If AC=22 BC=19 in a figure what is the radius?
Answers
Answer:
11.09units
Step-by-step explanation:
Find the diagram attached
The radius of the circle is line projecting from the center to the circumference. Hence AB is the radius of the circle.
To get AB, we will use the pythagoras theorem as shown;
Given
AC=22
BC=19
AC² = AB²+BC²
22² = AB²+19²
AB² = 22²-19²
AB² = 484-361
AB² = 123
AB = √123
AB = 11.09
Hence the radius of the circle is 11.09units
Related Questions
I NEED HELP ASAP PLS HELP!
Answers
You: 3, 6, 9, 12
Friend: 4, 8, 12, 16
Your friend sells 16 tickets.
Answer:
you is 5 and friend is 12 and 16 your friend sells 16 tickets
Step-by-step explanation:
w + what - s = w
help plz help helppp i want help
Answers
Answer: S
Step-by-step explanation:
w + ? - s = w
w + s - s = w
w = w
In the drawing below, line h is parallel to line k.
What is the value of y?
A. 135
B. 15
C. 35
D. 145
Answers
Answer:
D. 145
Step-by-step explanation:
the lines are parallel, so you can set the two expressions equal to each other:
2x + 5 = 3x - 10
x - 10 = 5
x = 15
then plug in x to the angle next to y: 2(15) + 5 = 35°
180 - 35 = 145°
I really need help with this!!
Which expression is equivalent to (7x-5) - (3x - 2)?
A. 10x-7
B. 10x-3
C. 4x-7
D. 4x-3
Answers
Find the slope of the line.
Answers
Answer:
3/3 or 1
Step-by-step explanation:
Remember the slope of the line is y/x
You can either count the distance going from point 1 to point 2 or
subtract (4-1)/(4-1)= 3/3
Much concern has been expressed regarding the practice of using nitrates as meat preservatives. In one study involving possible effects of these chemicals, bacteria cultures were grown in a medium containing nitrates. The rate of up take of radio-labeled amino acid (in dpm, disintegrations per minute) was then determined for each culture, yielding the following observations:
7251 6871 9632 6866 9094 5849 8957 7978 7064 7494 7883 8178 7523 8724 7468
Suppose that it is know that the mean rate of uptake for cultures without nitrates is 8000. Do the data suggest that the addition of nitrates results in a decrease in the mean rate of uptake? Test the appropriate hypotheses using a significance level of .10.
Please use all 9 steps to answer this question with exact numbers in the question. Thank you!!
1. Describe the population characteristic about which hypotheses are to be tested.
2. State the null hypothesis H0.
3. State the alternative hypothesis Ha.
4. Choose the significance level, a, for the test. Note: Many times a will be specified in the problem, so just state it here. If it is not given, you are free to choose an appropriate significance level like a = .05
5. Check to make sure that any conditions/assumptions required for the test are reasonable. Note: Even if you believe that the assumptions have not been met, make a note of that and then say, "but we will proceed with the test anyway".
6. Clearly display the test statistic to be used and calculate the observed value of the test statistic.
7. Determine the P-value associated with the observed value of the test statistic.
8. State the conclusion (reject H0 or fail to reject H0) with reference to the level of significance.
9. State a final conclusion in the context of the problem.
Answers
Answer:
1) μ = 8000
2) H0: μ ≥8000
3) Ha: μ < 8000
4) α= 0.10
5) If the sample size is at least 15 a student's t test can be used.And we assume that the variances of the two independent groups are almost equal.
6) t= x`- μ/ s.d/ √n = -0.816
7) The P- value = 0.214083.
8) The critical region is [-∞, -1.345]
9) Fail to Reject the Null Hypothesis
Step-by-step explanation:
1) The population characteristic is the population mean =μ = 8000
2) The claim is that the addition of nitrates results in a decrease in the mean rate of uptake i.e μ < 8000
The null hypothesis is that μ ≥ 8000
2) Null hypothesis: H0: μ ≥8000
3) Alternative hypothesis: Ha: μ < 8000
4) The significance level alpha = α= 0.10
5) If the sample size is at least 15 a student's t test can be used.And we assume that the variances of the two independent groups are almost equal.
