Answer:
$24,890.46, $25,109.59
Step-by-step explanation:
Given:
n = 48, the sample size
m = $25,000, th sample mean
σ = $3000, the maximum variance
The standard deviation is
s = √σ = √(3000) = 54.772
As a rule of thumb, the range is 4 times the standard deviation. Therefore the range is
R = 4*54.772 = 219.09
Half the range is
R/2 = 219.09/2 = 109.45
The required range is
(25000-109.45, 25000+109.45) = (24890.46, 25109.54)
Answer: $24,890.46, $25,109.54
Gabriel wants to paint the model. How
much paint will he need?
The area of the square base is in.?
The area of each triangular face is
in.
Gabriel will need in.2 of paint.
Answer:
The area of the base is 144 square inches.The area of each triangular face is 66 square inches.Grabiel needs 408 square inches of paint.Step-by-step explanation:
The complete problem is attached.
Notice that the figure is a square pyramid, where its base dimensions are 12 inches by 12 inches, which represents an area of
[tex]B=12 \times 12 = 144 \ in^{2}[/tex]
The slant height of the pyramid is 11 inches, which allow us to find the area of each triangle face
[tex]A=\frac{1}{2}bh =\frac{1}{2}(12)(11)= 66 \ in^{2}[/tex]
But there are four triangle faces, so [tex]A_{faces} =4(66)=264 \ in^{2}[/tex].
Therefore, the area of each triangular face is 66 square inches.
So, the total surface area would be the sum
[tex]S=144+264=408 \ in^{2}[/tex]
Therefore, Gabriel needs 408 square inches to paint the whole model.
Answer:
144 66 408
Step-by-step explanation:
True or false: When Solving Inequalities, IF you divide (or multiply) both
sides of the inequality symbol by a negative number, THEN you MUST FLIP
THE DIRECTION of the symbol. For example, a "<" becomes a ">" symbol. *
Answer:
True
Step-by-step explanation:
Which polygons are similar??
Answer:
1 and 4
Step-by-step explanation:
Under which operations are polynomials closed?
Answer:
addition, subtraction, and multiplication
Step-by-step explanation:
I need help with this please
Answer:
Step-by-step explanation:
Antelope, Montana:
21, 30, 42, 58, 70, 79
Range- 58 79-21= 58
Quartile 1- 30
Quartile 3- 70
Interquartile Range- 40 70-30= 40
Augusta, Maine:
28, 32, 41, 53, 66, 75
Range- 47
Quartile 1- 32
Quartile 3- 66
Interquartile Range- 34
Alain throws a stone off a bridge into a river below.
The stone's height (in meters above the water), xxx seconds after Alain threw it, is modeled by h(x)=-5x^2+10x+15
What is the height of the stone at the time it is thrown?
Answer:
3 seconds.
Step-by-step explanation:
Answer:
15 meters
Step-by-step explanation:
I think the other guy answered the question similar to this one where it shows how many second but guys its height in meters anyway bye have a great day!!! :D
What is the vertex of this quadratic equation? Y=2(x-2)^2+5
Answer:
vertex = (2, 5 )
Step-by-step explanation:
The equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
y = 2(x - 2)² + 5 ← is in vertex form
with (h, k) = (2, 5 ) ← vertex
HELP ASAP!
A rectangular cardboard has dimensions as shown. The length of the cardboard can be found by dividing its area by its width. What is the length of the cardboard in inches?
Rectangle with width labeled on the right, width equals 4 and 1 over 4 inches. Below the rectangle, it says, length equals question mark. Inside the rectangle, it says, area equals 41 and 2 over 3 square inches.
9 and 41 over 51
10 and 1 over 4
36 and 5 over 6
174 and 29 over 48
Answer:
9 and 41 over 51
Step-by-step explanation:
divide 41 2/3 by 4 1/4
Answer:
9 and 41 over 51
Step-by-step explanation:
mark the other anser as branly not me ok
6 square root -16 + 4 square root -49
Answer:
I think it's like 20.8....but I'm not sure
please answer this(picture attached)
explain if you can but if not that is ok :)
Answer:
5 and 6 are the roots
.................
