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3 years ago

If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

Mathematics

1 answer:

gayaneshka [121]3 years ago

7 0

Answer:

id say D

Step-by-step explanation:

Lemme know if you need anything !!

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Calculate average rate of change between n=1 and n= 11

crimeas [40]

Answer:

The ordered pairs for 1 and 3 are:

(1,2) (3,8)

Now use the slope formula:

(y2-y1)/(x2-x1)

(8-2)/(3-1)= 6/2 = 3

Step-by-step explanation:

5 0

3 years ago

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If f(x)=4x-3, what is f(x)^(-1)

VladimirAG [237]

Answer:

$f^{-1}(x)=\frac{x+3}{4}$

Step-by-step explanation:

observe by inverse definition of a function

$x=4f^{-1}(x)-3\\f^{-1}(x)=\frac{x+3}{4}$

6 0

4 years ago

A number cube is tossed and a spinner is spun. What is the probability of getting a 3 or 4 on the number cube and not getting 8

Rufina [12.5K]

Answer:

7/24

Step-by-step explanation:

Given in the question,

a number cube is tossed and a spinner is spun.

Cube have 6 in numbers

1 2 3 4 5 6

probability of having 3 or 4 = 2/6

= 1/3

Spinners are commonly made with 6, 8, 10 and 12 flat surfaces.

If a spinner has 8 flats then you have a 7/8 chance of not getting an 8.

Probability of getting a 3 or 4 on the number cube and not getting 8

"and" mean multiplication

7/8 x 1/3

7/24

5 0

3 years ago

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Find the distance between the two given points. O(-3,-2) and P(-3,4)

aliina [53]

Answer:

$\boxed {\boxed {\sf d= 6}}$

Step-by-step explanation:

Distance can be found using this formula:

$d=\sqrt {(x_2-x_1)^2+(y_2-y_1)^2$

Where (x₁, y₁) and (x₂, y₂) are the points.

We are given the points O (-3, -2) and P(-3,4). Therefore,

$x_1= -3 \\y_1= -2 \\x_2= -3 \\y_2=4$

Substitute the values into the formula.

$d=\sqrt {(-3--3)^2+(4--2)^2$

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction.

Solve inside the parentheses first.

(-3--3)= -3+3=0
(4--2)= 4+2=6

$d= \sqrt {(0)^2+ (6)^2}$

Solve the exponents.

(0)²= 0*0=0
(6)²= 6*6=36

$d=\sqrt {0+36$

Add.

$d= \sqrt {36$

Take the square root.

$d=6$

The distance is 6.

3 0

3 years ago

I need help, can someone please help!

anastassius [24]

Answer:

(25 x 3) - 14 = 61!

Step-by-step explanation:

3 0

3 years ago