Answer:
a.20%
Step-by-step explanation:
because of the book is 100$ and the thereby sold it and gained 20$ equals to 20%
Please help! I'll give brainlist
Explanations Needed (In-Depth)
I need explanations for Properties of Dilations and Similarity and Similarity Transformations.
I am in 10th-grade Geometry, Thank you so much!
Answer:
Properties of Dilation
Each angle of the figure is the same. Midpoints of the sides of the figure remain the same as the midpoint of the dilated shape. Parallel and perpendicular lines in the figure remain the same as the parallel and perpendicular lines of the dilated figure. The images remain the same.Similarity. In order for two figures to be similar, they must have congruent (equal) corresponding angle measures and proportional sides. Dilations create similar figures because multiplying by the scale factor creates proportional sides while leaving the angle measure and the shape the same.A similarity transformation is one or more rigid transformations (reflection, rotation, translation) followed by a dilation. When a figure is transformed by a similarity transformation, an image is created that is similar to the original figure. ... In general, similarity transformations preserve angles.A dilation stretches or shrinks a figure. The image created by a dilation is similar to the original figure. The scale factor of a dilation is the ratio of corresponding side lengths. In this course, the center of dilation will always be the origin.Dilations in Animation
The three basic rigid motions are translations, reflections, and rotations. In addition to being rigid motions, these are also considered transformations. Transformations change the location or orientation of an image but not the shape.Isometric transformations have the same shape AND size, similarity transformations just have the same shape. Isometric transformations have the same shape AND size, similarity transformations just have the same size. They are the same, no differences. ... A stretch is not a similarity transformation.[tex]\color{yellow}{}[/tex]
I need some help!!! i will give brainliest!
Answer:
You save 5.6 dollars.
Step-by-step explanation:
10%
The way we can calculate 10% of a number is to simply move its decimal point down one.
So for instance, 56.00, we move it one decimal place down, getting us 5.60.
1%:
This works for 1% as well, except we move 2 decimal points down instead of 1.
Using these 2 we can very easily find any percent.
Want to find 17% of 99?
Well that sounds like some rotten long division :(.
Actually, though, this is quite easy.
10% of 99 would be 9.9
1% of 99 would be 0.99
To find 17%, just multiply 0.99 by 7.
This is 6.93, you can just make 0.99 1, multiply it by 7, then subtract 0.07 from it.
Add the 9.9 and 6.93 and you get 16.83.
I did this all in my head, and once you practice this, you could calculate this even quicker than with a calculator!
Hope this helps!
Find the center and radius of the circle whose equation is x 2 + y 2 - 6x - 2y + 4 = 0
(3,1), r = /6
(-3,-1), r = /6
(3,1) r = 6
(9,1), r = 36
Answer:
Solution given:
the equation of a circle is:
x²+y²-6x-2y+4=0
x²-2*x*3+3²+y²-2y+1²-1²+4=0
(x-3)²+(y-1)²=9+1-4
(x-3)²+(y-1)²=6
comparing above equation with
(a-h)²+(y-k)²=r²
we get
centre (h,k)=(3,1)
radius=√6
option first
(3,1), r = √6 is a required answer.
Answer:
(3,1), r = √6 is a required answer.
Step-by-step explanation:
phone, it can expect to sell 1,000-2x phones.
The company uses the function r defined by r(x)=x⋅(1,000−2x) to model the expected revenue, in dollars, from selling cell phones at x dollars each.
Answer the 2 questions below.
a) What are the X-Intercepts and what do they mean in this situation?
b) At what price should the company sell their phones to get the maximum revenue? Explain your reasoning
Answer:
Step-by-step explanation:
The x intercepts are 0 and
1000 - 2x = 0 given condition
1000 = 2x Divide by 2
500 = x
So the two intercepts are 0,0 and 500,0
The intercepts mean that for (0,0) the phone company hasn't charged anything, yet. For 500,0 the phone company can sell a single phone -- not when they cost 500 dollars apiece.
The answer to the B part is completing the square.
r(x) = - 2x^2 + 1000x
r(x) = -2(x^2 - 500x )
1/2 ( 500) = 250
250^2 is what you put inside the bracket's to complete the square.
r(x) = - 2(x^2 - 500x + 250^2) + 2*250^2
r(x) = -2(x - 250)^2 + 2*62500
r(x) = - 2(x - 250)^2 + 125000
They should sell their phones at 250 dollars a piece. The total revenue is 125000. Your graph shows exactly the same thing.
