Answer:
Step-by-step explanation:
Ff
Answer:
md
Step-by-step explanation:
jc
TIMED ASSESSMENT
The sum of the circumferences of circles A, B, and C is 63 7. Find AC.
Work must be shown
Answer:
AC = 28
Step-by-step explanation:
small circle circumference = π2x
medium circle = π6x
large = π10x
π2x + π6x + π10x = 63π
π18x = 63π
18x = 63
x = 3.5
AC = 3x + 5x = 8x
AC = 8 x 3.5 = 28
The length of AC is 28 units.
What is a circle?Every point in the plane of a circle, which is a closed, two-dimensional object, is equally separated from the center. All lines that cross the circle join together to produce the line of reflection symmetry. Every angle has rotational symmetry around the center, in addition a segment of a line that connects the center of a circle to any point on the circle. The radius of the circle is denoted by "R" or "r."
As per the given data:
We are given a diagram in which 3 circles and a triangle is drawn.
The radius of all the circles is given, and the sum of the circumference of all the circles is also given.
The sum of the circumference is 63π.
⇒ 2π(3x) + 2π(x) + 2π(5x) = 63π
⇒ 18πx = 63π
⇒ x = 3.5
The length AC is given by:
= Radius of circle A + Radius of circle C
= 3x + 5x
= 8x
= 8(3.5)
= 28 units
The length of AC is 28 units.
Hence, The length of AC is 28 units.
To learn more about circle, click:
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Which two expressions are equivalent? B. A 4(2 + x) 4.2 +2.x 4 + 2 + x (4 + 2) + X D. C. 4. X + 2 4. (x + 2) 4 = (2-x) 4- 2 = X
Noorish is taking a trip to Hong Kong. Her flight leaves Toronto at 8 PM on a Tuesday. Her flight will take 15 hours. What time will she arrive in Hong Kong (Hong Kong time)?
Answer:
The time that Noorish will arrive in Hong Kong is 24:00 (Hong Kong Time).
Step-by-step explanation:
Since Noorish is taking a trip to Hong Kong, and her flight leaves Toronto at 8 PM on a Tuesday, and her flight will take 15 hours, to determine what time she will arrive in Hong Kong (Hong Kong time), knowing that the Hong Kong time is +8 and Toronto time is -5, the following calculation must be performed:
8PM = 20:00
-5 to +8 = 13
20:00 + 13:00 = 09:00
09:00 + 15:00 = 24:00
Therefore, the time that Noorish will arrive in Hong Kong is 24:00 (Hong Kong Time).
What is 86 x 53
First to answer gets brainliest and a 5 star rating
Answer:
4558
Step-by-step explanation:
Answer:
[tex] = 86 \times 53 \\ = 4558[/tex]
This is worth my grade plz help 20pt
Answer:
C
Step-by-step explanation:
According to Math.way C would be the correct answer :)
Write this number in standard form: 6,000,000 + 900,000 + 80,000+ 9,000 + 500+ 80+ 2
6,989,582 hope this hels
A biology teacher has developed a new method of teaching chi-square tests to her students. She claims this new method will improve scores on the national exam. An experiment is to be conducted to determine if there is sufficient evidence to make that claim. Which is a correct description of a Type I error? A Type I error would occur if evidence showed an improvement on the national exam and there really was improvement. A Type I error would occur if evidence showed an improvement on the national exam but there really was no improvement. A Type I error would occur if there was no evidence of an improvement on the national exam but there really was improvement. A Type I error would occur if there was no evidence of an improvement on the national exam and there really was no improvement. A Type I error would occur if the mean of the national exam increased for all students, not just the students of this biology teacher.
Answer:
A Type I error would occur if there was no evidence of an improvement on the national exam but there really was improvement.
Step-by-step explanation:
A type 1 error simply occurs when we incorrectly reject a true null hypothesis. In the scenario above, An experiment was conducted in other it know if there is sufficient evidence to support a claim that a new teaching method developed improves students score. If this claim is actually true in the real sense. However, after conducting a statistical test, we conuded that there was no sufficient evidence to support her claim of improvement using the new method, hence, the claim was rejected. By rejecting the claim, a true null has been rejected. Hence, a type 1 error has been committed.
What value of n is the solution to n - 247 = 605 – (4 x 28)?
Step-by-step explanation:
n-247=605-(4x28)
n-247=605-112
n-247=493
n=740
The price of a gallon of milk follows a normal distribution with a mean of $3.20 and a standard deviation of $0.10. What proportion of the milk vendors have prices that were less than $3.12 per gallon
Answer:
[tex]P(x<3.12)= 0.21186[/tex]
Step-by-step explanation:
Mean [tex]\=x=\$3.20[/tex]
Standard deviation [tex]\sigma =\$0.10[/tex]
Estimated price [tex]y=\$3.12[/tex]
Generally the equation for P(x<3.12) is mathematically given by
[tex]P(x<3.12)=P(\frac{y-x}{\sigma}<-\frac{3.12-3.20}{0.10})[/tex]
[tex]P(x<3.12)=(z<-0.8)[/tex]
Since from Z table
[tex]P(x<3.12)= 0.21186[/tex]
Therefore the proportion of the milk vendors that have prices that were less than $3.12 per gallon is
[tex]P(x<3.12)= 0.21186[/tex]
ANSWER THIS ASAP DONT SEND A FILE AT ALL !! I NEED THE QUICK ONLY ANSWER IF YOU REALY KNOW !!
Answer: 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.
