Answer:
[tex]area = \pi {r}^{2} \\ = 3.14 \times {(4)}^{2} \\ = 50.24 \: {cm}^{2} [/tex]
The Area of the lens is equal to 50.24 cm²
What is the area and circumference of a circle?The circumference (or) perimeter of a circle = 2πr units. The area of a circle = πr2 square units. Where r is the radius of the circle. The circumference of the circle or the perimeter of the circle is the measurement of the boundary of the circle. Whereas the area of the circle defines the region occupied by the circle.
Given here: Elliana is using a magnifying glass and radius of the magnifying glass has radius of 4 cm.
The formula for the area of a circle is A = πr², where r is the radius of the circle. The unit of area is the square unit, for example, m², cm², in², etc.
Thus Area of the lens of the glass is equal to A=πr²
=3.14×4²
=50.24 cm²
Therefore the len's Area is 50.24 cm²
Hence, The Area of the lens is equal to 50.24 cm²
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Nandini uses a code to open a security door.
The code is a letter followed by a 2-digit number.
The letter is P or Q.
The number is a prime number between 30 and 40
Write down all the possibilities for Nandini's code.
Answer:
57
Step-by-step explanation:
getting brainlys
10. 3(6a); a = 3
11. 5d(4); d = -2
12. (5r)(-2); r = -3
13. 3b(8) + (-2)(7c); b = -2, c = 3
14. -4(3s) + 2(-t); s = ½, t = -3
15. 9(4p) - 2(3q) + p; p = -1, q = 4
16. 7(4g) + 3(5h) + 2 (-3g); g = ½, h =⅓
Answer:
The answer is 1/65
Step-by-step explanation:
If , what is the truncation error for S4? 0.037 0.111 2.889 2.963
Answer:
Step-by-step explanation:
If [tex]\sum _{n=1}^{\infty }\:\frac{6}{3^n}=3[/tex] then, The truncation error for S4 is equal to 0.037.
We have given that,
[tex]\sum _{n=1}^{\infty }\:\frac{6}{3^n}=3[/tex]
We have to determine the value of S_4
Here plug the value n=4.
What is the series?A series is the sum of a sequence. In other words, a series is just the addition of all the terms in a sequence.
Therefore we get,
[tex]\sum _{n=1}^{\infty }\:\frac{6}{3^4}=3[/tex]
Therefore the value of S_4=0.037
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Which Situation is best represented by the integer -14? Please help!!!
Answer:
option J A carpenter shortens the length by 14in = length -14
in a game the player wins if he rolls a 4 on a number cube if the numbered cube is rolled 24 times then what is the reasonable prediction for the number of unsuccesful rolls
If you roll a numbered cube once, your chance of getting a 4 is 1/6. If you roll twice, your chance of getting a 4 is 2/12. If you roll three times, your chance of getting a 4 is 3/18. You see the pattern here? Try it yourself and see if you can get it! If you can't understand it, let me know and I'll give you the answer!
(I like to try and help before I just give the answer straight away!)
can anyone answer me bc this is confusing
Answer:
the answer is D. y=-1/2x
understand
Determine whether each relationship is a function
Hey please help me be geniune this is a timed test and I really need help will mark brianliest :( please no links I’m tired of seeing them
Answer:
510 ft^2
Step-by-step explanation:
(12*9)+(12*9)+(7*9)+(7*9)+(7*12)+(7*12) = 108+108+63+63+84+84 = 510 ft^2
Hope this helped! :)
i will give brainliest tovthe first person that answers
Answer:
hii
Step-by-step explanation:
HELP LOLLLLLLLLLLLLLLLLL
Answer:
15^2 + 20^2
[tex]\sqrt{625}[/tex] = 25
Step-by-step explanation:
3 A bag contains 60 red or black markers.
Each student in Mr. Jones's class selects a
random sample of 15 markers from the bag,
counts the number of black markers, and
returns the sample to the bag. What is a
reasonable estimate for the number of black
markers in the bag? Show your work.
8 9 10 11 12 13
Number of Black Markers
Answer:
40
Step-by-step explanation:
The answer is 40
y=2x - 1 and y= -x + 5
At what x-value are the equations equal?
