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MATH SOLVE
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A class has 28students. The ratio of girls to boys is 4:3. How many girls are in the class?
General
2 months ago
You currently have $5000 in a savings account that pays 6% interest per year. Interest is compounded monthly. You add another $200 each month. What do you have on your savings account after five years, and what is the total interest earned during these five years?
General
2 months ago
What is the coefficient of x^8 y^2 in the expansion of (x + y)^10?
General
2 months ago
You must calculate the number of sheets of plywood needed for subflooring. Each sheet of plywood measures 4'by 8. The measurements of the house are 28 by 30' and there is a 12 by 4' hole for the stairs to come up from the basement. How many sheets of plywood will be needed? Round up to the nearest sheet
General
2 months ago
A salesperson is paid a weekly salary of $1000, plus a commission of 5% of all her sales for the week.A) Express her weekly income in terms of the weekly sales amount.B) Is this a function?C) How do you know?D) What is an appropriate domain?
General
2 months ago
B-2-11. Find the inverse Laplace transform of s + 1/s(s^2 + s +1)
General
2 months ago
A patient is given a solution containing 0.625 g of calcium carbonate. If the calcium carbonate solution contains 1250 mg per 5 mL, how many milliliters of the solution were given to the patient?
General
2 months ago
Balance the given chemical equation. Potassium superoxide and carbon dioxide react to form potassium carbonate and oxygen:KO2 + CO2 → K2CO3 + O2(Write the reaction in the form x1KO2 + x2CO2 → x3K2CO3 + x4O2, and solve for x1, x2, x3, and x4.)
General
2 months ago
Find a polynomial of the formf(x) = ax3 + bx2 + cx + dsuch that f(0) = −3, f(1) = 2, f(3) = 5, and f(4) = 0. (A graphing calculator is recommended.)
General
2 months ago
Find all solutions by transforming the system to reduced echelon form and back substituting. (If there are an infinite number of solutions use s1 as your parameter. If there is no solution, enter NO SOLUTION.)2x1 + x2 = 2−x1 − x2 − x3 = 4
General
2 months ago
You received a $100 gift certificate to a clothing store. The store sells T-shirts for $12 and dress shirts for $21. You want to spend no more than the amount of the gift certificate. You want to leave at most $7 of the gift certificate unspent. You need at least two dress shirts. What are all of the possible combinations of T-shirts and dress shirts you could buy?
General
2 months ago
An architect finds some unlabeled dimensions on a blueprint, and no scale is shown. A 14-foot wall that has already been built measures 2 inches on the drawing. A new wall that has to be built measures 6 inches on the drawing. How long will the new wall be? A. 7 ft. B. 28 ft. C. 42 ft. D. 84 ft.
General
2 months ago
Tyler goes to the store. His budget is $125. Which inequality represents x, the amount in dollars Tyler can spend at the store?
General
2 months ago
Someone please help Me! Solve each system of equation. I need help I don’t understand and this is due tomorrow. I’ll make brainliest if I can and 20points
General
2 months ago
an orchard has 960 apple trees. the number of rows exceeds the number of trees per row by 2. how many trees are there in each row?
General
2 months ago
Which expression represents the sum (3z−11)+(6−6z) ?
General
2 months ago
The graph shows one of the linear equations for a system of equations. Which equation represents the second linear equation for the system of equations that has the solution (3/4, 5\6)?A) 2x - 3y = 4 B) 2x + 3y = -4 C) 2/3x + 3y = 3 D) 2/3x - 3y = 3
General
2 months ago
As part of an exercise regimen, you walk 8 miles on an indoor track. Then you jog at twice your walking speed for another 8 miles. If the total spent walking and jogging is 3 hours, find the walking and jogging rates
General
2 months ago
After an antibiotic tablet is taken, the concentration of the antibiotic in the bloodstream is modelled by the function C(t)=8(e^(-0.4t)-e^(-0.6t)) where the time t is measured in hours and C is measured in mewg/mL.What is the maximum concentration of the antibiotic during the first 12 hours?
General
2 months ago
A company is making building blocks. Each building block is a cube and has volume 125/729 ft cubed . How long is each side of the building blocks?
General
2 months ago
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