Question: Given a quadratic equation in standard form, explain how to determine if there is one real solution, two real solutions, or no real solutions (hint: use the discriminant b2-4ac). WILL MARK BRAINLIEST

Answer:

he earns a 18 percent increase

Answer:

10.

Step-by-step explanation:

To find the distance between two numbers, subtract the two numbers. The absolute value of the difference is the distance.

[tex](-7)-3=(-10).[/tex]

The absolute value of -10 is 10.

Therefore, distance between -7 and 3 is 10.

Answer:

10 of course!

Step-by-step explanation:

we know that numbers smaller than zero have the minus sign beside them,you just count from 3 down to 0(doesn't count)

and then -1 till -7,you add 7 to 3 and you get 10 !,nothing easier

Answer:

1/7 ÷ 5/2 = 2/35 in fraction form. 1/7 ÷ 5/2 = 0.0571 in decimal form.

Step-by-step explanation:

The Answer is 2/35

l l l l l l l l l l l l l

Answer:

where is the diagram please put it

Answer:

A. 360 degrees

B. 360 degrees all the way around but each individual one is 90 degress

Step-by-step explanation:

Answer:

Step-by-step explanation:

B: the kite's diagonals intersect each other at a 90o degree angle.

A: It should come to 360. Let's if that happens.

Take the top angle (88) first. Notice that if you draw in both diagonals,  the will form Isosceles triangles. Let's deal with the shorter diagonal first.

The two angles at the base of the shorter diagonal are equal. That's because the sides opposite them are equal.

2x +88 = 180       Subtract 88 from both sides.

2x  = 92               Divide by 2

x = 46

Now lets look at the long narrow legs of the bottom isosceles triangle.

2x + 50 = 180      Subtract 50 from both sides

2x = 130               divide by 2

x = 130 /2

x = 65

Now add up all the angles that make up the interior of the kite.

Total = 46 + 46 + 65 + 65 + 50 + 88

Total = 360 just as it should.

OPTION C

(x,y) ------> (x-2, y+9)

Answer:

I think option C is the answer

Answer:

Perimeter you add up all the sides.  If it is a horizontal or vertical line, you just write those values for the side lengths.  For the slanted one, I would use pythagorean theorem to solve it.

Step-by-step explanation:

If we make a right triangle using vertical and horizontal lines. We will find that a = 6, and b = 12.  Find the square root of the sum of a squared plus b squared.  That will tell you C.  Then add C to the other 3 sides and that will give you the perimeter.

Answer:

Step-by-step explanation:

Range is y thing, where as domain is an x thing. The way you state a range (or a domain, for that matter) is to start from the low point on the graph and go up to the high point. Our graph doesn't have a starting point; therefore, the "low" end of the graph comes up from -∞. The high point on the graph maxes out at 3. Therefore, the proper way to state the range (depending upon whether you use set-builder or not) is

R = (-∞, 3] or another way to state this is

R = {y | y ≤ 3} which reads "y such that y is less than or equal to 3".

Answer:

37.5=2A+S, 35.25=1A+3S (You may have to rearrange it depending on directions)

Step-by-step explanation:

Okay, so we lets write that

Adult=A

Student=S

37.5=2A+S

35.25=1A+3S

This is as far as my brain power goes, so hopefully it helps you!

Heart it if I was good!

Answer:

$357.42

Step-by-step explanation:

So first I multiplied $425.50 by 20%.

$425.50 * 0.20=  85.10

$425.50- 85.10= $340.40

$340.40 * 0.05 = $17.02

$340.40 * 0.07 = $23.828

$340.40 + 23.828 + 17.02= $ 357.42

The sale price of Dean's guitar is $357.42.

Answer:

Step-by-step explanation:

take 58 degree as reference angle

using cos rule

cos 58=adjacent/hypotenuse

0.52=3.6/x

x=3.6/0.52

x=6.92

x=6.9

Answer:

Step-by-step explanation:

First of all notice that slope has a negative value

Also notice that line cuts the y axis in -1

because of the symetry of the line you can deduce that the slope is -1, also you can calculate it using the fact that the points (-1, 0) and (0, -1) belongs to the line, the slope would be:

m=(0-(-1))/(-1-0)=-1

finally the equation is

y=-x-1

Answer:

(0, 1)

(-1, -1)

(1,3)

Step-by-step explanation:

Given the function;

y = 2x + 1

when x = 0

y = 2(0)+1

y = 1

Hence the required pair is (0, 1)

when x = -1

y = 2(-1) + 1

y = -2 + 1

y = -1

Hence the coordinate is (-1, -1)

when x = 1

y = 2(1) + 1

y = 2 + 1

y =3

Hence the coordinate is (1, 3)

Answer:

See below.

Step-by-step explanation:

1.) False - It contains 6 sig figs, not 2.

2.) False - It goes up to 2 decimal places, not 3.

3.) True

4.) False - It goes up to 1 sig fig, not 4.

