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2 years ago

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x??

Mathematics

1 answer:

azamat2 years ago

6 0

$x^2-2x+20=0\implies D=b^2-4ac$ .

There are no real solutions to the quadratic equation.

Hope this helps.

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What is the value of A when we rewrite... (PLZ HELP QUICK)

Marina86 [1]

Answer:

Step-by-step explanation:

Given,

${( \frac{5}{2} )}^{x} + {( \frac{5}{2} )}^{x + 3}$

$= {( \frac{5}{2}) }^{x} + {( \frac{5}{2}) }^{x} \times {( \frac{5}{2} )}^{3}$

$= ( \frac{5}{2} ) ^{x} (1 + {( \frac{5}{2} )}^{3}$

$= {( \frac{5}{2} )}^{x} (1 + \frac{125}{8} )$

$= {( \frac{5}{2} )}^{x} ( \frac{1 \times 8 + 125}{8} )$

$= {( \frac{5}{2}) }^{x} ( \frac{8 + 125}{8} )$

${( \frac{5}{2} )}^{x} ( \frac{133}{8} )$

Comparing with A • ${( \frac{5}{2}) }^{x}$

A = $\frac{133}{8}$

Hope this helps...

Good luck on your assignment...

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2 years ago

After spending 5/9 of his money, David has<br>$36 left. How much money did he have at first?

liq [111]

81 dollars at first

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2 years ago

What is the solution to the equation |2x+3|+5=12

notsponge [240]

You can write it either way.

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3 years ago

a nut mixture of peanuts and macadamia nuts at a small fair is $1.00 per pound of peanuts and $3.26 per pound of macadamia nuts.

Studentka2010 [4]

This answer seems really hard but just don't overthink it. You pretty much don't have to do any math. It took me forever to do this because I was thinking so hard but i re-read it and the answer was right infront of me.

1.00p + 3.26n = $248.52

6 0

3 years ago

Read 2 more answers

Is 2/3 greater than 4/8

MArishka [77]

Find a common denominator to begin. The common denominator is the LCM of both denominators. In this case, the common denominator will be 24.

Now, multiply the numerator by the number you multiplied the denominator. For 2/3, you multiplied 3 by 8, so multiply 2 by 8 to get 16. The fraction is now 16/24. Multiply 4 by 3 since you multiplied 8 by 3 to get 24. You will get 12 and the fraction will become 12/24.

Then, compare. 16/24 is closer to 24/24, or one whole, so 16/24, or 2/3, is greater.

4 0

3 years ago

Read 2 more answers