Which calculation gives an approximation of the area of this circle in cm square??
3 x 8 =
3 x 4 =
3 x 16 =
3 x 9 =
Answers
Answer:
3*16
Step-by-step explanation:
r²≈4*4
4≈3.92
3≈3.14(π}
3*8=24
3*4=12
3*16=48
3*9=27
The area of the circle in cm square is 48 cm
Related Questions
A net and the prism it will form when it is folded are shown below.
A prism is made up of 4 rectangles with a base of 12 centimeters and height of 11 centimeters and 2 rectangles with a base of 12 centimeters and height of 10 centimeters.
What is the surface area of the prism in square centimeters?
724 square centimeters
972 square centimeters
1,089 square centimeters
1,320 square centimeters
Answers
Answer:
724
Step-by-step explanation:
PLEASE MARK BRAINLIEST!!!!!!!!!Answer: 724
Step-by-step explanation: I multiplied and then got this i also did the quiz for this :) have a good day!
Michael deposited $1,500 into a savings account with a simple interest rate of 2%. How much money will he have in his account after 4 years if no additional deposits or withdrawals are made?
Answers
Answer:
$1,620
Step-by-step explanation:
2% per year:
2% of 1,500 = 30
30 x 4 = 120
1500 + 120 = 1620
ZABD and ZDBC are supplementary angles.
What is the measure of x?
x = [?]
7D
AK
100%
B
>C
Angles are not drawn to scale
Answers
Answer:
Solution given:
x+100=180°{linear pair}
x=180-100
x=80
Answer:
x = 80
Step-by-step explanation:
<ABD and <DBC
Anh randomly surveyed 36 students
Answers
Anh randomly surveyed 36 students to see if there was interest in starting the 7th grade science club he found 4 students said they would be interested if 180 students are in the 7th grade how many can be expected to join?
4/36 = x/180
180/36 = 5
20/180
20 students would be intrested
The table shows the results of drawing 44 cards from a deck of 104 game cards. After each draw, the card is replaced.Based on the results, what is the chance that a draw results in a wild card?
Cards :Wild|Number|Penalty|
Freq: 10 | 32 | 2 |
10/44, =
5/22
Name one attribute of a square that is not an attribute
Answers
Solve the following quadratics equation for all values of x in simplest form
9(3x - 7) ^2= 16
Answers
Answer:
x= 17 /9 or x= 25 /9
Step-by-step explanation:
9(3x - 7) ^2= 16
9(3x - 7) ^2-16= 0
as we know that (a-b)^2=a^2-2ab+b^2
9((3x)^2-2(3x)(7)+(7)^2=0
solving this we got the below equation
81x2−378x+425=0
By Factorizing the equation
(9x−17)(9x−25)=0
9x−17=0 or 9x−25=0
x= 17 /9 or x= 25 /9
Will name brainliest
Congruence proofs and reasons
Reasons must be from this list:
Reflexive property, segment bisector, angle bisector, linear pair, transitive property, perpendicular, SAS, ASA, CPCTC, AAS, HL, and SSS
Every word may not be used, but each may not be used more than once.
Answers must be structured as:
17,
2:
3(1):
3(2):
18,
2:
3:
4(1):
4(2):
19,
2:
3:
4:
5:
6:
7(1):
7(2):
20,
2:
3:
4:
Answers
Answer:
huh? Can you put it in a pdf
Step-by-step explanation:
An item on sale cost 80% of the original price. If the original was$75.00 what is the sale price
Answers
Answer:
sale prive would be 15$ but 60$ off
Step-by-step explanation:
Answer:
$60
Step-by-step explanation:
To solve this problem you can multiply 75 by .8, 80%, or 8/10. Multiplying by these numbers is equal 80%
please help with this ixl question
Answers
Answer:
I think it would be 25 hours
Step-by-step explanation:
Im not exactly sure but if she prepared 25 kg all together and prepares 1 kg every hour, then i think that would be 25 hours.
