x2+ax+1=0 and x2+x+a=0 have roots. What is the value of a?

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x2+ax+1=0 and x2+x+a=0 have roots. What is the value of a?

Three boys stood on a scale and put a nickel in the slot. The scale showed 390 pounds as their total weight. One boy stepped off the scale. It then showed 255 pounds. The second boy stepped off the...

a metal alloy weighing 1 oz and containing 80% nickel is melted and mixed with 3 oz of pure nickel. what percent of the r

I have never been good with word problems. This one has me stumped.

statistics question plz help me solve i dont understand and plz explain in steps

Sergio has decided to diversify his investments in the following way: $4,000 in an account earning 3.2% simple interest $4,000 in a savings account earning 2.1% interest compounded annually $7,500...

x-2y=3 2x-3y=9

A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze and the second brand is 70% pure antifreeze. In order to obtain 150 gallons of a mixture that contains 55%...

trignometry question

1. Shays’s Rebellion: A. spread to several northern states B. was supported by George Washington and other elite figures C. was repressed by state militia D. resulted in massive...

=-2pi<=x<2pi =the real numbers

Please help

7kx^2-2x+3=0 find for two solutions write answer as an inequality this question is highly confusing to me

Find the sum of an eight term geometric sequence when the first term is seven and the last term is 114,688.

We know 0!=1 & 1!=1 . So 0!=1!, Here its seen that The value of 0 & 1 is Same. But this is Wrong. There must be difference between the Value of 0 & 1. There what value do they...

find values for no solution and write answer as an inequality 3x^2+3x+k=0

a metal alloy weighing 1 oz and containing 80% nickel is melted and mixed with 3 oz of pure nickel. what percent of the r

A comet moves with a distance from the sun at perihelion and aphelion are x and (x+Δx). Determine length of orbital major axis.

An object fall from planet x with a=4,9 m/s2. The radius of planet X is 0,8 times earth radius. Find the mass of planet X compare to earth.

13 and 31 is a strange pair of numbers such that their squares 169 and 961 are also mirror images of each other. Find some more such pairs.

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