Answer: Elijah would be 42 inches tall
Step-by-step explanation:
We all know that Samuel is 48 inches while Elijah is 6 inches shorter.
You subtract 6 from 48 to get 42.
Hopefully, this helped. :D
what is 20 x4 please i need a answer quickly
Find the equation of a circle that has a diameter with endpoints given by the points
A(-4,1) & B(4,2).
Step-by-step explanation:
The endpoints of the diameter are A(-4,1) and B(4,2) . For finding the equation of circle we need to find the centre and the radius.
Coordinates of centre can be find out by the midpoint formula.
\( \implies Center = \bigg(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\bigg)\\\\\implies Centre = \bigg(\dfrac{-4+4}{2},\dfrac{1+2}{2}\bigg)\\\\\implies \boxed{\boxed{Centre = (0 , 1.5)}}\)
Now the measure of radius can be obtained by half the distance between them.
\(\implies D = \sqrt{ (x_2-x_1)^2+(y_2-y_1)^2}\\\\\implies D =\sqrt{ (4+4)^2+(2-1)^2}\\\\\implies D = \sqrt{ 64 + 1 }\\\\\implies D =\sqrt{65} \\\\\implies \boxed{\boxed{ Radius = \dfrac{\sqrt{65}}{2} }}\)
We know the general equation of circle as ,
\(\implies (x-h)^2+(y-k)^2= r^2\)
(h,k) is centre r is radius.\(\implies (x-0)^2+ (y-1.5)^2 = \bigg(\dfrac{\sqrt{65}}{2} \bigg)^2\\\\\implies x^2 + (y-1.5)^2=\dfrac{65}{4} \\\\\implies\boxed{\boxed{ 4x^2+4(y-1.5)^2 = 65 }}\)
(i) Write the zeroes of the polynomial by using above graph.
(ii)Form a quadratic polynomial for above graph.
(iii)If a,1/a are the zeroes of polynomial 2x² -x +8k, then find the value of k.
please answer
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There is no real Value of k that will satisfy the equation 2x² - x + 8k = 0 if a and 1/a are the roots of the polynomial.
(i) Zeroes of the polynomial:
In the graph, we have two points where the curve intersects the x-axis: one is at (-1,0), and the other is at (2,0).The corresponding values of x are -1 and 2, and they are the zeros of the polynomial. Therefore, the zeros of the polynomial are -1 and 2.(ii) Forming the quadratic polynomial:
From the graph, we can observe that the curve intersects the y-axis at the point (0,5), implying that the constant term of the polynomial is 5.
We can use the formula to find the quadratic polynomial if we have two zeros and one constant term. Thus, the quadratic polynomial is given by:(x + 1)(x - 2) = x² - x - 2x + 2 = x² - 3x + 2. Therefore, the quadratic polynomial is x² - 3x + 2.(iii) Value of k if a, 1/a are the zeroes of the polynomial 2x² - x + 8k:
We know that a and 1/a are the zeroes of the polynomial 2x² - x + 8k. Therefore, we can find the sum and product of the roots and use them to determine the value of k.
The sum of the roots is a + 1/a, and their product is a(1/a) = 1. Using the sum and product of the roots, we can write: a + 1/a = 1/2 (1/2 is the coefficient of x)Substituting a with 1/a in the above equation, we get: 1/a + a = 1/2Multiplying both sides of the equation by 2a, we get: 2 + 2a² = a
Simplifying the equation, we get: 2a² - a + 2 = 0Multiplying both sides by 2,
we get: 4a² - 2a + 4 = 0Dividing both sides by 2, we get: 2a² - a + 2 = 0
Using the quadratic formula, we get: a = [1 ± √(1 - 4(2)(2))]/(2(2))
Simplifying, we get: a = [1 ± √(-31)]/4Since the discriminant of the quadratic formula is negative, the roots are imaginary. Therefore, there is no real value of k that will satisfy the equation 2x² - x + 8k = 0 if a and 1/a are the roots of the polynomial.
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Which of the following is the correct diagnosis code to report a tibial closed fracture, proximal end, of the left leg, initial encounter?
A.S82.191A
B.S82.191B
C.S82.102A
D.S82.102B
The correct diagnosis code to report a tibial closed fracture, a proximal end, of the left leg, the initial encounter is A.S82.191A.
Explanation:
Diagnosis codes are used to accurately report a patient's condition or injury. The code S82.191A specifically refers to a closed fracture of the proximal end of the tibia on the left leg, with this being the initial encounter for treatment.