I hope this helps :)
Please tell me if im wrong
use the distributive property to multiply -7(-p+6)
Answers
Answer:
-7(-p+6)
Step-by-step explanation:
Answer:
-7(-p+6)
Step-by-step explanation:
Answer:
[tex]7p-42[/tex]
Why:
To use the distributive property, you multiply all things within the parantheses by the -7 (in this case). To Multiply -p and -7, remember that a negative times a negative equals a positive, so it simply results in 7p. When you multiply -7 and 6, multiply them together and you get -42. You get [tex]7p+-42[/tex], but that's not a fully simplified equation, so get rid of the addition symbol and make the 42 positive. This expression is now fully simplfied into [tex]7p-42[/tex].
P.S. Never ever add a negative in an expression. Lots of teachers like to dock your points for doing it.
The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. Below is the Excel output from a study to see whether there is evidence of a difference in the mean amounts of time required to reach a customer service representative between two hotels. Assume that the population variances in the amount of time for the two hotels are not equal.
t-Test: Two-Sample Assuming Unequal Variances
Hotel 1 Hotel 2
Mean 2.214 2.0115
Variance 2.951657 3.57855
Observations 20 20
Hypothesized Mean Difference 0
df 38
t Stat 0.354386
P(T<=t) one-tail 0.362504
t Critical one-tail 1.685953
P(T<=t) two-tail 0.725009
t Critical two-tail 2.024394
A) State the null and alternative hypotheses for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels.
B) What is the value of the test statistic for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels? Explain how you obtain.
C) What is the critical value for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels at the 5% level of significance? Explain how you obtain.
D) Suppose α = 0.05. Which of the following represents the correct conclusion for a test on a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels?
1) There is no evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels.
2) There is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels.
3) There is no evidence that the variabilities of the amount of time required to reach a customer service representative between the two hotels are the same.
4) There is evidence that the variabilities of the amount of time required to reach a customer service representative between the two hotels are the same.
Answers
Answer:
A) H0: σ₁²-σ₂²= 0 against the claim Ha: σ₁²-σ₂²≠0
B) t= 0.3543860
C) t≥ t∝/2 ( d.f)=2.024394
D)1) There is no evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels.
Step-by-step explanation:
The claim is that there is evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels which is the
alternate hypothesis
The null hypothesis is the reverse of the alternate hypothesis
The null hypothesis is that there is not enough evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels.
Part A) H0: σ₁²-σ₂²= 0 against the claim Ha: σ₁²-σ₂²≠0
Part B) t= x1`-x2`/ sqrt ( s₁²/n₁ + s₂²/n₂)
t= 2.214- 2.0115/ sqrt ( 2.951657/20+ 3.57855/20)
t= 0.2025/ sqrt(0.14758285 + 0.1789275)
t= 0.2025/0.5714108
t= 0.3543860
Part C) for 2 tailed test the critical value of t is obtained by
t≥ t∝/2 ( d.f)= ± 2.024394
We look at the table with values 0.025 as ∝/2= 0.05/2= 0.025
in the degrees of freedom 38
The d.f = n1+n2-2= 20+20-2= 40-2= 38
Part D) Since the calculated value of t= 0.3543860 does not fall in the critical region t≥ t∝/2 ( d.f)= ± 2.024394 we conclude that H0 is true and accept the null hypothesis.
So option 1 is correct
1) There is no evidence of a difference in the variability of the amount of time required to reach a customer service representative between the two hotels.
José is making fruit-filled tart shells for a party. He has 180 raspberries and 72 blueberries. The tarts will
each have the same number of berries. Raspberries and blueberries will not be in the same tart. If he puts
the greatest possible number of fruits in each tart, how many tarts can he make?
When the greatest possible number of berries is in each tart, there are
tarts in total.
