How to solve quadratic inequalities.

Answers

Answer 1

Find all the zeros of the polynomial, and arrange the zeros in increasing order. ...

Plot those numbers on the number line as open or closed points based upon the original inequality symbol.

Choose a test value in each interval to see if the interval satisfies the inequality or not.


Related Questions

What is a vector quantity ?

Answers

Answer:

Vector, in physics, a quantity that has both magnitude and direction.

Answer:

Vector in physics, a quantity that has both magnitude and direction.

find the value of x !!!!!!

Answers

Answer:

[tex]x[/tex] = 14

Step-by-step explanation:

(4x-1)+(2x+7)+90=180

write an equation of the line slope intercept form that is parallel to Y= 1/2 X +3 and through the point (2, -1)

Answers

Answer:

y=1/2x

Step-by-step explanation:

I first did point-slope form which is

y+1=1/2(x-2)

Then, I converted it into slope-intercept form which is

y=1/2x

SHOW WORK, please!!!!!!
A pineapple is 7 times as heavy as an orange. The pineapple also weighs 870 grams more than the orange.
What is the total weight in grams for the pineapple and orange?

Answers

Answer:

1015 g and 145 g

Step-by-step explanation:

Let pineapple  = x, orange = y

A pineapple is 7 times as heavy as an orange:

x = 7y

The pineapple also weighs 870 grams more than the orange:

x = y + 870

Compare the two equations above:

7y = y + 8706y = 870y = 870/6y = 145

Find the value of x:

x = y + 870 = 145 + 870 = 1015

[tex]\huge \bf༆ Answer ༄[/tex]

Weight of pineapple :

[tex] \boxed{ \sf1015 \: g}[/tex]

Weight of Orange :

[tex] \boxed{ \sf145 \: g}[/tex]

[tex]꧁  \:  \large \bf{ Kaul } \: ꧂[/tex]

Which line is perpendicular to the line x =
į
?
O A. X = -2y
B. y = - 2x
O
C. X = -2
O
D. y = 2

Answers

Answer:

Option D

Hope this helps!

help me with this math question pls​

Answers

Answer:

length = 10 cm

Step-by-step explanation:

The volume (V) of a prism is calculated as

V = Al ( A is the cross sectional area and l is the length )

Here V = 125 and A = 12.5 , then

125 = 12.5 × l ( divide both sides by 12.5 )

10 = l

The length of the prism is 10 cm

Simplify the ratio, 44:33

Answers

Answer:

4:3

Step-by-step explanation:

if we take 44:33 and simplify by dividing by 11 we get 4:3

[tex]44:33 \\ ⇒ \frac{44}{33} \\ ⇒ \frac{4}{3} \\ = 4:3[/tex]

- BRAINLIEST answerer

Given each set of points, determine if AB and CD
are parallel, perpendicular, or neither.
9. A(2, 2), B(0, 0), C(2, 0), D(0, -2)

Answers

Answer:

Paralell

Step-by-step explanation:

The line from A to B has a slope of 1

the Line from C to D had a slope of 1

since the slopes are equal the lines are paralell

Answer:

parallel

Step-by-step explanation:

The line from A to B has a slope of 1

the Line from C to D had a slope of 1

since the slopes are equal the lines are paralell

test ill give brainlist
Subtract.

7/8−4/8

Answers

Step-by-step explanation:

7/8 - 4/8.....find the common denominator

(7-4)/8 .....the common denominator is 8

3/8

hope this helps

Select the choice that translates the following verbal phrase correctly to algebra: (1 point)

the product of 12 and y increased by 11
12(y + 11)
12y + 11
12 + 11y
12(11y)

Answers

Answer:

[tex]⟼12(y + 11)[/tex]

Forty-five more than a number​

Answers

Answer:

n+45

Step-by-step explanation:

Just name "a number" as n or any other variable

Answer:

45 + x

Step-by-step explanation:

A total of 10 families participate in a car wash. Each family brings two cars. Mr. Gonzales notices that 35% of the cars are minivans. How many minivans are washed?

Answers

Answer:

Step-by-step explanation:

Answer:

14 minivans

Step-by-step explanation:

From the question

A total of 20 families participate in a car wash. Each family brings two cars.

Hence, the total number of cars brought to the car wash is:

20 × 2

= 40 cars.

Mr. Gonzales notices that 35% of the cars were minivans.

The number of minivans were washed is :

35% of the total number of cars

= 35/100 × 40

= 14 minivans

Answer:

14 minivans

Step-by-step explanation:

From the question

A total of 20 families participate in a car wash. Each family brings two cars.

Hence, the total number of cars brought to the car wash is:

20 × 2

= 40 cars.

Mr. Gonzales notices that 35% of the cars were minivans.

The number of minivans were washed is :

35% of the total number of cars

= 35/100 × 40

= 14 minivans

JE VOUDRAI CONNAITRE LE RESULTA DE
5√200

Answers

Tienes que divertir el número con el zero después vas a suscribir

the measure of an angle is 6 less than 5 times its complement. what is the complement.

