Similar triangles
- i got 1.666 but in the answer sheet its wrong..please help
The scale factor applied to the first triangle is 3/5
How to determine the scale factorFrom the question, we have the following parameters that can be used in our computation:
The triangles
The scale factor is calclated as
scale factor = triangle B/triangle A
Substitute the known values in the above equation, so, we have the following representation
scale factor = 24/40
Evaluate
scale factor = 0.6 or 3/5
Hnce, the scale factor is 0.6
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how much money deposited now will provide payment of Rs. 15000 at the end of each half year for 10 years, if interest is 16% compounded six-monthly
The interest is 16% compounded semi-annually, is Rs. 121,179.10.
To determine how much money needs to be deposited now to provide a payment of Rs. 15,000 at the end of each half year for 10 years, we will use the formula for the present value of an annuity.
Present value of an annuity = (Payment amount x (1 - (1 + r)^-n))/rWhere:r = interest rate per compounding periodn = number of compounding periodsPayment amount = Rs. 15,000n = 10 x 2 = 20 (since there are 2 half years in a year and the payments are made for 10 years)
So, we have:r = 16%/2 = 8% (since the interest is compounded semi-annually)Payment amount = Rs. 15,000Using the above formula, we can calculate the present value of the annuity as follows:
Present value of annuity = (15000 x (1 - (1 + 0.08)^-20))/0.08 = Rs. 121,179.10Therefore, the amount that needs to be deposited now to provide payment of Rs. 15,000 at the end of each half year for 10 years, if the interest is 16% compounded semi-annually, is Rs. 121,179.10.
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(5x2-2x) + (6x- 4)
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Answer:
5x₂ + 4x - 4
Step-by-step explanation:
(5x₂ - 2x) + (6x - 4)
Combine -2x and 6x to get 4x.
5x₂ + 4x - 4
Answer:
5x^2+4x-4
Step-by-step explanation:
(5x^2-2x)+(6x-4)
terms: 5x^2,-2x,6x,-4
combine like terms
6x-2x=4x
Put it in order
5x^2+4x-4
Over-explained but h
ope this helps:)
Centerview Elementary holds a canned food drive each year. This year they collected 42 cans of food. Last year they collected 21 cans. About how many more cans of food did they collect this year?
Which graph represents the solution set of the system of inequalities?
The correct graph that represents the solution set of the system of inequalities is in Option(b).
What is Inequality in mathematics?Inequality is a statement of an order relationship (greater than, greater than, or equal to, less than, or less than or equal to) between two integers or algebraic expressions in mathematics.
The given system of inequalities are,
y < -3x - 2
y ≤ x - 2
We have to select the graph that represents the solution set of the system of inequalities.
y < -3x - 2
Let, y = -3x - 2
Now, plot the graph of the line y = -3x - 2 with a Dotted line ( as < is a strict inequality).
y ≤ x - 2
Let, y = x - 2
Now, plot the graph of the line y = x - 2 on the graph.
The area between the two lines of inequalities on the graph represent the solution set.
Upon comparison with the graphs in the options, the correct graph is present in Option(b).
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. How many ways can Mark create a 4-digit
code for his garage door opener?
Answer:
10,000
Step-by-step explanation:
There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code.
Number of ways(Outcomes) can Mark create a 4 - digit code for his garbage door opener are 10000.
What is probability?"Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. When dealing with probability, the outcomes of a process are the possible results."
For example, when a die is rolled, the possible outcomes are 1, 2, 3, 4, 5, and 6.
According to the question,
Mark want 4 digit code for his garage door opener
Possible outcome for 1st digit n(E1) = {0,1,2,3,4,5,6,7,8,9}
=10
Possible outcome for 2nd digit n(E2) = {0,1,2,3,4,5,6,7,8,9}
=10
Possible outcome for 3rd digit n(E3) = {0,1,2,3,4,5,6,7,8,9}
=10
Possible outcome for 4th digit n(E4) = {0,1,2,3,4,5,6,7,8,9}
=10
Total Possible outcome for 4 - digit code= 10×10×10×10 = 10000
∴ Number of ways(Outcomes) can Mark create a 4 - digit code for his garbage door opener are 10000.
