Reason:
Data set A has the larger standard deviation, so it is more spread out.
3) Find the next three terms in the following geometric sequence. 8, 20, 50, ...
Answer:
125,312.5, 781.25
Step-by-step explanation:
times previous number in sequence by 2, then add half of same previous number
When Adam sights the top of a 10-ft-high statue from 100 ft away, he finds an angle of elevation of 2.3°. When his friend Mark stands in the same location and sights the top of the same statue, he finds an angle of elevation of 2.6°. Assuming both boys measured correctly, which boy is taller? By how much?
Answer:
Adam's height - Mark's height =
[10 - 100tan (2.3)] - [10 - 100tan(2.6) ] =
≈ [5.96ft - 5.46 ft] =
≈ .50 ft ..... and Adam is ≈ 6 inches taller
Step-by-step explanation:
Adam's height - Mark's height =
[10 - 100tan (2.3)] - [10 - 100tan(2.6) ] =
≈ [5.96ft - 5.46 ft] =
≈ .50 ft ..... and Adam is ≈ 6 inches taller
Justine earned $28,000 during the first year of her job at city hall. After each year she received a 6% raise. Find her total earnings during the first five years on the job.
Answer:
$ 157838.60 in 5 years
Step-by-step explanation:
r = 1.06
sum of geometric seq = a1 ( 1-r^n)/(1-r) n = 5
28000 ( 1 - 1.06^5) / ( 1-1.06) = 157838.60
(C) Asri's height is 2x cm. Adib's height is 6 cm less than Asri's height. Irfan's height is 2 times of Asri's height. Write an algebra expression to represent:
(i) Irfan's height, 2 Marks
(ii) the difference in height between Irfan and Asri. 2 marks
Step-by-step explanation:
I don't know if I got that right
Carson needs to build a closed container out of sheet metal, but needs to minimize the amount of sheet metal used. The volume of Carson's container needs to be approximately 320 cubic Inches. Carson needs to select one of the following designs that meets his volume requirement, using the least amount of sheet metal. Which design should Carson choose? A. Rectangular prism with dimensions of 8 inches (in.), 8 in., and 5 in. B. Rectangular prism with dimensions of 10 in., 8 in., and 4 in. C. Cylinder with a radius of 5 in. and height of 5 in. D. Square pyramid with a base length of 10 in., height of 10 in, and slant height of approximately 14 in.
Carson needs to select one of the following designs that meet his volume requirement, using the least amount of sheet metal which is the first option. Rectangular prism with dimensions of 8 in, 8 in., and 5 in.
How to find the volume of a right rectangular prism?Suppose that the right rectangular prism in consideration be having its dimensions as 'a' units, 'b' units, and 'c' units, then its volume is given as:
[tex]V = a\times b \times c \: \: unit^3[/tex]
Carson needs to build a closed container out of sheet metal but needs to minimize the amount of sheet metal used.
The volume of Carson's container needs to be approximately 320 cubic Inches.
Carson needs to select one of the following designs that meets his volume requirement, using the least amount of sheet metal.
If we consider the Rectangular prism with dimensions of 8 inches (in.), 8 in., and 5 in.
Then the volume would be
[tex]V = 8 \times 8 \times 5\\\\V = 320[/tex]
This satisfies the given volume so it could be the correct answer.
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Simplify the expression 7t +3- 2 t
Answer:
5t+3
Step-by-step explanation:
1 Collect like terms.
(7t-2t)+3
2 Simplify.
5t+3
Answer:
(7t - 2t) + 3
Combine the like terms that include t.
[tex]7t - 2t = 5t[/tex]
Turn into equation.
[tex]5t + 3[/tex]
__________________________________________________________
Find the measure of a, b, c, d, e
Answer:
a:90 b:90 c:42 d:48 e:132
Step-by-step explanation:
assuming the picture is accurate^^^
a = 90°
b = 90°
c = 42°
d = 48°
e = 132°
Step-by-step explanation:
Here as you can see c and 132° is vertically opposite to each other so it can be name as vertically opposite angle....
Vertically opposite angle are always equal to each other....e = 132°
Now....
here c and d are supplementary angle...
c + d = 180°
132° + d = 180°
d = 180° - 132°
d = 48°
Now...
b = 90° ( being vertically opposite angle )
Here a and b are supplementary angle ....
a + b = 180°
a = 180° - 90°
a = 90°
Now...
c + 138° = 180° ( supplementary angle )
c = 180° - 138°
c = 42°..