Answers

Answer:

90−74=16∘.

Step-by-step explanation:

If x is the measure of the angle, then 90−x is the measure of the complement, both in degrees

Solve.

−5x+6=−4(2x−1)


x=−14/3

x=−10/13

x=−2/3

Answers

Answer:

-2/3

Step-by-step explanation:

First, distribute, -4(2x - 1) is -8x + 4. Next, do the opposite of the sign for the variable, since -8x can be written as - 8x, do the opposite sign, which is addition. -5 + 8 and -8 + 8. Add on both sides. Now you have 3x + 6 = 4. Then subtract 6 by 4. You'll get -2. The denominator is the number that has the variable. So now the equation will be 3x/3 = -2/3. You can turn -2/3 into a decimal, but it-s fine like that.

y=1/3-1/2x what is the slope and y-intercept

Answers

Answer:

slope is -1/2 and y- intercept is 1/3

Step-by-step explanation:

use y=mx+b

m=slope

b= y-intercept

rearrange your equation

y=1/3-1/2x

y=-1/2x+1/3

Divide. Write the answer in simplest form.
2/5 divided by 3

Answers

Answer:

Step-by-step explanation:

0.13 repeating

What is the common difference for this arithmetic sequence 45,40,35,30,25,

Answers

Answer:

-5

Step-by-step explanation:

euler formula find the number of edges of a polyhedron of 6 faces and 4 verticies

Answers

Euler's polyhedron formula, V − E + F = 2

[tex] = 4 - E + 6 = 2 \\ = E - 10 = 2 \\ = E = 2 + 10 \\ = E = 12[/tex]

Write
3^2 × 3√3 as a single power of 3.

Answers

Answer:

27√3

Step-by-step explanation:

Write the word sentence as an equation. Then solve the equation

the difference between a number p and 6 is -14

Answers

Answer:

-8

Step-by-step explanation:

The difference between a number P and 6 is -14.

then;

[tex]p - 6 = - 14 \\ p = - 14 + 6 \\ p = - 8[/tex]

Please help! Thankss!! :)

Answers

Answer:

21

Step-by-step explanation:

If b = -4, then -4(-4) is 16, since 2 negatives is a positive when multiplying or dividing. Then add 16 and 5, since 5 is c. You'll get 21

21
Explanation:
Follow PEMDAS (order of operations) to get answer.
-4(-4)+5
16+5 = 21

i am very confused amd i also hate math so please help

Answers

Answer:

The answer that you put is right

the radius of the circle increase at a rate of 4 cm ,min how fast is the area of pool increasing when the radius is 5 cm

Answers

Answer:

40π cm2/ min.

Step-by-step explanation:

First, we should begin with an equation we know relating the area of a circle, the pool, and its radius: A=πr2.

Use the long division method to find the result when 6x^3+ 23x^2 + 15x + 28 is
divided by 2x + 7

Answers

The answer is:

3x^3+x+4.

Hope this helped!! :)

one third of the result of three times a number that is increased by 12

Answers

Answer:

Step-by-step explanation:

1/3 (3x+12)

1/3×3x+1/3×12

x+4

2h(3m-4h)please help me

Answers

Answer:

6hm-8h^2

Step-by-step explanation:

2h(3m-4h)

2h*3m=6hm

2h*4h=8h^2

=6hm-8h^2

2——————————————————————-

Why is it necessary for the differentiated cells to produce a mucus coating?

Answers

Mucus coating is required for multiple functions such as protection and dealing with substances or pathogens.

Cells differentiation occurs as cells changes from a basic type to a more specialized one. Some specialized cells include:

Muscle cells.Immune cells.Epithelial cells.

Some of these cells including epithelial cells and mucous cells produce mucus. This particular substance has many functions but the most important are:

Protecting mucous membranes including the lining of organs such as the lungs.Trapping some substances, especially nocive substances to eliminate them later.Containing important substances the body requires.

Learn more in: https://brainly.com/question/11289653

learnt this topic a while ago and somehow completely forgot could someone explain?

Answers

Answer:

99.5

Step-by-step explanation:

in right angle triangle

sin x = opposite side / hypotenuse

sin 34 = x  / 178

x  = sin 34 * 178

= 99.5

We can repeat the derivative operation: the second derivative $f''$ is the derivative of $f'$, the third derivative $f'''$ is the derivative of $f''$, and so on. Find a function $f$ such that $f'$ and $f''$ are not the function 0, but $f'''$ is the constant function 0.

Answers

Answer:

  f(x) = x^2

Step-by-step explanation:

Any quadratic (2nd-degree) function will have 0 as its third derivative.

  f(x) = ax² +bx +c

  f'(x) = 2ax +b

  f''(x) = 2a

  f'''(x) = 0

Perhaps the simplest such function is f(x) = x^2.

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