Answer:
x1=5, x2=6
Step-by-step explanation:
solve for h(2) h(t) = t2 − t + 7
if h(t) = t² - t +7
h(2) = -5
I hope it helps
Answer fast, please
The length of a rectangle is 3/2 units greater than its width. If the width is w, which expression gives the perimeter of the rectangle in terms of its width?
A. 4w + 3
B. 7/2w – 3
C. 5w
D. 6w + 4
Answer:
C
Step-by-step explanation:
L=3w/2
P=2l+2w
3w+2w=5w
Please mark as Brainliest! :)
Have a nice day.
Your Answer is 4w+3. I had this question
If you put 3 teaspoons of baking soda in for every 8.5 ounces of water, how much baking soda do you put in 8 ounces of water?
Answer:
2.66667 OR 0.375
Step-by-step explanation:
Answer:
the exact amount is 2.823529412 which is about 3 teaspoons.
Step-by-step explanation:
[tex]\frac{3}{x} =\frac{8.5}{8} \\[/tex]
You can then criss cross
and get x= [tex]\frac{24}{8.5}[/tex]
x=2.823529412
AWARDING BRAINLIEST
Answer:
A
Step-by-step explanation:
3 times 3 plus 1 is 10 which makes it greater than 7
Answer:
B
Step-by-step explanation:
[tex]3m-1>7-1\\3m>6\\3m/3>6/3\\m>2[/tex]
here is the next questions brainliest to the first who answer it
Answer:
Look at the attachment
A $5,000 principal is invested in two accounts, one earning 1% interest and another earning 6% interest. If the total interest for the year is $170, then how much is invested in each account?
Answer:
$2600 was invested on the 1% account while $2400 was invested on the 6% account.
Step-by-step explanation:
For simple interest we must apply the following formula:
M = C*r*t
Where M is the amount of interest generated, C is the invested money, r is the rate of interest and t is the elapsed time.
The sum of capital investead in each account, "x" for the 1% interest one and "y" for the 6% interest one, must be equal to the original $5000. The same way as the interest generated from these investments must be equal to the earnt $170. So we have:
x + y = 5000
For the first account:
M1 = x*0.01*1 = 0.01*x
For the second account:
M2 = y*0.06*1 = 0.06*y
The sum of interests:
0.01*x + 0.06*y = 170
We have a system of equations as shown below:
x + y = 5000
0.01*x + 0.06*y = 170
Multiplying the first equation by -0.01 and adding both equations we have:
-0.01*x - 0.01*y = -50
0.01*x + 0.06*y = 170
0.05*y = 120
y = 120 / 0.05 = $2400
x = 5000 - 2400 = $2600
$2600 was invested on the 1% account while $2400 was invested on the 6% account.
Two angles in a triangle measure 102 degrees and 67 degrees. What is the measure of the third angle?
11 degrees
78 degrees
113 degrees
169 degrees
Answer:
11 degrees
Step-by-step explanation:
The sum of the interior angles of a triangle is 180 degrees.
From 180 degrees we subtract the sum of 102 degrees and 67 degrees, obtaining 11 degrees (first answer choice)
Answer:
11 degrees
Step-by-step explanation:
hope this helps and sorry if im wrong
Dan has a farm. 7/12 of the farmland are devoted to corn.n What percentage of the farmland is devoted to corns? (round to the nearest tenth of a percent).
Answer:
58.3% of the farm is devoted to corn.
Explanation:
The fraction 7/12 as a percent is 58.3%.
the number
When you multiply the number twice, you._______ the number
Answer:
square
Step-by-step explanation:
when multiplied by itself the number is squared
Find the sum of the first 4 multiples of 10
Answer:
100
Step-by-step explanation:
First four multiples of 10 are :
10 , 20 , 30 , 40
So their sum is
10+20+30+40 = 100
Find the length of each object to the nearest centimeter
and millimeter.
