10. If ABCD is a kite, DB=48 in. and CE=7 in. find DC. *
49 in.
23 in.
25 in.
47 in.
Answers
Answer:
25 in.
Step-by-step explanation:
DEC is a right triangle. <DEC is a right angle.
(DE)² + (EC)² = (DC)²
DE = ½DB = ½(48 in.) = 24 in.
(24 in.)² + (7 in.)² = (DC)²
576 in.² + 49 in.² = (DC)²
(DC)² = 625 in.²
DC = 25 in.
Related Questions
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
264cm^3
Step-by-step explanation:
8 × 5 × 5 = 200
8 × 1 × 8 = 64
200 + 64 = 264
Which rules define the function graphed below? Edge
Answers
Answer:
B
Step-by-step explanation:
In the first part for every x, y is the value of x plus 2, while in the second part for every x. y is 5
Find the median.
68.4, 57.6, 72.3, 105, 82.9, 120.3
Answers
Answer:
Median=
77.6
by-step explanation:
- Elaina <3
hope this help ;)
Which is MOST LIKELY to occur, based on the given probability?
If you cannot see, zoom in and I apologize for the blurriness.
DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWER! Whoever gets the correct answer will get BRAINLIEST! :)
Answers
Answer:
Option D would be the correct answer
Hope this helps!
The measure of HELP PLESSE
Answers
Answer:
[tex]51.3[/tex]
Equations of Exponential Functions
Given the following equation of an exponential function
R = 10.5(0.535)t
determine the base, b, of the exponential model. Is the base a growth or decay factor?
a. b is 0.535; It is a growth factor.
b. b is 0.535; It is a decay factor.
c. b is 10.5; It is a growth factor.
d. b is 10.5; It is a decay factor.
Please select the best answer from choices provided
Answers
Answer:
B. B is 0.535; It is a decay factor.
Step-by-step explanation:
I calculated it logically
Answer:
B. b is 0.535; It is a decay factor.
Which is the standard form of the equation of the parabola that has a vertex of (3, 1) and a directrix of x = -2?
Answers
Answer:
C
Step-by-step explanation:
Edge 2021
Answer:
c. (y-1)^2=-20(x-3)
Step-by-step explanation:
edge 2021
Which data set could be represented by the box plot shown below? Choose 1 answer:
(Choice A)
2, 3, 5, 5, 7, 7, 8, 10, 11
(Choice B)
2, 3, 5, 5, 6, 7, 8, 8, 11
(Choice C)
2, 3, 5, 5, 6, 7, 8, 10, 11
(Choice D)
3, 3, 5, 5, 6, 7, 8, 9, 11
Answers
Answer:
B
Step-by-step explanation:
Which of the following are reasons why a bank may establish a multinational operation?
Answers
Answer:
multinational banking operations help a bank prevent the erosion of its traveler's check, tourist, and foreign business markets from foreign bank competition.
mark me brainliest.
- Joy and John MacAllister have agreed to purchase a house for $79,900. First
National Savings & Loan is willing to lend the money at 7.5 percent for
25 years, provided the MacAllisters can make a $19,900 down payment. The
total closing cost is 3.5 percent of the amount of the mortgage. What is their
total closing cost?
Answers
Answer:
Step-by-step explanation:
Can someone please help me with this question? I’m so confused!
Answers
1/x^7
Step-by-step explanation:
To the 7th power is positive. It's the first one.
Hope this helps, have a good day!
it is A because X is unknown u can put 0 as a denominator so it 1 the X is still unknown and your exponents are 0
answer t h i s. p l e a s e
Answers
Help asap 6th grade math
Answers
Answer:
the answer is 7
Step-by-step explanation:
because 7×31=217 so that means she wrote 7 pages each day for 31 days
A certain disease has an incidence rate of 0.2%. If the false negative rate is 4% and the false positive rate is 2%, compute the probability that a person who tests positive actually has the disease.
Answers
The total number of positive tests, in this background of 0.3% prevalence, will be (as a fraction of all tests):
True positive results plus false positive results:
(0.003 x 0.94) + (0.997 x 0.02) = 0.00282 + 0.01994 = 0.02276
So, if 100,000 people in this population are tested,
2276 will have a positive test result.
Only 282 of those testing positive will actually have the disease.
18 people who have the disease will be missed in this testing.
The predictive value of a positive result is the number of true positives divided by the total number of positives, 282 ÷ 2276 = .123905…….., or 12.4%
87.6% of persons testing positive for the disease will not have the disease in this background of low disease prevalence.
If disease prevalence is different, these numbers will be different.
Let’s suppose we have an epidemic, and the prevalence is now ten percent, thirty-three times the level in the original case. The calculation is now:
True positive results plus false positive results:
(0.10 x 0.94) + (.90 x 0.02) = 0.094 + 0.018 = 0.112
Notice, that with the increase in prevalence of the disease, true positives have increased from .00282 to .094, a factor of 33.3, the same multiple as the increase of the disease in the population, and the false positives have decreased by about 10%, the same decrease as the number of true negatives in the population. All of the false positives came from people who don’t have the disease. Since there are now fewer of them in the population, as they’ve been replaced by people who have the disease, there are now fewer false positives.
