Select the sequence of transformations that show ΔABC is similar to ΔDEF.
Select one:
A. a 180° counterclockwise rotation about the origin and a reflection across the x-axis
B. a horizontal translation 3 units to the right and a vertical translation 2.5 units up
C. a dilation and a 90° counterclockwise rotation about the origin
D. a reflection across the y-axis and a dilation
Answers
Answer:
B
Step-by-step explanation:
point e is three units to the right of point c and point d is 2.5 units up from point a
Related Questions
Please help with this
Answers
Answer:
C. [tex]c = \frac{-7+-\sqrt{129} }{8}[/tex]
Step-by-step explanation:
Before we start, you can think of the variable "c," as x.
The quadratic formula/equation is:
[tex]x = \frac{-b+-\sqrt{b^2-4ac} }{2a}[/tex]
The setup is:
[tex]ax^2+bx+c=0[/tex]
[tex]4c^2+7c-5=0[/tex]
Plug in the numbers accordingly to the letter associated, like so:
[tex]x = \frac{-7+-\sqrt{7^2-4(4)(-5)} }{2(4)}[/tex]
[tex]x = \frac{-7+-\sqrt{49+80} }{8}[/tex]
[tex]x = \frac{-7+-\sqrt{129} }{8}[/tex]
Please Help!!!!!!!!! Extra points and branliest will be given!!!
Answers
Answer: The answer is 12 units
Step-by-step explanation: just finished the unit
Answer:
so it is C
Step-by-step explanation:
a=4
b=5
c=√(4²+5²)=√(16+25)=√41
4+5+√41≈15
Yehudy invested $19.250 in a simple interest account. After 6 years and no additional deposits or withdrawals, the account balance was
$22.957.55. Find the interest rate for the account. Round to the nearest hundredth of a percent if needed
Answers
Answer: 3.21%
Step-by-step explanation:
Interest = (1/t)(A/P - 1)
Write an equation of the line that passes through (2, −2) and is parallel to the line y=3x+9.
Answers
Step-by-step explanation:
Parallel lines have the same slope, so we know that our line will have a slope of 3 because y = 3x + 9 has a slope of 3. Now, we can use the point-slope formula of the line to find the equation.
We have y - y₁ = m (x - x₁) (m = 3, x₁ = 2, y₁ = -2)
y- (-2) = 3 (x - 2)
y + 2 = 3x - 6
y = 3x - 8
Hope this helps!
Answer:
y = 3x - 8
Step-by-step explanation:
We know that parallel lines have the same gradient. In this situation we want want to work the equation of the line that is parallel to y = 3x + 9 and passes through ( 2 , - 2 ). We know that equations of lines usually go in the format of y = mx + c
↔ Where 'm' is the gradient / slope
↔ Where 'c' is the y - intercept
Using the information in the first sentence we can set up an equation to find the value of 'c'
⇒ Form the equation
→ y = 3x + c
⇒ Substitute ( 2 , -2 ) into the equation to find the value of c
→ -2 = 6 + c
⇒ Minus 6 from both sides to isolate c
→ -8 = c
⇒ Put the value of c back into y = 3x + c
→ y = 3x - 8
So equation of the line that passes through ( 2, −2 ) and is parallel to the line y = 3x + 9 is y = 3x - 8
What is the surface of this square pyramid
Answers
Let’s breakdown this question:
They are asking to find the surface area of this square pyramid. The surface area is the total area of all the faces in the square pyramid. The faces are the base (which is a square) and the four triangles surrounding it.
Let’s look at the areas of all the faces.
Area of the square:
Side x Side
3 x 3
= 9
Area of one triangle:
1/2 x Base x Height
1/2 x 3 x 4
= 1/2 x 12
= 6
There are four triangular faces that make up this square pyramid.
So, area of four triangles
= 4 x (Area of one triangle)
= 4 x (6)
= 24
The total surface area of this triangular pyramid
= (Area of square) + (Area of four triangles)
= (9) + (24)
= 33 ft.^2
Which of the following principles of experimental design reduces errors due
to chance by repeating an experiment on different subjects under different
conditions?
A. Placebo effect
B. Replication
C. Randomization
D. Control
E. Blindness
Answers
Answer:
Replication
Step-by-step explanation:
Replication meaning it's going to be repeated, also it said replication was right on a-pex
I WILL GIVE YOU BRAINLIEST, AND 30 POINTS SO PLEASE HELP ME, IT'S URGENT!
Answers
Answer:
31.5 units^2
Step-by-step explanation:
This is a right triangle
The x dimension is from B to C
-4 to 3 is 7 units
The y dimension is from A to B
5 to -4 = 9 units
The area of a triangle is
A = 1/2 bh
A = 1/2 (7)(9)
= 31.5
Answer:
First one:
31.5 units²
Step-by-step explanation:
AB: 5 - (-4) = 9 units
BC: 3 - (-4) = 7 units
ABC is a right angle triangle with 90° at B
Base: BC
Height: AB
Area:
½ × base × height
½ × 7 × 9
31.5 units²
An amusement park has 18 attractions, including 8 arcades.
