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3 years ago

Evaluate the expression P(6,1)

Mathematics

1 answer:

klasskru [66]3 years ago

5 0

Answer:

p(6,3)=120

Step-by-step explanation:

In the pic is how to do it

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What is the answer to the question 25% of what is 21?

g100num [7]

If we call the number "x" then:
x*25%=21
x*25/100=21
x=21*4
x=84

Hope this helps. :)

8 0

3 years ago

Read 2 more answers

Ciara buys 7 lb of strawberries for $5.81. How much would she spend if she wanted 15 lb of strawberries?

wlad13 [49]

by multiplication of 15 and 5.81 answer is the

87.15

8 0

3 years ago

Read 2 more answers

Solve for x in the equation.

labwork [276]

Answer:

The solution is $\displaystyle x=1\pm \sqrt{47}$ . Fourth option

Explanation:

Solve for x:

$2x^2+3x-7=x^2+5x+39$

Move all the terms from the right to the left side of the equation, a zero in the right side:

$2x^2+3x-7-x^2-5x-39=0$

Join all like terms:

$x^2-2x-46=0$

The general form of the quadratic equation is:

$ax^2+bx+c=0$

Solve the quadratic equation by using the formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

$\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}$

$\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}$

$\displaystyle x=\frac{2\pm \sqrt{188}}{2}$

Since 188=4*47

$\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}$

Take the square root of 4:

$\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}$

Divide by 2:

$\displaystyle x=1\pm \sqrt{47}$

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0

3 years ago

Is the square root of 3 rational or irrational

enyata [817]

Answer:

The square root of three is irrational.

Step-by-step explanation:

3 0

3 years ago

Y + 1 1/6 = 7 5/6 what is Y

AfilCa [17]

Answer:

6 $\frac{2}{3}$

Step-by-step explanation:

y + 1 $\frac{1}{6}$ = 7 $\frac{5}{6}$

y + $\frac{7}{6}$ = $\frac{47}{6}$

y = 40/6 = 20/3 = 6 $\frac{2}{3}$

3 0

3 years ago