The image of the triangle when rotated is F'(-2,-2), E(0, -3), D(-5,-5)
How to determine the image of the triangle when rotated?The vertices of the triangle are given as:
F(2,-2), E(3,0), D(5,-5)
The transformation rule is given as
90 degrees rotation
The rule of 90 degrees rotation is
(x,y) = (y , -x)
When the above rule is applied to the vertices of the triangle, we have:
F'(-2,-2), E(0, -3), D(-5,-5)
Hence, the image of the triangle when rotated is F'(-2,-2), E(0, -3), D(-5,-5)
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Please help. A rectangle's length and width are in a ratio of 7:3. The area is 84 square feet. What are the
length and width?
length =
feet
width =
feet
Answer:
length = 14 feet
width = 6 feet
Step-by-step explanation:
A = 84 feet square
ratio of length and width = 7 : 3
total ratio of length and width 10 = a
length = (7/10)a
width = (3/10)a
A = length x width = (7/10)a x (3/10)a = (21/100)a² = 84
a² = 84 x 100 : 21 = 400
a = 20 feet
length = 7/10 x 20 = 14 feet
width = 3/10 x 20 = 6 feet
Given that P(B) = 0.4 and P(AB) = 0.25, what must the P(A and B) = ?
0.100
0.160
0.410
1.000
Convert 506 minutes to hours and minutes.
Answer:
8 hours and 26 minutes
Step-by-step explanation:
To convert 506 minutes to hours and minutes, we can use the fact that there are 60 minutes in one hour.
First, we can divide 506 by 60 to find the number of hours:
506 ÷ 60 = 8 with a remainder of 26
This means that 506 minutes is equal to 8 hours and 26 minutes.
Therefore, the conversion of 506 minutes to hours and minutes is:
8 hours and 26 minutes
50 Points! Multiple choice algebra question. One factor of x^3+4x^2-11x-30=0 is x+2. Find the remaining factors. Photo attached. Thank you!
The solution to the above algebra question is (b) x-3, x+5.
What is the explanation for the above response?To find the remaining factors of the polynomial x^3+4x^2-11x-30=0, we can use polynomial long division or synthetic division. However, since we are given that x+2 is a factor of the polynomial, we can use synthetic division to simplify the process.
We set up the synthetic division table as follows, using -2 as the divisor:
-2 | 1 4 -11 -30
|____-2__-4___30
| 1 2 -15 0
The bottom row of the table represents the coefficients of the quadratic polynomial obtained by dividing x^3+4x^2-11x-30 by x+2. The last term of the quadratic is 0, which indicates that x+2 is a factor of the polynomial. The remaining quadratic polynomial can be factored as:
x^2 + 2x - 15 = (x - 3)(x + 5)
Therefore, the remaining factors of the polynomial x^3+4x^2-11x-30=0 are x+2, x-3, and x+5.
The correct answer is (b) x-3, x+5.
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Wei wants to prove that the segment joining midpoints of two sides of a
triangle is parallel to the third side.
Select the appropriate rephrased statement for Wei's proof.
Now we know PR∥QX , according to construction with transversal line TX.
∠PTS=∠QXS (Alternate angle)
In △PTS and △QSX
∠PTS=∠QXS (Alternate angle)
∠PST=∠QSX(vertically opposite angles)
PS=SQ(S is mid point of PQ)
△PTS≅△QSX(AAS rule)
So, TP=QX(CPCT)
As we know, TP=TR (T is midpoint)
Hence, TR=QX
Now, in quadrilateral TSQR
TS∥QR
Hence proved.
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600000+21345???????
Answer:
621,345
Step-by-step explanation:
Easy Here you goo
Rewrite the expression with
parentheses to equal the
given value.
3x 8-5 + 3
value: 12
PLEASE HELP!!!!!!! WILL GIVE BRAINLIEST
Answer:
16 inches
Step-by-step explanation:
What we know:
The equation y = 3/4x shows the diameter of a trees in x inches gained in y years.
We know y, which is 12, so this becomes x = 4/3y (or x = 4y/3)
x = 4(12)/3
x = 48/3
x = 16
The predicted diameter will be 16 inches.
(Just put 16 in the blank.)
Use the slope formula to determine the slope of the line containing the two points. Type your answer as an integer or reduced fraction in improper form if necessary.
Answer:
The slope is:
\( \binom{1}{2} \)
In slope-intercept form the equation is:
\(y = \binom{1}{2} x - 3\)
8. What is the value of x in the diagram?
A
E
429
B
49
D
32°C
Answer:
D. \(10^{\circ}\)
Step-by-step explanation:
Let the measure of minor arc \(AE\) be \(\alpha\) and the measure of minor arc \(BD\) be \(\beta\).
Using the secant-secant theorem, \(\frac{\alpha-\beta}{2}=32 \implies \alpha-\beta=64^{\circ}\).
By the inscribed angle theorem, \(\alpha=84^{\circ}\).
Thus, \(\beta=20^{\circ}\).
By the inscribed angle theorem, \(x=10^{\circ}\).
What is 12 X 1 1/2? Can someone explain with step by step?
Answer:
6
Step-by-step explanation:
\(12 \times 1 \frac{1}{2} \)
\(12 \times \frac{1}{2} \)
\( = 6\)
Emily collected a sample of geodes and measured their masses. Her sample is Normally distributed with a mean of 0.8 kilograms and standard deviation of 0.04 kilograms.
Complete the statements based on the Normal distribution.
About
__% of Emily’s geodes have a mass between 0.76 and 0.88 kilograms.
Answer:
81.5%
Step-by-step explanation:
Answer:
81.5% is right
ED2021
Finding the absolute maximum and minimum of a function given the graph
Explanation
An absolute maximum point is a point where the function obtains its greatest possible value.
Similarly, an absolute minimum point is a point where the function obtains its least possible value.
Step 1
check the graph of g:
The y- coordinates (output) at the highest and lowest points are called the absolute maximum and absolute minimum
To locate absolute maxima and minima from a graph, we need to observe the graph to determine where the graph attains it highest and lowest points on the domain of the function
so, for G
\(\begin{gathered} \text{maximum}=\text{ None ( the graph continues raising up)} \\ \text{minimum}=-3 \end{gathered}\)Step 2
Now, for h
\(\begin{gathered} \text{ Minimum; -5} \\ \text{ ma}\xi mum\colon5 \end{gathered}\)I hope this helps you
Suppose that the annual interest rates on mortgages in the U.S. are normally distributed with an unknown mean and standard deviation. The rates of 22 randomly sampled mortgages (home loans) are used to estimate the mean of the population. What t-score should be used to find the 98% confidence interval for the population mean?
Answer:
The value is \(t_{\frac{\alpha }{2} , 21 } = 2.518\)
Step-by-step explanation:
From the question we are told that
The sample size is n = 22
Generally the degree of freedom is mathematically represented as
\(df = n- 1\)
=> \(df = 22- 1\)
=> \(df = 21\)
From the question we are told the confidence level is 98% , hence the level of significance is
\(\alpha = (100 - 98 ) \%\)
=> \(\alpha = 0.02\)
Generally from the t distribution table the critical value of \(\frac{\alpha }{2}\) at a degree of freedom of \(df = 21\) is
\(t_{\frac{\alpha }{2} , 21 } = 2.518\)
I NEED HELP BY TMRW WILL GIVE THE BRAINLIEST TITLE
The mid points of the four sides of square ABCD are joined to form square WXYZ as shown. The area of square WXYZ is 16. The area of triangle YCX is….
F. 4
G. 2
H. 1.5
J. 1
K. None of these
The area of triangle YCX is given as follows:
G. 2 units squared.
How to obtain the area of the triangle?The area of square WXYZ is 16, hence the side length is given as follows:
s² = 16
s = 4.
Considering the midpoints, we have that the sides of the right triangle are given as follows:
YC = CX = 4/2 = 2
Hence the area of the triangle is given as follows:
0.5 x 2 x 2 = 2 units squared.
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Usain Bolt ran 120 meters in 12 seconds. What was his unit rate?
HELPPPP
Answer:
10 m/s
Step-by-step explanation:
Unit stands for one so
120 meters in 12 seconds in 10 meters a sec
A police officer invested $5,000 in a treasury bond paying 4.75% interest compounded quarterly. After 25 years, the value of the bond will be $16,280.08. If the police officer's investment was compounded continuously instead of four times per year, what would be the difference in the account balances after 25 years?
Answer:
114.29
Step-by-step explanation:
Can you help on question 22?!
Answer:
I think it may be B (d-$5 )
Help with the following equation 8x²-6x-5=x
Answer:
\(8 {x}^{2} - 6x - 5 = x\)
\(8 {x}^{2} - 7x - 5 = 0\)
x = (7 + √((-7)^2 - 4(8)(-5)))/(2×8)
= (7 + √(49 + 160))/16
= (7 + √209)/16
= -.4661, 1.3411 (to 4 decimal places)
!
A washer and dryer cost a total of 928$. The cost of the washer is three times the cost of the dryer. Find the cost of each item.
Answer:
Cost of Washer = $696
Cost of Dryer = $232
Step-by-step explanation:
Start by making and equation, put a variable for the missing prices, let's say the cost of the dryer is 'x' and since the cost of the washer is three times, it will be '3x'.
