Answer:
I think is number 2 in the corner
5% of 20= ? i really need help with this, someone help.
Answer:
1
Step-by-step explanation:
Use the clues given.
We know that 5% is equal to 5/100 or .05. Using one of those numbers, we can find what the answer is.
Multiply by 20.
In this case, I will be using .05, just because it is the easiest. So, if we multiply .05 by 20, we will get 1.
Hope this helped,
Philip
Brainliest is always appreciated! <3
Consider this right triangle...
Omg pleaseeeee help me!! I have SBA Math Test on Friday and I forgot everything I learned last year from Geo. Help would be very very much appreciated!! WILL GIVE BRAINLIEST!! Thank you so muchhhhh <3
Answer:
33°
Step-by-step explanation:
have a nice day!! :)
A statistics class with 30 students has 10 males and 20 females. Suppose you choose 3 of the students in the class at random. Find the probability that all three are female
The probability that all three are female is 0.281
What is probability?Mathematical explanations of the likelihood that an event will occur or that a statement is true are referred to as probabilities. A number between 0 and 1 represents the likelihood of an event, with 0 generally denoting impossibility and 1 denoting certainty. How likely something is to occur is known as its probability. We can discuss the probabilities of various outcomes—how likely they are—when we aren't sure how a particular event will turn out. Statistics describes the examination of events subject to probability. The probability of anything occurring is known as probability. To determine probability, divide the total number of possible outcomes by the number of possible ways an event could occur.2030⋅1929⋅18282030⋅1929⋅1828 = 0.281
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Solve the equation for the indicated variable.
Answer:
Option A
Step-by-step explanation:
\(D=3ef^2\\\)
we need to make e the subject of the formula so here goes,
On the right side 3 is being multiplied by ef^2 so when it moves to the left side it will divide
\(\frac{D}{3}=ef^2\)
now f^2 is also being multiplied by e on the right side so when it moves to the left side it will divide
\(\frac{D}{3f^2}=e\\\\\)
Properties of equality can be used to justify steps in solving an equation.
Equation is 4x-1 =27. that means the correct answer is 27
The equals sign is used in mathematical formulas to show that two expressions are equal. In contrast to English, where an equation is defined as any well-formed formula that consists of two expressions joined by the equals sign, French defines an equation as containing one or more variables. The first stage in resolving a variable equation is determining the values of the variables that lead to equality.
Here, 4x-1 =27
We know that x=7
4x=27+1
4x= 28
Therefore x = 28÷4 = 7.
Hence, 4x-1 =27
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I NEED ASAP DUE TODAY!!!! WILL GIVE THE BRAINLEST
solution to
y=0.50x+1
and
y=0.25+5
Explain step by step plz
School starts at 8:35 am. It takes billy 32 minutes to get dressed, 13 minutes to eat breakfast, and 17 minutes to walk to school. At what time should billy get up to be right on time for school? : *
The time Billy should get up to be right on time for school is 6:52 am.
The formula to calculate the time Billy should get up to be right on time for school is as follows: Time Billy Should Get Up = School Start Time - (Time to Get Dressed + Time to Eat Breakfast + Time to Walk to School). In this case, the formula is: Time Billy Should Get Up = 8:35 am - (32 minutes + 13 minutes + 17 minutes). In order to solve this equation, first we must convert the minutes to hours. 32 minutes is equal to 0.53 hours and 13 minutes is equal to 0.22 hours. 17 minutes is equal to 0.28 hours. Thus, the formula is: Time Billy Should Get Up = 8:35 am - (0.53 hours + 0.22 hours + 0.28 hours). Now, we can solve for the time Billy should get up. 8:35 am minus 0.53 hours is 7:42 am. Then, 7:42 am minus 0.22 hours is 7:20 am. Finally, 7:20 am minus 0.28 hours is 6:52 am. Therefore, the time Billy should get up to be right on time for school is 6:52 am.
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CAN SOMEONE PLS HELP MEE
Two triangles are graphed in the xy-coordinate plane.
Which sequence of transformations will carry △QRS
onto △Q′R′S′?
