The graph of a certain quadratic function has no x-intercepts. Which of the following are possible values for the discriminant? Check all that apply A. 18

B. -7

C. 0

D. -25

Step-by-step explanation:

[tex]\tan^2\alpha-\sin^2\alpha=\sin^2\alpha\tan^2\alpha\\\\LS=\left(\dfrac{\sin\alpha}{\cos\alpha}\right)^2-\sin^2\alpha=\dfrac{\sin^2\alpha}{\cos^2\alpha}-\dfrac{\sin^2\alpha\cos^2\alpha}{\cos^2\alpha}\\\\=\dfrac{\sin^2\alpha-\sin^2\alpha\cos^2\alpha}{\cos^2\alpha}=\dfrac{\sin^2\alpha(1-\cos^2\alpha)}{\cos^2\alpha}=\dfrac{\sin^2\alpha\sin^2\alpha}{\cos^2\alpha}\\\\=\sin^2\alpha\cdot\dfrac{\sin^2\alpha}{\cos^2\alpha}=\sin^2\alpha\left(\dfrac{\sin\alpha}{\cos\alpha}\right)^2=\sin^2\alpha\tan^2\alpha=RS[/tex]

Used:

[tex]\tan x=\dfrac{\sin x}{\cos x}\\\\\left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\\sin^2\alpha+\cos^2\alpha=1\to \sin^2\alpha=1-\cos^2\alpha\\\\\text{distributive property}\ a(b+c)=ab+ac[/tex]

Answer:

D

Step-by-step explanation:

To get the graph, we will need to solve each inequality differently

For the first one, we have that

x/4 < -1-7

x/4 < -8

x < -8 * 4

x < -32

For the second side;

2x-1 ≥ 9

2x ≥ 10

x ≥ 5

So we have two arrows facing different directions

On the left should be unshaded while the right hand side should be shaded

So, the correct answer here is the 4th option

Answer:

0.35

Step-by-step explanation:

[tex]\frac{7}{20}[/tex]

  20 ) 7   ( 0.35

          0

           70

          60

            100

            100

                0

Answer:

7\20 as a decimal is

0.35

Answer:

\sin ^{2} \theta+\cos ^{2} \theta=1

Step-by-step explanation:

Answer:

She must read more than 5 hours

Step-by-step explanation:

equation 12h+10>70

12h>60

h>5

So she must read more than 5 hours

(can I get brainliest now)

Answer:

12x5=60+10=70 pages.

She reads 12 pages per hour, so if she read for 5 hours, she would have read 60 pages. She has already read 10 pages, so that would equal 70 Pages.

Answer:

y=2

x=3

Step-by-step explanation:

I'm not sure, but considering that 3/2 = 1.5 I'm assuming that the rest is proportional as well. Therefore, making x=3 and y=2 (4/2=2 and 6/2=3)

Answer:

x = 3, y = 2

Step-by-step explanation:

the diagram shows two triangles that are similar (angle measures are equal and sides are proportional)

1.5 corresponds to 3; therefore, the ratio of sides is  1:2

'x' corresponds to 6  (x must be half of 6)

'y' corresponds to 4 (y must be half of4)

Answer:

C. none of the above

Step-by-step explanation:

-6 + 4q -6q

-2q - 6

Answer

C.

Step-by-step explanation:

sorry im late again

the answer is 4.8. Your welcome

Answer:

12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

18y

y = 2/3

Step 2: Evaluate

Answer:

The answer (rounded) is 12.

Step-by-step explanation:

2/3=0.66666666666

18x0.666666666=11.999998 or 12

I know its a little confusing with the decimals but I can't solve problems with fractions, I have to convert them to decimals. XD

Answer:

x = 2

y = 5

Step-by-step explanation:

3x + y = 11 equation (1)

-x + y = 3 multiply this equation by -1

x - y = -3 equation (2)

by adding 2 equations

4x = 8

x = 2

by sub. in Equation (2)

2 - y = -3

y = 2+3

y = 5

Answer:

A. -20p - 2

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

2 - 4(5p + 1)

Step 2: Simplify

Answer:

Step-by-step explanation:

Apply the distributive property

2-20p-4

Simplify expression

-20p-2

Answer choice A is correct

Answer:

Step-by-step explanation:

YET it was a rahi that had a chart of a rahi in her own words that 66inches the heights in cm and the same were all her friends hy 6AM 66inches ir and a great amount

Answer:

≈ 22 ft

Step-by-step explanation:

The area (A) of a square is calculated as

A = s² ( where s is the side length )

Given A = 479, then

s² = 479 ( take the square root of both sides )

s = [tex]\sqrt{479}[/tex] ≈ 22 ft ( to the nearest foot )

Answer:

A = 479 sq ft

479 = x²

square root of 479 = square root of x²

21.89 = x

rounded= 22 ft

Answer:

1,2,3,4,6,12

Step-by-step explanation:

12•1= 12

2•6= 12

3•4= 12

Answer:

Yes

Step-by-step explanation:

3 , 4 & 5 are Pythagorean Triplet numbers. When lengths of a triangle's 3 sides are Pythagorean Triplet , the triangle is a right angled triangle.