What is the probability that a randomly selected attraction at this amusement park will be an arcade
Answers
Answer:
8/18
Step-by-step explanation:
8 out of 18 attractions at the park are arcades, as stated.
hope this helps!
Bob wants to frame a picture. He needs to know how long to cut
the length and width of the wood for the frame. The length of the
picture is six inches more than the width. If the perimeter of the
picture is 108 inches, what are the length and the width of the
picture?
Answers
Answer:
Length = 30 inches
Width = 24 inches
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Perimeter of a rectangle (P) = 2 width + 2 length
Since:
Length (L) = width (w) + 6
Replacing with the values given:
108 = 2w+2 (w+6)
Solving for w:
108 = 2w+2w+12
108-12 =2w+2w
96 =4w
96/4 =w
w= 24 in
Replacing w in the length formula:
L = w+6
L= 24+6 = 30in
Feel free to ask for more if needed or if you did not understand something.
if b=5 what is b3 answer?
A) 15
B) 25
C) 75
D) 125
Answers
3x5 is 15
Answer:
D
Step-by-step explanation:
We are given
b^3
and
b=5
We are given what b is equal to, 5. Therefore, we can substitute 5 in for b
5^3
Evaluate the exponent. 5^3 is the same as multiplying 5, 3 times.
5*5*5
25*5
125
Therefore, D, 125 is the correct answer
Given these what is X if B-X=A
Answers
Answer:
B
Step-by-step explanation:
B-X=A
or
B-A=X
or
X=B-A
[tex]X=\left[\begin{array}{ccc}-5&-1&6\\4&1&2\\0&-3&2\end{array}\right] -\left[\begin{array}{ccc}-1&-2&3\\4&8&-6\\0&1&5\end{array}\right] \\=\left[\begin{array}{ccc}-5+1&-1+2&6-3\\4-4&1-8&2+6\\0-0&-3-1&2-5\end{array}\right] \\=\left[\begin{array}{ccc}-4&1&3\\0&-7&8\\0&-4&-3\end{array}\right][/tex]
Answer:
answer is B
Step-by-step explanation:
Combine the Expression: (2a + 8) + (4a + 5)
Answers
Answer:
6a +13
Step-by-step explanation:
(2a + 8) + (4a + 5)
Combine like terms
2a+4a +8+5
6a +13
Answer:
6a + 13
Step-by-step explanation:
1. simplify
(2a + 8) + (4a + 5)
2. Reorder the terms
(8 + 2a) + (4a + 5)
3. Remove parentheses
8 + 2a + 4a + 5
4. Combine like terms
8 + 5 = 13
2a + 4a = 6a
So, 6a + 13 is your answer.
Laura jogs at a rate of 2 miles every hour.
What is her unit rate?
A. 0.4 mi/hr
B. 2 mi/hr
C. 5 mi/hr
D. 10 mi/hr
Answers
Answer:
b
Step-by-step explanation:
Susan is asked to select 2 shapes at random out of a bag. The bag contains 3 triangles and 2
pentagons. She does not replace the first shape before selecting the second shape. What is the
probability that she chooses 2 triangles?
ASAP
Answers
Answer:
[tex]\frac{3}{5}[/tex]
there are five shapes total
3 triangles and 2 pentagons
sense there are 3 triangles she will have a probability of 3 over 5
What are ways that pioneer species differ from climax communities? Check all that apply.
Step-by-step explanation:
you add the total number of objects in this case shapes
and that is the denomantor
then what ever the object is in this case shapes that is your numerator
A brown-eyed father and a green-eyed mother have a 25% chance of having a green-eyed child. What is the probability that, in a family of four children, three of them have green eyes?
a. 0.421 875 c. 0.011 718 75
b. 0.046 875 d. 0.1875
Answers
can someone answer this I'll mark brainliest for the correct one i don't know what phrases they are talking about either so um yeah if someone could clarify that too that would definitely be the brainliest but you have to answer the original question too maybe these will help too the actual answers for some reason they change that....idk why but yeah, please answer
Answers
Answer:
Is this PSAT or where are u answering this question?
i’ll give 17 points for this!
Answers
Answer:
90
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
The reason why it is 90 because it looks like it is going in order so it would be 55 , 90 , 92 , 114
Hope i was to explain this real good Hope this is rightBrainliest plzWhat is the common difference between the terms in this arithmetic sequence? 8,15,22,29,36..
Answers
Answer:
7
Step-by-step explanation:
just subtract 7 from largest number down to smaller numbers to notice the pattern. :)
Which salt produces the least salt hydrolysis in an aqueous solution?
Answers
Answer:
Potassium Iodide
Step-by-step explanation:
KI (potassium iodide) is a salt of stable (not radioactive) iodine that can help block radioactive iodine from being absorbed by the thyroid gland, thus protecting this gland from radiation injury. The thyroid gland is the part of the body that is most sensitive to radioactive iodine.
I hope this helps. If you have any more questions, please feel free to post them and someone will be able to help you, whether it's myself or others. Please leave a like, rating, and if possible, Brainliest. Have a great day!
