Answer:
first one is 10m+8(12)
second one is 206
Step-by-step explanation:
i took it alrr..
After you prove that two triangles are congruent, what would CPCTC be useful for?
Answer with explanation:
When we prove two triangles are congruent, either by following four congruent Axioms
1. S AS
2. SSS
3. A AS
4. A SA
Then C P CT C stands for Corresponding part of Congruent Triangles.
So, C P C TC is useful for proving , those corresponding parts of triangle that is side and Angles equal which are not used while proving Congruency of two triangles.
A students received a score of 50 on his history test. The test had a mean of 69 and a standard deviation of 10. Find the z score and assess whether his score is considered unusual.
there are 60 treats. he is allowed 2 treats a day. how many treats will he have left after 10 days?
A market research firm conducts telephone surveys with a 44% historical response rate. what is the probability that in a new sample of 400 telephone numbers, at least 150 individuals will cooperate and respond to the questions? in other words, what is the probability that the sample proportion will be at least 150/400 = .375? calculate the probability to 4 decimals.
To calculate the probability that at least 150 individuals will cooperate and respond to the questions in a new sample of 400 telephone numbers with a historical response rate of 44%, we use the binomial distribution formula.
Explanation:To calculate the probability that at least 150 individuals will cooperate and respond to the questions, we need to use the binomial distribution formula. The formula is:
P(X ≥ k) = 1 - P(X
Where n is the sample size, k is the desired number of successes, p is the historical response rate, q = 1 - p is the failure rate.
In this case, n = 400, k = 150, p = 0.44, q = 1 - 0.44 = 0.56. Plugging these values into the formula, we get:
P(X ≥ 150) = 1 - P(X<150)
We can use a software or calculator to evaluate this expression. The probability is approximately 0.9328 to 4 decimal places.
What is the converse of the statement given? "If a triangle is equilateral, then it is isosceles." Question 1 options: A triangle is equilateral if and only if it is isosceles. A triangle is not isosceles then if it is not equilateral. If a triangle is isosceles, then it is equilateral. All equilateral triangles are isosceles.
If ∠A and ∠B are supplementary angles and m∠A = 3m∠B, find m∠A and m∠B.
To find the measures of angles ∠A and ∠B, we can use the fact that they are supplementary angles and the given relationship between their measures. By solving a system of equations, we can determine that m∠A is 135 and m∠B is 45.
Explanation:To find the measures of the angles ∠A and ∠B, we need to use the fact that they are supplementary angles and the relationship between their measures. Let's start by understanding what supplementary angles are.
Supplementary angles are two angles that add up to 180 degrees. In this case, ∠A and ∠B are supplementary, so we can write the equation:
m∠A + m∠B = 180
We are also given that the measure of ∠A is three times the measure of ∠B, so we can write another equation:
m∠A = 3m∠B
Now we can substitute m∠A in the first equation with 3m∠B:
3m∠B + m∠B = 180
Combining like terms, we get:
4m∠B = 180
Finally, we can solve for m∠B by dividing both sides of the equation by 4:
m∠B = 45
Since m∠A is three times m∠B, we can find m∠A by multiplying 45 by 3:
m∠A = 135
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solve using break apart strategy 132+42=
Catherine walks her dog 3/4 mile everyday. how far does she walk each day?
Help please!! :// don't understand!!!
Addison earn $25 Mowing her neighbors lawn. Then she loaned her friend $18, and got $50 from her grandmother for her birthday she now has $86. how much money did Addison have to begin with?
Find the average value of f over region
d. f(x, y) = 7xy, d is the triangle with vertices (0, 0), (1, 0), and (1, 8).
To find the average value of the function f(x, y) = 7xy over the triangular region defined by vertices (0, 0), (1, 0), and (1, 8), compute the area of the triangle and then calculate the double integral of the function over the region, divided by the area. The bounds for the double integral will be defined by the region.
Explanation:To find the average value of f over the given triangular region, we first need to find the area of the region. The given region is a triangle with vertices (0, 0), (1, 0), and (1, 8). This triangle has a base of 1 (the difference in x coordinates) and a height of 8 (the difference in y coordinates), so its area is (1/2)*base*height=(1/2)*1*8=4.
