Answer:
(4 square root 2, 315°), (-4 square root 2, 135°)
Step-by-step explanation:
A survey has a margin of error of 4%. In the survey, 67 of the 110 people interviewed said they would vote for candidate A. If there are 9570 people in the district, what is the range of the number of people who will vote for candidate A?
Create a factorable polynomial with a GCF of 2y. Rewrite that polynomial in two other equivalent forms. Explain how each form was created.
how do you solve f + 15 = 35
So what we do to one side of the equal sign, we must do to the other side as well.
We want to solve for f, so we need to subtract 15 on both sides of the equal sign in order to get f alone by itself on the left side:
[tex] f=20 [/tex]
So now we know that f = 20.
f + 15 = 35
Isolate the variable (f). Note the equal sign. What you do to one side, you do to the other.
Subtract 15 from both sides
f + 15 (-15) = 35 (-15)
f = 35 - 15
Simplify
f = 20
f = 20 is your answer
hope this helps
Evaluate this exponential expression. (0.125)2/3
Who do you work out 5 Quarts.= ? Cups and 48cups = ? Gallons
For the quarts to cups:
First, you need to figure out how many cups are in 1 quart. This is 4 cups = 1 quart.
If you have 4 cups in one quart then you need to multiply 4 cups by 5 quarts which equals 20 cups.
For the cups to gallons, you first need to find out how many cups are in 1 gallon. This is 16 cups = 1 gallon.
If you have 16 cups in 1 gallon then you will need to multiply 48 cups by 16 to find out how many gallons you will have which equals 3 gallons.
Hope this helps.
What is the simplified form of the expression? (2x^6)(3x^(1/2)
Answer:
[tex](6x^\frac{13}{2})[/tex]
Step-by-step explanation:
[tex](2x^6)(3x^\frac{1}{2})[/tex]
Use property of exponents
a^m * a^n = a^mn
When the exponents with same base are in multiplication then we add the exponents
2 times 3= 6
now we multiply x^6 and x^1/2
[tex](x^6)(x^\frac{1}{2})=x^{6+\frac{1}{2}}[/tex]
Make the denominators same to add the fractions
[tex]\frac{12}{2} +\frac{1}{2} =\frac{13}{2}[/tex]
[tex](6x^\frac{13}{2})[/tex]
When adding or subtracting two decimals, what is the first thing you must do
Find the probability of flipping a coin and it showing heads and drawing a diamond from a standard deck of cards.
The probability of flipping a coin and it showing heads and drawing a diamond from a standard deck of cards is 1/8.
What is the probability?Probability determines the chances that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
The probability = (number of sides with a head / number of sides of a coin) x (number of diamonds / number of cards)
1/2 x 13/54 = 1/8
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Final answer:
The probability of flipping a coin and getting heads followed by drawing a diamond from a standard deck of cards is 1/8 or 0.125.
Explanation:
The probability question involves two independent events: flipping a coin and drawing a card from a standard deck. For the coin toss, the probability of getting heads is 0.5 since a coin has two sides and both are equally likely. Now, for drawing a diamond from a standard deck of cards, there are 13 diamonds out of 52 cards, so the probability is 13/52 or 1/4.
To find the probability of both events happening, we multiply the probabilities of each event, because they are independent events. So, the probability of flipping a coin and getting heads and then drawing a diamond is (1/2) * (1/4) = 1/8 or 0.125.
What is the length of the segment of the number line consisting of the points that satisfy (x-4)^2 <= 9$?
The length of the number line segment satisfying the inequality (x-4)² ≤ 9 is 6 units, found by solving the inequality to get the range 1 <= x <= 7 and subtracting the lower endpoint from the higher endpoint.
To find the length of the segment of the number line for the points that satisfy the inequality (x-4)² ≤ 9, we first solve the inequality. Taking square roots of both sides gives us |x-4| ≤ 3.
This means that the distance from x to 4 on the number line is less than or equal to 3. We can express this as two separate inequalities: x-4 ≤ 3 and x-4 ≥ -3. Solving these gives us x ≤ 7 and x ≥ 1, which represent the endpoints of the segment on the number line.
The length of this segment is the difference between the endpoints, which is 7 - 1 = 6. So, the length of the number line segment that contains all points satisfying the original inequality is 6 units.
If p is a prime, which one of the following could be a prime also?
F) 23p + 45
G) 23p + 46
H) 23p + 47
J) 23p + 48
K) 23p + 49
Final answer:
The expression that could potentially yield a prime number when p is substituted with a prime number is 23p + 46, since it results in an odd number.
Explanation:
To determine which of the options could also be a prime number, we need to check each expression by substituting a prime number for p. Since we are looking for a possible prime number, we can start by excluding options that will always result in an even number (which can't be prime unless the value is 2).
We know that any prime number p (other than 2) will be odd, and hence 23p will also be odd. Adding an odd number (45, 47, 49) to an odd number results in an even number, which cannot be prime other than 2. On the other hand, adding an even number (46 or 48) to an odd number results in an odd number.