Answers
Answer:
There will be 36 berries in each tart
I need help SHOW YOUR WORK
Answers
Answer:
[tex] F)\displaystyle \: 100\pi{ x}^{8} {y}^{2} {z}^{ 6} [/tex]
Step-by-step explanation:
we are given r and the formula
we want to find the surface area of the shpare with the given r
to do so
we need our algebra skills
substitute the value of r:
[tex] \displaystyle \: S = 4\pi( {5x}^{4} y {z}^{ 3} {)}^{2} [/tex]
recall law of exponent
[tex] \displaystyle \: ({x}^{m} {)}^{n} \iff \: {x}^{mn} [/tex]
to simplify:
[tex] \displaystyle \: S = 4\pi({ {5}^{2} x}^{4 \times 2} {y}^{1 \times 2} {z}^{ 3 \times 2} )[/tex]
simplify multiplication:
[tex] \displaystyle \: S = 4\pi({ 25x}^{8} {y}^{2} {z}^{ 6} )[/tex]
distribute:
[tex] \displaystyle \: S = 100\pi{ x}^{8} {y}^{2} {z}^{ 6} [/tex]
hence our answer is F
Use the equation and type the ordered-pairs.
Y = 2^x
Answers
Answer:
(0,1)
Step-by-step explanation:
HELP PLEASEEEEEEEEEEEEE
What is the rate of change for f(x) = -2 cos 4x – 3 on the interval from x = 0 to x = pi over 4 ?
Answers
Answer:
-5.04199038
Step-by-step explanation:
(y2-y1)/(x2-x1)
Plus, mthway can double check
A right rectangular prism is shown what is the volume in cubic inches of the prism
Answers
Answer:
Step-by-step explanation:
Exact value is (130 )
Answer:
130
Step-by-step explanation:
The safest way for someone to make an online purchase is to
A.ask friends what websites are secure.
B.check with the government first.
C.buy from a reputable website.
D. visit a locally run website.
Answers
Answer:
It is C - buy from a reputable website
Step-by-step explanation:
I got it right on the quiz. Good luck and may the Lord bless you!
Step-by-step explanation:
The safest way for someone to make an online purchase is to buy from a reputable website.
We have given that,
A.ask friends what websites are secure.
B.check with the government first.
C.buy from a reputable website.
D. visit a locally run website.
We have to determine
The safest way for someone to make an online purchase is to
What is the online purchases?Online shopping is a form of electronic commerce that allows consumers to directly buy goods or services from a seller over the Internet using a web browser or a mobile app.
Therefore option C is correct.
Therefore the safest way for someone to make an online purchase is to buy from a reputable website.
To learn more about the online purchases visit:
https://brainly.com/question/14414476
#SPJ2
Juliette is a waitrees at Applebee's. The total for one of the tables she served was $51.87. The table wants to leave her an 18% tip. How much should Juliette make for her tip?
Answers
Answer:
They should leave Juliette about a $9.34 tip because 18% of 51.87 is 9.3366 which rounds up to 9.34
Answer:
18% of $51.87=9.3366tip is a required tip.
integrate x
[tex]x4[/tex]
Answers
Answer:
The result of the integration is [tex]\frac{x^5}{5}[/tex]
Step-by-step explanation:
Integration of a power of x:
The integration of a power of x is:
[tex]\int x^{n} dx = \frac{x^{n+1}}{n+1}[/tex]
In this question:
[tex]n = 4[/tex]. So
[tex]\int x^{4} dx = \frac{x^{4+1}}{4+1} = \frac{x^5}{5}[/tex]
The result of the integration is [tex]\frac{x^5}{5}[/tex]
During a baskethall game, you want to pass the ball to either Player A or Player B. You estimate that Player B is about 15 feet from you, as shown. How far away from you is Player A?
Answers
Answer: 19.2 ft
Step-by-step explanation:
The distance between you, Player A and Player B are in the form of a right angled triangle so using the Pythagorean Rule, we can find the distance between you and Player A.
c² = a² + b²
c = hypotenuse = Distance between you and player A
a = Length of triangle
b = Height of triangle
c² = 12² + 15²
c² = 144 + 225
c = √369
c = 19.2 ft
A right triangle has side lengths d, e, and f as shown below.
Use these lengths to find tanx, sinx, and cosx.
