To trisect a(n) ____ angle, you first construct an equilateral triangle.
A) acute
B) right
C) obtuse
D) 120- degree
Answer:
Option B - right angle
Step-by-step explanation:
We have Given statement : To trisect a(n) ____ angle, you first construct an equilateral triangle.
Solution: Option B is correct because, a right angle is 90 degrees and an equilateral triangle has a 60 degree corner.
So, if you construct the equilateral you have one 60 and one 30, now bisect the 60.
"Suppose X ~ N(2, 3).
What value of x has a z-score of −0.74? (Enter an exact number as an integer, fraction, or decimal.)"
Thanks so much for any and all help. I have no idea what I'm doing. :P
The value of x with a z-score of -0.74 is -0.22.
Explanation:To find the value of x that has a z-score of -0.74, we can use the formula:
x = mean + (z-score * standard deviation)
Given that the mean (mean) is 2 and the standard deviation (standard deviation) is 3, we can substitute these values into the formula:
x = 2 + (-0.74 * 3)
Simplifying the equation, we get:
x = 2 - 2.22
x = -0.22
Therefore, the value of x that has a z-score of -0.74 is -0.22.
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A. use the zero product
Ennifer owes $185 to a credit card company. She makes a $12 purchase with the card and then pays $70 on the account. what us her current balance
Is 120% equal to less than or greater than 1
HELP!!!! Which system of Linear inequalities is graphed?
x < -3 and y < -x -2
x < -2 and y ≤ -x +2
x < -2 and y ≤ -x -2
x ≤ -2 and y ≤ x -3
x < -2 and y ≤ -x -2
What is the factored form of n2 – 25?
Answer: The factorized form of [tex]n^2-25[/tex] will be
[tex](n-5)(n+5)[/tex]
Explanation:
Since we have given that
[tex]n^2-25[/tex]
Now, we need to factorize the expression,
We know the formula for "difference of squares" which is given by
[tex]a^2-b^2=(a+b)(a-b)[/tex]
Using the formula, we get
[tex]n^2-25=n^2-5^2=(n-5)(n+5)[/tex]
Hence, the factorized form of [tex]n^2-25[/tex] will be
[tex](n-5)(n+5)[/tex]
The sum of the ages of Kristen and Ben is 32. Four years ago Kristen was twice as old as Ben. How old are they both now?
Let us say that:
K = age of Kristen
B = age of Ben
From the problem, we make the equations:
eqtn 1: K + B = 32
eqtn 2: (K – 4) = 2 (B – 4)
Simplifying eqtn 2:
K – 4 = 2 B – 8
K = 2 B – 4
Plugging in this to eqtn 2:
(2 B – 4) + B = 32
3 B – 4 = 32
3 B = 36
B = 12
From eqtn 2:
K = 2 B – 4 = 2 (12) – 4 = 20
So Kristen is 20 while Ben is 12.
Final answer:
By translating the given information into a system of equations and solving them step-by-step, we found that Kristen is 20 years old and Ben is 12 years old.
Explanation:
The question asks us to solve a system of equations based on the ages of Kristen and Ben. The total sum of their ages is 32, and four years ago, Kristen's age was twice that of Ben. Let's denote Kristen's age as K and Ben's age as B. The given information can be translated into two equations:
K + B = 32
K - 4 = 2(B - 4)
To solve these equations, first simplify the second equation:
K - 4 = 2B - 8
K = 2B - 4
Now substitute the value of K from the second equation into the first equation:
2B - 4 + B = 32
3B = 36
B = 12
Now that we know Ben's age (12), we can find Kristen's age by substituting the value of B into any of the initial equations. Using K + B = 32:
K + 12 = 32
K = 20
Therefore, Kristen is 20 years old and Ben is 12 years old.
The time t (in minutes) for a small plane to climb to an altitude of h feet is given by t = 50 log10 (18000/(18000-h)) where 18000 feet is the plane's absolute ceiling. a. Determine the domain of the function appropriate for the context of the problem. b. Graph the function and identify any asymptotes. c. As the plane approaches its absolute ceiling, what can be said about the time required to further increase its altitude. d. Find the amount of time it will take for the plane to climb to an altitude of 4000 feet.
The domain of the function is restricted to the altitude of the plane, and the plane cannot exceed its absolute ceiling. The graph of the function will have a vertical asymptote at the absolute ceiling. As the plane approaches its absolute ceiling, the time required to further increase its altitude increases significantly. To find the time it will take for the plane to climb to a specific altitude, substitute the altitude into the equation and solve for time.