The answer could be 23p + 46 or 23p + 48. However, 48 is divisible by 2, which would make 23p + 48 even (hence not prime for any p greater than 2). Therefore, the only potential expression that could yield a prime is 23p + 46, as long as p is chosen such that the result is not divisible by any other number.
how to solve for pie
Answer:
Use the formula.
The circumference of a circle is found with the formula C= π*d = 2*π*r. Thus pi equals a circle's circumference divided by its diameter. Plug your numbers into a calculator: the result should be roughly 3.14
Step-by-step explanation:
Rounded to the nearest some, What is the greatest amount of money that rounds to $105.40? What is the least amount of money that rounds to $105.40?
The greatest amount of money that rounds to $105.40 is $105.41, while the least amount that rounds to $105.40 is $105.39.
Explanation:The greatest amount of money that rounds to $105.40 would be the amount slightly greater than $105.40. Since rounding to the nearest cent, we would look at the hundredths place. Any amount greater than $105.405 would round up to $105.41. So the greatest amount of money that rounds to $105.40 would be $105.41.
The least amount of money that rounds to $105.40 would be the amount slightly less than $105.40. Again, looking at the hundredths place, any amount less than $105.395 would round down to $105.39. So the least amount of money that rounds to $105.40 would be $105.39.
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If you spend $9.74 in how many ways can you receive change for a ten-dollar bill
Final answer:
To determine the ways to receive change for a ten-dollar bill when you have spent $9.74, you need to consider the coin denominations that sum up to the remaining $0.26. This is a combinatorial problem known as the 'coin changing problem,' which involves calculating the combinations of coins that can be used to make up the remaining change.
Explanation:
To calculate how many ways you can receive change for a ten-dollar bill, you would need to consider the different denominations of U.S. currency and how they could combine to total the difference between your purchase amount of $9.74 and a $10 bill, which is $0.26.
The ways you can receive change can include a combination of quarters, dimes, nickels, and pennies.
To model this as a mathematical problem, let's calculate the different combinations: You could receive one quarter and one penny, or two dimes and six pennies, or one dime, one nickel, and eleven pennies, and so on.
Since the question asks for the number of ways to receive change and not the specific combinations, we can use combinatorics to determine the total number of combinations.
Note:
Since the actual calculations for combinatorics can be complex and the question does not provide all the necessary details to give a definitive number, we can consider this as an example of a combinatorial problem in mathematics.
The coin changing problem is a classic example that could be applied here, where algorithms can be used to find the number of ways to make change for a certain amount using given denominations.
randy made a business trip of 204 miles. he averaged 52 mph for the first part of the trip and 50 mph for the second part. if the trip took 4 hours, how long did he travel at each rate?
x+y = 4
x=4-y
52x+50y=204
52(4-y)+50y=204
208-52y+50y=204
208-2y=204
-2y=-4
y=2
x= 4-2=2
check 52*2=104
50*2 = 100
104+100=204
so he traveled 2 hours at both 50 and 52 mph
7(h+3)=6(h-3) pls help
How do you write 2.82 in words
You are given a rectangular sheet of cardboard that measures 11 in. by 8.5 in. (see the diagram below). A small square of the same size is cut from each corner, and each side folded up along the cuts to from a box with no lid. 1. Anya thinks the cut should be 1.5 inches to create the greatest volume, while Terrence thinks it should be 3 inches. Explain how both students can determine the formula for the volume of the box. Determine which student's suggestion would create the larger volume. Explain how there can be two different volumes when each student starts with the same size cardboard. 2. Why is the value of x limited to 0 in. < x < 4.25 in.?
We can solve for the value of x using the formula:
V = l w h
where,
h = x the size of the cut since it would form the walls of the rectangle
w = 8.5 – 2x = it is subtracted by 2x since two sides will be cut
l = 11 – 2x
Substituting:
V = x (8.5 − 2x) (11 − 2x)
Expanding the expression:
V = 93.5 x – 39 x^2 + 4 x^3
To solve the maxima, we have to get the 1st derivative dV / dx then equate to 0. dV / dx = 0:
dV / dx = 93.5 – 78 x + 12 x^2
0 = 93.5 – 78 x + 12 x^2
We get:
x ≈ 1.585 in and x ≈ 4.915 in
Therefore Anya’s suggestion of 1.5 inches would create the larger volume since it is nearer to 1.585 inches.
There can be different volumes since volume refers to the amount of space inside the rectangle. They can only have similar perimeter and surface area, but not volume.
It is restricted to 0 in. < x < 4.25 in. because our w is 8.5 – 2x. Going beyond that value will give negative dimensions.
find a8 of the sequence 10, 9.75, 9.5, 9.25
A girl wants to count the steps of a moving escalator which is going up. If she is going up on it, she counts 60 steps. If she is walking down, taking the same time per step, then she counts 90 steps. How many steps would she have to take in either direction, if the escalator were standing still?