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See attachment the problem can be found in there
Answer:
\( \frac{ - 2 {x}^{2} + 19x + 3 }{3 {x} (4x^{2} - 9 )} \)
Step-by-step explanation:
\( \frac{5}{6 {x}^{2} + 9x} + \frac{1}{2x - 3} - \frac{2}{3x} \\ \\ = \frac{5}{3x(2 {x} + 3)} + \frac{1}{2x - 3} - \frac{2}{3x} \\ \\ = \frac{5(2x - 3) + 1 \times 3x(2x + 3)}{3x(2 {x} + 3)(2x - 3)} - \frac{2}{3x} \\ \\ = \frac{10x - 15 + 6 {x}^{2} + 9x}{3x((2 {x} ) ^{2} - {3}^{2} )} - \frac{2}{3x} \\ \\ = \frac{6 {x}^{2} + 19x - 15}{3x(4x^{2} - 9 )} - \frac{2}{3x} \\ \\ = \frac{3x(6 {x}^{2} + 19x - 15) - 2 \times 3x(4x^{2} - 9 )}{3x(4x^{2} - 9 ) \times 3x} \\ \\ = \frac{18{x}^{3} + 57 {x}^{2} - 45x - 24x^{3} + 54x }{3x(4x^{2} - 9 ) \times 3x} \\ \\ = \frac{ - 6 {x}^{3} + 57 {x}^{2} + 9x }{9 {x}^{2} (4x^{2} - 9 )} \\ \\ = \frac{ 3x(- 2 {x}^{2} + 19x + 3) }{9 {x}^{2} (4x^{2} - 9 )} \\ \\ \huge \orange{ \boxed{= \frac{ - 2 {x}^{2} + 19x + 3 }{3 {x} (4x^{2} - 9 )} }}\)
Find the measure of angle AEB
Answer:
∠ AEB = 114°
Step-by-step explanation:
the chord- chord angle AEB is half the sum of the measures of the arcs intercepted by the angle and its vertical angle , that is
∠ AEB = \(\frac{1}{2}\) (AB + CD) = \(\frac{1}{2}\) (140 + 88)° = \(\frac{1}{2}\) × 228° = 114°
help me please im stuck
Answer:
\(x+5\) hours
Step-by-step explanation:
Erica always tutors 5 hours a week. She babysits for x hours a week. To find the total number of hours she works a week, we must add these two values together: \(x+5\).
Thus, the answer is \(x+5\) hours.
You determine the percent abundance of
each length of nail and record it in the data
table below.
Sample
Type
Short nail
Medium nail
Long nail
Number Abundance
of Nails
(%)
67
18
10
70.5
19.0
10.5
Nail Length
(cm)
2.5
5.0
7.5
What is the weighted average length, in cm,
of a nail from the carpenter's box?
Weighted Ave Length
Enter
The weighted average length of a nail from the carpenter's box whose distribution is give in image is: 3.5cm.
What is weighted average ?
Weighted average is a type of average that takes into account the relative importance or weight of each data point. In a weighted average, each data point is multiplied by a corresponding weight, which reflects its relative importance, and the products are then summed and divided by the sum of the weights.
To find the weighted average length of a nail, we need to multiply each nail length by its percent abundance, then add up all the products and divide by the total percent abundance.
Let's start by calculating the product of each nail length and its percent abundance:
Short nail: (2.5 cm) x (70.5%) = 1.7625 cm
Medium nail: (5.0 cm) x (19%) = 0.95 cm
Long nail: (7.5 cm) x (10.5%) = 0.7875 cm
Now, we add up all the products:
1.7625 cm + 0.95 cm + 0.7875 cm = 3.5 cm
Finally, we divide by the total percent abundance:
70.5% + 19.0% + 10.5% = 100%
Therefore, the weighted average length of a nail from the carpenter's box is: 3.5 cm ÷ 100% = 3.5cm
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what is the y intercept when the coordinate is 4,-1 and the slope is -2
Answer:
y- intercept = 7
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here m = - 2 , then
y = - 2x + c ← is the partial equation
to find c substitute (4, - 1 ) into the partial equation
- 1 = - 2(4) + c = - 8 + c ( add 8 to both sides )
7 = c
that is the y- intercept = 7
Floyd builds rectangles using matches, as shown below. When the length of the rectangle is 3 matches, he used 8 matches. When the length of the rectangle is 7 matches, he used 16 matches. How many matches does Floyd need to make a rectangle with length 20 matches? [Type in only o numeric digit as your answer with no spaces Answer: Search Q
Floyd needs 33 matches to make a rectangle with a length of 20 matches.
To find out how many matches Floyd needs to make a rectangle with a length of 20 matches, we can observe a pattern in the given information.
From the given data, we can see that as the length of the rectangle increases by 4 matches, the number of matches used increases by 8. This means that for every additional 4 matches in length, Floyd requires 8 more matches.
Using this pattern, we can calculate the number of matches needed for a rectangle with a length of 20 matches.
First, we need to determine the number of 4-match increments in the length of 20 matches. We can do this by subtracting the starting length of 3 matches from the target length of 20 matches, which gives us 20 - 3 = 17.