Calculating mean and standard deviation using a calculator
Sample Size, n: 15
Mean= ∑ x/n = x`=: 7788.8
∑ x/n= 116832/15
St Dev, s.d(n-1) : 1002.4307
6) Test Statistic: student's t Test with d.f = n-1 = 14
t= x`- μ/ s.d/ √n
t= 7788.8-8000/1002.4307/√15
t= -0.816
7) The P- value for the observed t value is 0.214083.
The result is not significant at p < 0.10. H0 is accepted.
8) The Critical value for one sided t test at α =0.1 with 14 d.f is less than t= -1.3406
Hence the critical region is [-∞, -1.345]
Since the calculated t -0.816 value does not fall in the critical region [-∞, -1.345] there is not sufficient evidence to reject H0
9) Fail to Reject the Null Hypothesis
Sample does not provide enough evidence to support the null hypothesis and conclude that the data suggest that the addition of nitrates do not result in a decrease in the mean rate of uptake. The claim is rejected.
Find the volume of the solid generated by revolving the shaded region about the given axis.
About the y-axis
Choices:
21π
49π
(21/2)π
42π
Answers
Answer:
nice man! its good
Please help me! This is due tomorrow and I really need some help! Thank you.
Answers
Answer:
A
Step-by-step explanation:
3.5 x 1 x 1.4 = 4.9
Answer:
A. 4.9ft³
Step-by-step explanation:
V= LxWXH
V= 3.5x1.4x1= 4.9
V= 4.9ft³
HELP!!!!! Find each missing length to the nearest tenth.
Answers
A file that is 242 megabytes is being downloaded. If the download is 13.2% complete, how many megabytes have been downloaded? Round your answer to
the nearest tenth.
Answers
Answer:
31.9 mb
Step-by-step explanation:
242 is the total amount of megabytes in this situation so times 242 by .132 is equal to 13.2% of the total amount of megabytes
(1.5×10^3)+(2.5×10^2) in standard form
Answers
I hope this helps you :)
Have a great week
what is the answer to this simplify
2(3 + 5y)
Answers
Answer:
6 + 10y
Step-by-step explanation:
Hi,
To begin, you need to distribute the 2 to 3 and 5y (same thing as multiplying it).
2(3 + 5y)
6 + 10y
(Multiply the 2 by 3 and then the 2 by 5y)
Since 6 doesn't have a variable and 10y does, you can't combine them and, therefore, 6 + 10y is your answer.
I hope this helps :)
Lucas and Tayvan can paint a house in 1 hour working together. If Tayvan works alone, he can paint the house in 1.5 hours. How long would it take Lucas to complete the job on his own?
Answers
Answer:
1 hour
Step-by-step explanation:
no explanation its common sense lol
Lucas can complete the work on his own in 3 hours if Lucas and Tayvan can paint a house in 1 hour working together. If Trayvon works alone, he can paint the house in 1.5 hours.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
Lucas and Tayvan can paint a house in 1 hour working together. If Trayvon works alone, he can paint the house in 1.5 hours.
Let x be the time that took by Lucas to complete the job on his own
From the question:
1/x + 1/1.5 = 1/1
Because Trayvon can paint the house in 1.5 hours
After solving the above equation:
1/x = 1 - 1/1.5
1/x = (1.5-1)/1.5
1/x = 0.5/1.5
x = 1.5/0.5
x = 3 hours
Thus, Lucas can complete the work on his own in 3 hours if Lucas and Tayvan can paint a house in 1 hour working together. If Trayvon works alone, he can paint the house in 1.5 hours.
Learn more about the fraction here:
brainly.com/question/1301963
#SPJ2
"Fifty-seven more than two times j"
Answers
Answer:
2j+57
Step-by-step explanation:
Two times a umber j is expressed as 2j
if Fifty-seven is more than two times j", this means we will have to add 57 to 2j as shown;
f(j) = 2j + 57
Hence the statement written as a function is expressed as 2j+57
What is the value of x?
Answers
Answer:
The value of x=12
Step-by-step explanation:
because the whole thing is 90 and the other angles are equal to 78 if you add them together. So you would subtract 90-78 which equals 12.