What is the value of the expression -225 divided by -15
GIVING BRAINLIEST
-225 divided by -15 is equal to 15.
What is Division?A division is a process of splitting a specific amount into equal parts.
We have to find the value of the expression -225 divided by -15
By means of division we can find this value.
-225/(-15) = 15
Two hundred twenty five is the numerator and fifteen is the denominator.
We get 15
When we divide a negative number by a negative number, the result is a positive number.
Therefore, -225 divided by -15 is equal to 15.
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An average person in the United States throws away 4.5 × 10² g of trash per day. In 2013, there were about 3.2×106 people in the U.S.
About how many grams of trash was thrown away in the United States in 2013?
Simplify completely quantity x squared minus 10 x minus 24 all over x squared minus 3 x minus 108 and find the restrictions on the variable.
x+2/x+9 is the simplified form of x squared minus 10 x minus 24 all over x squared minus 3 x minus 108 and x≠-2 and x≠-9 are the restrictions of the variable.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given sentence is x squared minus 10 x minus 24 all over x squared minus 3 x minus 108
(x²-10x-24)/(x²-3x-108)
We will simplify the given expression by factorisation we will get
(x²-12x+2x-24)/x²-12x+9x-108
Taking x as common from first two terms in numerator and 2 from last two terms in numerator
Similarly, take x common from first two terms and 9 from last two terms in denominator we will get
x(x-12)+2(x-12)/x(x-12)+9(x-12)
(x+2)(x-12)/(x+9)(x-12)
After simplifying we are left with x+2/x+9
the restrictions on the variable is x should not be equal to -9 and it should not be -2
Hence, x+2/x+9 is the simplified form of x squared minus 10 x minus 24 all over x squared minus 3 x minus 108 and x≠-2 and x≠-9 are the restrictions of the variable.
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Please Help! Will Give A Brainliest!!
f (x)=4x^2+4x+8, g (x)=4x-7 find (g*f)(x)
Determine the 4th term in the geometric sequence whose first term is -2 and whose common ratio is -5
250.
To determine the 4th term in a geometric sequence, start with the first term and use the common ratio. In this case, the first term is -2 and the common ratio is -5. The formula for finding the nth term of a geometric sequence is an = a1 * r(n-1).
Identify the values: a1 = -2, r = -5, n = 4.
Substitute into the formula: a4 = -2 * (-5)(4-1).
Calculate the 4th term: a4 = -2 * (-5)3 = -2 * (-125) = 250.
Complete the steps in order to write the inverse of f(x) = x + 5
To find the inverse of a function, replace f(x) with y, swap x and y, then solve for y. Thus, the inverse of f(x) = x + 5 is f^-1(x) = x - 5.
Explanation:To find the inverse of a function like f(x) = x + 5, we use the following steps:
Replace the function notation f(x) with y. So, we get y = x + 5.
Swap the roles of x and y. This changes the equation to x = y + 5.
Solve for y to get the inverse function. By subtracting 5 from both sides, we acquire y = x - 5.
This implies that the inverse of the function f(x) = x + 5 is f-1(x) = x - 5.
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Rationalize the denominator of square root of negative 9 over open parentheses 4 minus 7 i close parentheses minus open parentheses 6 minus 6 i close parentheses.
Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x2 – 4 into the quadratic formula?
What is the constant term in the expression 4x3y + 8x2 + 6x + 5? (Input a numeric value only.)
Answer:
Answer is 5.
Step-by-step explanation:
The given expression is :
[tex]4x^{3}y+8x^{2} +6x+5[/tex]
We have to tell the constant term here.
A constant term is one that remains same and does not change with change in values of x and y.
Here, other terms contains either x or y or both, that will change with change in x and y. Only 5 is the single term that will remain constant.
So, the answer is 5.
The following information is obtained from two independent samples selected from two normally distributed populations.
n1 = 18 x1 = 7.82 σ1 = 2.35
n2 =15 x2 =5.99 σ2 =3.17
A. What is the point estimate of μ1 − μ2? Round to two decimal places.
B. Construct a 99% confidence interval for μ1 − μ2. Find the margin of error for this estimate.
Round to two decimal places.
A. The point estimate of μ1 − μ2 is calculated using the value of x1 - x2, therefore:
μ1 − μ2 = x1 – x2 = 7.82 – 5.99
μ1 − μ2 = 1.83
B. The formula for confidence interval is given as:
Confidence interval = (x1 –x2) ± z σ
where z is a value taken from the standard distribution tables at 99% confidence interval, z = 2.58
and σ is calculated using the formula:
σ = sqrt [(σ1^2 / n1) + (σ2^2 / n2)]
σ = sqrt [(2.35^2 / 18) + (3.17^2 / 15)]
σ = 0.988297
Going back to the confidence interval:
Confidence interval = 1.83 ± (2.58) (0.988297)
Confidence interval = 1.83 ± 2.55
Confidence interval = -0.72, 4.38