A. a translation left 3 units and down 6 units
B. a translation left 3 units and up 6 units
C. a translation right 3 units and down 6 units
D. a translation right 3 units and up 6 units
Answer:
the answer should be, A. im pretty good at this kind of thing so It should be right but if not, sorry.
Step-by-step explanation:
Who wants to do frickin 8th grade Pythagorean theorem ixls? Ion feel like doing them-
an article bought for $125 was sold for $175 the profit as a percentage of the cost price was
Answer:
40%
Step-by-step explanation:
Step 1: 175-125-50
Step 2: 50/125=0.4=40%
Answer:
40% profit
Step by step explanation:
There is a profit of $50.
If you were to find the percentage, you would divide 50 by 125. This would give you 0.4
Angel corre en un maratón de 500m y lo hizo en 1,5 horas. ¿Cuál fue la velocidad de
Angel?
is the point (20, 24) on line L
Answer:
There are no pictures to explain what L is
Step-by-step explanation:
Tìm giá trị lớn nhất,nhỏ nhất của A = sqrt(x - 4) + sqrt(10 - x)
Pleaseee help me with my math show work please I need the work
I'm sorry the photo is on a side. I'm too lazy to text it on here lol
we want to know if there is convincing evidence of a positive linear relationship between speed (mph) and jump height (in) for students like these. what is the p-value of this test?
To find the p-value for the test examining the positive linear relationship between speed and jump height, you need to calculate the Pearson correlation coefficient, determine the degrees of freedom, and then find the corresponding p-value.
To determine the p-value for this test, we would need to conduct a hypothesis test using a linear regression model. The null hypothesis would be that there is no linear relationship between speed and jump height, while the alternative hypothesis would be that there is a positive linear relationship between the two variables.
After running the regression model and performing the hypothesis test, we would look for the p-value associated with the slope coefficient for speed. If this p-value is less than the chosen significance level (usually 0.05), we can conclude that there is convincing evidence of a positive linear relationship between speed and jump height for students like these.
Without actually running the regression model and hypothesis test, it is not possible to provide an exact p-value for this scenario.
To determine if there is convincing evidence of a positive linear relationship between speed (mph) and jump height (in) for students like these, you need to conduct a correlation test, specifically a Pearson correlation test. The p-value will help you determine the significance of the relationship.
Step-by-step explanation:
1. Gather the data: Obtain the values for speed (mph) and jump height (in) for each student.
2. Calculate the Pearson correlation coefficient (r): This value will help you measure the strength and direction of the linear relationship between the two variables. You can use statistical software or a calculator for this.
3. Determine the degrees of freedom (df): Calculate this by subtracting 2 from the total number of data points (n). Formula: df = n - 2.
4. Calculate the p-value: Using the Pearson correlation coefficient (r) and the degrees of freedom (df), you can find the p-value in a t-distribution table or by using statistical software.
5. Interpret the p-value: If the p-value is less than your chosen significance level (commonly 0.05), there is convincing evidence of a positive linear relationship between speed and jump height. If the p-value is greater than 0.05, there is not enough evidence to suggest a significant positive linear relationship.
In summary, to find the p-value for the test examining the positive linear relationship between speed and jump height, you need to calculate the Pearson correlation coefficient, determine the degrees of freedom, and then find the corresponding p-value. Comparing this p-value to your chosen significance level will help you conclude if there is convincing evidence of a positive linear relationship between the two variables.
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solving simple Quadratic Equations.
Answer:4 or -4
Step-by-step explanation:
Robbie owns 15 % more movies than Rebecca, and Rebecca owns 10 % more movies than Joshua. If Rebecca owns 220 movies, how many movies do Robbie and Joshua each have?
Step-by-step explanation:
Robbie=
15%/100%=220
=33 movies
Rebecca=
10%/100%=220
11 movies
Robbie have 33 movies and Joshua have 11 movies
Thank you
Hope it helps.
A pizzeria sold $800 worth of ice cream on Saturday, which was 6 times the amount sold on Friday. How much money did the pizzeria collect on Friday?
2. pvalue
3.critical value
4.test value
5.make a desision
Noise Levels in Hospitals In a hospital study, it was found that the standard deviation of the sound levels from 30 areas designated as "casualty doors" was 6.4 dBA and the standard deviation of 28 areas designated as operating theaters was 4.1 dBA. At a 0.10, can you substantiate the claim that there is a difference in the standard deviations? Use a, for the standard deviation of the sound levels from areas designated as "casualty doors." Part 1 of 5 (a) State the hypotheses and identify the claim. H_0: sigma_1^ = sigma_2^ _____
H_1: sigma_1^ ≠ sigma_2^ _____
This hypothesis test is a___test.
The hypotheses for the test are H₀: σ₁² = σ₂² and H₁: σ₁² ≠ σ₂². This is a two-tailed test to assess if there is a difference in the standard deviations of sound levels between the areas designated as "casualty doors" and operating theaters. The claim being investigated is whether or not there is a difference in the standard deviations.
The hypotheses for the test are:
H₀: σ₁² = σ₂² (There is no difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)
H₁: σ₁² ≠ σ₂² (There is a difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)
This hypothesis test is a two-tailed test because the alternative hypothesis is not specifying a direction of difference.
To substantiate the claim that there is a difference in the standard deviations, we will conduct a two-sample F-test at a significance level of 0.10, comparing the variances of the two groups.
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(0)
Question 2 Consider the dynamic system described by Equation Q2. 85.16400 083.3770 0046.999 ⃗+ 0.079400 00.7030 001.07 ×10⃗+ 0.013600 03.1390 005.124 ×10⃗= 0 0 0 Equation Q2 (a) Calculate the spectral matrix, the undamped natural frequencies and damping ratios of the system in Equation Q2. Identify its fundamental frequency. (b) The following mode shape vectors have been used to diagonalise the equations of motion of the dynamical system presented in Equation Q2: f1 = [0.8076 1.0000 0.8039]T; f2 = [-0.9694 -0.1620 1.0000]T and f3 = [-0.5342 1.0000 -0.3523]T. Calculate the respective matrix of mass normalised mode shapes. (c) Using the mode superposition method, calculate the response of the system for the first physical coordinate y1 assuming the following initial conditions expressed in terms of the modal coordinates: the initial modal displacements are [0 0.5 0]T m and the initial modal velocities are [0 -3 0]T m/s.
The first physical coordinate y1 can be expressed as y1 = [1 0 0]Y, & The mass-normalised mode shapes can be normalising the mode shape vectors f1, f2, and f3.
Part (a)
In Equation Q2, the spectral matrix, undamped natural frequencies, damping ratios, and fundamental frequency need to be calculated.
The mass matrix is given by [85.16400 083.3770 0046.999; 0.079400 00.7030 001.07 × 10; 0.013600 03.1390 005.124 × 10].
The stiffness matrix is given by [0.16400 00.3770 000.999; 0.079400 00.7030 001.07 × 10; 0.013600 03.1390 005.124 × 10].
The damping matrix is given by [0 0 0; 0 0 0; 0 0 0].The undamped natural frequencies, damping ratios, and fundamental frequency for the system in Equation Q2 can be calculated from the spectral matrix.
The characteristic equation can be written as det(K-mω^2M)=0.where K is the stiffness matrix, M is the mass matrix, ω is the angular frequency, and m is the mass-normalised mode shape.
The roots of this equation are the undamped natural frequencies, and the damping ratios can be calculated from the undamped natural frequencies and mode shapes.
The mass-normalised mode shapes can be calculated by normalising the mode shape vectors f1, f2, and f3.
Part (b)
The mass-normalised mode shapes can be calculated using the mode shape vectors f1, f2, and f3.Part (c)The response of the system for the first physical coordinate y1 can be calculated using the mode superposition method. The initial modal displacements and velocities are given in terms of the modal coordinates.
The response is then calculated using the equation y(t)= Σ ai φi(t), where ai are the modal amplitudes, and φi(t) are the modal shapes given by the mode shape vectors f1, f2, and f3.
The first physical coordinate y1 can be expressed as y1 = [1 0 0]Y, where Y is the vector of physical coordinates. The modal amplitudes can be calculated from the initial modal displacements and velocities.
