03/26/20

Use Gaussian elimination and a matrix with row operations to solve the system. Give the value of y.
-2x + 3y - z = -92x + y - 2z = 22x - 2y - z = 11
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03/21/20

Calculus Question:

Find the absolute minimum and absolute maximum values of f on the given interval.f(x) = x − ln 4x, [1/2, 2]Absolute Max:Absolute Min:
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03/19/20

Unit 3 Exam Review
The height of the triangle is 11 inches longer than its base. The area of the triangle is 40 inches squared. How long is the base of the triangle?
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03/19/20

on the directed segment (1,8) to (5,0) find the point on the segment that divides into a ratio of 3:1
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03/19/20

What is the area of a sector that has a radius of 25 mm and has an angle measure of 50°?
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03/19/20

What is 7/10 of d minus 1 times d?
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03/18/20

PLEASE HELP! NEED HELP WITH GEOMETRY HOMEWORK!
Identify the area of the figure rounded to the nearest tenth. Please give the explanation and the answer. thank you.
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03/15/20

PLEASE PLEASE HELP ME! NEED HELP WITH GEOMETRY HOMEWORK!
Find the magnitude and direction of the vector < 2,7>. Round angles to the nearest degree and other values to the nearest tenth. Please Give me the Explanation and the Answer.
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03/15/20

Write each expression using a positive exponent? n^-8
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03/15/20

can u Write the fraction as an expression using a negative exponent other than –1 for me plz? 1/15^6
1--------- 6 15
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03/13/20

Bbbbbbbbbbbbb. B
A person can do a job in 6 days. Another can do the same job in 4 days. If they work together, how long do they need to finish the job?
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03/13/20

precalc Question
Find the smallest positive angle coterminal with 400°. 760° 220° 580° 40°
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03/13/20

Pre-calc Question
Find the smallest negative angle coterminal with 2π/3 and use radian measurea. -π/3b. -2π/3c. -3π/2d. -4π/3
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03/12/20

Is my answer correct?
Solve the system:x2 + y2 = 2892x2 - y2 = 143The solutions will have the form (± a, ± √b)What is b? (A) 17(B) 145(C) 3(D) -37(E) None of the aboveFor this I got; (B) 145. Is my answer correct?
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03/11/20

Can anyone please explain how I got this question wrong?
Simplify: (xb-3y3b)/(xb/3yb+3)(A) x(4/3)(b-3)y4b-3(B) x(3b-9)/(b)y(3b)/(b+3)(C) (xyb^2 -9)b^2(D) x-3+(2b)/(3)y-3+2(E) None of theseFor this I got; (E) None of these, but the answer is incorrect.... more
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03/11/20

I need this answered today please!
On a certain hot​ summer's day, 440 people used the public swimming pool. The daily prices are $ 1.25 for children and $ 2.50 for adults. The receipts for admission totaled $ 630.00. How many... more
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03/11/20

Calculating rates with derivatives

A light shines toward the ground from the top of a building wall that is 40 ft high. A kid in a tree house that is 25ft to the right of the building drops an apple from the same height (40 ft). How... more
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03/11/20

Geometry homework

Find the arc length of a swing set swing, if the chain is 8 feet long and the maximum angle you can swing is 90 degrees.A. 2π ftB. 3π ftC. π FtD. 2 π ft
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03/09/20

The​ half-life of radium is 1690 years. If 50 grams are present​ now, how much will be present in 660 ​years?
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03/08/20

For what value of n is ln −1l +1 equal to 0 ?
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03/08/20

Quiz question help me
Given that D-E-F on DF, name the property that leads to the conclusion DE + EF = DF
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03/06/20

Determine the quadratic function
Determine the quadratic function f whose graph is given.The vertex is (1,-4) and the other given point is (2,-2).Answer f(x)=
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03/06/20

how many different family night possibilities are there? (info in description - pls help!!!)
Can someone please help me with this question? I don't understand how to do it and my teacher explained it but it still makes no sense to me. If it helps, we have been using permutations etc on the... more
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03/06/20

Roots of an equation
If the roots of the equation x^2 + 6x + c = 0 differ by 2n, where n is not = 0, prove that n^2 = 9 - c.
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03/06/20

Algebra age question
four years ago the father's age was three times the age of his son the total of the ages of the father and son after 4 years will be 64 years what is the father's age at present
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