08/11/22

math for educators

Students sometimes mistakenly think that the expression 4x–x is equivalent to 4. Why might a student make such a mistake? Use Algebra tiles to explain why this is not correct and show another... more
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08/11/22

Number of girls: 14 Number of boys: 12 Number of students in the class: 26 What is the ratio in simplest form of the number of boys to the number of students in this math class?
for a quiz due in ten min
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08/11/22

Sarah painted 5/9 of a wall. Alex painted 3/7 of a wall, if their paintings did not overlap, how much of the wall was left to be painted?
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08/11/22

Monte-Carlo estimating circle
suppose that the equation of a circle is(x - 3)^2 + (y + 2)^2 = 16A) define the corresponding distribution f(x) and f(y) and show how a sample point (x,y) is determined using the (0,1) random pair... more
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08/11/22

please help due in 30 minutes
The polynomial of degree 4, P(x)P(x) has a root of multiplicity 2 at x=1x=1 and roots of multiplicity 1 at x=0x=0 and x=−3x=-3. It goes through the point (5,448)(5,448).b=c=Submit QuestionQuestion 1
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08/10/22

Why is Repetition SO Important?

"No one is born with skill. It is developed through exercise, through repetition, through a blend of learning and reflection that's both painstaking and rewarding. And it takes time." - Twyla Tharp
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08/10/22

Can someone help me figure out the wavelength of a gamma ray with a frequency of 1.0 x 10^19 Hz?
I can't figure it out, have tried and tried. I know that c + 3.0 x 10^8 Hz, What I can't figure out isw what the two question marks are in ? x 10 ^ ? mI thought it was 3, -9Any help would be... more
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08/10/22

When 3 times a number is subtracted from 5 the absolute value of the difference is at least 7. Use interval notation to express the set of all numbers that satisfy this condition
math problem
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08/10/22

X and Y variables
Use the given information to find the unknown value.y varies directly as the cube of x. When x=3, then y=5. Find y when x=4. Enter the exact answer.
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08/10/22

Mean Value Theorem

Consider the function f(x)=4√x+4f(x)=4x+4 on the interval [3,5][3,5]. Find the average or mean slope of the function on this interval.By the Mean Value Theorem, we know there exists a cc in the... more
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08/10/22

if <A and <B form a linear pair, and m<A=x-21 degrees, and m<B =x+15 degrees, then find x
if <A and <B form a linear pair, and m<A=x-21 degrees, and m<B =x+15 degrees, then find x
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08/10/22

A garden is 3 yards 12 inches wide and 5 yards long. Write the ratio of the width to the length as a fraction in simplest form.
help
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08/09/22

Algebra one solving written equatio

What is 8 times the difference of a number and 3 is 40
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08/09/22

rate of change for base of triangle
The altitude of a triangle is increasing at a rate of 3.5 centimeters/minute while the area of the triangle is increasing at a rate of 2.5 square centimeters/minute. At what rate is the base of... more
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08/09/22

Can someone please help me with this homework problem? I would really appreciate the help!

Question: A justice writes: “I am not sure of the original intent of the Constitution’s framers, but my decision is based solely on the actual words of the Constitution.” Which best describes that... more
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08/09/22

Help please!! PEMDAS *Order of operations
All the 8th graders at a Middle School will go on a field trip to the science museum. The bus will carry the students, teachers, and parent volunteers. There are 9 classes of 25 students each, 4... more
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08/09/22

Find b and c so that y =2x power 2 +bx+c has a vertex (-9,5)
Find b and c so that y =2x power 2 +bx+c has a vertex (-9,5)
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08/09/22

HELP!!!!!!!!!!!!!
You are making an open box from a rectangular sheet of cardboard by cutting squares 2inches in length from each corner and folding up the sides. The length of the sheet of cardboard is 8 inches... more
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08/09/22

algebra one i dont know what to type here lol
Quinn mailed four postcards that each cost $0.25, five letters that each cost $0.44, two large envelopes that each cost $0.80, and one small package for $5.10. Which cost on the list of mailing... more
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08/09/22

It is given that s is directly proportional to t. When t=5, s=40. Express s in terms of t.

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08/09/22

i dont understand :(
The height of a projectile fired upward is given by the formula s = v0t − 16t2, where s is the height, v0 is the initial velocity, and t is the time. Find the time for a projectile to return to... more
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08/09/22

how to create a visual model (x+3)^2
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08/09/22

Find the slope-intercept form of the equation of the line that has the given slope m and passes through the given point. m = 5, (1, −4)
How to solve an algebra word problem?
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08/09/22

Find the slope-intercept form of the equation of the line that has the given slope m and passes through the given point. m = 8, (0, −4)
This is a solution to a slope-intercept word problem that can look scary at first.
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08/09/22

Solving Trigonometry Functions
Rewrite the expression as an algebraic function of x and y.sin(cos−1 x − tan−1 y)
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