The triangle will be a right angled triangle only when the hypotenuse will have length of 5 and other 2 sides will have length of either 3 or 4.

Answer:

[tex]\boxed {\boxed {\sf Yes, \ the \ side \ lengths \ 3, \ 4, \ and \ 5\ can \ make \ a \ right \ triangle}}[/tex]

Step-by-step explanation:

If the triangle is a right triangle, then the sides will check out in the Pythagorean Theorem.

[tex]a^2+b^2=c^2[/tex]

Where a and b are the legs and c is the hypotenuse.

1. Define Sides

The legs are the 2 shorter sides and the hypotenuse is the longest.

The sides given are 3, 4 (shorter), and 5 (longest). Therefore:

[tex]a=3 \\b=4 \\c=5[/tex]

2. Check the Sides in the Theorem

Substitute the values into the theorem.

[tex](3)^2+(4)^2=(5)^2[/tex]

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

Solve all of the exponents first.

[tex]9+16=(5)^2[/tex]

[tex]9+16=25[/tex]

Add the numbers on the left side of the equation.

[tex]25=25[/tex]

This is true. 25 is equal to 25, so this triangle can be a right triangle.

Answer:

y=20x75 is the answer

Step-by-step explanation:

You can basically eliminate other two choices since they are division

Answer:

9x does

Step-by-step explanation:

hope it helps

remind me if its wrong

Answer:

16. [tex]y=7x[/tex]

17. [tex]y=0.5x[/tex]

18. [tex]y=3x[/tex]

19. [tex]y=2x[/tex]

Step-by-step explanation:

Equation is [tex]y=kx[/tex] where k is a constant of proportionality.

16.

[tex]\frac{y}{x}=\frac{10.5}{1.5}=\frac{14}{2}=\frac{24.5}{3.5}=\frac{35}{5}=7[/tex]

So, equation is [tex]y=7x[/tex]

17.

[tex]\frac{y}{x}=\frac{1}{2}=\frac{2}{4}=\frac{2.5}{5}=\frac{3.5}{7}=\frac{1}{2}=0.5[/tex]

Equation is [tex]y=0.5x[/tex]

18.

[tex]\frac{y}{x}=\frac{6}{2}=\frac{9}{3}=\frac{15}{5}=\frac{18}{6}=3[/tex]

Equation is [tex]y=3x[/tex]

19.

[tex]\frac{y}{x}=\frac{4}{2}=\frac{8}{4}=\frac{14}{7}=\frac{18}{9}=2[/tex]

Equation is [tex]y=2x[/tex]

Answer:

f(-6) = 5

Step-by-step explanation:

We want to find the value of the graph when x = -6

Go to where x = -6 and the y value is 5

f(-6) = 5

Answer:

[tex]y = 2.4^x \\ from \: intercepts \: using \: natural \: log( ln)[/tex]

Answer:

2.4

Step-by-step explanation:

Answer:

Please check explanations for answer

Step-by-step explanation:

Here, we want to differentiate between inverse and direct proportion

Let x and y be two quantities

If they are directly proportional;

x/y = k

x = ky

where k is proportionality constant

If inversely;

xy = k

In verbal terms;

For direct proportionality, when one value increase, the other too does so and vice versa

For inverse, when one value inverse, the other decrease

Using multiplication rules, it is found that the product of the multiplication if an even digit.

The rule is that a multiplication involving an even number will always result in an even number.

In this problem,two even numbers are multiplied, as they both finish with even digits, hence the result is also an even number, as evidenced by the fact that it finishes with an even digit.

You can learn more about multiplication rules of odd and even numbers at https://brainly.com/question/24657250

Answer:

can you put the problem and the answer choices in the ch.at or something so i can answer, or just the problem

Step-by-step explanation:

Answer:

Brand P has the cheaper price

Step-by-step explanation:

Brand P: $19.00 / 5 bags = $3.80 per bag

Brand Q: $13.17 / 3 bags = $4.39 per bag

Answer:

19+5

Step-by-step explanation:

7y+6-1+12y

Add common variables

19y+5

Can't be simplified any further without an answer to the equation

Hope this helps. Have a great day. May it be filled with joy and happiness

Answer:

24 x y2

Step-by-step explanation:

7+6=13

13-1=12

12+12=24

There is 2 Y's so you do y to the power of 2.