The other options, S82.191B, S82.102A, and S82.102B do not accurately describe the condition or injury in question. S82.191B refers to a subsequent encounter for the same injury, while S82.102A and S82.102B refer to a closed fracture of the right leg's upper end of the tibia.
Therefore, the correct answer is A.S82.191A.
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7 Convert 34.5 degrees Celsius to
7)
Farenhet using the formula a
1.F
'F=(9 15) ic +32one
b) or
C) 32.05 h
be
d) 94.1
ut
ta) 62.1
Answer:
94.1 °F
Step-by-step explanation:
The formula is ...
F = 9/5C +32
Using 34.5 for C, we get ...
F = 9/5(34.5) +32 = 62.1 +32 = 94.1
34.5 °C = 94.1 °F
Simplify the expression:
3(5s + 2) =
Answer:
The answer is =15s+6
Step-by-step explanation:
3(5s + 2)
=15s+6
Answer:
15s+6
Step-by-step explanation:
Use the distributive property and multiply the 3 to each of the terms in the second pair of parenthesis.
Starting salaries of 130 college graduates who have taken a statistics course have a mean of $44,783. The population standard deviation is known to be $10,272. Using 99% confidence, find both of the following:
A.The margin of error:
B. Confidence interval:
A. The margin of error for a 99% confidence interval is $$2,320.75.
B. The confidence interval for the mean starting salary of college graduates who have taken a statistics course is CI = $42,462.25 to $47,103.75
How to find both of the margin of error and confidence interval?PART A.
The margin of error (ME) is determined using the formula:
ME= z ∗ σ/√n
where:
z is the z-score for the desired confidence level
σ is the population standard deviation
n is the sample size
For a 99% confidence level, the z-score is 2.576. The population standard deviation is $10,272, and the sample size is 130.
Substituting these values into the formula, we have:
ME = 2.576 ∗ 10272/√130
ME = $2,320.75
PART B
The confidence interval (CI) is determined using the formula:
CI = \(\bar{x}\) ± ME
where:
\(\bar{x}\) is the sample mean
ME is the margin of error
The sample mean is $44,783, and the margin of error is $2,320.75.
Substituting the values into the formula, we get:
CI= 44783 ± 2320.75
CI = $42,462.25 to $47,103.75
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Solve the proportion.
47/39 = b/2
A: 94/39
B: 78/47
C: 47/78
D: 39/94
Answer:
b = 94/79
Step-by-step explanation:
47/79 = x/2
79x = 94
x = 94/79
Complete the table for the function y = ^3√x + 7.
Answer:
D. 5, 6, 8, 9
Step-by-step explanation:
Simply plug in the x values into the function to find the y values:
y = ∛(-8) + 7 = 5
y = ∛(-1) + 7 = 6
y = ∛1 + 7 = 8
y = ∛8 + 7 = 9
Answer:
5, 6, 8, 9
Step-by-step explanation: I took the test
What are the steps, in order, needed to solve 3x + 4 = 13? Divide by 3, and then subtract 4. Multiply by 3, and then add 4. Add 4, and then multiply by 3. Subtract 4, and then divide by 3.
Answer:t
Step-by-step explanation:
3x + 4 = 13
3x = 9
x = 3
Option 3
Answer:
subtract 4 then divide by three
Step-by-step explanation:
21x - 56 = -2 what is x?
Answer:
About 2.57
Step-by-step explanation:
\(21x-56=-2 \\\\21x=54 \\\\x\approx 2.57\)
Hope this helps!
Answer:
I got 2.5
Step-by-step explanation
1) add 56 to both sides to get 21x = 54
2) divide both sides by 21
3) you should get 2.5
if we scale this figure by 600% , what will be the new side length
Answer:
3 if 2d, 2 if 3D
I think have an amazing day and stay safe and stay home
NEED HELP!!!!!!!!!!!!!!!!!!
Answer:
-3
Step-by-step explanation:
-8-(-3) is the same as -8+3
-8+3=-5
What is 3 1/2 miles - 3,520 yards ( And put your answer in miles)?
Answer:
1.5 miles
Step-by-step explanation:
There are 1760 yards in 1 mile, take 1760*3.5 to get the total yards in 3.5 miles. It’s =6,160. Take 6,160-3,520 and you get 2,640. Take 2,650/1760 to get 1.5 miles remaining.