The new predictive value of a positive result is: .094 ÷ .112 = .839, or 83.9%. This is 6.77 times the first result.
Find the product of 3y^3(6y^2-9y+6)
Answers
Answer: Simplified expression- [tex]18y^{5} - 27y^{4} + 18y^{3}[/tex]
Step-by-step explanation: You get the product by simplifying it.
I tried my best, I hope this it what you were looking for:)
if someone takes your food is it still sharing
Answers
Answer:
not unless you want them to have it :)
Step-by-step explanation:
Hudson and his children went into a bakery where they sell cupcakes for $4.75 each
and brownies for $2 each. Hudson has $30 to spend and must buy at least 7 cupcakes
and brownies altogether. If x represents the number of cupcakes purchased and y
represents the number of brownies purchased, write and solve a system of
inequalities graphically and determine one possible solution.
Answers
The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives and middle managers range from a low of 1 (very dissatisfied) to a high of 5 (very satisfied).
Probability
Job Satisfaction Score IS Senior Executives IS Middle Managers
1 0.05 0.04
2 0.09 0.10
3 0.03 0.12
4 0.44 0.45
5 0.39 0.29
1. What is the expected value of the job satisfaction score for senior executives (to 2 decimals)?
2. What is the expected value of the job satisfaction score for middle managers (to 2 decimals)?
3. Compute the variance of job satisfaction scores for executives and middle managers (to 2 decimals).
4. Compute the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals).
5. What comparison can you make about the job satisfaction of senior executives and middle managers?
Answers
Answer:
1.)E₁ = 4,03
2) E₂ = 3,85
3) σ₁² = 1,23
4)σ₂² = 1,14
5)σ₁ = 1,11
6)σ₂ = 1,07
5 ) Distribution of senior executive and Middle Manager look pretty similar , diference in median 0,18 and difference in standard deviation 0,04
Step-by-step explanation:
1.-Expected value of the job satisfaction score for senior executive
E₁, variance σ₁ and standard deviation σ₁ and expected value of the job satisfaction score for Middle Manager E₂ variance σ₂ and standard deviation σ₂
E(X) = ∑ ( xi *f(xi)
JSS IS senior executive IS Middle Managers
1 0,05 0,04
2 0,09 0,1
3 0,03 0,12
4 0,44 0,45
5 0,39 0,29
∑ xi*f(xi) = 1*0,05 + 2 *0,09 + 3*0,03 + 4 * 0,44 + 5 * 0,39
E₁ = 0,05 + 0,18 + 0,09 + 1,76 + 1,95
1.)E₁ = 4,03
2.) ∑ xi*f(xi)
E₂ = 1* 0,04 + 2 * 0,1 + 3*0,12 + 4*0,45 +5*0,29
E₂ = 0,04 + 0,2 + 0,36 + 1,8 + 1,45
E₂ = 3,85
2 ) E₂ = 3,85
3) Variance of job satisfaction scores for senior executives.
x² f(x) x²* f(x)
1 0,05 0,05
4 0,09 0,36
9 0,03 0,27
16 0,44 7,04
25 0,39 9,75
σ₁² = [ ∑ x²*f(x) ] - μ² ∑ x²*f(x) = 17,47
In this case μ = E μ² = ( 4,03)² = 16,24
For senior executives: σ₁² = 17,47 - 16,24 = 1,23
σ₁² = 1,23
And standard deviation σ₁ = 1,11
For Middle managers
x² f(x) x²* f(x)
1 0,04 0,04
4 0,1 0,4
9 0,12 1,08
16 0,45 7,2
25 0,29 7,25
∑ x²*f(x) = 15,97
σ₂² = 15,97 - (3,85)² = 15,97 - 14,82
σ₂² = 1,14
σ₂ = √1,14 = 1,07
5 ) Distribution of senior executive and Middle Manager look pretty similar , diference in median 0,18 and difference in standard deviation 0,04
Factorise 2(x-y)-a(y-x)
Answers
Answer:
( a + 2 ) ( x - y )
Step-by-step explanation:
2 ( x - y ) - a ( y - x )
= 2 ( x - y ) + a ( x - y )
= ( 2 + a ) ( x - y )
= ( a + 2 ) ( x - y )
Hence factorised.
WHAT IS THE ANGLE MEASUREMENTS?? AND TELL ME HOW YOU GOT IT.
PLEASE ANSWER !! ILL GIVE BRAINLIEST !!
50 POINTS !!
FAKE ANSWERS WILL GET REPORTED .
Answers
Answer:
18,72,90
Step-by-step explanation:
Let the measure of /_M be 'x'. As reported,
/_N is 5 times of x = 5x
/_O is 4 times of x = 4x
In any ∆, sum of interior angles is 180°.
=> /_M + /_O + /_N = 180
=> x + 4x + 5x = 180
=> 10x = 180
=> x = 180/10 = 18
Angles are x = 18°
4x = 4(18°) = 72°
5x = 5(18°) = 90°
Solve algebraically the simultaneous equations 2x^2-y^2=17 x+2y=1
Answers
Here we go...