Next, we divide the number of 4-match increments by 4 to determine how many times Floyd needs to add 4 matches. In this case, 17 ÷ 4 = 4 with a remainder of 1.
Since Floyd requires 8 matches for each 4-match increment, we multiply the number of increments by 8, which gives us 4 × 8 = 32 matches.
Finally, we add the remaining matches (1 match in this case) to the total, resulting in 32 + 1 = 33 matches needed to reach a length of 20 matches.
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Which fraction is closest to 1/2
?
The fraction which is closest to 1/2 is, 3/8. So option B is correct
What is a fraction?Fraction is a mathematical term, which represents the portion or sub-parts of the whole thing. Basically, It has two parts: numerator and denominator.
Numerator is a number which lies on the top side, it indicates the number of equal parts taken and denominator is on the bottom side, it indicates the equal parts of the whole number.
Given that,
A fraction number 1/2
In decimal form = 0.5
Closest fraction number = ?
Most closest number is that number from which we subtract the given number and the magnitude of result we get is very less,
Lets take, A fraction 1/6
In decimal form it can written as, 0.167
Difference 1 = 0.5 - 0.167
= 0.333
Similarly, For numbers 3/8, 3/4, -1/2
Difference 2 = 0.5 - 0.375 = 0.125
Difference 3 = 0.5 - 0.75 = -0.25
Difference 4 = 0.5 - (-0.5) = 1.0
It can be seen that,
Magnitude of difference in case of 3/8 is very less
Hence, the closest number is 3/8
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can someone help me i will give brainlest
Answer:
(48, 3), (80, 5), (160, 10)
Ms. Keenan is a high school teacher who wants to know how much time students spend studying each day. She finds that the average student spends 3.00 hours a day studying (s - 0.75). Assuming that studying hours is normally distributed, what percentage of students study less than 2.50 hours a day?
© 25.14 percent
© 19.15 percent
© 10.93 percent
© 24.86 percent
The requried, percentage of students who study less than 2.50 hours a day is approximately 25.14 percent.
What is the Z -a score?A Z-score is stated as the fractional model of data point to the mean using standard deviations.
We need to convert 2.50 hours to a standard score (z-score) using the formula,
z = (x - μ) / σ
where x is the value we want to convert, μ is the mean, and σ is the standard deviation.
z = (2.50 - 3.00) / 0.75
z = -0.67
This means that 2.50 hours is 0.67 standard deviations below the mean.
We can use a standard normal distribution table or a calculator to find the percentage of the distribution that falls below this standard score. For example, using a standard normal distribution table, we can look up the area to the left of z = -0.67 and get:
P(z < -0.67) = 0.2514
So the correct answer is (a) 25.14 percent.
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Write an inequality that states the following: No student studied greater than 6 hours for the test this weekend.
Answer:do you want to talk
Step-by-step explanation:
I will tell you in the answer
Solve: 2m³-5m² - 7m = 0
Answer:
m = - 1 , m = 0 , m = \(\frac{7}{2}\)
Step-by-step explanation:
2m³ - 5m² - 7m = 0 ← factor out common factor m from each term
m(2m² - 5m - 7) = 0
factorise the quadratic 2m² - 5m - 7
consider the factors of the product of the coefficient of the m² term and the constant term which sum to give the coefficient of the m- term
product = 2 × - 7 = - 14 and sum = - 5
the factors are + 2 and - 7
use these factors to split the m- term
2m² + 2m - 7m - 7 ( factor the first/second and third/fourth terms )
2m(m + 1) - 7(m + 1) ← factor out (m + 1) from each term
(m + 1)(2m - 7)
then
2m³ - 5m² - 7m = 0
m(m + 1)(2m - 7) = 0 ← in factored form
equate each factor to zero and solve for m
m = 0
m + 1 = 0 ( subtract 1 from both sides )
m = - 1
2m - 7 = 0 ( add 7 to both sides )
2m = 7 ( divide both sides by 2 )
m = \(\frac{7}{2}\)
solutions are m = - 1 , m = 0 , m = \(\frac{7}{2}\)
On Monday, you swim 12 laps in 30 minutes. On Tuesday, you swim 15 laps in 45 minutes. Are these rates proportional?
Answer:
no.