How many solutions does x²+3x=3 have?
Answer:
2 (real) solutions.
Step-by-step explanation:
A quadratic always has two solutions, whether they are real or complex.
Sometimes the solution is complex, involving complex numbers (2 complex), sometimes they are real and distinct (2 real), and sometimes they are real and coincident (still two real, but they are the same).
In the case of
x^2+3x = 3, or
x² + 3x -3 = 0
we apply the quadratic formula to get
x = (-3 +/- sqrt(3^2+4(1)(3))/2
to give the two solutions
{(sqrt(21)-3)/2, -(sqrt(21)+3)/2,}
both of which are real.
Very confusing, please help
Answer:
A -2*-2 ≠- 4
Step-by-step explanation:
sqrt(-4)
The answer is an imaginary number
-2*-2 = 4 not -4
Answer:
[tex]\sqrt{-4} \neq -2 \\[/tex] because -2 times -2 equals 4 not -4.
Therefore A. [tex]-2^{2}\neq 4[/tex] is the answer to this question.
If you need help on similar problems feel free to ask, hope I helped :)
Sin y+ cos y + tan y sin y=sec y+ cos y tan y?
Answer:
sec y
Step-by-step explanation:z
Can someone Help me with this:
Felipe’s solution to an equation is shown below:
Given: x^2+6x+8=0
Step 1: (x+2)(x+4)=0
Step 2: x+2=0 or x+4=0
Step 3: x= -2 or x= -4
Which property of real numbers did Felipe’s use for step 2?
A. Distributive property of multiplication over addition
B: Multiplication property of equality
C. Commutative property of multiplication
D: Zero product of multiplication
Answer:
D. Zero product of multiplication
Step-by-step explanation:
The given equation is presented as follows;
Given: x² + 6·x + 8 = 0
By factorization, to find numbers represented by variables, 'a' and 'b', such that a + b = 6 and a×b = 8, we have, a = 2, and b = 8 as a possible solution by observation
Step 1: (x + 2)·(x + 4) = 0
Given that (x + 2) × (x + 4) = 0, we have
Step 2: x + 2 = 0 or x + 4 = 0, by zero product of multiplication
The zero-product property states that the when two non zero numbers are multiplied, the result is nonzero
Therefore, when two numbers are multiplied, and have a result of zero, for example, i × j = 0, then, either, i = 0, or j = 0
By the zero-product rule, either, (x + 2) = 0, or (x + 4) = 0
Therefore, we have;
Therefore;
Step 3: x = -2 or x = -4
The property of real numbers Felipe's use for step 2 is the Zero product of multiplication.
What are the quartiles of the data represented by the box-and-whiskers graph shown.
23, 26, 28, 30.5
26, 28.5, 30.5, 35
23, 26, 28.5, 31.5
26, 28.5, 32.5, 34
Answer: 26 and 31.5
Step-by-step explanation: it litterally shows it in the picture
Question 34 of 98
Five friends go to the movies. The price for each ticket is
$6.99. One person thinks the total for all five people will be
around $35.00.
Is this a reasonable estimate? Why?
A. Yes, a reasonable estimate is around 6 . $8 = $48.
B. Yes, a reasonable estimate is around 6. $7 $42.
C. No, a reasonable estimate is around 5 . $9 = $45.
D. Yes, a reasonable estimate is around 5 - $7 = $35.
Answer:
D. Yes, a reasonable estimate is around 5 - $7 = $35.
I need help for grades!!!
Yes, the relation shown is a function because every element in the domain has only one distinct image in the co-domain.
I’m not sure this is right can someone please revise me
Pam has 228 ounces of lemonade. She pours the lemonade into
8-ounce cups, filling as many as she can until all the lemonade is
gone. The last cup is not completely full. How much lemonade is
in the last cup?
Answer:
4 ounces
Step-by-step explanation:
If you divide 228 by 8, you will get 28.5. The 0.5 into a fraction would be 1/2. Half of 8 would be 4. In the end, there should be 28 full 8-ounce cups and one cup with 4 ounces.
If you write a product using each prime factor of two polynomials the greatest number of times it occurs in the polynomial, you get the ____________ for the polynomials.
*PLEASE HURRY I ONLY HAVE 3 MINUTES*
least common denominator
least common multiple
mixed expression
mixed martial artist
Answer:
Mixed martial artist
Step-by-step explanation:
Hehehehehehehehheheheh
Answer:
B, E
Step-by-step explanation:
A would be wrong because the second part (up 1) would give you (5,1) The origin is (0,0)
B is correct because (5,0) has a 5 as the x coordinate
C is wrong because the y coordinate is 0
D is wrong because A is on the x since the y coordinate is 0
E is correct because (5,0) has a 5 on the x and a 0 on the y
PLEASSSS ANSWERRR
Josh offers to buy a team photo for 10 of his teammates,
but 2 of them don't want one.
If a team photo costs $4, how much will Josh spend on his teammates?
Answer:
ok lets turn this into a equation
x=4(10-2)
x=4(8)
X=32
so josh will spend 32 dollars on his team mates
Your Welcome
BIFFY OUT!!!
Answer:
The expression is 4(10 - 2).
Josh will spend $32
Step-by-step explanation:
Hope It HEPLS :D
Peyton's car is 108 inches long How many feet
long is his car?
Answer:
9 Feet
Step-by-step explanation:
Inches: 108
Feet: 9
Divide the length value by 12
evaluate ab/c if a=5, b=6 and c=3
Answer:
Step-by-step explanation:
ab/c
substitute the vale of a,b and c
=5*6/3
=30/3
=10
Answer:
10
Step-by-step explanation:
Given
[tex]\frac{ab}{c}[/tex] ← substitute the given values into the expression
[tex]\frac{5(6)}{3}[/tex] = [tex]\frac{30}{3}[/tex] = 10
Which of the following expressions represents
the product of 3k and the sum of m and
one third of n?
Answer:
[tex]3k (m + \frac{1}{3}n)[/tex]
Step-by-step explanation:
Sum of m and one - third of n is :
[tex]= m + \frac{1}{3}n[/tex]
Product of 3k to the sum is :
[tex]=3k \times (m + \frac{1}{3}n)[/tex]
Simplify (1+ 3) (2-3)
Step-by-step explanation:
[tex] \sqrt{3} - 1[/tex]
Answer:
-1 + √3
Step-by-step explanation:
use the F.O.I.L method to solve this.
"firsts"
1 * 2 = 2
"outsides"
1 * -√3 = -√3
"insides"
√3 * 2 = 2√3
"lasts"
√3 * - √3 = -3
so you get:
2 - √3 + 2√3 - 3
combine like terms
-1 + √3
Help me I am stuck on this.
Answer:
It is not
Step-by-step explanation:
Can I get some help solving the missing angle.
Answer:
the ans is 63°
Step-by-step explanation:
94°+24°+x(suppose)=180°(being a triangle)
x=63°
Answer:
its 63
Step-by-step explanation:
117 would be above 90 degreesand clearly its smaller than a 90 degree angle, meaning its 63 or 67 but 94+23=117 and (a full angle which is 180) 180-117 which gives u 63
32x + 26 = -11 can someone help pls Ik in summer school
Answer:
x = -37/32
Step-by-step explanation:
32x + 26 = -11
Subtract 26 from each side
32x + 26-26 = -11-26
32x = -37
Divide each side by 32
32x/32 = -37/32
x = -37/32
Answer:
x= -1 5/32 or x=-1.15625
Step-by-step explanation:
Which would prove that triangle abc~triangle xyz? Select two options .
Answer:
ans: option 1st
Step-by-step explanation:
in similar triangle, corresponding sides are proportional to each other
which point is exterior to APD
Point E is exterior to APD
Answer:
Angle APE is exterior to APD
because it's outside angle APD
How many liters are equal to 3,167 milliliters? Use the placement of the decimal point when dividing by a power of 10 to help you solve.
Answer:
3.167 liters
Step-by-step explanation:
1 liter = 1,000 milliliters
3,167 milliliters * 1liter/1,000milliliters = 3.167 liters
The area of a rectangle is 44 square units. Its length measures 11 units. Find the
length of its diagonal. Round to the nearest tenth of a unit.
Answer:
[tex] \sqrt{137} [/tex]
Step-by-step explanation:
11.7
I need help in this question please !
Answer:
100/101 these will be the answer when we go according to the steps
Line l has a _____ slope.
negative
0
positive
undefined
Answer:
positive
Step-by-step explanation:
negative slopes go from right to left; this line goes from left to right
0; the line isn't completely horizontal
undefined; the line isn't completely vertical