11/28/23

compound interest 7th grade

karen bought a pair of shoes for $350. she charges them to her credit card which charges a 15% compound interest rate. how much will karen owe for the shoes at the end of 2 years?
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11/28/23

proposition: the sum of the n least, positive, odd, integers is n^2. Which is the equation form of this?
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11/28/23

how to answer this question
Helena can buy 2 shirts for $25 or 3 shirts for $36. Do these quantities have a proportional relationship? Explain
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11/27/23

​Combined, there are 187 ​Asians, Africans,​ Europeans, and Americans in a village.

The number of Asians exceeds the number of Africans and Europeans by 81. The difference between the number of Europeans and Americans is 12. If the number of Africans is​ doubled, their... more
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11/27/23

A stone is dropped from the upper observation deck of a tower, 100 m above the ground. (Assume g = 9.8 m/s2.)
(a)Find the distance (in meters) of the stone above ground at time t.s(t) =  (b)How long does it take the stone to reach the ground? (Round your answer to two decimal places.)_ s(c)With what... more
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11/27/23

Based on the data shown below, calculate the correlation coefficient (rounded to three decimal places)
x y3 15.934 15.945 17.456 19.567 19.678 20.98
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11/27/23

how is the graph of f(X)=x transformed to obtain the graph of g(x)=x-6
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11/26/23

Write an equation in slope-intercept form given the values f(0)=7 and f(3)=12
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11/26/23

equation of a line with a slope of ZERO that passes through the point (-2, 12)
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11/26/23

Find the dimensions of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabola y=6-x² . Width = Height =

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11/26/23

Calculus question
A box is to be made out of a 8 by 14 piece of cardboard. Squares of equal size will be cut out of each corner, and then the ends and sides will be folded up to form a box with an open top. Find the... more
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11/25/23

Logarithm question

(5 - √3) / √(7 - 4√3 ) = P + √QFind the value of of Q- P
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11/24/23

Finding the total

a book sold 35, 600 copies in its first month release. Suppose this represents 8.2% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest... more
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11/24/23

Finding the total amount
an international company has 17,700 employees in one country. if this represents 34.7% of the company's employees does it have in total? Round to the nearest whole number.
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11/24/23

Find an equation for a Parabola

Find an equation for the parabola that has its vertex at the origin and directrix x=−10. If your answer is in the form x^2=Ay, then input here: A= 40y??if your answer is in the form y^2=Ax, then... more
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11/24/23

Finding the total amount given
an international company has 17,700 employees in one country. if this represents 34.7% of the company's employees does it have in total?
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11/24/23

I need help with tri-inequality.
Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 388 with 78% successes. Enter your answer as a tri-linear inequality using... more
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11/24/23

Statistics Homework
In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $49 and standard deviation of $20. Construct a... more
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11/24/23

Statistics Homework

You wish to test the following claim (Ha) at a significance level of α=0.005.      Ho:μ=58.6       Ha:μ≠58.6You believe the population is normally distributed, but you do not know the standard... more
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11/24/23

I don't understand how to do these questions. it's a lot of questions that I keep getting wrong.
f(x) = 3x+5 and g(x) = 3x^2 +3x After simplifying: (f o g )= f(x) = 7x+7 and g(x) = 3 - x^2 Calculate: a. f (g(0))= b. g (f (0))=f(x) = x^4 +2, g(x) = x-9,... more
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11/23/23

Statistics Homework
In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and standard deviation of $4. Find the margin of... more
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11/23/23

Statistics Homework
In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $44 and standard deviation of $17. Construct a... more
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11/23/23

how do you write a logarithm as the sum or difference of logarithms.
example 1: ln(e3x2/3√y)example 2: log (100/(x2-y2)5
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11/23/23

how do you solve an equation using Q(t)=Qoe^kt

The half-life of a radioactive substance is 8.93 years. If 6 grams of the substance is present now, how much will be present in 15 years?
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11/22/23

algebra word problem
If a 20-meter flagpole casts a shadow that is 50 meters long, how long is the shadow cast by a tree that is 36 meters high?
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