Step-by-step explanation:
john went to a party at 5:00 and left at 8:00 how much minutes was he at the party
Answer:
a hour is 60 minutes he was at the party for three hours so 60 times 3 = 180
Answer:
180 minutes
Step-by-step explanation:
60 minutes are in a hour he was gone for 3 hours so its 60x3=180
sin W= 0.23
Please help!!!!
Answer:
[tex]W = 13.29^\circ[/tex]
Step-by-step explanation:
Given
[tex]\sin(W) = 0.23[/tex]
Required
Find W
Take arc sin of both sides
[tex]W = \sin^{-1}(0.23)[/tex]
Using a calculator
[tex]W = 13.29^\circ[/tex]
Dana ran on Monday and Tuesday.
She ran 5 2/10km on Monday.
She ran 4
6/100
km on Tuesday.
How far did Dana run altogether?
Correct answer:
9 26/100 km
Simply just add them. :)
. A section of rope 5 inches long represents 20% of the length of the entire rope. How long is the rope?
Answer:
full length = 25 in.
Step-by-step explanation: .
20% is 1/5 of 100% so in order to find 100% of the length, multiply 5in (20%) by 5 to get to the 100% which will give you 25in.
mmw-qdtk-wah come.
pleaseee helppppppp!!
Answer:
AED means the entire angle
I AEB is 29 degrees and BEC is 12 degrees, the 29+12=41 degrees.
x=89-41
x=48 degrees
hope it helps :)
Answer:
If AED =89
Then CED = 29+12=41
89-41=48
Omg please help this is IMPORTANT
Answer:
first one is correct and second also but in third it is incorrect and fourth is correct so C is incorrect
Answer:
C
Step-by-step explanation:
the quotient of a number means n divided by or n/
and twelve plus four, means that is the second part of the expression
n/ 12+4 would be correct instead of 12/n +4
please help me without using a link.Thank you!
Answer:
O
Step-by-step explanation:
A.y: tan(x-n)+2
D.y: tan(x + 2)-11
C.y: tan(x-T) 2
OD.y: tan(2(x+n)).2
HELPP PLSSSSSSS
Answer:
The answer here is
(c)y=tan (x-Π)-2
expand : log3(x^3/81y^2)
Answer:
Use rules of logarithms to expand.
2
log
3
(
x
)
−
4
−
4
log
3
(
y
)
Step-by-step explanation:
Can you please help me? (Don’t mind the hearts)
angle 3 = 127°.
I hope this may be helpful
f(x) = x^2. what is g(x)?
Simplify −6+13x−7−16x
I am a 2-digit number greater than 50. One of my
factors is 8 and I, myself, am a factor of 360. The
difference between my digits is 5.
What number am I?
Answer:72
Step-by-step explanation: greater than 50 ( 8x9=72 ) And 72 is a factor of 360, difference between my digits is 5 (72x5=360)
Tim left $3000 in an account that
paid 8% interest compounded
annually. How much interest did
Tim earn in 2 years?
Answer:
499.20
Step-by-step explanation:
3000
x.08. Interest rate
= 240 interest after one year
+. 3000
=3,240 principal plus interest after one year
x. .08
259.20. Interest in year two
+ 240.00 interest in year one
= 499.20. Interest earned in 2 years
Can someone please help!
Martha has a jar that contains 5 red marbles and 7 white marbles. She randomly draws one marble and then draws another marble. What is the probability of drawing two white marbles if the marbles are drawn:
(a) without replacement?
(b) with replacement?
Answer:
the probability is 2/12
you might have to explain what replacement means
Part 3. Use side to determine if the triangles in each pair are similar. If so, complete the similarity statement. NO LINKS.!!!!
9514 1404 393
Answer:
1) Not Similar
2) Not Similar
Step-by-step explanation:
1) The side length ratios, shortest to longest, are ...
VU : UW : WV = 27 : 39 : 52 (reduced)
DC : CE : ED = 12 : 19 : 24 (reduced)
The side length ratios are different, so the triangles are NOT SIMILAR.
__
2) The side length ratios, shortest to longest are ...
MK : KL = 13 : 19 (reduced)
HK : KG = 6 : 9 = 2 : 3 (reduced)
The side length ratios are different, so the triangles are NOT SIMILAR.
Answer:
2) The side length ratios, shortest to longest are .. MK : KL = 13: 19 (reduced) HK : KG = 6:9 = 2:3 (reduced) The side length ratios are different, so the triangles are NOT SIMILAR.
(09.02)
Solve x2 - 8x - 20 = 0. (1 point)
x = 4, x = -5
x = -4, x = 5
x = 2, x = -10
x = -2, x = 10
Answer:
x = - 2, x = 10
Step-by-step explanation:
Given
x² - 8x - 20 = 0
Consider the factors of the constant term (- 20) which sum to give the coefficient of the x- term (- 8)
The factors are - 10 and + 2 , since
- 10 × 2 = - 20 and - 10 + 2 = - 8 , then
(x - 10)(x + 2) = 0
Equate each factor to zero and soilve for x
x + 2 = 0 ⇒ x = - 2
x - 10 = 0 ⇒ x = 10
The volume of a cylindrical container is 226 cubic centimeters. The height of the container is 8 centimeters. Find the
radius of the container. Round your answer to the nearest whole number.
The radius is about how many
centimeters?
Answer: 3cm
Step-by-step explanation:
The volume of a cylinder is calculated by using the formula:
Volume = πr²h
where,
π = 3.14
r = unknown
h = height = 8cm
Volume = πr²h
3.14 × r² × 8 = 226
25.12r² = 226
Divide both side by 25.12
r² = 226/25.12
r² = 8.9968
r² = 9 approximately
r = ✓9
r = 3
The radius is 3cm