Step-by-step explanation:
12/30 = 0.4
15/45 = 1/3
what is the answer to this question
1/2 x -7=1/3(x-12)
Answer:
= 1 8 hope this helps!!! :)
Step-by-step explanation:
1 2 ⋅ −7 = 1 3 ( − 1 2 )
1 2 − 7 = 1 3 −1 2 )
1 2 − 7 = 1 3 − 1 2 )
Multiply by 1
Combine multiplied terms into a single fraction
Multiply by 1
Add to both sides of the equation
Answer:
x = 3/2 = 1 1/2 = 1.5
Step-by-step explanation:
1/2 x -7=1/3(x-12)
Multiply 1/2 and -7 to get -7/2
-7/2 = 1/3(x-12)
Fraction -7/2 can be rewritten as -7/2 by extracting the negative sign.
- 7/2 = 1/3(x-12)
Use the distributive property to multiply 1/3 by x−12.
-7/2 = 1/3x + 1/3(-12)
Multiply 1/3 and −12 to get -12/3
-7/2 = 1/3x + -12/3
Divide −12 by 3 to get −4.
-7/2 = 1/3x + 4
Swap sides so that all variable terms are on the left hand side.
1/3x -4 = -7/2
Add 4 to both sides.
1/3x = -7/2 + 4
Convert 4 to fraction 8/2
1/3x = -7/2+8/2
Since -7/2 and 8/2 have the same denominator, add them by adding their numerators.
1/3x = -7+8/2
Add −7 and 8 to get 1.
1/3x = 1/2
Multiply both sides by 3, the reciprocal of 1/3
x = 1/2 x 3
Multiply 1/2 and 3 to get 3/2
x = 3/2
Identify the slope when given the points (1, -5) and (3, 1)
The slope = 3
Explanations:The slope of a line when given the points (x₁, y₁) and (x₂, y₂) is calculated using the formula:
\(m\text{ = }\frac{y_2-y_1}{x_2-x_1}\)The line passes through the points (1, -5) and (3, 1)
This means that x₁ = 1, y₁ = -5, x₂ = 3, y₂ = 1
Substitute these points into the slope formula:
\(\begin{gathered} m\text{ = }\frac{1-(-5)}{3-1} \\ m\text{ = }\frac{1+5}{2} \\ m\text{ = }\frac{6}{2} \\ m\text{ = 3} \end{gathered}\)Ten granola bars and twelve bottles of water cost $23. Five granola bars and four bottles of water cost $10. How much do one granola bar and one bottle of water cost?$ Part BFor a fundraiser, a group plans to sell granola bars and bottles of water at the same prices as described in Part A. The group wants the income from the fundraiser to be at least $150.Choose the inequality to show the number of granola bars x and the number of bottles of water y that must be sold.A.1.4x + 0.75y > 150B.1.4x + 0.75y ≥ 150C.1.4x + 0.75y < 150D.1.4x + 0.75y ≤ 150
We want to find the cost of a granola bar and a water bottle. Let x be the cost of the granola bar and y the cost of the water bottle. We are told that 10 granola bars and 12 bottles of water cost 23. As x is the cost of one granola bar, 10 x is the cost of 10 granola bars. So if we add the cost of the granola bars and the cost of the water bottles we get the total cost. This leads to the equation
\(10x+12y=23\)Now, if we calculate the equation for the other situation (5 granola bars and 4 bottles are 10) we get the equatio
\(5x+4y=10\)Let us multiply the second equation by 2. So we get
\(10x+8y=20\)Now, we can subtract the second equation from the first one, so we ge t
\(10x+12y\text{ - (10x+8y)=4y=23-20=3}\)so if we divide both sides by 4, we get
\(y=\frac{3}{4}=0.75\)so the cost of one water bottle is 0.75
Now we replace this value in the first equation, so we get
\(10x+12\cdot\frac{3}{4}=23=10x+9=23\)If we subtract 9 from both sides we get
\(10x=23\text{ -9=14}\)So if we divide both sides by 10, we get
\(x=\frac{14}{10}=1.4\)so the cost of a granola bar is 1.4
Now, we know that a granola bar costs 1.4 and a water bottle costs 0.75. If we sell x granola bars, the total income for x granola bars would be 1.4x. In the same manner, the total income for y water bottles would be 0.75y. If we add this two quantities we get
\(1.4x+0.75y\)as this quantity should be at least 150, this means that it is greater than or equal to 150, so we get the inequality
\(1.4x+0.75y\ge150\)which is option B
please answer fast...............................
The coordinate of point R after the rotation is determined as = ( - 4, 7).
option A.
What is the rotation of a figure?A rotation is a transformation that turns the figure in either a clockwise or counterclockwise direction.
You can turn a figure 90°, a quarter turn, either clockwise or counterclockwise. When you spin the figure exactly halfway, you have rotated it 180°. Turning it all the way around rotates the figure 360°.