6.Width of a book
7. Length of a pencil
PLS HELP HURRY I WILL MARK BRAINLESS IF THE ANSWER IS GOOD!
the width of a book is about ("25 x 20cm")
the length of a pencil is about 15cm (19cm if unsharpened)
Look at the figure below.
What is the measure of Angle ACB
Hey there!
Since these angles share the same vertex (point where the lines that make the angle meet), they are congruent (they have the same value). Therefore, we can write the following equation.
4x-12=2x+48
We add 12 to both sides.
4x=2x+60
We subtract 2x from both sides.
2x=60
We divide both sides by 2.
x=30
Now, we can plug this in to find the measure of angle ACB. Whenever you see an angle that is named with three letters, the middle one is its vertex and the other two are the end points.
m∠ACB=4(30)-12
m∠ACB=120-12
m∠ACB=108
I hope that this helps! Have a wonderful day!
Can anyone create an exponential growth function from a growth rate of 35%????
Thank you
Answer:
there is this video
Step-by-step explanation:
just look up this
How do you find the growth rate of an exponential function? hope this helps you will find your answer i hope
help please ASAP
what is the simplest form for this ratio?
7 : 11
Answer:
7/11
Step-by-step explanation:
Answer:
7 : 11 = 7 /11
Solution:
Try to reduce the ratio further with the greatest common factor (GCF).
The GCF of 7 and 11 is 1
Divide both terms by the GCF, 1:
7 ÷ 1 = 7
11 ÷ 1 = 11
The ratio 7 : 11 cannot be reduced further by dividing both terms by the GCF = 1 :
This ratio is already in lowest terms.
Therefore:
7 : 11 = 7 /11
Evaluate the expression of 1 + |9 + 2|
Answer: 12
Step-by-step explanation:
1 + |9 + 2|
1+ 11 = 12
Answer:
12
Step-by-step explanation:
[tex]1+|9+2|\\1+|11|\\1+11\\12[/tex]
Which is the correct verb?
The temperature outdoors is rapidly _____.
rising
raising
Which is the correct verb?
Please ________ by me in the auditorium.
sit
set
Which is the correct verb?
She ________ on the couch while reading the paper.
lay
laid
Which is the correct verb?
My dog, Penny, _______ in the corner waiting for me to whistle.
sat
set
Answer:
risingset (not sure)laysatA rectangle and a parallelogram have the same base and the same height. How are their areas related? guys im just asking questions
Answer:
A rectangle and parallelogram having same base and same height are equal in area
As area = base × height
Base and heights are equal , thus areaa are equal
plz answer will get brainliest
Answer:
4
Step-by-step explanation:
1/3 of 30 is 10
2/5 of 10 is 4
If Included in the table, which ordered pair (-4,1) or (1,-4), would result in a relation that is no longer a function. Explain your answer.
Answer:
(-4,1)
Step-by-step explanation:
Ordered pair (-4,1) means that x = -4 and f(x) = 1
Ordered pair (1,-4) means that x = 1 and f(x) = -4
From the table, we can see that the function is already defined for x = -4, but it is not defined for x = 1. So, the point (1,-4) can be included into the function, but the point (-4,1) cannot.
Here is a list of numbers:
47, 22, 22, 13, 77, 8, 18 ,100 ,70 ,4
Calculate the range.
Answer:
The range is 96.
Step-by-step explanation:
The definition of range is "The range of a set of data is the difference between the highest and lowest values in the set. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set." So subtract the highest value from the smallest value, and you get 96. pls mark brainliest.
Hope this helps.
Hello !
first, we need to find the smallest and the biggest number on the list:
4, 8, 13, 18, 22, 22, 47, 70, 77, 100
so it's 4 and 100
we substract the smallest from the biggest number :
100 - 4 = 96
96 is the range
× × i hope i helped you ! × ×