Answer:

477900

Step-by-step explanation:

Step-by-step explanation:

LM =√10²-6²=√64=8

a. tan N = 8/6= 4/3

b. cos L = 8/10= 4/5

Answer:

5088 is the perimeter of the rectangle.

Answer:

5088 is the right answer

The formula of perimeter of rectangule is 2(l+b)

So, l=1472 b=1072

2(1472+1072)

2(2544)

2×2544 IS 5088

Answer:

Cos(15) = Cos(45-30)

Sin(15) = Sin(45-30)

Cos(45-30) - Sin(45-30)

Simplifying both brackets

Recall

Cos(A+B) = CosACosB - SinASinB (For cosine... The sign is always the opposite during expansion. If you look... Cos(A+B) became negative during its expansion;So if It was Cos(A–B)... Its expansion is CosACosB + SinASinB)]

Sin(A+B) = SinACosB + CosASinB

Now let's go!

Cos(45-30) = Cos45Cos30 + Sin45Sin30

From Trig

Cos45 = 1/√2

Cos30 = √3/2

Sin45 = 1/√2

Sin30 = 1/2

Substituting

Cos(45-30) = (1/√2).(√3/2) + (1/√2).(1/2)

= √3/(2√2) + 1/(2√2)

= 1 + √3/(2√2).

For

Sin(45 - 30)

= Sin45cos30 – Cos45Sin30

= (1/√2).(√3/2) – (1/√2).(1/2)

= √3/(2√2) – 1/2√2

= √3 – 1/(2√2)

So the question was

Cos15 - Sin15

Substituting...

1 + √3 / 2√2 – (√3 - 1)/ 2√2

When the Minus interacts with the parenthesis

We have

1 + √3 - √3 + 1 / (2√2)

= 2/2√2

= 1/√2.

THE ANSWER IS 1/√2 AND NOT 1/2.

YOU CAN VERIFY THIS WITH YOUR CALCULATOR ALSO.

YOU'LL HAVE 0.7071 WHICH IS SAME AS 1/√2.

HAVE A GREAT DAY!

Answer:

x= 113

y= 67

z= 49

Step-by-step explanation:

a triangle equals to 180° so lets start with the triangle that has two given degrees

28 + 39 + x = 180 solve

x = 113

no we can find y by using x + y = 180 since it's a straight line

we know the value of x so 113 + y = 180. solve.

y= 67

now do the same thing we did from the start since we have two given degrees on the other triangle.

67 + 64 + z = 180

z= 49

Answer:

[tex] \frac{1}{18} [/tex]

Step-by-step explanation:

[tex] \frac{1}{4} \times \ \frac{2}{9} \\ \frac{1}{18} [/tex]

Answer:

9,000

Step-by-step explanation:

180/400 × 20,000 = 9,000

Answer:

9,000

Step-by-step explanation:

180÷400= 0.45

0.45×20,000= 9,000

Answer:

65+11x-17 =180

11x+48 =180

11x. =180-48

11x. =132

x =12

The complete steps for the value of x are;

1. 65 + (11x - 17) = 180

2. 11x + 48 = 180

3. 11x = 132

4. x = 12

What is linear expression?

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.

Given that;

In the figure,

Angles 65 degree and (11x - 17) degree are supplement to each other.

Now, We use the definition of supplementary angles, for find the value of x as;

Angles 65 and (11x - 17) degree are supplement to each other.

⇒ 65 + (11x - 17) = 180

Combine like terms, we get;

⇒ 11x + (65 - 17) = 180

⇒ 11x + 48 = 180

Subtract 48 both side, we get;

⇒ 11x + 48 - 48 = 180 - 48

⇒ 11x = 132

Divide by 11, we get;

⇒ x = 12

Thus, The value of x = 12

Therefore, The complete steps for the value of x are;

1. 65 + (11x - 17) = 180

2. 11x + 48 = 180

3. 11x = 132

4. x = 12

Learn more about the supplementary angle visit:

https://brainly.com/question/98418

#SPJ5

Answer:

Pretty sure its coefficient

Step-by-step explanation:

Answer:

[tex]6(2p + 2) = 120 \\ 2p + 2 = 20 \\ 2p = 18 \\ p = 9[/tex]

Answer:

P = 9

Step-by-step explanation:

6(2P+2) = 120

12P + 12 = 120

      - 12 = -12

      12P = 108

        12 =  12

         P = 9

Answer:

1. 35/12

2. 23/10

3. 3/4

Answer:

Step-by-step explanation:

angle 2 and angle 3 are linear pair

angle 1 and angle 7 are alternate exterior angle

angle 4 + angle 7=a80 degree

124 + angle 7=180

angle 7=180-124

angle 7=56 degree

angle 1 is supplementary to angle 2 ,angle 4, angle 6, angle 8 .In supplementary angle sum of two angle is always 180 degree.

angle 4 and angle 5 are supplementary angles because their sum is equal to 180 degree.

angle 4 + angle 5(being co interior angle)

3x+17+x+23=180

4x+40=180

4x=19=180-40

x=140/4

x=35