Explanation:a. The domain of the function is determined by the restrictions given in the problem. In this case, the domain represents the altitude of the plane. Since the plane's absolute ceiling is 18,000 feet, the altitude cannot exceed 18,000 feet. Therefore, the domain is 0 ≤ h ≤ 18,000.
b. To graph the function, we can plot points by substituting different values of h into the function and calculating the corresponding values of t. This will result in a smooth curve. Asymptotes occur when the function approaches certain values of h or t. In this case, the function has a vertical asymptote at h = 18,000, because the plane cannot climb beyond its absolute ceiling.
c. As the plane approaches its absolute ceiling of 18,000 feet, the time required to further increase its altitude increases significantly. This is because the logarithmic function in the equation has a slower growth rate as h approaches its limit.
d. To find the time it will take for the plane to climb to an altitude of 4000 feet, we can substitute h = 4000 into the equation t = 50 log10 (18000/(18000-h)) and solve for t.
What is the distance between points (-23. 17) and (-3, -4)
Write 17/4 as a mixed number. explain your work.
The 17/4 as a mixed number can be written as 4 1/4.
How to convert from decimal to fraction?For conversion from decimal to fraction, we write it in the form a/b such that the result of the fraction comes as the given decimal. Usually, to get the decimal of the form a.bcd, we count how many digits are there after the decimal point (if its finite), then we write 10 raised to that many power as denominator, and the considered number without any decimal point as numerator.
In order to make 17/4 as a mixed number, we would have to do 17 divided by 4.
17/ 4 = 4.25
Then just put that decimal into a fraction.
That would be 4.25 = 4 1/4
Therefore, the 17/4 as a mixed number can be written as 4 1/4.
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Simplify open parentheses x to the 2 ninths power close parentheses to the 3 eighths power
Simplify i12
-1
-i
i
1
Answer:
[tex]i^{12}=1[/tex]
Last option is correct.
Step-by-step explanation:
We have to simplify the expression [tex]i^{12}[/tex]
We can rewrite this expression using the properties [tex](a^m)^n=a^{mn}[/tex]
[tex](i^4)^{3}[/tex]
Now, we know that [tex]i^4=1[/tex]
Hence, we have
[tex](1)^{3}[/tex]
On simplifying, we get
[tex]1[/tex]
Thus, the simplified form is 1.
Last option is correct.
Answer:
it's 1
Step-by-step explanation:
the diagonals of a parallelogram are congruent and are perpendicular bisectors of each other. the parallelogram is which type of quadrilaterals?
A. square
B. rectangle
C. trapezoid
D. kite
y/6-3=-11
What does y equal?
Describe which of the two points lies on the graph of the line
2x+2y=6
A,-4,5
B,6-3
In what way is a debit card similar to a check? a You must always provide a signature to use either.
b Both always take a few days to clear, so there is some float time until the payment goes through.
c Both pull money directly from a checking or savings account.
d Both charge interest on the purchases you make with them.
The growth in population of a city can be seen using the formula p(t) = 9768e0.003t, where t is the number of years. according to this formula, in how many years will the population reach 14,652? round to the nearest tenth of a year.
The number of years will the population reach 14,652 will be 500 years.
What is an exponent?Let a be the initial value and x be the power of the exponent function and b be the increasing factor.
The exponent is given as
y = a(b)ˣ
The growth in the population of a city can be seen using the formula given below.
[tex]\rm P(t) = 9768 \times e^{0.003 \times t}[/tex]
Where t is the number of years.
The number of years will the population reach 14,652 will be given as,
[tex]\rm 14652 = 9768 \times e^{0.003 \times t}\\\\e^{0.003 \times t} = 1.5[/tex]
Take natural log on both sides, then we have
0.003 × t = 1.5
t = 1.5 / 0.003
t = 500 years
The number of years will the population reach 14,652 will be 500 years.
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the sum of two numbers it 226. their differences is 200. what are the numbers?
To find the two numbers with the sum of 226 and a difference of 200, set up two equations, add them to find one number, and then substitute it into one of the equations to find the other. The two numbers are 213 and 13.
The sum of two numbers is 226, and their difference is 200. To find the two numbers, we can set up two equations based on the given information:
Equation 1: x + y = 226Equation 2: x - y = 200Add both equations to eliminate y:
(x + y) + (x - y) = 226 + 2002x = 426x = 213Substitute x in one of the equations to find y:
x - y = 200213 - y = 200y = 213 - 200y = 13The two numbers are 213 and 13.