When a figure is rotated 180 degrees, each point of the figure is moved to a new position that is exactly opposite its original position with respect to a fixed center of rotation.
The initial coordinate of point R = ( 4, 7),
The new coordinate of point R after the rotation = ( - 4, 7)
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An ice cream shop chose 25 customers at random and asked each to name a
favorite flavor. The results are summarized in the pie chart below.
Favorite Flavor
16%
28%
12%
Mint Chocolate Chip
Strawberry
Cookies and cream
Vanilla
Butterscotch
24%
20%
How many of the 25 customers named vanilla?
A. 4
B. 5
C. 3
D. 6
Answer:
6
Step-by-step explanation:
Its 6 or 4, but leaning toward 6
3 of the 25 customers named vanilla, option C is correct.
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given that an An ice cream shop chose 25 customers at random and asked each to name a favorite flavor.
Butterscotch - 16%
Vanilla - 12%
Mint Chocolate Chip -28%
Strawberry-20%
Cookies and cream-24%
We have to find the number of customers named vanilla
Let us find 12% of 25
12/100×25
0.12×25
We get 3
Hence, 3 of the 25 customers named vanilla, option C is correct.
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Benny purchased $400,000 of Peach Corporation face value bonds for $320,000 on November 13, 2020. The bonds had been issued with $80,000 of original issue discount (OID), because Peach was in financial difficulty in 2020. On December 3, 2021, Benny sold the bonds for $283,000 after amortizing $1,000 of the original issue discount.
What are the nature and amount of Benny's gain or loss?
Benny has a $fill in the blank 1
long-term capital loss
from the sale of the bonds.
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for every 5 people who bought $9.75 tickets to the football game, 3 people bought $14.50 tickets. If each of 35 people bought a $9.75 ticket, how many people bought the more expensive ticket?
9514 1404 393
Answer:
21
Step-by-step explanation:
The number who bought expensive tickets is 3/5 of the number who bought cheap tickets.
(3/5)(35) = 21
21 people bought the more expensive ticket.
Answer:
21 people
Step-by-step explanation:
$9.75 $14.50
5 people to 3 people
35 people to ? people
consider the proportions: 5/3 = 35/?
we need the equivalent fraction of 5/3 that has 35 on the denominator
so 5/3 = (5/3)(7/7) because 7/7 =1, and 5*3 =35
5/3 = 5*7/3*7 = 35/21
25) Find the measure of the side MN.
A) 17.1
B) 18.1
C) 19.1
The measure of the side MN is 19.1.
What are trigonometric functions?In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.
The different trigonometric identities are expressed as:
cosine, tangent, cotangent, cosecant, secant, and sineFrom the information given, we have that:
The opposite side of the triangle is MNThe adjacent side is 11ftUsing the tangent identity:
\(\text{tan} \ \theta = \dfrac{\text{opposite}}{\text{adjacent}}\)
Substitute the values
\(\text{tan}(60) =\dfrac{\text{MN}}{11}\)
Cross multiply the values, we have:
\(\text{MN} = \sf 1.73(11)\)
\(\text{MN} = 19. 05 \thickapprox\bold{\underline{19.1 \ ft}}\)
Hence, the measure of the side MN is 19.1.
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An artist painted a scale model of one of her paintings using a scale in which 5 inches represents 50 feet the actual height of the painting is 450 feet. What is the height of the painting in inches?
Answer:
5400
Step-by-step explanation:
What is the BEST scale for the x-axis if you have the points {(8,3), (-12,-5),
(4, -6), (10, 4), (16, 7)}? *
What is (-2)+(-5) on a number line explained
Answer:
(-2)+(-5) = -7
Step-by-step explanation:
-2 + -5 = -7
but negative PLUS a negative equals a negative so the answer is going to be a negative, and just to keep in mind in the future that a negative PLUS a negative will give us a negative and negative TIMES a negative gives us a positive, and a positive PLUS a positive gives us a positive and a positive TIMES a positive gives us a positive and Negative times a positive equals a negative and negative PLUS a positive find the sum take the absolute value of each integer and then subtract the values.
The answer is -7 hope this helped! :)
Answer:
-7
Step-by-step explanation:
they add upp because they both negative
What is the relationship between the 6s in 543,862 and 385,621
In the first number, the 6 is in the tens place. It represents 60.
The second number has the 6 in the hundreds place. It represents 600.
The 6 in the second number is ten times greater than the 6 in the first number.
It might help to expand each number out
543,862 = 500,000 + 40,000 + 3,000 + 800 + 60 + 2385,621 = 300,000 + 80,000 + 5,000 + 600 + 20 + 1And it should be more clear what the connection is.