Put the equation together, so we can add the x variables together.
3x + x = 4x
The total cost will be what the '4x' is equal to.
4x = 928
Going back to algebra, we solve the equation by dividing both sides by 4.
x = 232
Remember x is the variable we gave to the dryer, so now we must find the cost of the washer. In order to do this, we will have to multiply it by 3.
3x
3(232) = 696.
To check the answer, we can add them together to make sure we get the total cost.
696 + 232 = 928
completing the square.
Which of the following is equivalent to 0 equals 2 x squared plus 8 x minus 24 when completing the square?
The equivalent expression to 0 equals 2 x squared plus 8 x minus 24 when completing the square is x = 2 or x = -6
How to solve using completing the square method?0 = 2x² + 8x - 24
divide through by 2
x² + 4x - 12
x² + 4x = 12
x² + 4x + (4/2)² = 12 + (4/2)²
x² + 4x + 16/4 = 12 + 16/4
x² + 4x + 4 = 12 + 4
x² + 4x + 4 = 16
(x + 2)² = 16
Find the square root of both sides
(x + 2) = ±√16
x + 2 = ± 4
x + 2 = + 4 or x + 2 = -4
x = 4 - 2 or x = -4 - 2
x = 2 or x = -6
Therefore, x = 2 or x = -6 is equivalent to 0 = 2x² + 8x - 24 when solved using completing the square method.
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HELP!!!!
The train journey from Station A to Station B takes 3 hours. The train journey from Station B to Station C takes two and one-half hours. How many minutes are both train rides combined?
120 minutes
180 minutes
300 minutes
330 minutes
Answer:
330 Minutes
Step-by-step explanation:
A->B is 3 hours
1 hour=60 minutes
3 hours=180 minutes
B->C is 2 1/2 hours
2 hours=120 minutes
1/2 hour=30 minutes
180+120+30=330 minutes
Brett and Andy applied for the same credit card from the same bank. Brett was given a card with an APR of 12.6%. What was his monthly percentage rate? Andy was given a card with an APR of 16.2% what was his monthly percentage rate? if each of them had an average daily balance of $7,980, and had to pay a finance charge, how much more would. Andy pay than Brett?
Andy would pay $23.94 more in finance charges compared to Brett, given their respective APRs, average daily balances, and monthly percentage rates.
To calculate the monthly percentage rate (MPR) from the given annual percentage rate (APR), we divide the APR by 12.
For Brett:
APR = 12.6%
MPR = 12.6% / 12 = 1.05%
For Andy:
APR = 16.2%
MPR = 16.2% / 12 = 1.35%
Next, we can calculate the finance charge for each individual using the formula: finance charge = average daily balance * MPR.
For Brett:
Finance charge = $7,980 * 1.05% = $83.79
For Andy:
Finance charge = $7,980 * 1.35% = $107.73
To find the difference in the finance charges between Andy and Brett, we subtract Brett's finance charge from Andy's finance charge:
Difference = $107.73 - $83.79 = $23.94
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Simplify the following expression:
√-36+√-100+ 7
O A. 7+ 16i
OB. 7+√136i
O C. 16
C. 16 - 7i
O D. 23 + 0i
If jan can buy 12 copies of a certain book for $40 what is the unit rate cost per copy
Answer:
3.33 repeated
Step-by-step explanation:
Since we know that 12 copies are $40, we can set up an equation which would look like this.... 40/12=1/x in order to find the unknown, let's call that x, we have to divide both the 40 AND the 12 by 12, the reason we are diving by 12 and not 40 is because we need to identify the cost per copy.
So the overall answer would be 3.33 dollars/1 copy in other words $3.33 per one copy.
PLEASE HELP ME
What is the answer to this
Answer:
Step-by-step explanation:
7x6=42
Answer: 42
Step-by-step explanation:
In blank box - 7
6*7
=42
Help help help math math
The average age of a college is 21.8 years. The average age of students of college is 24.2 years and average age of lecturers of college is 20.6 years. Find the ratio of the number of students to that of lecturers?
Answer:
22,2
Step-by-step explanation:
average also known as mean
so you find it by adding all the numbers together and dividing them by how many there are
so 21,8 + 24,2 + 20.6 = 66,6 divided by 3 equals 22,2
A student graphed an ordered pair on a coordinate plane that was located on the y axis and was 5 units above the origin. Write the ordered pair that the student graphed with these characteristics.
Factor the expression x2 - 49.
A. 7(x² – 7)
B. 7.(2-7)
C. 2+7(2-7)
D. (x + 7)(x-7)