12/15/23

∆PQR was reflected and then dilated by a scale factor of 4 to create ∆P''Q''R''. Which statement explains why ∆PQR is similar to ∆P''Q''R''?
 Reflections and dilations preserve side length; therefore, the corresponding sides of ∆PQR and ∆P''Q''R'' are congruent.  Reflections and dilations preserve angle measure; therefore, the... more
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12/15/23

Triangle JKL is reflected over the y-axis and then dilated by a scale factor of 2 centered at the origin. Which of the following statements describes JKL and J''K''L'' after the transformations?
Triangle JKL is reflected over the y-axis and then dilated by a scale factor of 2 centered at the origin. Which of the following statements describes the properties of triangles JKL and J''K''L''... more
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12/15/23

∆ABC was transformed according to the rule (x, y) → (−y, x) to create ∆A'B'C'. What transformation justifies the relationship between the triangles?
 A translation 1 unit to the left and 1 unit upward justifies ∆ABC ~ ∆A'B'C'.  A reflection over the y-axis justifies ∆ABC ~ ∆A'B'C'.  A rotation of 90° clockwise justifies ∆ABC ≅ ∆A'B'C'.  A... more
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12/15/23

What are the coordinates of E' that will justify ∆DEF ~ ∆D'E'F'?
∆DEF ∆D'E'F' D (0, 0) D' (0, 0)E (3, 2) E' (x, y)F (7, 6) F' (14, 12) (-2,1) (6,9) (8,20) (20,28)
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12/14/23

Suppose you want to find sqrt(49.08). The line tangent to the graph of y= sqrt(x) at x=49 will have equation y =  
Suppose you want to find sqrt(49.08)The line tangent to the graph of y= sqrt(x) at x=49 will have equation y =  This meanssqrt(x) ≈  _____Consequently sqrt(49.08) ≈  
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12/14/23

is there a value for h that makes it possible for the equation \sqrt(x+h)+5=0 to have any real number solutions?
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12/13/23

Page problem math
Stephanie began reading her library book at the top of page 7. She finished reading at the bottom of page 33. How many pages did she read?
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12/12/23

Graph the system below and write its solution.
−6x-2y=0y=−3x-2Note that you can also answer "No solution" or "Infinitely many" solutions.
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12/11/23

The Dot Product
Find a value of b so that 20i-5j and -2i+bj are orthogonal
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12/08/23

nth distinct root
How do I show (1+i)^n = -9 algebraically and graphically.I figured out that polar form form 1+i. Not sure what to do with -9sqrt 2^p(cos (p⋅45°)+ i sin (p⋅45°).please show work
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12/08/23

Pre-cal with Algebra
A ball is thrown upward and outward from a height of 6 feet. The height of the ball, 𝑓(𝑥), in feet, can be modeled by 𝑓(𝑥) = −0.6𝑥^2 + 2.7𝑥 + 6 where 𝑥 is the ball’s horizontal distance, in feet,... more
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12/08/23

Pre-cal with Algebra
A ball is thrown upward and outward from a height of 6 feet. The height of the ball, 𝑓(𝑥), in feet, can be modeled by 𝑓(𝑥) = −0.6𝑥^2 + 2.7𝑥 + 6 where 𝑥 is the ball’s horizontal distance, in feet,... more
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12/08/23

Understanding the algebra problem
A ball is thrown upward and outward from a height of 6 feet. The height of the ball, 𝑓(𝑥), in feet, can be modeled by 𝑓(𝑥) = −0.6𝑥^2 + 2.7𝑥 + 6 where 𝑥 is the ball’s horizontal distance, in feet,... more
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12/08/23

Understanding the algebra problem
A ball is thrown upward and outward from a height of 6 feet. The height of the ball, 𝑓(𝑥), in feet, can be modeled by 𝑓(𝑥) = −0.6𝑥^2 + 2.7𝑥 + 6 where 𝑥 is the ball’s horizontal distance, in feet,... more
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12/07/23

If the line represented by y = 1/2x - 3 is dilated by a scale factor of 4 centered at the origin, which statement about the image is true?
If the line represented by y = 1/2x - 3 is dilated by a scale factor of 4 centered at the origin, which statement about the image is true?
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12/07/23

Email addresses for parent and child
Hi: I am wondering if it is possible for both my daughter and I to receive emails?Thank-you,Jill
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12/07/23

Optimization Calculus
a piece of wire of length 16cm is divided into 2 parts, one forms a circle and the other forms an isosceles right triangle. How should the wire be cut so that the area is maximum minimum
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12/07/23

A theater charges $49 for adult tickets and $29 for each student tickets. One Saturday night, it sold 450 tickets. The total ticket sales that night were $16,050. How many student tickets were sold?
i need help on this question
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12/07/23

Solve the problem. Round answers to the nearest tenth.
A parallelogram has sides of lengths 10.3 cm and 23.2 cm, and one of the angles is 54.2°. Find the area of the parallelogram. A tower 23.5 m tall makes an angle of 110.2° with the inclined road on... more
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12/07/23

A principal of $3500 is invested at 8.5% interest, compounded annually. How many years will it take to accumulate $7000 or more in the account?

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12/06/23

pre calculus 12 grade
Given three functions below, which expression equals ( s o h o v) ( x)?h(x)= 2x^3, s(x)= square root of x-5, v(x)= I3xI
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12/06/23

i need help solving this
This exercise uses the exponential growth model.It is observed that a certain bacteria culture has a relative growth rate of 15% per hour, but in the presence of an antibiotic the relative growth... more
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12/06/23

Question for homework
The dimensions of a rectangle are dilated using a scale factor of 5/8 What is the relationship between the new area and the original area? Fill in the blank. The new area is blank times greater... more
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12/05/23

ind the angle 𝜃 (in degrees) between the vectors. (Round your answer to two decimal places.)
u= 3i + 4jv= -7i + 5j𝜃 =
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12/05/23

Solve the system by the method of elimination. (If there is no solution, enter NO SOLUTION. If the system is dependent, enter a for x and enter y in terms of a.)
25x - 5y = -15-5x + y = 3 (x,y)=
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