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Elena L [17]
4 years ago
13

Does (-1,8) make the equation y= -8x true?

Mathematics
1 answer:
lisabon 2012 [21]4 years ago
4 0

Question: Does (-1,8) make the equation y= -8x true?

Answer:

Yes!

Explanation: You just need to plug in the values. The equation is y = -8x and we want to know if (-1, 8) is a point on the line. So, you take (-1, 8) and plug it into the equation. 8 = -8(-1)

A negative times a negative equals a positive. So -8*-1 = 8

(-1, 8) would make the equation true.

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Use the Rational Zero Theorem to list all possible rational zeros for the given function. f(x) = 10x^5 + 8x^4 - 15x^3 +2x^2 - 2
vagabundo [1.1K]

Given:

The function is:

f(x)=10x^5+8x^4-15x^3+2x^2-2

To find:

All the possible rational zeros for the given function by using the Rational Zero Theorem.

Solution:

According to the rational root theorem, all the rational roots are of the form \dfrac{p}{q},q\neq 0, where p is a factor of constant term and q is a factor of leading coefficient.

We have,

f(x)=10x^5+8x^4-15x^3+2x^2-2

Here,

Constant term = -2

Leading coefficient = 10

Factors of -2 are ±1, ±2.

Factors of 10 are ±1, ±2, ±5, ±10.

Using the rational root theorem, all the possible rational roots are:

x=\pm 1,\pm 2,\pm \dfrac{1}{2}, \pm \dfrac{1}{5},\pm \dfrac{2}{5},\pm \dfrac{1}{10}.

Therefore, all the possible rational roots of the given function are \pm 1,\pm 2,\pm \dfrac{1}{2}, \pm \dfrac{1}{5},\pm \dfrac{2}{5},\pm \dfrac{1}{10}.

5 0
3 years ago
I need help please and thank you
Sidana [21]

Answer:

135

Step-by-step explanation:

L*W*H

5*9*3=135 I think so I May be wrong

3 0
4 years ago
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Write an integer for each situation. 3 miles below sea level u may solve the other ones?
Evgen [1.6K]

"3 miles below sea level" may be written as -3. The negative indicates you are below sea level. Going above sea level means the value would be positive.

"earning 45 dollars" can be written as +45 or simply 45. If you lost 45 dollars, then it would be -45. If you are in debt 45 dollars, then it would be -45.

"moving back 5 spaces" is represented by -5 whereas moving forward 5 spaces is +5 or simply 5.

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How many circles with a 3ft radius could fill a 100 square foot (10ft x 10ft) space without overlap?
Alborosie

Answer:

1

Step-by-step explanation:

Considering that the circle has radius of 3ft to mean its diameter is twice the radius hence 6 ft

Given that the length of the square is 10 ft

10÷6=1 ⅔ hence only 1 circle

10-6=4 ft

The space of 4ft can't allow another circle to fit without an overlap. Therefore, only one circle can fit

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4 years ago
the work of johnannes kepler is likely to have been most influenced by the work of which of the following scientists
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Kepler was a student of Copernicus who went with observations he made instead of tradition.
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