X=0
X=1
X=2
X=3
Answer:
X=2
Step-by-step explanation:
When x is 2, y=3 for both equations
PLS WILL GIVE 100 POINTS AND MARK BRAINLEST
Answer:
angle 2 = 128 because of a rule that I unfortunately cannot remember the name of....
angle 6 = 180 - 47 = 133
because a straight line = 180 degrees
angle 3 = 180 - 128 = 52
Same reason as angle 6
angle 1 = 52 + 47 = 99
180 - 99 = 81
Sum of the angles in a triangle = 180
All of the underlined numbers are the answers
Hope that answers your question
Don't hesitate to comment if you are confused about something
Step-by-step explanation:
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
I don't want links.
I don't want links.
I don't want links.
Answer:
You have to find the greatest common factor of the numbers
Step-by-step explanation:
graph the equation y = -x^2 + 10x - 16 on the accompanying sex of axes. you must plot 5 points including the roots and the vertex
Answer:
This is what I got! Hope it helps! :)
The zeroes are (2, 0) and (8, 0),Vertex is (5, 9), remaining points plotted on the graph are (4,8) and (6,8).
What is graph of quadratic equation?The graph is not a line. This figure is called a parabola. Every quadratic equation has a graph that looks like this.
All parabolas of the form y = [tex]a{x}^{2}+bx+c[/tex] open upwards or downwards.
When the [tex]{x}^{2}[/tex] term is positive, the parabola opens upward, and when the [tex]{x}^{2}[/tex] term is negative, the parabola opens downward.
After plotting the equation [tex]y=-x^{2} +10x-16[/tex]
From the graph i have labelled 5 points, they are
As per the graph the zeroes are (2, 0) and (8, 0),Vertex is (5, 9), remaining points plotted on the graph are (4,8) and (6,8).
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centimeters, decimeters, meters, and kilograms are examples of what
HELPPPPPPP DUE IN 10 MINUTESS!!!
Answer the question Be for you will look up why a chainsaw was invented
Than comment on that answer when you know why
I am sorry in advance
Jamie deposits $627 into a savings account. The account has an interest rate of 3.5%, compounded quarterly. Write the function that gives the amount of money in dollars, J(t), in Jamie's account t years after the initial deposit.
The function that gives the amount of money in dollars, J(t), in Jamie's account t years after the initial deposit is A = 627(1.00875)^{4t} (in dollars)
How to calculate compound interest's amount?If the initial amount (also called as principal amount) is P, and the interest rate is R% per unit time, and it is left for T unit of time for that compound interest, then the interest amount earned is given by:
[tex]CI = P(1 +\dfrac{R}{100})^T - P[/tex]
The final amount becomes:
[tex]A = CI + P\\A = P(1 +\dfrac{R}{100})^T[/tex]
For this case, we're given that:
Initial amount Jamie deposits = P = $627Rate of interest = 3.5% compounding quarterlyTime = t yearsRate of interest is compounding quarterly.
Each year has 4 quarters.
Rate of interest is usually annual rate of interest. Since compounding is done quarterly, let we express everything in quarter years.
Quarterly interest rate compounding quarterly = 3.5/4 = 0.875% = R%
t years has 4t quarters = T
Thus, we get the final amount in Jamie's account as
[tex]A = P\left(1 +\dfrac{R}{100}\right)^T\\\\A = 627 \left(1 +\dfrac{0.875}{100}\right)^{4t}\\\\A = 627(1.00875)^{4t} \: \rm \text{(in dollars)}[/tex]
Thus, the function that gives the amount of money in dollars, J(t), in Jamie's account t years after the initial deposit is [tex]A = 627(1.00875)^{4t}[/tex] (in dollars)
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I need help with these 2 problems please, thank you
Answer:
1. y= (-4/11)x + 1/11
2. y= (3/5)x + 66/5
Step-by-step explanation:
Rewrite the expression as a single exponent
Answer:
9^7
Step-by-step explanation:
Answer:
9^7
Step-by-step explanation:
I hope this helps. :)
help me please andwer this
Answer:
B
Step-by-step explanation:
i am smart
Solve
Y/2 +22=38 for .
do u mind answering for some points?