9(x + 3) = 108 what does 9x equal and i need major help on how to do this in genral
Which relationship between sample size and sampling error is correct?
Clarence solved the equation 3x + 15 = 33 and showed the following work. Did he do the work correctly? 3x + 15 = 33 3x + 15 - 15 = 33 3x = 33 = x = 11 Which of the following is true? x is 11. x should be 6. x should be 16. x should be 99.
3333% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.
a. at r = 2
P = [10! / (10 – 2)! 2!] * 0.33^2 * 0.67^(10 – 2)
P = 0.1989 ~ 0.20 (answer)
b. We deduct the values of P when r = 0, r = 1, r = 2 from 1 to get all values when r > 2
at r = 0
P = [10! / (10 – 0)! 0!] * 0.33^0 * 0.67^(10 – 0)
P = 0.0182
at r = 1
P = [10! / (10 – 1)! 1!] * 0.33^1 * 0.67^(10 – 1)
P = 0.0898
so for r > 2, the probability is:
P = 1 – (0.1989 + 0.0182 + 0.0898)
P = 0.6931 (answer)
c. at r = 3
P = [10! / (10 – 3)! 3!] * 0.33^3 * 0.67^(10 – 3)
P = 0.2614
at r = 4
P = [10! / (10 – 4)! 4!] * 0.33^4 * 0.67^(10 – 4)
P = 0.2253
at r = 5
P = [10! / (10 – 5)! 5!] * 0.33^5 * 0.67^(10 – 5)
P = 0.1332
So when r is between 2 and 5 inclusive, the probability is:
P = 0.1989+ 0.2614 + 0.2253 + 0.1332
P = 0.8188 (answer)
Solve the system of equations.
y =+6x12
y =+x47
What is the greatest perfect square that is a factor of 980?
Answer:
The greatest perfect square that is a factor of 980 is 196.
Step-by-step explanation:
To find : What is the greatest perfect square that is a factor of 980?
Solution :
First we factor the number 980.
[tex]980=2\times 2 \times 5\times 7\times 7[/tex]
[tex]980=2^2\times 7^2\times 5[/tex]
[tex]980=(2\times 7)^2\times 5[/tex]
[tex]980=(14)^2\times 5[/tex]
[tex]980=196\times 5[/tex]
This clearly means that 196 is the required factor.
Therefore, The greatest perfect square that is a factor of 980 is 196.
We have that The Greatest perfect square of 980 is
x= 196
From the question we are told that
The greatest perfect square that is a factor of 980
Generally
Greatest perfect square
Where a perfect square is a number that is written to given the product of two identical Numbers
Therefore
Greatest perfect square of 980 is
x= 196
Where
The factors of 980 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
Therefore
The Greatest perfect square of 980 is
x= 196
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rewrite the equation in the form y= k/x
xy= -45
x= 15/y
2xy=9
what are the answers and how do i solve them?
find the inverse of the function and then determine whether the inverse is a function.
y=x^2+4
Melvin borrowed $1,200 for furniture. His monthly payments were $60 for 24 months. Find the total amount repaid.
A. $1,200
B. $240
C. $1,440
D. $2,880
The total amount repaid by Melvin for the specified case is given by: Option C. $1,440
For finding the total amount repaid, we need to find how repeated addition can be evaluated using multiplication.
How to interpret integral multiplication?Suppose that there are two positive integer numbers( numbers like 1,2,3,.. ) as a and b
Then, their multiplication can be interpreted as:
[tex]a \times b = a + a + ... + a \: \text{(b times)}\\\\a \times b = b + b +... + b \: \text{(a times)}[/tex]
For example,
[tex]5 \times 2 = 10 = 2 + 2 + 2 + 2 + 2 \: \text{(Added 2 five times)}\\or\\5 \times 2 = 10 = 5 + 5 \: \text{(Added 5 two times)}[/tex]
Since Melvin paid $60 for 24 months, so the amount he paid is $60 added 24 times, or:
Total amount paid by Melvin for furniture buying = 60 + 60 + ... + 60 (24 times) = [tex]24 \times 60 = 1440 \text{\: (in dollars)}[/tex]
Thus, the total amount repaid by Melvin for the specified case is given by: Option C. $1,440
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If a pair of shoes cost $40 and they are on sale for 30% off how much would they be
multiply 40 by 30% to find the discount then subtract
40 * 0.30 = 12
40-12 = 28
they would cost $28
Sarah's grade point average is 2.4. based on the frequency distribution of grouped scores in the table below, what is the percentile rank of sarah's grade point average?