Mathematics

8th grade math problem help? THANKS GOD BLESS YOU ALL

The slashes mean radical signs (square root signs) 1. /75 + 2/27 - /12-√75 + 2√27 -√12 first, try to take terms out of the radical: (√25 x √3) + (2√9 x √3) - (√4 x √3) 5√3 + 2(3)√3 - 2√3 5√3 + 6√3 -

How to construct a right triangle with legs of m and 2m

Using only a compass, and Im not saying just measure them, okay? Like using a straight edge and drawing circles and stuff... xD-(using graph paper) Assuming m is any length, mark m on x axis. Now, go

Can you tell me if I got these right

If I didnt,can you let me know what I did wrong/how to do it? *Evaluate3x - 2y³- IaIx= 4,y= -2,a= -1 3(4) - 2(-2)³ - I-1I 3(4) -2(-8) -1 12-16-1 = -5 *A=1/2h(B+b)A=180,B=11,b=7 180=1/2h(11+7) 180

Use cylindrical or spherical coordinates to evaluate triple integral

Use cylindrical or spherical coordinates to evaluate the triple integral ∫ ∫ ∫zdVwhere V lies above the paraboloid z=x^2+y^2 and below the plane z=6y... Really struggling with this one, thanks xx-Use

Compounding and geometric sequences

Im having a great deal of trouble with this problem: What will an investment of $100,000 amount to after 5 years if it earns 8% interest compounded twice annually? Could someone please walk me thro

Hyperbolic function help

If anyone can explain these, I would appreciate it. They are pretty basic but I dont get them. If anyone knows any or all, would be much appreciated. Numerical value of: tanh(1)cosh(ln3)sech(0)Provin

Summation problem to the fourth power

The problem i have to solve is this. Limit as N goes to infinity of 5/N(the summation from j=1 to N of (j/N)^4)... I think i can simplify that to 5/(N^5)(the summation from j=1 to N of j^4) .... But

How do i factor this expression

1/8x^2 - 13/168x - 5/42 one eighth xsquared - thirteen over one hundred sixy eight x - 5/42 thank you;( ten points-(1/8) x^2 - (13/168) x - 5/42 8 = 2^3 168 = 4 • 42 = 2^3 • 6 • 7 42 = 6 • 7 = 2 •

More Math Problems 'cause I suck at easy math

Please answer the following because I dont trust my calculator to check my stupid people math answers: Problem one: 2*3-2*6+14 divided by 7. (the stars * are multiplication signs..also please show HOW

I have done all my math homework but I need help with these two questionss please

1. It says x^2+2x+1=0 ... i know you have to do that adding multiply thing but it just doesnt work out .. i have a feeling this cannot work and that its a typo .. help ?? other Problem: √75 .. and t

Please help with cost problem !!!!

A company dedicated to the manufacture of chemicals had a spill of a chemical contaminant in a local river, has been determined by the department of waste management in conjunction with the department

PLZ HELP ME FAST!! How to get 6 with 1 and 2

How to get 6 with numbers 1 and 2? You can use each of them only once but you can use any mathematics operation to get 6. Does anyone know how to do it??-(1+2) ! where ! means factorial 1+2=3 and 3!

In triangle ABC, angle C is a right angle, AB = 55, and BC = 30. Find angle B.

Please help me and explain.. I really dont understand. Thank you!-angle b=arccos(30/55) which is about 56.94 degrees

How to integrate this u substitution

the integral of cube root of x^3 + 5 times x^5-∫³√(x³+5) *x⁵ dx= =∫³√(x³+5) *x³ * x² dx= =(1/3)∫³√(x³+5) *x³ d(x³)= =(1/3)∫³√(x³+5) *x³ d(x³+5)= Let v=x³+5 =(1/3)∫³√v *(v-5) dv= =(1/3)∫v^(1/3+1) - 5v^

What is a defining characteristic about the slopes of parallel lines

What is a defining characteristic about the slopes of parallel lines?-They are equal. If two lines are parallel, their slopes are equal.-If theyre parallel, they have to have the same slope.