Part A. The tee shirts for the fundraiser will cost $10 to make and there is a $25 delivery fee to have the shirts delivered. 1) Write an expression to represent the student government’s total cost of ordering “t” amount of tee shirts. please helpppppp
Answers
Answer:
x=10t+25
Step-by-step explanation:
The delivery fee is 25 dollars and each shirt is 10 dollars
Your teacher is giving away candy from a bag. The bag contains 5 Reese's Peanut
Butter Cups, 4 Snickers, 3 Sour Patch, & 6 Skittles. Find the probability that you and
your friend choose Snickers. Find P(Snickers n Snickers).
Answers
Answer:
P(Snickers n Snickers) = [tex]\frac{2}{51}[/tex]
Step-by-step explanation:
Given
Bag of candy
5 Reese's Peanut Butter Cups,
4 Snickers
3 Sour Patch
6 Skittles
Required
Calculate P(Snickers n Snickers)
To solve this question, it'll be assumed that you and your friend selected snickers at a consecutive time.
First, we need to calculate the total number of candy
Total = 5 + 4 + 3 + 6
Total = 18 candies
P(Snickers n Snickers) means P(Snickers and Snickers);
i.e. the probability of selecting snicker twice
Number of snickers = 4;
So, the probability of you selecting a snicker first is [tex]\frac{4}{18}[/tex]
This is gotten by dividing number of snickers by total candies.
At this point, there are 4 - 1 snickers left and there are 18 - 1 candies left;
So, the probability of your friend selecting a snicker is [tex]\frac{4 - 1}{18 - 1}[/tex].
So, P(Snickers n Snickers) = [tex]\frac{4}{18}[/tex] * [tex]\frac{4 - 1}{18 - 1}[/tex]
P(Snickers n Snickers) = [tex]\frac{4}{18}[/tex] * [tex]\frac{3}{17}[/tex]
P(Snickers n Snickers) = [tex]\frac{2}{9}[/tex] * [tex]\frac{3}{17}[/tex]
P(Snickers n Snickers) = [tex]\frac{2}{3}[/tex] * [tex]\frac{1}{17}[/tex]
P(Snickers n Snickers) = [tex]\frac{2}{51}[/tex]
Hence, the probability of you and your friend choosing snickers is [tex]\frac{2}{51}[/tex]
Which number best represents the location of point A on the number line shown?
A) -7.5
B) 7 3/10
C) 7 3/8
D) 7 3/7
Answers
Answer:
7 3/10
pls mark!!!!!!!!!!!!!!
rewrite the equation of the circle (x-2)^2+y^2=3 in general form
Answers
Step-by-step explanation:
x²+4-4x+y²=3
x²+y²-4x+1=0
Answer:
?? Bro write the question better
Step-by-step explanation:
Please help me with this question I will mark you as the best answer
Answers
Answer:
2/3
Step-by-step explanation:
By counting the distance from point to point, I got 4 up, 6 to the right, aka 4/6
By simplifying it, I get 2/3!
Hope that helps!
Answer:
2/3 the second one
I hope this helps you
can you help me????????????
Answers
Answer:
120
Step-by-step explanation:
This shape is made out of two figures, a rectangle with sides 20 and 3.5 and a parallelogram with height 2.5 and base 20. 2.5*20+20*3.5=50+70=120 cubic centimetres. Hope this helps!
How does knowing the absolute value of an integer help in determining the distance of two ordered pairs?
Answers
The absolute value helps because when you the absolute value is the the distance of a number away from 0. Meaning that if your finding distance it will never be negative.
Finding the distance between the two is subtracting one of the numbers from each ordered pair from each other. Whether the number is negative or positive, you always turn it, or leave it into a positive number because distance is always positive.
Hope this helps !
The length of two sides of a right triangle are leg 12 M and hypotenuse 15 M find find the length of the third side
Answers
Answer:
9 M
Step-by-step explanation:
a^2+b^2=c^2
12^2+b^2=15^2
144+b^2=225
-144 -144
b^2=81
b=sqrt of 81
b=9
The area of a parallelogram 420 square cm and the height is 35 cm. Find the corresponding base.
Answers
Answer:
12
Step-by-step explanation:
420/35
12
12*35=420
Answer:
The corresponding base is 12 cm.
Step-by-step explanation:
The area of a parallelogram is calculated with the formula of A=bh, where b is the base and h is the height.
You can apply the problem to the formula:
420=b(35)
To solve, work backwards.
Divide 35 to both sides.
420 divided by 35 is 12
b=12
Hope this helps!
What is the surface area of the square pyramid represented by the net below?
Answers
Answer:
64 cm^2
Step-by-step explanation:
Square: 4*4 = 16
Triangles: 4((4*6)/2))
= 4(24/2)
= 4(12)
= 48
Add the square and triangles together
= 16 + 48
= 64
The total will be 64 cm^2
Answer: 64 cm2
Step-by-step explanation:
(x+4)−(x−1)
HELPPPP
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Answers
Answer:
There is no plug-in for x.
X=0.
(0+4) - (0-1) = [(4 - (-1)] = 5.
Answer:
5
Step-by-step explanation:
(x+4) -x +1
x - x = 0
5