Answers
Answer:
tanx=d/f, sinx=d/e, cosx=f/e
Step-by-step explanation:
Find the opposite, Adjacent and hypotenuse of the right triangle.
Opposite= d , Adjacent= f, Hypotenuse= e
Tanx = opposite/adjacent
Sinx= opposite/hypotenuse
Cosx= adcajent/hypotenuse
Qi. calculate the thickness of a disc of
a diameter 14cm and Surface area
is 3cm?
Answers
Answer:
Thickens (Height) = 0.068 cm
Step-by-step explanation:
Given:
Diameter of disc = 14 cm
Radius of disc = 14 / 2 = 7 cm
Surface area = 3 cm²
Find:
Thickens (Height)
Computation:
Disc is a cylinder in shape
Surface area = 2πrh
3 = 2(22/7)(h)(7)
3 = 44(h)
Thickens (Height) = 0.068 cm
please help i need the number of visita
Answers
answer
x=28
explanation
so what would happen is you pay a fee of 22$ and then 1$ per visit and we are looking to see how many visits it take to get to 50$
what we do it put
22+x=50
x is how many visits it would take to 50$
so what we do is subtract 22 from both sides
x=50-22
x=28
Item $80 yesterday. Today it's $36. What's the % difference
Answers
Answer:
$36 is 45% of $80. The percent difference is 55%.
Step-by-step explanation:
Find the general solution of the differential equation and check the result by differentiation. (Use C for the constant of integration.)
[tex]\frac{dy}{dx}[/tex] = 4x^1/6
Answers
Answer:
For this we can first multiply both sides by dx:
[tex]dy = 4x^{1/6}dx[/tex]
Next we can integrate both sides:
[tex]\int dy = \int 4x^{1/6}dx\\[/tex]
We can then solve both integrals to get:
[tex]y = 4(\frac{6}{7}x^{\frac{7}{6}}+C_1) = \frac{24}{7}x^{\frac{7}{6}}+C_2[/tex]
We can just say the constant is C2. So the answer is
[tex]y = \frac{24}{7}x^{\frac{7}{6}}+C_2[/tex]
We can also check this by differentiating both sides. We will ultimately get the equation we with. If I made any mistakes or misread something, please let me know.
A triangular prism is 37 millimeters long and has a triangular face with a base of 20
millimeters and a height of 24 millimeters. The other two sides of the triangle are each 26
millimeters. What is the surface area of the triangular prism?
Answers
formula- tsa of prism- 2*area of trangular base + lateral surface area
to make easy
area of trangular base = 1/2(breathe×height)
lateral surface area =
area of trangluar bases+ perimeter of trangular base
find the surface area of this prism. geometry hw
Answers
Answer:
395.2 cm²
Step-by-step explanation:
2x12.7x6.72=170.688
2x6.72x5.78=77.6832
2x5.78x12.7=146.812
170.688+77.6832+146.812=395.1832
Answer: A=395.2
Step-by-step explanation:
A=2(wl+hl+hw)
A=2[(12.7x5.78)+(6.72x5.78)+(6.72x12.7)]
A=2(73.406+38.8416+85.344)
A=2(197.5916)
A=395.1832
Rounded to nearest tenth..
A=395.2
Circle all of the sums which
are odd.
11 + 22
42 + 96
55 + 86
Answers
Answer:
11+22, and 55+86
Step-by-step explanation:
11+22 = 33 which is odd
55+86 = 141 which is also odd
42+96 = 138 which is EVEN
Even is the opposite
of odd
Which set of segment lengths could be used to construct a triangle?
A)
3,7,12
5, 7, 17
5,3,12
D)
12, 6, 10
Answers
9514 1404 393
Answer:
D) 6, 10, 12
Step-by-step explanation:
The sum of the two shortest must exceed the longest. This is only the case for the segment lengths in choice D.
6 + 10 > 12
Answer:
the answer is D. 6 ,10 ,12
Janet saved $400 dollars. She decided to spend 130 on clothes. What percentage of her money did she spend on clothes?
Answers
Answer:
32.5
Step-by-step explanation: