Answer:
\(\bold{0.0065}\)
Step-by-step explanation:
Hi there!
Let's convert numbers in scientific notation to standard form.
\(\bold{6.5x10^{-3} }\) => scientific notation
First, the coefficient is \(\bold{6.5}\).
So, we know part of our number.
Now, let's look at the exponent:
\(\bold{-3}\)
First of all, the exponent is \(\bold{NEGATIVE}\).
This means that we'll move the decimal point to the \(\bold{left}\).
Then, the 3 means we'll move the decimal point 3 units.
So, our number looks like so:
\(\bold{0.0065}\)
Hope it helps! Enjoy your day!
~Just a teen willing to help others
\(\bold{Besties4Ever:-):-):-)}\)
In the figure, a∥b and m∠3 = 34°.
What is the m∠7?
Enter your answer in the box. |__|
Therefore, In the figure, a∥b angle m∠7 = 34° .
What is angle ?An angle is a figure in Euclidean geometry made up of two rays that share a vertex, or common terminus, and are referred to as the sides of the angle. Angles of two rays lie in the plane containing the rays. Angles can also result from the intersection of two planes. Dihedral angles are the name given to them.
Here,
Given that a and b are parallel lines,
∠3 and ∠7 are corresponding angles and congruent
m∠3 = 34°
thus ,m∠7 =m∠3 = 34°
so, m∠7 = 34°
Therefore, In the figure, a∥b m∠7 = 34° .
To know more about angle , visit
https://brainly.com/question/28451077
#SPJ1
A. Compute the integrating factor for the given differential equation.
B. Solve the differential equation by hand using the integrating factor. You may use software to compute integrals if you need to.
C. Use technology to find the solution to the DE and compare it with the one you found by hand.
D. Use technology to draw the slope field for the DE. Draw the solution on the slope field.
1. y+3y=2;y(0)=4
2. y+y=,y(0)=1
3. y+y=cos()
The solution to the differential equation is y = ∫cos(x)e^xdx / e^x.
A. To compute the integrating factor for a given differential equation, we use the following steps:
1. Write the given differential equation in the form of y' + P(x)y = Q(x).
2. Identify the coefficient of y as P(x) and the right-hand side of the equation as Q(x).
3. Compute the integrating factor (IF) using the formula IF = e^(∫P(x)dx).
B. To solve the differential equation by hand using the integrating factor, follow these steps:
1. Compute the integrating factor (IF) using the formula IF = e^(∫P(x)dx) from step A.
2. Multiply both sides of the differential equation by the integrating factor.
3. Simplify and rearrange the equation to get it in the form of (IF * y)' = IF * Q(x).
4. Integrate both sides of the equation to solve for y.
C. To use technology to find the solution to the differential equation and compare it with the solution found by hand, follow these steps:
1. Use software or a calculator with an integral function to compute the integrating factor and solve the differential equation.
2. Compare the solution obtained using technology with the one found by hand to check for consistency and accuracy.
D. To draw the slope field for the differential equation and plot the solution on it using technology, follow these steps:
1. Use software or an online tool capable of drawing slope fields to graphically represent the differential equation.
2. Plot the solution obtained in step C on the slope field to visualize how it fits with the slope vectors.
Now let's apply these steps to the given differential equations:
1. For the equation y + 3y = 2 with initial condition
y(0) = 4:
A. The coefficient of y is 1, so P(x) = 1 and
Q(x) = 2.
The integrating factor is IF = e^(∫P(x)dx)
= e^(∫1dx)
= e^x.
B. Multiply both sides of the equation by e^x:
e^xy + 3e^xy = 2e^x.
Simplify and rearrange: (e^x * y)' = 2e^x.
Integrate both sides: e^x * y = 2e^x + C.
Solve for y: y = 2 + Ce^(-x).
Using the initial condition y(0) = 4, we find
C = 2.
Conclusion: The solution to the differential equation is y = 2 + 2e^(-x).
2. For the equation y + y = ?
with initial condition y(0) = 1:
A. The coefficient of y is 1, so P(x) = 1 and
Q(x) = ?.
The integrating factor is IF = e^(∫P(x)dx)
= e^(∫1dx)
= e^x.
B. Multiply both sides of the equation by e^x: e^xy + e^xy = ?e^x.
Simplify and rearrange: (e^x * y)' = ?e^x.
Integrate both sides: e^x * y = ?e^x + C.
Solve for y: y = ? + Ce^(-x).
Using the initial condition y(0) = 1,
we find C = 1 - ?.
Conclusion: The solution to the differential equation is y = ? + (1 - ?)e^(-x).
3. For the equation y + y = cos(x):
A. The coefficient of y is 1, so P(x) = 1 and
Q(x) = cos(x).
The integrating factor is IF = e^(∫P(x)dx)
= e^(∫1dx)
= e^x.
B. Multiply both sides of the equation by e^x: e^xy + e^xy = cos(x)e^x.
Simplify and rearrange: (e^x * y)' = cos(x)e^x.
Integrate both sides: e^x * y = ∫cos(x)e^xdx.
Solve for y: y = ∫cos(x)e^xdx / e^x.
Use technology or a table of integrals to evaluate the integral.
Conclusion: The solution to the differential equation is y = ∫cos(x)e^xdx / e^x.
To know more about solution visit
https://brainly.com/question/1616939
#SPJ11
What value represents the number of ways in which the expected classes are free to vary in the chi-square goodness-of-fit test?Degrees of Freedom.
Answer The formula df = (c – 1) (r – 1) is used to find the degree of freedom – The degree of freedom of the chi-square test is calculated by the formula df = (c – 1) (r – 1), where c represents the column number of cell and r represents the row number of the cell.
Joquan's brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold 9900 worth of shoes. How much was his commission
Answer:
His commission was $247.50
Step-by-step explanation:
Percentage
Joquan's brother earns a 2.5% commission on the amount he sells.
Last week, he sold $9,900 worth of shoes, thus his commission will be calculated as follows:
2.5% of $9,900 = 2.5 *$9,900 / 100 = $247.50
His commission was $247.50
PLEASE HELP ME!
Question in image. Thank you
The correct options for the given polynomial are:
NEG/EVENas x goes to ∞, f(x) goes to -∞as x goes to -∞, f(x) goes to -∞How to identify the end behavior of the polynomial?To analyze the end behavior of a polynomial we need to look at the degree and the sign of the leading coefficient.
Remember that the degree is the largest exponent of the polynomial.
Here we can see that the degree is 12, so it is even.
And the leading coefficient (the coefficient in the term with the largest exponent) is -10, so it is negative.
Then the first correct option is:
NEG/EVEN
That means that in both ends the polynomial tends to negative infinity, so:
as x goes to ∞, f(x) goes to -∞as x goes to -∞, f(x) goes to -∞Learn more about end behavior at:
https://brainly.com/question/1365136
#SPJ1
PLEASE HELP 30 POINTS...PLEASE HELP PLEASE
Answer:
u haven't attached anything
but if u need any help ask the question again or put it in the comments
ur welcome
Answer:
free points
Step-by-step explanation:
Divide f(x) by d(x). Your answer
should be in the following format:
R(x)
(x) = Q(x) + d(x)
x³-1
f(x)
d(x) X+2
R(x) = [?]
Only enter the R(x) term.
=
4
The polynomial division of f(x) = x⁸ - 1 by d(x) = x + 2, then remainder is -1/(x + 2).
What is the Polynomial Division?
A polynomial is divided by another polynomial in an arithmetic operation called division, usually with a lower degree than the dividend. A polynomial may or may not be produced when two polynomials are divided.
To perform the polynomial division of f(x) = x⁸ - 1 by d(x) = x + 2, we can use the standard long division algorithm. Here are the steps:
x + 2 | x⁸ + 0x⁷ + 0x⁶ + 0x⁵ + 0x⁴ + 0x³ + 0x² + 0x - 1
- x⁸ - 2x⁷
------------
2x⁷ + 0x⁶ + 0x⁵ + 0x⁴ + 0x³ + 0x² + 0x
2x⁷ + 4x⁶
----------
- 4x⁶ + 0x⁵ + 0x⁴ + 0x³ + 0x² + 0x
- 4x⁶ - 8x⁵
------------
8x⁵ + 0x⁴ + 0x³ + 0x² + 0x
8x⁵ + 16x⁴
------------
-16x⁴ + 0x³ + 0x² + 0x
-16x⁴ - 32x³
--------------
32x³ + 0x² + 0x
32x³ + 64x²
--------------
-64x² + 0x
-64x² - 128x
------------
128x - 1
Therefore, we have:
(f(x))/(d(x)) = Q(x) + (R(x))/(d(x)) = x⁷ - 2x⁶ + 4x⁵ - 8x⁴ + 16x³ - 32x² + 64x - 128 + (-1)/(x + 2)
Hence, the polynomial division of f(x) = x⁸ - 1 by d(x) = x + 2, then remainder is -1/(x + 2).
To learn more about the polynomial division visit:
https://brainly.com/question/12520197
#SPJ1
If you were constructing a 99% confidence interval of the population mean based on a sample of n=30 where the standard deviation of the sample S=0.05, the critical value of t will be 2.7564 2.4922 2.7969
The critical value of t for constructing a 99% confidence interval with a sample size of 30 and a sample standard deviation of 0.05 is 2.7564.
A confidence interval is a range of values within which the population parameter is estimated to lie with a certain level of confidence. In this case, we are constructing a 99% confidence interval for the population mean. The critical value of t is used to determine the width of the confidence interval.
The formula for calculating the confidence interval for the population mean is:
Confidence interval = sample mean ± (critical value) * (standard deviation of the sample / square root of the sample size)
Given that the sample size is 30 (n = 30) and the standard deviation of the sample is 0.05 (S = 0.05), we need to find the critical value of t for a 99% confidence level. The critical value of t depends on the desired confidence level and the degrees of freedom, which is equal to n - 1 in this case (30 - 1 = 29). Looking up the critical value in a t-table or using statistical software, we find that the critical value of t for a 99% confidence level with 29 degrees of freedom is approximately 2.7564.
Therefore, the 99% confidence interval for the population mean would be calculated as follows: sample mean ± (2.7564) * (0.05 / √30). The final result would be a range of values within which we can be 99% confident that the true population mean lies.
To learn more about interval click here: brainly.com/question/29126055
#SPJ11
hellp plese what is it
Answer:
17
Step-by-step explanation:
\(2\times 3^2-1\)
We can solve this by follow PEMDAS order of operations:-
1) Exponents
\(2\times \:9-1\)
2) Multiplication
\(18-1\)
3) Subtraction
\(17\)
~
Hope this helps!
Which are vertical angels?
Answer:
Those angles are in opposite either in vertical or horizontal. They are opposite angles
Which equation represents a line that passes through (2,-1) and has a slope of 3?
O y-2 = 3(x + 1)
O y-3 = 2(x + 1)
Oy+ = 3(x - 2)
Oy+ 1 = 2(x - 3)
Answer:
Third one : y + 1 = 3(x - 2)
Step-by-step explanation:
The standard form is y - y1 = m(x - x1)
PLEASE HELP!!!
Find the areas of the trapezoids.
Answer:
1) A = 48 sq units 2) 42 sq units
Step-by-step explanation:
The formula to find the area of a trapezoid of a trapezoid is A = 1/2(b1+b2)h.
So for number 1, it is stated that the height of each unit is 2. Now let's substitute the variables in the formula with the actual bases and heights. I got A = 1/2(8+4)8, A=6*8, A=48 sq units.
For number 2, each unit also has a height of 2. Let's substitute the variables in the formula again. And we get A = 1/2(10+4)6, A = 7*6, A = 42 sq units.
This is how you find the areas of the trapezoids!
How did Mandela get the name “Nelson?”
Answer:
On the first day of school his teacher, Miss Mdingane, gave each of the students an English name. This was the custom among Africans in those days and was undoubtedly due to the British bias of education. That day, Miss Mdingane told him that his new name was Nelson.
Whats the Simplify form of (x^2/y)3
Answer:
\(\frac{3x^2}{y}\)
If F is the function defined by F(x)=3x−1, find the solution set for F(x)=2.
A. {13}
B. {8}
C. {5}
D. {1}
Answer:
D. {1}
Step-by-step explanation:
F(x)=3x−1
Let F(x) =2
2 = 3x-1
Add 1 to each side
2+1 = 3x-1+1
3 =3x
Divide by 3
3/3 = 3x/3
1 =x
if x=5, y=-3, and z=-7 z=-7, evaluate 3x^2-9y/yz
a family has five kids. what is the probability that they are three males and two females?
The probability of a family having three males and two females can be calculated using the concept of binomial probability.
In a family with five kids, each child has a 50% chance of being male or female. The probability of having three males and two females can be calculated by considering the different ways this combination can occur.
There are a total of 10 possible outcomes when arranging three males and two females in a sequence of five children (i.e., 5C3, where 5C3 represents the binomial coefficient "5 choose 3").
The probability of having three males and two females is given by the number of favorable outcomes divided by the total number of possible outcomes, which is 10/32 or 0.3125. Therefore, the probability of a family having three males and two females is approximately 31.25%.
Learn more about Probability click here :brainly.com/question/32004014
#SPJ11
-17.9 as a mixed number.
Answer:
-17 9/10
Step-by-step explanation:
I WILL MAKE YOU BRAINLIEST FOR THE FIRST ONE TO SOLVE THIS FOR ME!!!
Which number is larger, A or B? Write more than a sentence to explain your reasoning.
(A) 9.675 x 10^24
(B) 1.109 x 10^28
Answer:
the answer is B
Step-by-step explanation:
when you take the first answer and subtract the second answer from it you get a negitive number of -1.1080325x10+28
2a.
Solve the quadratic equation with completing the square method 5x2 - 4x + 125 = 0
Answer:
There is No real solutions.
Step-by-step explanation:
What is the range of the following list of ordered pairs?
(-3,-1), (0, -2), (4,3), (1,5)
Answer:
The range is 8.
Step-by-step explanation:
5-(-3)=8
please answer!!
20 Brainly points
Answer:
Step-by-step explanation:I believe it’s A sorry if I’m wrong.
Please answer the questions and number them correspondingly. (Click all the screenshots and try to get all answers done please & thank you in advance.) The ones that need to be done are the questions with red boxes around them
Based on the given angles, the missing answers of the sequences uploaded screenshots are:
The vertex is ∠R; the sides are QR and RS; the angles name are ∠QRS, ∠R, and ∠SRQ; the angle is classified as right angleSupplementary VerticalSupplementaryx = 35°z = 37°∠H = 129°∠2 = 128°∠J = 17°Adjacent supplementaryVerical Adjacentx = 107°x = 38°Corresponding angles and congruentAlternate interior angles and congruentConsecutive interior angles and supplementaryAlternate exterior angles and congruentThe following answers are constructed based on the sequences of each problems not as the sequences of the uploaded screenshots.
Example 2Name of the vertex of the angle is ∠RThe sides of the angle are QR and RSThe three ways to name the angle is ∠QRS, ∠R, and ∠SRQThe angle is classified as a right angle (90°)Classifying Angles:3. Since ∠1 + ∠2 = 180°; then both are supplementary angles
4. Both ∠1 and ∠2 have equal size of angle and share no adjacent side; then both are vertical angles
5. 116° + 64° = 180°; then both are supplementary angle
8. Angles ∠3 and ∠4 are adjacent supplementary because it shares an adjacent side and its sum is 180°.
10. Angles ∠3 and ∠5 are vertical since they share no adjacent side but have equals size of angle.
12. Angles ∠1 and ∠5 are adjacent but neither complementary or supplementary because it sums are not 90° either 180°.
Finding Angle Measures:13. x and 107° are vertical angles; then:
x = 107°
15. x and 142° are supplementary angles; then:
x + 142° = 180°
x = 38°
17. ∠RST = 112°
∠RST = x + 87° = 112°
x = 35°
19. It is given that:
x and 127° are supplementary anglesx and y are vertical angles z and y are complementary angles; then:x + 127 = 180°
x = 53°
x = y = 53°
y + z = 90°
53° + z = 90°
z = 37°
Word Problems21. ∠G + ∠H = 180°
51° + ∠H = 180°
∠H = 129°
22. ∠1 = ∠2
∠2 = 128°
23. ∠J + ∠K = 90°
∠J + 73° = 90°
∠J = 17°
Practice Classifying:2. Corresponding angles and congruent
4. Alternate interior angles and congruent
6. Consecutive interior angles and supplementary
8. Alternate exterior angles and congruent
Learn more about Angles here: brainly.com/question/13954458
#SPJ1
carla believed that her teammates on the track team were faster than she was, so she began putting in extra practices in order to become just as fast as them. this is an example of . a. compensation b. rationalization c. regression d. displacement please select the best answer from the choices provided a b c d
Carla's behavior of putting in extra practices to become faster can be seen as an example of (Option A.) compensation. This is because she is trying to make up for her perceived lack of speed by working harder to become as fast as her teammates.
Carla began putting in extra practices in order to become just as fast as them. This is an example of: Option A. CompensationCarla's behavior of putting in extra practices to become faster can be seen as an example of compensation. This is because she is trying to make up for her perceived lack of speed by working harder to become as fast as her teammates.
By engaging in extra practices, Carla is attempting to compensate for her lack of speed and improve her performance. This is different from rationalization, which is the act of making excuses for one's behavior, or from regression, which is the act of reverting to a younger age in response to a stressful situation.
Finally, displacement is the act of redirecting one's emotions or anger onto another person or object.
Learn more about Compensation: https://brainly.com/question/13978016
#SPJ4
A piece of blue yarn is 7 7 8 yards long. A piece of pink yarn is 6 times as long as the blue yarn. How much longer is the pink yarn than the blue yarn?
Answer:
4668
Step-by-step explanation:
you would just multiply 778 by 6
778*6=4668
3.195 rounded to the nearest hundredth
A rock sample containing an isotope with a half-life of 28 million years has an initial mass of 184 grams. how much time has elapsed after three half-lives?
The half life period is the time in which only half of the given population remains. It can be represented through this equation:
\(f(t)=a\times(1/2)^{\frac{t}{h}}\)
t = time passeda = y-intercepth = half lifeSolving the QuestionWe're given:
h = 28 million yearsa = 184 grams (this is the initial mass, after 0 time has passed)For most questions like this, we would have to plug these values into the equation mentioned above. However, this question asks for the time elapsed after 3 half-lives.
This can be calculated simply by multiplying the given half-life by 3:
28 million years x 3
= 84 million years
Answer84 million years
A current flows at 5 mph. A boat can travel 20 mi downstream in the same amount of time it can go 12 mi upstream. What is the speed of the boat in still water?
If a current flows at 5 mph. A boat can travel 20 mi downstream in the same amount of time it can go 12 mi upstream. The speed of the boat in still water is 20mph.
How to find the speed?Boat speed x mph
Current speed 5 mph
Against current x - 5 mph
With current x + 5 mph
Distance against current 12
Distance with current 20
Time = same equate the time against with time with current
t=d/r
12 /(x- 5)= 20 /(x+ 5)
12 ×(x+ 5 )= 20 ×(x- 5 )
12 x + 60= 20 x -100
12 x -20 x = -100 + -60
-8x = -160
x = -160/-8
x= 20 mph
Therefore the speed of the boat in still water is 20mph.
Learn more about speed here:https://brainly.com/question/13943409
#SPJ1
Find the length of RT R(12,7) T(6.-2)
Divide (6y2 + lly + 3) by (3y + 1).
A. 2y2 + 1
B. 2y2 + 3
C. 2y + 3
D. 2y + 1
Answer:
ether:
y= 1/3 = 0.333
OR
y= 3/2 = 1.500