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Finding Angle Measures When Parallel Lines Are Cut By a Transversal
Answer:
180° - 87° = 93° Supplementary angles with 287° Given87° Vertical angles with 293° Vertical angles with 193° Corresponding angles with 187° Alternate interior angles with 387° Vertical angles with 693° Vertical angles with 5
What is the area of this figure?
13 in
6 in
8 in
s in
5 in
17 in
10 in
Write your answers using decimals, If necessary.
Answer:
If i am correct the area should 337inches..........
Step-by-step explanation:
my reason is becuase if you multiply these numbers
13* 6 = 78 and 8 * 8 = 64 and 10 * 17 + 170 and last 5 * 5 = 25
they you add 170+ 78 + 64 + 25 = 337inches so means the answer is 337 Your Welcome :D
The function y=0.75x + 2 represents the cost y (in dollars) of an ice cream sundae with x toppings. A sundae comes with 1, 2, 3, or 4 toppings. Identify the independent and dependent variables, the domain, and the range.
Answer:
Please check answer for explanation
Step-by-step explanation:
The independent variable is x
The dependent variable is y
The domain is the range of values of x
That will be 1-4
Now let’s get the range, the range just represent the y-values of the terms in the domain
at x = 1
y = 0.75(1) + 2 = 2.75
at x = 4
y = 0.75(4) + 2 = 3 + 2 = 5
The range is 2.75 to 5
I need help with this and also the explanation plz
Answer:
The correct answer is 0 or A
Step-by-step explanation:
2/0+2 + 1/5 = 6/0+5
2/2 + 1/5 = 6/5
1 + 1/5 = 6/5
5/5 + 1/5 = 6/5
6/5 = 6/5
BRAINLIEST!! If the area of ABC is D, give the expressions that complete the equation for the measure of angle C
The measure of the m and n from the triangle are 2D and ab respectively
How to calculate the area of a triangle?A triangle is a 2-dimensional shape with 3 sides and angles. The area of the given angle is expressed as:
Area = 1/2 ab sin<C
Since the area is D, hence;
D = 1/2absinC
2D = absin C
sinC = 2D/ab
C = arcsin(2D/ab)
Compare
m = 2D
n = ab
Hence the measure of the m and n from the triangle are 2D and ab respectively
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10. Sora has some bags that each contain 12 potatoes. She
takes 3 potatoes from each bag.
The expression 12p - 3p represents the number of
potatoes p left in the bags.
Simplify the expression by combining like terms. Choose the
correct answer.
O 15p
0 13p
O 11p
O 9p
Answer:15p
Step-by-step explanation:
aa
Dave's gas tank holds 10 gallons. His car gets at most 25 miles per gallon. How far can he drive
On one tank of gas? Express you answer as an inequality.
Answer:
m ≤ 250
(where m is miles)
Step-by-step explanation:
He can go a maximum of 250 miles on a tank of gas (25 miles per gallon * 10 gallons), and this can be expressed as follows:
m ≤ 250
If the time is 9:20 am. What time will it be after three hours and fifty minutes?
Answer:
The time would be 1:10 pm.
Step-by-step explanation:
9:20 + 3 hours is 12:20.
50 minutes after 12:20 is 1:10.
Answer:
1:10
Step-by-step explanation:
Hey there
to solve this problem think 9:20 and 3:50 as ratios. In this problem we will add these too
9:20 + 3:50= 12:70
so, if it is 12:70. in one hour there is 60 and in the 12:70 it 70. so we add one more hour it will be 1:10
= 1:10
Triangle 1 has vertices at (J,K), (L,M), and (N,P).
Triangle 2 has vertices at (J,−K), (L,−M), and (N,−P).
What can you conclude about triangle 2?
Answer:
see explanation
Step-by-step explanation:
Under a reflection in the x- axis
a point (x, y ) → (x, - y )
This is true for the vertices from Triangle 1 → Triangle 2
Thus triangle 2 is the reflection in the x- axis of triangle 1
Number 5 please I’m having trouble
Answer:
B
Step-by-step explanation:
you would just divide 37 from 8659