Answer:
Step-by-step explanation:
Y = 32
Ms. Brockman wants to take her class on a trip to either the nature center or the zoo. The nature center charges $4 per student, plus $95 for a 1-hour naturalist program. The zoo charges $6 per student plus $75 for a 1-hour guided tour. Find the number of students where the two field trips would have the same cost.
Step-by-step explanation:
ten students.
4(10)+95=135
6(10)+75=135
4x+95=6x+75
-75+4x+95=6x+75-75
4x+20=6x
-4x+4x+20=6x-4x
20=2x
(20=2x)/2
x=10
Answer:
10 students
Step-by-step explanation:
4(10)+95=135
6(10)+75=135
4x+95=6x+75
-75+4x+95=6x+75-75
4x+20=6x
-4x+4x+20=6x-4x
20=2x
(20=2x)/2
x=10
11. The value of a piece of machinery, in dollars,
after t years is described by the function below.
f(t) = 12,500 - 1,600t
What is the value of the machinery after 4
years?
оооо
A. $7,700
B. $6,400
C. $6,100
D. $10,900
Solve for theta
[tex]solve \: for \: \alpha .[/tex]
, if Cos30 = 0.45
HELP ME
I WILL GIVE YOU BRAINLIEST
Answer: The mass of the remaining element = 1.1 grams .
Step-by-step explanation:
Exponential equation of decay: [tex]y=A(1-r)^x[/tex] ...(i), where A = intial value , r= rate of decay in decimal , x= time.
As per given :
Initial mass : A= 140 grams
Rate of decay : r= 21.6% per minute= 0.216 per minute.
x= 20 minutes
Substitute values in (i) , we get
[tex]y=140(1-0.216)^20\\\\=140(0.784)^2^0=1.077579422[/tex]
Hence, the mass of the remaining element = 1.1 grams .
What is the area of this triangle?
Answer: wide angle to feet over dgress 350
Step-by-step explanation:
Find the solutions to 9x2 - 63x = 0.
Check all that apply.
A. x = 0
B. X= 7
C. x = 9
D. x= -7
Answer:
its B
X=7
Step-by-step explanation:
A rectangular field is 96m. in length and 42 m. in breadth. A
path of uniform width 3m.
runs immediately inside its boundary.
Answer:
Correct option is
D
960m
2
Given length of is 50 meters and 42 meters broad and Inside rectangular lawn 6 m width
Then area of Lawn in length sides of rectangle=2×lengthofrectangle×widthofpath=2×50×6=600 sq m
And the of Lawn in width sides of rectangle=2×(widthofrectangle−2widthofpath)×widthofpath=2×(42−2(6))×6=2(42−12)6=60×6=360 sq m
Then total area of lawn path =600+360=960 sq m
Jean wants to invest a gift of $4,250 in the stock market. A broker suggests two companies, Solar Solutions (SOLR) and Frontline Medical (FLMD). He provides the probabilities for an annual return on $4,250 based on their historical gains: SOLR: 50% chance of $1,000 gain, 35% chance of $200 gain, 15% chance of $600 loss FLMD: 80% chance of $750 gain, 20% chance of $100 loss Which is the best analysis of these investments?
Answer:
the answer is the question with $580 in it please correct me if im wrong
Step-by-step explanation:
Jean can expect to earn about $580 on her investment of $4,250 if she invests in FLMD.
How to calculate the expected return?The expected return on SOLR is calculated by multiplying the probability of each outcome by the amount of the gain or loss, and then adding these results:
50% chance of $1,000 gain: 0.5 x $1,000 = $500
35% chance of $200 gain: 0.35 x $200 = $70
15% chance of $600 loss: 0.15 x -$600 = -$90
Therefore, the expected return on SOLR is $500 + $70 - $90 = $480.
The expected return on FLMD is calculated in the same way:
80% chance of $750 gain: 0.8 x $750 = $600
20% chance of $100 loss: 0.2 x -$100 = -$20
Therefore, the expected return on FLMD is $600 - $20 = $580.
Since the expected return on FLMD is higher than the expected return on SOLR, FLMD is the better investment.
The expected return on FLMD is $580, which means that Jean can expect to earn about $580 on her investment of $4,250 if she invests in FLMD.
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