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4 years ago

PLEASE HELP! 36<8p+4<44 The solution set is__.

Mathematics

1 answer:

Nataliya [291]4 years ago

5 0

4<p<5
(4,5)
Open circles, not shaded.
Hope this helped!

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X + x2 - 5x -5 = 0 state the possible rational zeros and find all the zeros of the polynomial

Mariulka [41]

Answer:

The zeros of the polynomial are -1 and 5

Step-by-step explanation:

Quadratic Equation Solving

The standard representation of a quadratic equation is:

$ax^2+bx+c=0$

where a,b, and c are constants.

Solving with the quadratic formula:

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

We have the following equation to solve:

$x+x^2-5x-5=0$

Before attempting to solve it, we must simplify the equation.

Collecting like terms and reordering:

$x^2-4x-5=0$

Here: a=1, b=-4, c=-5

The discriminant of this quadratic equation is:

$d=b^2-4ac$

$d=(-4)^2-4(1)(-5)=16+20=36$

Given d is positive, the equation has two roots, and since d is a perfect square, both roots are rational.

Applying the formula:

$\displaystyle x=\frac{4\pm \sqrt{36}}{2(1)}$

$\displaystyle x=\frac{4\pm 6}{2}$

Dividing by 2:

$x=2\pm 3$

Separating both roots:

x = 2 + 3 = 5

x = 2 - 3 = -1

The zeros of the polynomial are -1 and 5

8 0

3 years ago

What is the rate of change of this function?

Fittoniya [83]

Answer:

21/4

Step-by-step explanation:

Rate of change also means slope.

Pick any two points, for example (8,167) and (12, 188)

Now use the formula y2-y1/x2 - x1 to find slope

188 - 167/ 12 - 8

21/4

The rate of change is 21/4, note you would NOT convert the fraction into to a decimal until your teacher specifies you to.

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4 years ago

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What is the approximate value of ..

postnew [5]

Answer:

A: 3,600

Step-by-step explanation:

Hopefully this helps!

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3 years ago

Last year, all purchases of a certain product were made either online or in a store. If 55 percent of the purchases were made on

emmasim [6.3K]

55/44. or simplified to be 5/4.

Hope this helps!

8 0

3 years ago

Horace buys 2/4 pounds of blueberries for a pie he needs 48 ounces for the pie how many more pounds of blueberries does he need

Ratling [72]

So, 2/4 pounds of blueberries reduced is 1/2 pound of blueberries. There 16 ounces in a pound and 8 ounces in 1/2 a pound. He only bought 8 ounces of blueberries and he needs 48. Subtract 8 ounces that he already has from 48 ounces that he needs and get 40 ounces.

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4 years ago

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