Next, we integrate the function f(x, y) = 7xy over the triangular region, and divide by the area of the region, to find the average value. Setting up and computing the double integral will provide the total value of the function over the region. The bounds for the double integral will be defined by the region, so we will integrate x from 0 to 1 and y from 0 to 8. The average value is then given by the total value divided by the area, or (1/4)*double integral of f(x, y) dy dx.
Without performing the actual calculation, this is the best process to solve the problem as presented.
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For a normal population with a mean of m = 80 and a standard deviation of s = 10, what is the probability of obtaining a sample mean greater than m = 75 for a sample of n = 25 scores? p = 0.0062 p = 0.9938 p = 0.3085 p = 0.6915
The calculated z-score is -2.5, and the corresponding probability is 0.9938, meaning there is a 99.38% chance of drawing a sample with a mean greater than 75.
To find the probability of obtaining a sample mean greater than m = 75 for a sample of n = 25 scores when the population mean is m = 80 and the standard deviation is s = 10, we will use the concept of sampling distributions and the Central Limit Theorem.
First, we need to calculate the standard error of the mean (SEM), which is the standard deviation of the sampling distribution of the sample mean.
The SEM is calculated using the formula [tex]SEM = s / \sqrt{n[/tex] where s is the population standard deviation and n is the sample size.
Here, SEM = [tex]10 / \sqrt{25[/tex]
= 10 / 5
= 2.
Next, we convert the sample mean to a z-score to find out how many standard errors the sample mean is from the population mean.
The z-score is calculated using the formula z = (M - m) / SEM, with M being the sample mean and m the population mean.
Therefore, z = (75 - 80) / 2 = -5 / 2 = -2.5.
Looking at the standard normal distribution table or using statistical software, we find that the probability associated with a z-score of -2.5 is approximately 0.9938. This means that the probability of obtaining a sample mean greater than 75 is 0.9938.
I need help with simplifying this question
43+a-2a
Thank you!!!!
The correct answer is 43-a. In other words, the result of simplifying algebraic expressions 43 + a - 2a is 43 - a.
To simplify the expression 43 + a - 2a, you can combine like terms.
The expression consists of three terms: 43, a, and -2a.
Starting with the numbers, 43 is a constant term and does not contain any variables. Since there are no other terms with numbers, 43 remains unchanged.
Next, let's simplify the terms with variables. We have a and -2a. To combine these terms, we can group them together as a single term.
The term with a is positive a, and the term with -2a is negative 2a. When we combine them, we subtract 2a from a. This gives us a - 2a, or -a.
Therefore, the simplified expression is 43 - a.
Therefore, the correct answer is 43-a. In other words, the result of simplifying algebraic expressions 43 + a - 2a is 43 - a.
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Solve the inequality T > L plus D all divided by B for D. (2 points)
Select one:
a. T + B − L > D
b. TB − L > D
c. T divided by B − L > D
d. T times B divided by L > D
Emma is scrapbooking she has 9 inches of paper and needs to cut it into 2/5 inch strips of paper how many strips will she be able to make
Answer:
22 strips.
Step-by-step explanation:
In order to solve this you just have to divide the total inches of paper that she actually has by the size of the strips that she´s going to make:
[tex]9 inches/2/5\\\frac{ 9inches}{\frac{2}{5} } \\\frac{45}{2}\\22\frac{1}{2}[/tex]
So as you can see she can make a total of 22 strips and a half, but the half won´t be useful so she can make 22 strips.
Order the fractions from least to greatest.
1/3, 2/7, 3/14, 1/6
Bailey writes the expression g2 + 14g + 40 to represent the area of a planned school garden in square feet. If g = 5, what are the dimensions of the school garden? 20 feet by 2 feet 10 feet by 4 feet 12 feet by 7 feet 15 feet by 9 feet
g^2 14g+40
replace g with 5
5^2 +14(5) +40 = 25 + 70 +40 = 135 square feet
Area =L x W
using your choices multiply 15 x 9 = 135
so answer is 15 feet by 9 feet
Initially, a store has 35 train sets. The store sells 3 train sets each month.
What is the explicit rule for the number of train sets the store has after ‘n’ months?