What's the perimeter of rectangle DEFG, shown?
O A) 28
B) 34
C) 40
OD) 17
Answers
please help me I will give a brainlist
Answers
Answer:
I think this is helpful .
Help please, i need this asap.
Answers
Answer:
Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.
what is 150 divided by 625 step by step
Answers
Answer:
150 dived by 625 is 0.24 I'm not sure how to explain it
Karen has 3 1/4 feet of ribbon she's uses 1 3/4 feet to wrap gifts
Answers
what is the question asking? all you said was that Karen has 3 1/4 feet of ribbon and she uses 1 3/4 feet to wrap gifts
lliana is painting a picture. She has green, red, yellow, purple, orange, and blue paint. She wants her painting to
have four different colors.
If order does not matter, in how many ways can she pick four colors if green must be one of them?
4
6
10
15
O
Answers
Answer:
6 is correct
So Iliana has 6 ways to pick for colors, if green is not one of them. :)
Please help me with my math
Answers
Answer:
47.5 yd²
Step-by-step explanation:
Area = 1/2 ( base x height )
Area = 1/2 ( 19 x 5 )
Area = 1/2 ( 95 )
Area = 47.5 yd²
o
Which statement is not true?
1. ET is perpendicular to plane BAD.
2. ET is perpendicular to plane FAB.
3. ET is perpendicular to plane CAD.
4. ET is perpendicular to plane BAT.
Answers
Answer:
4.) ET is perpendicular to plane BAT
Step-by-step explanation:
Will give brainlst
Have a nice day
Answers
Answer:
7/2
Step-by-step explanation:
[tex]12x=4(x+2)+20\implies\\12x=4x+8+20\implies\\12x=4x+28\implies\\8x=28\implies\\x=28/8=7/2[/tex]
[tex]y=8x+12[/tex]
Answer:
14/4 , y = 8x + 12
Step-by-step explanation:
12x = 4x + 28
x= 14/4
.
y = ax+b
a is the slope
b is the y intercept
Choose the step in which the first error occurs. Then evaluate the expression to find the correct answer.
3−(5−32+4)+6^2·(−2)
3−0+6^2·(−2) step 1
3−0+36·(−2) step 2
3−0+(−72) step 3
75 step 4
The first error occurs in step____ .
The value of 3−(5−32+4)+62·(−2) is ____.
Answers
Answer:
The first error occurs in Step 3
The value of the equation is -69
Step-by-step explanation:
The error is that 3-0+(-72) is actually supposed to be 3-0-72 because once you multiply the positive 36 and the negative 2, the equation automatically becomes negative.
evaluate 13+(43÷2)×5−17 .
Answers
Answer:
103.5
Step-by-step explanation:
13 + (43 ÷ 2) × 5 - 17
13 + 21.5 × 5 - 17
13 + 107.5 - 17
107.5 - 4
103.5
I recommend using an app called “Photomath” for math problems
What is the answer to this
Answers
Move y over 6 units to the right
In which you will get
(2,4)
What is the approximate area of the shaded sector ?
Answers
Answer:
7.5 cm²
Step-by-step explanation:
Area of shaded sector = θ/360 × πr²
Where,
θ = 180° - 84° = 96°
r = ½(6) = 3 cm
Area of shaded sector = 96/360 × π × 3²
Area = 7.53982238 ≈ 7.5 cm²
what is a decimal that is equivalent to the fraction 59/100?
Answers
Answer:
0.59
Step-by-step explanation:
Answer:
The decimal equivalent to 59/100 is 0.59
Step-by-step explanation:
100 fits into 59: 0.59 times
What are the solution(s) to the quadratic equation 40 - x2 = 0?
O x = +2/10
O x = +4/10
O x = +2/5
x = +4V5
Answers
Answer:
±2sqrt(10)
Step-by-step explanation:
40 - x^2 = 0
Add x^2 to each side
40 -x^2 + x^2 = x^2
40 =x^2
Take the square root of each side
±sqrt(40) =sqrt(x^2)
±sqrt(4)sqrt(10) =x
±2sqrt(10) =x