1.5 miles is the value of \(3\frac{1}{2}\) miles - 3,520 yards.
What is Unit of Measurement?A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
We know that 1 yard=0.000568 miles.
We need to convert 3520 yards to miles
3250 yards=3250(0.000568)miles
=1.846miles=2 miles
\(3\frac{1}{2}\) miles - 3,520 yards
Convert \(3\frac{1}{2}\) to improper fraction
7/2 miles-2 miles
3.5 miles - 2 miles
1.5 miles
Hence, 1.5 miles is the value of \(3\frac{1}{2}\) miles - 3,520 yards.
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I need help with a math question
Answer:
£38,907
Step-by-step explanation:
11x30=330
89.80+28.10=117.90
117.90x330=£38,907
Let A and B be any two events. Which of the following statements, in general, are false? P(A∣B)+P(A∣B)=1
Option A and B : This statements is generally false in probability theory.
A. P(A ∪ B) = P(A) + P(B) - This statement is generally false in probability theory. This is known as the inclusion-exclusion principle, which states that the probability of the union of two events is equal to the sum of their individual probabilities minus the probability of their intersection.
B. P(A | B) = P(A) - This statement is generally false in probability theory. In general, P(A | B) is not equal to P(A) because the occurrence of event B affects the probability of event A.
C. P(A ∩ B) = P(A)P(B) - This statement is generally true in probability theory. This is known as the independent events rule, which states that the probability of the intersection of two independent events is equal to the product of their individual probabilities.
D. P(A | B) + P(A' | B) = 1 - This statement is generally true in probability theory.
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Let A and B be any two events. Which of the following statements, in general, are false? P(A∣B)+P(A∣B)=1
A. P(A ∪ B) = P(A) + P(B)
B. P(A | B) = P(A)
C. P(A ∩ B) = P(A)P(B)
D. P(A | B) + P(A' | B) = 1
Miles recorded his height, in inches, from age 10 to age 18, as shown in the table. Age, x 10 11 12 13 14 15 16 17 18 Height, y 54 58 61.5 64.5 68 70 73 74 74.5 What is the square root function that best models this set of data?
Answer: Y=10.76 √(x-9.12)+43.64
Step-by-step explanation:
Which inequality represents the phrase below? a number more than 72 A. x < 72 B. x > 72 C. x > 71 D. x = 72
Answer:
the answer is. C.i hope this helps sorry if im wrong
5/8 of the pens in a box are blue pens. 4/5 of the remaining are red pens.what fraction of the pens are red ?
Match to the correct one
Answer:
1. b_ 2. a_ 3. c_ 4. d
Step-by-step explanation:
1 is b mainly because it is marked that way. Your picture doesn't show all of d so not really sure about it, but I used the process of elimination. Picture c is side angle side b/c of the vertical angles.
Ali, Basti and Cian stand at three points A, B and C respectively. Suppose that the measure of angle ABC is 50 degrees , the measure of angle BAC is 60 degrees and Ali is exactly 150 ft away from Basti. Find the distance between Basti and Cian.
To find the distance between Basti and Cian, we can use the law of sines in triangle ABC. The law of sines states that the ratio of the length of a side to the sine of the opposite angle is constant for all sides and their corresponding angles in a triangle.
Let's label the distance between Basti and Cian as "x". We know that the measure of angle ABC is 50 degrees and the measure of angle BAC is 60 degrees. We also know that Ali is exactly 150 ft away from Basti.
Using the law of sines, we can set up the following equation:
sin(50°) / 150 = sin(60°) / x
To solve for "x", we can rearrange the equation:
x = (150 * sin(60°)) / sin(50°)
Using a calculator, we can evaluate the expression:
x ≈ (150 * 0.866) / 0.766
x ≈ 168.4 ft
Therefore, the distance between Basti and Cian is approximately 168.4 ft.
Conduct the hypothesis test and provide the test statistic and the critical value, and state the conclusion. A person drilled a hole in a die and filled it with a lead weight, then proceeded to roll it 200 times. Here are the observed frequencies for the outcomes of 1, 2, 3, 4, 5, and 6, respectively: 29, 31, 49, 37, 26, 28. Use a 0.025 significance level to test the claim that the outcomes are not equally likely. Does it appear that the loaded die behaves differently than a fair die?
The loaded die appears to behave differently from a fair die.Based on the chi-square test, the loaded die does not exhibit equal probabilities for each outcome.
