{2}[/tex]
Hence,
The required area of the parallelogram is 3484 [tex]ft^{2}[/tex] (Ans)
please I need help!!!!
Answers
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
Slope: m
(-3,1) and (3,3)
[tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{3-1}{3-(-3)} =\frac{2}{6}=\frac{1}{3}[/tex]
Hope this helps!
As part of a community service project at your highshcool you are organizing a fund raiser at the neighborhood movie theater money raised will benefit a summer camp for children with special needs the admission charge is 10.00 per person, 5.50 of which is used to pay the movie theaters rental fee, the remainder is donated to the summer camp fund what are the two variables involved in this problem
Answers
Answer:
Yes it is a function. It passes the vertical line test. In other words, it is impossible to draw a single vertical line through more than one point on the V shaped graph. Any input leads to exactly one output.
The domain is the set of all real numbers. This is because we can plug in any x value leading to some specific y value. There are no holes or gaps or jumps to indicate we must restrict any given x value. The domain would not be the set of whole numbers only because values between the whole numbers (eg: decimal values like x = 2.75) work just fine.
The range is the set of y values such that y is either 0 or larger than 0. In short, the range is . Notice how any point on the V shaped graph has a y coordinate that is either 0 or larger than 0. It is impossible to get a y value that is negative.
Step-by-step explanation:
Factor each expression. 81y + 54
Answers
your answer is....
27(3y+2)
a boy standing on a vertical cliff, 50m high is looking down an angle of depression of 20° at a car. How far is the car from the base from the cliff?
Can someone please help me, it's due in 30 mins
Answers
Answer:
explanation is in the diagram
John is planning for retirement and wants to have an interest income of $3000 a year. How much Must he invest for one year at 8% interest
Answers
Answer:
240
Step-by-step explanation:
Write the equation in Slope-Intercept form of the line that goes through the point
(3, 12) and has a Slope of 5.
Could someone help me with this please
Answers
Answer:
y = 5x + 12
Step-by-step explanation:
Help on Math I need answers As soon as possible if you can :) I will add you to brainlist thingy
Answers
Answer:
[tex]-5°F, 0°F, 2°F , 5°F , \\ 13°F, 20°F[/tex]
Hope it helps you<3