Answers
Step-by-step explanation:
we don't need to actually do the detailed area calculation.
all we need to consider is that an area, ANY area (for triangles, rectangles,...) is always the product or the sum of products of 2 dimensions (like side lengths).
the scaling factor of similar objects (incl. triangles of course) applies to each individual line, length, height or side.
so, when calculating the area of a similar figure, the scaling factor has to be multiplied in twice (once for every multiplied dimension) - making it the square of the normal single-dimensional scaling factor.
so, in other words, the area scaling factor is the square of the side scaling factor.
coming from A1 to A2 the area scaling factor is
80/45 = 16/9
the side scaling factor is then
sqrt(16/9) = 4/3
we have to multiply a side of A1 by 4/3 to get the corresponding side of A2.
and so, the ratio of A1 side lengths to A2 side lengths is
3:4
(the inverse, upside-down form of the scaling factor as a consequence of the question "how do I convert the 3 length units of A1 into 4 length units of A2 ?" by multiplying the 3 units by the scaling factor 4/3).
Related Questions
25
24.
What is the value of x?
(4x + 1)
F 9.5
G 18
(2x - 19)
H 33
J 81
Answers
Answer:
33 degrees
Step-by-step explanation:
(4x+1) and (2x-19) add up to 180 degrees
[tex](4x+1)+(2x-19)=180\\6x-18=180\\6x=198\\x=33[/tex]
find the quantities of 18% of 50
Answers
Answer:
9
Step-by-step explanation:
18%of 50
18/100×50
0.18×50= 9
Answer:
9
Step-by-step explanation:
18% of 50
We can rewrite it as,
% = 1/100of = *(into)> 18/100 * 50
Solving,
18/100 * 5018/10 * 518/29Hence,18% of 50 = 9
Arturo is
putting 18 erasers into equal rows. He
says there will be more erasers in 2 equal
rows than in 3 equal rows Is Arturo
correct?
Answers
Answer:
Yes
Step-by-step explanation:
When there are 2 rows
Number of erasers per row = No. of erasers / No. of rowsNumber of erasers per row = 18/2Number of erasers per row = 9When there are 3 rows
Number of erasers per row = No. of erasers / No. of rowsNumber of erasers per row = 18/3Number of erasers per row = 6Therefore, there will be more erasers per row in 2 equal rows than in 3 equal rows.
Can someone please help me out with this question?
Answers
Answer:
Dependent
Step-by-step explanation:
Since the marble is not returned, the result of the second probability is dependent upon which marble was 1st drawn.
IF UR GOOD WITH MATHS THIS ONES FOR U SURELY HELP :) ILL BRAINLIST I PROMISE THIS IS SO DIFFICULT IM GONNA RAGE.
Answers
Answer:
[tex] d = sin(39) \times 30[/tex]
Your friend has t marbles. You have 11 marbles. You and your friend have a total of 29 marbles. Write an equation that you can use to find t
Answers
Answer:
t + 11 = 29
Step-by-step explanation:
Since you are combining your total and your friend's total marbles together, this will be an addition equation.
t + 11 = 29
Out of a population of 1,500 students, 100 were asked by a random sampling to choose their favorite national park. their responses are shown in the table below. national parks favorite park number of students acadia 19 carlsbad caverns 14 rocky mountain 30 grand canyon 23 yosemite 14 using proportional reasoning, about how many students out of the 1,500 would you expect to pick yosemite for their favorite national park? 14 86 210 244
Answers
Answer:
210
Step-by-step explanation:
the sample is one 15th of the total population, and thus Yosemite's 14 should be scaled back by 15
1500/100 = 15
15 * 14 = 210
Answer:
210
Step-by-step explanation:
I did the test
how to solve this equation its complicated
Answers
Answer:
x(adjucent ) = 3.8
Step-by-step explanation:
okay so you are been giving me a left angle triangle so what you are supposed to do is that the longest part which is indicated 7.4 is called the hypothesis whiles the other side indicated 3.6 is called the opposite and the down part is the adjacent. so to find the adjacent your formula is opposite + adjacent = hypothesis .
so therefore we can see that
3.6 + x = 7.4
x = 7.4 - 3.6
x = 3.8
TRUE OR FALSE:
The difference between permutations and combinations is whether the order of items matters.