The explicit rule for the remaining train sets after 'n' months is represented by the formula T(n) = 35 - 3n, where T(n) is the total number of train sets, and 'n' is the number of months.
Explanation:The explicit rule for the number of train sets a store has after ‘n’ months, given that the store starts with 35 train sets and sells 3 each month, can be represented by a linear equation. The initial amount of train sets is the starting point, and the number of sets sold each month is the rate of change.
The explicit rule for the number of train sets the store has after 'n' months can be represented by the linear function:
\[ T(n) = 35 - 3n \]
Here, \( T(n) \) represents the number of train sets after 'n' months, 35 is the initial number of train sets, and 3n represents the number of train sets sold each month. The negative coefficient (-3) indicates the decrease in the number of train sets each month. By plugging in different values for 'n', you can determine the number of train sets the store will have at any given month.
This is reflected in the equation:
T(n) = 35 - 3n
where T(n) represents the total number of train sets after n months, and n is the number of months that have passed.
A swimming pool is circular with a 30-ft diameter. the depth is constant along east-west lines and increases linearly from 1 ft at the south end to 6 ft at the north end. find the volume of water in the pool. (round your answer to the nearest whole number.
Factor the expression using the GCF. 2+8
The expression '2+8' simplifies to 10. Factoring using the Greatest Common Factor (GCF) is commonly used with expressions that contain variables.
Explanation:The expression you're looking to factor, 2+8, does not really involve any complex mathematical concepts, and there's no variable to enable factoring in its usual way. However, we can simplify it by adding the numbers. So, 2+8 equals to 10. Factoring using the greatest common factor(GCF) is most often used when you're handling expressions that involve variables, for instance, 2x + 8x. In this case, the GCF would be 2x, and the expression would factor to 2x(1 + 4).
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If one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true? if one of the purple-flowered progeny plants is selected at random and self-fertilized, what is the probability it will breed true? 2/3 3/4 1/4 1/3
Which of the following is irrational?
A.7.51... * (-4)
B.sqrt of 16 + 3/4
C. sqrt of 3 + 8.486
D. 8 2/3 x 17.75
Answer:
c
Step-by-step explanation:
Option (C) √3 + 8.486 is an irrational number.
What is an irrational number?An irrational number is a type of real number which cannot be represented as a simple fraction. It cannot be expressed in the form of a ratio. Those real numbers that are not rational numbers are known as irrational numbers.
For the given situation,
We need to check the options, that is irrational.
Option A: 7.51... x -4
⇒ 7.51 (-4)
We can express this as fraction. So it is not an irrational number.
Option B: root 16 + 3/4
⇒ √16 + 3/4
⇒ 4 + 3/4
We can express this as fraction. So it is not an irrational number.
Option C: root 3 + 8.486
⇒ √3 + 8.486
⇒ √3 is an irrational number, so the sum is also an irrational number.
Option D: 8 2/3 × 17.75
⇒ 8 2/3 × 17.75
We can express this as fraction. So it is not an irrational number.
Hence, we can conclude that option (C) √3 + 8.486 an irrational number.
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i need to know what t is but i don't understand how to get it
9 1/ 2 gal of gas into his car. Convert this amount to a decimal.
Evaluate -(4/5) over 8/15
Of the 50 tables in a restaurant, 40% seat 2 people. The remaining tables seat 4 people. How many seats are there in the restaurant?
Answer: 160 seats
Step-by-step explanation: Got it right on TTM
what is 2 equivalent ratios for 5/11
How do i write 0.624 in expanded form?
How can I find the exact distance between the points(√7,-√2)and (4√7,5√2)
What value of z divides the standard normal distribution so that half the area is on one side and half is on the other? round your answer to two decimal places?
The value of [tex]z[/tex] which divides the standard normal distribution so that half the area is on one side and half is on the other is [tex]0.00[/tex].
A normal distribution with a mean of [tex]0[/tex] and a standard deviation of [tex]1[/tex] is known as a standard normal distribution.
The typical normal distribution is divided into two equal halves with 50% on each side when the [tex]z[/tex] value is [tex]0.00[/tex].
Hence, the value of [tex]z[/tex] which divides the standard normal distribution so that half the area is on one side and half is on the other is [tex]0.00[/tex].
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