[tex]...[/tex]
A loaf of bread can be modeled by a rectangular prism topped with half a right cylinder. David measures the dimensions of the prism as 5 in by 5 in by 13 in. Using those dimensions, find the volume of the loaf. Round your answer to the nearest tenth if necessary. (Note: diagram is not drawn to scale.)
we should use the formula volume=ab×hsquare
The correct answer is 487.5[tex]in^3[/tex]
What is Rectangular prism? A rectangular prism is a three-dimensional object that uses rectangles as parallel bases. The volume of rectangular prism is Length x width x heightHow to Solve the Problem?The dimension of the prism given are 5in , 5 in , 13in
We need to find the volume of the loaf of the bread
So ,
The volume of rectangular prism is Length x width x height
V1 = 5*5*13
∴ V1 = 325[tex]in^3[/tex]
The volume of half a right cylinder
V2= ([tex]\frac{1}{2}\pi r^{2}h[/tex])
∴ V2 = ([tex]\frac{1}{2}*(5)^{2}* 13[/tex])
∴ V2= 162.5 [tex]in^3[/tex]
∴ Volume of loaf of bread is V = V1+V2
∴ V = 325+162.5
∴V = 487.5[tex]in^3[/tex]
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Determine the domain D of the mapping f : x ---2x - 3, if C={-3, -1, 5} is the range and f is defined on D
The domain is ={-3, -1, 5} for the given function f(x) = 2x - 3.
How to determine the domain and range?The domain of the function is defined as the set of the numbers we are allowed to put in the function while the range is the assumed data put in the function.
Given function:-
f(x) = 2x - 3
The domain will be C={-3, -1, 5}
The range can be any random value which we can put in the function.
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Howie wants to get a car loan with 4% simple interest rate. If the car
costs $25,000, how much would Howie need to pay back at the end of
one year, including the interest?
Answer: $26,000
Explanation:
i = simple interest
P = 25,000 = amount loaned
r = interest rate in decimal form = 0.04
t = number of years = 1
So,
i = P*r*t
i = 25000*0.04*1
i = 1000
Howie needs to pay $1,000 in interest on top of the $25,000 loaned to him. In total, he needs to pay back 1,000+25,000 = 26,000 dollars.
Please help me. I’m stuck on it
Answer:
y = 6
x = -16
Step-by-step explanation:
[tex]\left \{ {{x + 4y = 8} \atop {3x + 8y = 0}} \right.[/tex]
[tex]x + 4y = 8\\ - 4y -4y\\x = 8 - 4y\\substitution\\3(8 - 4y) + 8y = 0\\ 24 - 4y = 0\\-24 -24\\-4y = -24\\\frac{-4x}{-4} = \frac{-24}{-4}\\y = 6 \\plug \\x = 8 - 4y\\x = 8 - 4(6)\\x = -16\\y = 6, x = -16[/tex]
Find the product.
-a2b²c²(a+b-c)
Answer:
[tex]- a^{3} b^{2} c^{2} - a^{2} b^{3} c^{2}+ a ^{2} b^{2} c^{3}[/tex]
Step-by-step explanation:
branliest pls
Emergency pls help: tisha is moving into her first apartment and ordered a large mirror for her room from a catalog. the catalog says the mirror is 7 feet tall. if she leans the mirror against the wall at a 76 degree angle, how far away from the wall will its base be, to the nearest hundredth of a foot?
Using the slope concept, it is found that the base of the mirror will be 1.75 feet from the wall.
What is a slope?The slope is given by the vertical change divided by the horizontal change, and it's also the tangent of the angle of depression.
In this problem, the vertical change is of 7 ft, with an angle of 76º, and the distance is the horizontal distance, hence:
tan(76º) = 7/d
d = 7/tan(76º)
d = 1.75.
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Which set of ordered pairs could be generated by an exponential function?
, ),
4.
16
O (1, 1), (2.4), (3,4) (4.4)
,
O (1, 1), (2,4) (3:4). (**)
,
0 (1,2), (2,4), (3,5), (446)
(1-2)(24). (3) (46)
3
3
PLEASE HELP
Answer:
(1,1), (2, 1/4), (3, 1/9), (4, 1/16)
Step-by-step explanation:
(1,1/2)(2, 1/4), (3, 1/9), (4, 1/16) are the ordered pairs which could be generated by an exponential function.
What is a function?A relation is a function if it has only One y-value for each x-value.
An exponential function is a Mathematical function in the form f (x) = aˣ, where “x” is a variable and
a is a constant which is called the base of the function and it should be greater than 0.