Answers
The answer is...:
True
HELPPPPPPP! DUE TOMORROW
Answers
Answer: Check the step by step
Step-by-step explanation:
Measure of <2 = 37.3 because opposite sides of a line are congruent. To find < 1, you have to add that plus <2 ( 37.3 ) to equal 180. 180 -37.3 = 142.7
For <3, it is also gonna be 142.7 ( as said before, opposite sides are congruent. ) and for <4, it is gonna be 79.4. Hope this helps! If you have any other questions, let me know! :D
Using the following figure select all statements that are TRUE. (Write the number of the statement and separate them with a comma)
Answers
Answer:
3
Step-by-step explanation:
Ms. Wink bought a helmet for $97.95, a loek for $12.39, and a pump for $8.50. The tax was $3.82. How much change did she receive from 2 fifty-dollar bills?
Answers
Answer:
I dont think 2 50 doallr bills is gonna work
Step-by-step explanation:
all of this added togather is 122.66 and 2 50 is a 100 so yah
Write the standard form of the equation
Answers
Answer:B
Step-by-step explanation:
what is the area of a triangular prism?
Answers
Answer:
14! i think :D
Step-by-step explanation:
im probly worngg TvT
What is the probability that a person who is above 35 years old has a hemoglobin level of 9 or above? a. 0.357 b. 0.313 c. 0.531 d. 0.343 e. 0.432
Answers
Using it's concept, it is found that the probability that a person who is above 35 years old has a hemoglobin level of 9 or above is of 0.247.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
Researching the problem on the internet, we find a table, which says that there are 162 participants above 35 years old, and 40 have hemoglobin levels of 9 and above, hence the probability is given by:
p = 40/162 = 0.247.
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Answer:
Actually, its option C when the hemoglobin level is of 9 or above
Step-by-step explanation:
C. 0.531
How many solutions does the following equation have? 14(8x −4) = 2x + 1
Answers
A farmer has hens, this hen composes 2500 eggs every month. A farmer has 2500 eggs a month, 25% of these eggs are sold in restaurant. How much is the total number of eggs sold in the restaurant, if 35 eggs are sold in the restaurant.
Answers
Answer:
625 eggs are sold in a restaurant
2500-100%
x- 25%
62500=100x
x=625 eggs
Answer:
21875
Step-by-step explanation:
25% x 35 x 2500
= 0.25 x 35 x 2500
=21875
what is blank % of 18 = 9
Answers
Answer:
50 percent, trust me.
Answer: 50%
Step-by-step explanation: 50/100 x 18 = 9
50/100 can also be written as 0.5
0.5 x 18 = 9
of = multiply
OC is perpendicular to AB. What is the length of AB?
A. 8.8 units
B. 4.4 units
C. 13.2 units
D. 2.2 units
Answers
Answer:
A.8.8 units
Step-by-step explanation:
Answer:
The correct answer is 8.8 units
Step-by-step explanation:
I just got it correct.
A cylinder and a cone have the same radius and height. The volume of the cylinder is 150 in^3. What is the volume of the cone?
Answers
Answer:
50 cm³
Step-by-step explanation:
Given volume of cylinder is 150 in³
we know that The volume of cone 1/3rd of cylinder.
Then volume of cone is 150/3 = 50 cm³
|z-7|-|z-9| if z<7
PLSSS QUICKLY HELP
Answers
Answer:
-2
Step-by-step explanation:
The difference between a number and three fourths of itself is 15. Find the number.
Answers
Answer:
60
Step-by-step explanation:
lets say the number is X so:
X-3/4X=15
then multiple both sides by 4 then you will get
4X-3X=60
SO:X=60
Answer:
60Step-by-step explanation:
let x be the number that we are trying to figure out.
the statement “The difference between a number and three fourths of itself is 15” means x + (3/4)x = 15
then
(1/4)x = 15
Then
x = 4 × 15
Then
x = 60
Which is wrong? Question is below in link.
Answers
In simplifying the given expression, the error made was in Step 4. 7c - 41 is wrong. The correct answer should be -c - 59.
How to Simplify Expressions?In simplifying expressions, like the one given, first apply the distributive property to clear out the bracket.
Next is to combine like terms. In step 4, there was an error in the calculation while combining like terms.
-6c - 3c + 10c should give us -c NOT 7c.
Also, 3 - 12 - 50 should give us -59 not -41.
Therefore, the correct answer should be:
-c - 59.
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explain how to correctly find the missing side.
Will Mark Brainist If Correct!
Answers
Let's check Pythagorean theorem
A²+B²=C²A is perpendicular
B is base
C is Hypotenuse
A²+4²=13²A²+16=169A²=153A=3√17Answer:
[tex]3 \sqrt{17}[/tex]
Step-by-step explanation:
The given triangle is a right triangle. Therefore, we can use Pythagoras Theorem to find the measure of the third side.