To test the claim that the outcomes of the loaded die are not equally likely, we can use the chi-square goodness-of-fit test. The null hypothesis (H₀) assumes that the outcomes are equally likely, while the alternative hypothesis (H₁) assumes that they are not equally likely.
Step 1: Set up hypotheses
H₀: The outcomes of the die are equally likely.
H₁: The outcomes of the die are not equally likely.
Step 2: Select the significance level
The significance level is given as 0.025, which means we have a two-tailed test and an alpha level of 0.025 for each tail.
Step 3: Compute the test statistic
We calculate the chi-square test statistic using the observed frequencies and the expected frequencies assuming equal probabilities for each outcome.
Expected frequencies (fair die):
1: 200/6 = 33.33
2: 200/6 = 33.33
3: 200/6 = 33.33
4: 200/6 = 33.33
5: 200/6 = 33.33
6: 200/6 = 33.33
Applying the chi-square formula, we get the test statistic:
χ² = ∑((observed - expected)² / expected)
Calculating this value, we get χ² ≈ 13.97.
Step 4: Determine the critical value
Since the significance level is 0.025 and the test is two-tailed, we divide the significance level by 2 to find the critical value associated with each tail. With 5 degrees of freedom (6 categories - 1), the critical value is approximately 11.07.
Step 5: Make a decision
The test statistic (13.97) is greater than the critical value (11.07), which leads us to reject the null hypothesis. Thus, we have evidence to suggest that the outcomes of the loaded die are not equally likely.
The loaded die appears to behave differently from a fair die.
In conclusion, based on the chi-square test, the loaded die does not exhibit equal probabilities for each outcome.
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The product of −3 negative 3and a number is greater than 12. A number multiplied by 4 is at most −44.negative 44 A number divided by −9 negative 9is less than 10. The quotient of a number and 5 is at least −8.negative 8 The product of 2 and a number is less than −10
Answer:
hbgrvfgbhnybrstefv
Step-by-step explanation:
2. Write each of the following in algebraic notation:
: 2.1 Three times the difference between k and the square of p
The expression in algebraic notation is 3 * (k - p²)
Writing the expressions in algebraic notationFrom the question, we have the following parameters that can be used in our computation:
Three times the difference between k and the square of p
Three times means 3*
So, we have
3 * the difference between k and the square of p
the difference between k and the square of p means
k - p²
So, we have
3 * (k - p²)
So, we can conclude that
The expression"Three times the difference between k and the square of p" in algebraic notation is 3 * (k - p²)
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What describes how the lengths in an actual object are related to the
lengths on a drawn representation of It?
Congruence
Similarity
Side length
Scale
A human hair was measured to be 8.0•10-4 inch thick. A cat hair is measured to be 4.0•10^-1. How much greater is the thickness of the cat hair than the human hair? Writ this in standard form.
Whoever gets this right I will mark brainiest and 60 points!!
Answer:
500 times
Step-by-step explanation:
Divide the thickness of a cat hair by the thickness of a human hair.
4.0 × 10^-1 / 8.0 × 10^-4 =
= 0.5 × 10^3
= 500
500 times
uhh jus look at the picture
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 65% salt and Solution B is 90% salt. She wants to obtain 150 ounces of a mixture that is 80% salt. How many ounces of each solution should she use?
The amount of solution A and B required are 60 and 90 ounces respectively.
Creating simultaneous equations for the problem:
Mass of solution A = a
Mass of solution B = b
a + b = 150 _____(1)
0.65a + 0.90b = 150×0.80
0.65a + 0.90b = 120 __(2)
From (1)
a = 150-b ____(3)
substitute (3) into (2)
0.65(150-b) + 0.90b = 120
97.5 - 0.65b + 0.90b = 120
0.25b = 120-97.5
0.25b = 22.5
b = 22.5/0.25
b = 90
a = 150 - b
a = 150 - 90
a = 60
Therefore , 60 ounces of solution A and 90 ounces of solution B is required.
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Please please help
What is the answerrrr
I neeed help
40 POINTS!! Douglas is placing strings of lights around the edge of a circular patio with a diameter of 7.5 meters. The lights are in lengths of 1.45 meters. What is the best approximation for how many strings of lights Douglas needs? Use 3.14 to approximate for π.
5 strings
11 strings
17 strings
122 strings
Answer:
17
Step-by-step explanation:
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