= 2x² - y² = 17
= 2x² = 17 + y²
= x² = 17 + y²/2
= x = √17+y²/2
= x + 2y = 1
= x = 1 - 2y
___________________
Sry,if i misunderstood the question.. do let me know in the comment section
Which of the following are examples of irrational numbers? Select all that apply.
V4 + V16
15+ 36
√9+ /24
2.v4
49.81
Answers
Answer:
A rational number is a number that can be expressed as a fraction (ratio). This includes whole numbers, square roots that can be solved evenly, negatives, decimals, and repeating decimals that can be solved with a fraction. An irrational number is a number that is NOT rational. It's the complete opposite!
= 2 + 4 = 6 ↔ rational
= 2 * 2 = 4 ↔ rational
= 7 + 9 = 16 ↔ rational
Hope this helps!!
PLEASE HELP ME 10 POINTS!!!!! PLEASE
What type of transformation moved the red triangle (rotation, dilation, reflection, translation. Describe the movement in details (how x and Y were changed), give evidence.
Answers
Answer:
Translation
Step-by-step explanation:
It only moved, without changing in size, rotating, or being reflected. so its been translated.
An article presents benzene conversions (in mole percent) for 24 different benzene hydroxylation reactions. The results are 52.3 41.1 28.8 67.8 78.6 72.3 9 19.0 30.3 41.0 63.0 80.8 26.8 37.3 38.1 33.6 14.3 30.1 33.4 36.2 34.6 40.0 81.2 59.4 Can you conclude that the mean conversion is greater than 30? Compute the appropriate test statistic and find the P-value. The appropriate test statistic and the P-value are and , respectively. Round the test statistic to two decimal places and the P-value to four decimal places. We (Click to select) conclude that the mean conversion is greater than 30.]
Answers
Answer:
Test statistic = 3.21;
Pvalue = 0.0019;
Reject H0 and conclude that the mean conversion rate is greater than 30.
Step-by-step explanation:
Hypothesis :
NULL ; H0 : μ = 30
ALTERNATIVE ; H0 : μ > 30
Sample, x : 52.3 41.1 28.8 67.8 78.6 72.3 9 19.0 30.3 41.0 63.0 80.8 26.8 37.3 38.1 33.6 14.3 30.1 33.4 36.2 34.6 40.0 81.2 59.4
Sample Mean, xbar = 43.71 (using calculator)
Sample standard deviation, s = 20.95 ( calculator)
Sample size, n = 24
Take, α = 0.05
Test statistic :
(xbar - μ) ÷ (s/√n)
(43.71 - 30) ÷ (20.95/√24)
13.71 / 4.2764008
Test statistic = 3.21
Degree of freedom, df = n - 1 = 24 - 1 = 23
The Pvalue, using a Pvalue calculator : (3.21, 23)
Pvalue = 0.001942
Pvalue = 0.0019 ( 4 decimal places).
Decison :
Reject H0 ; if Pvalue ≤ α
Since Pvalue is very low and lesser than α ` We reject H0 and conclude that the mean conversion rate is greater than 30.
Pls help me, if you get it right I will give you Brainlist!
Answers
Answer:
370 m²
Step-by-step explanation:
Front and back
a = 2(11 * 6)
a = 132 m²
Right and left sides
a = 2(7 * 6)
a = 84 m²
Top and bottom
a = 2(11 * 7)
a = 154 m²
______________________
total
a = 132 + 84 + 154
a = 370 m²
Which statement best explains the relationship between
lines FG and HJ?
O They are perpendicular because their slopes are
equal,
O They are perpendicular because their slopes are
negative reciprocals,
O They are not perpendicular because their slopes are
equal,
• They are not perpendicular because their slopes are
not negative reciprocals.
Answers
Answer:
You have to see for yourself on the picture we cannot see. But from these statements alone it's either the second or the fourth option.
Step-by-step explanation:
They are perpendicular because their slopes are equal - Doesn't make sense, they would be parallel not perpendicular
They are perpendicular because their slopes are negative reciprocals - Makes sense
They are not perpendicular because their slopes are equal - Makes sense but it does not explain their relationship as well as the statement above
They are not perpendicular because their slopes are not negative reciprocals - Makes sense since that's how perpendicular lines work.
Conclusion, since we can't see the lines. You have to see for yourself on the picture we cannot see. But from these statements alone it's either the second or the fourth option.
If you add a picture I can narrow it down.
Miss Harris writes three checks for exactly $3000 what was the change in her bank account??
Answers
In the line plot, how many more students live 2 miles from school than students that live 1 mile from school?
Answers
Answer:
3 more students
Step-by-step explanation:
6-3=3
How did you get that?
6 students live 2 miles away, while only 3 students live 3 miles away. To find the difference, subtract the two numbers.
Help please I’ll give extra points
Answers
Answer:
56
Step-by-step explanation:
180-124 ....................
Verena sleeps from 11 p.m. until 9a.m. What fraction of a day does Verena sleep? *