Pythagoras Theorem
[tex]a^2+b^2=c^2[/tex]
where:
a and b are the legs of the right trianglec is the hypotenuse (longest side) of the right triangleFrom inspection of the given triangle:
a = 4c = 13To calculate the measure of the third side "b", substitute the given values into the formula and solve for b:
[tex]\begin{aligned}a^2+b^2 & = c^2\\\implies 4^2+b^2 & = 13^2\\16+b^2 & = 169\\16+b^2-16 & = 169-16 \\b^2 & = 153\\\sqrt{b^2} & =\sqrt{153}\\b & = \sqrt{9 \cdot 17}\\b & = \sqrt{9}\sqrt{17}\\b & = 3\sqrt{17}\end{aligned}[/tex]
Therefore, the measure of the third side of the given right triangle in simplest radical form is [tex]3 \sqrt{17}[/tex].
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Which of the following pairs of numbers has 16 as their greatest common factor?
32, 48
32, 48
32, 62
32, 62
48, 36
48, 36
42, 16
42, 16
Answers
Answer:
32, and 48. This is the greatest factor of 16
Which graph shows the solution to the system of linear inequalities?
2x – 3y <12
y < –3
On a coordinate plane, 2 lines are shown. The first dashed straight line is horizontal to the y-axis at y = negative 3. Everything below the line is shaded. The second solid line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything below the line is shaded.
On a coordinate plane, 2 lines are shown. The first dashed straight line is horizontal to the y-axis at y = negative 3. Everything above the line is shaded. The second solid line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything above the line is shaded.
On a coordinate plane, 2 lines are shown. The first dashed straight line is horizontal to the y-axis at y = negative 3. Everything below the line is shaded. The second solid line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything above the line is shaded.
On a coordinate plane, 2 lines are shown. The first dashed straight line is horizontal to the y-axis at y = negative 3. Everything above the line is shaded. The second solid line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything below the line is shaded.
Answers
Since the graph was not given, answer will be subjective. The graph that shows the solution to the system of linear inequalities of 2x – 3y <12 y < –3 is the one that has It is option B.
What is linear inequalities?A linear inequality is said to be a kind of an inequality that entails a linear function.
Note that a linear inequality is said to be made up of one of the symbols that connote inequality. It is the one that depicts the data that is not equal on a graph.
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Answer:
The correct answer is Graph B
Step-by-step explanation:
Hope this helped you!If it did hit that Brainliest button!
Please answer this qjusetion. :)
Answers
The answer to number 1 is 20%.
The answer to number 2 is the top left box. She charges $100 for each one hour lesson.
Find the length of the segment that joins the points (-5,2) and (4,-3).
Answers
Answer:
10.2956
Step-by-step explanation:
formula:
d = √((x2-x1)2 + (y2-y1)2)
(x1, y2) and (x2, y2)
(-5,2) and (4,-3).
Find the difference between coordinates:
(x2-x1) = (4 - -5) = 9
(y2-y1) = (-3 - 2) = -5
Square the results and sum them up:
(9)2 + (-5)2 = 81 + 25 = 106
Now Find the square root and that's your result:
Exact solution: √106 = √106
Approximate solution: 10.2956
What is the value of f(g(1)
Answers
Composite functions is a way of substituting one function into another. The value of the composite function f(g(1)) is 1
Composite functionsComposite functions is a way of substituting one function into another.
Given the function expressed as:
y = 3√x + 1
g(1) from the mapping is 0
Substitute g(1) = 0 into the given function to have:
f(g(1)) = 3√0 .+ 1
f(g(1)) =0 + 1
f(g(1)) = 1
Hence the value of the composite function f(g(1)) is 1
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I need help(!) I appreciate a good explanation so I can understand it too (!)
Answers
The ranges values of the function f(x) are: {-89,-9,7} - Option D.
Domain and RangeThe domain of a function is the set of input values for which the function is real and defined. In the other words, when you define the domain, you are indicating for which values x the function is real and defined.
While the domain is related to the values of x, the range is related to the possible values of y that the function can have.
Here, you need to replace the domain values in the given equation.
f(x)=-2x²+9
For x=-3f(x)=-2*(-3)²+9
f(x)=-2*9+9
f(x)=-18+9=-9
For x=1f(x)=-2*(1)²+9f(x)=-2*1+9f(x)=-2+9=7For x=7f(x)=-2*(7)²+9f(x)=-2*49+9f(x)=-98+9=-89Learn more about the range here:
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