We have to find the set of ordered pairs could be generated by an exponential function.
(1,1/2)(2, 1/4), (3, 1/9), (4, 1/16) represents the exponential function.
y=1/2ˣ
y=2⁻ˣ
Hence, (1,1/2)(2, 1/4), (3, 1/9), (4, 1/16) are the ordered pairs which could be generated by an exponential function.
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find the value of each variable
x=
y=
Plot each pair of values from the table on the coordinate plane.
Step-by-step explanation:
So, we can find the points to graph by looking at the table. The left column is where we find our x-values and the right column is where we find the y-values. We get the points (1, 3), (3, 9), (5, 15), and (6, 18). I added a picture showing where to plot these and hope it helps!!
What is the difference between permutations and combinations.
Answer:
permutations: order matters
combinations: order doesn't matter
Answer:
A combination doesn't need to be in a specific order, unlike permutation which needs to go in order.
Step-by-step explanation:
help me please i really need help pls
Answer:
x=20
Step-by-step explanation:
Complementary angles add up to 90 degrees.
Therefore, 30 + 3x = 90
3x=60
x=20
please help me......asap
Answer:
Step-by-step explanation:
the length of a rectangle plus its width is 35 cm the area 306 what are the length and width of the rectangle
Step-by-step explanation:
Let width be w, length be l
l + w = 35, so w = 35 - l
lw = 306
l(35-l) = 306
35l - l^2 = 306
l^2 - 35l + 306 = 0
(l - 17)(l - 18) = 0
l = 17 or 18
When length = 17, width = 35-17 = 18
When length = 18, width = 35-18 = 17
What’s the nearest hundreds to 7,190
Answer:
7200
Step-by-step explanation:
It is above 7150+
So the nearest hundred of 7190 will be,
→ 7190 ≈ 7200
→ 7200
Thus, the nearest hundred is 7200.
7,200
Calculations / Details ↓Rounding Rules :
If the number you are rounding is followed by a number less than 5 , you round down .
If the number you are rounding is followed by a number greater than or equal to 5 , you round up .
Here we're asked to round [tex]\mathtt{7,190}[/tex] to the nearest hundredth .
The number we're rounding is followed by a number greater than 5 , so we round up :
7,190 ---> 7,200
So the ans is7,200
[tex]\small\text{hope\:helpful~}[/tex]
Abby purchased a stop light at a garage sale for 12$. She later sold the stop light on Craigslist for 16$. What was the present increase
Answer:
33.3% increase
P% = Y/X - 1
P% = 16/12 - 1
p = 0.3333
Convert
0.3333 = 33.33%
16.
A reporter intends to
survey 150 people to estimate what percentage of the city's
population would support a law that raises the
legal driving age from 16 to 18 years.
Where should the reporter conduct his survey to obtain data that best represents the
entire city population?
A. the city's park
B. the city's high school
C. the city's senior citizen center
D. the city's police and fire stations
Answer:
A. the city's park
Step-by-step explanation:
It would be the park, because many people of different genders and ages go there, and it would be unbiased, since is not just a certain age or gender of people who go there.
omg i keep mixing up the questions I JUST NEED HELP ON PART A THATS IT
Answer:
1/557
Step-by-step explanation:
The scale factor on a map is the ratio of one unit to the distance that unit measures!
Brooke baked 7 batches of cookies with x cookies in each barch. She then ate 5 cookies, How many cookies does Brooke have left? Write your answer as an expression.
Answer
(7*x) -5
Step-by-step explanation:
Find the slope of the line that passes through (5, 2) and (8, - 1)
Answer:
-1
Step-by-step explanation:
when the points are placed on a graph correctly, you would have to go down 6 and over 6; rise over run would make that -6/6 which is equal to -1
Please help me on this!
Answer:
B. the value depreciates at a rate of 5% each year
Step-by-step explanation:
(1 - 0.05) = .95
-0.05 = depreciates by 5%
Have a nice day! :)
Help me pls brainles
Step-by-step explanation:
4/10 is 4 away from 0 (not counting the zero but if you did is 5 away from 0) 7/10 is 3 away from 4/10 and 2/10 is 2 behind 4/10
What is the value of areas of triangles if height is 12 m and base is 6m ?
Answer:
36 sqm
Step-by-step explanation:
Area = base x height /2
= 12 x 6 /2
= 36sqm
If the measure of each interior angle of a polygon is 150°, how many sides does it have?