this is the question I need help with​

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.

9514 1404 393

Answer:

  (d)  -√((2+√2)/(2-√2))

Step-by-step explanation:

5π/8 is a 2nd-quadrant angle whose reference angle is greater than π/4. This means the tangent is negative with a magnitude greater than 1. The only reasonable choice is ...

  [tex]\displaystyle -\sqrt{\frac{2+\sqrt{2}}{2-\sqrt{2}}}[/tex]

_____

Additional comment

This simplifies to -(1+√2). Your calculator can verify the choice for you.

Answer:

Step-by-step explanation:

HOPE IT HELPS MUCH UNTO YOU

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:

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!

f + 6 = ?

Well, the answer can be pretty much any number. It all depends on what number f is. f is a variable, so you can plug in any number to replace f.

For example, if f was 5, this is what the equation would look like:

5 + 6 = 11

If f was -3, this is what the equation would look like:

-3 + 6 = 3

So, again, the answer can be anything. It depends on what f is.

Answer:

Step-by-step explanation:

let the no of girls be x

ratio of boys to girls=4:7

4/7=16/x

do cross multiplication

7*16=x*4

112=4x

112/4=x

28=x

therefore there are 28 no of girls.

Answer:

where is the diagram please put it

Answer:

I think the answer is 13...

Step-by-step explanation:

f(3)=5*3-2

=13

Answer:

f(3) = 13

Step-by-step explanation:

Replace each instance of x in this function with 3:

f(3) = 5(3) - 2, or:

f(3) = 13

Answer:

Area =  [tex]44yd^2[/tex]

Step-by-step explanation:

a = 7 , b = 4 , h = 8

[tex]Area = \frac{a + b}{2 } \times height = \frac{7+4}{2} \times 8 = \frac{11}{2} \times 8 = 11 \times 4 = 44yd^2[/tex]

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:

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:

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

Answer:

Pretty sure its coefficient

Step-by-step explanation:

Answer:

2^4x

Step-by-step explanation:

4^x+2^2x

=(2)^2x+2^2x

=4^2x

=(2)2*2x

=2^4x

Answer:

4^x+2^2x

Step-by-step explanation:

There is really not much to do here but multiply 1*2^2x which stays the same

giving an answer of 4^x+2^2x

Answer:

[tex]hypotenuse = 5 \: cm \\ height = 5 - 1 = 4 \: cm \\ base = \sqrt{ {5}^{2} - {4}^{2} } = \sqrt{9} = 3 \: cm[/tex]

Part A:

[tex]perimeter = 5 + 4 + 3 \\ = 12 \: cm[/tex]

Part B:

[tex]area = \frac{1}{2} \times base \times height \\ = \frac{1}{2} \times 3 \times 4 \\ = 6 \: {cm}^{2} [/tex]

Answer:

477900

Step-by-step explanation:

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:

$1.96

Step-by-step explanation:

I just multiplied 5.6 • 0.35 to get the sum of 1.96. I hope this is accurate and helped you :)

Answer:

he earns a 18 percent increase

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:

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

Hi there!  

»»————-　★　————-««

I believe your answer is:  

[tex]\boxed{x = \frac{6}{k}}[/tex]

»»————-　★　————-««  

Here’s why:

⸻⸻⸻⸻

[tex]\boxed{\text{Calculating the Answer...}}}\\\\kx+12=3kx\\------------\\\rightarrow kx+12 - 12 = 3kx-12\\\\\rightarrow kx = 3kx - 12\\\\\rightarrow kx - 3kx = 3kx - 3kx - 12\\\\\rightarrow -2kx = -12\\\\\rightarrow \frac{-2kx = -12}{-2k}\\\\\rightarrow \boxed{x=\frac{6}{k}; k\neq 0}[/tex]

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

x = 6/k

Step-by-step explanation:

kx + 12 = 3*kx

to make like terms on same side shift kx to right hand side . when u shift positive kx to other side it becomes negative

12 = 3kx - kx

12 = 2kx

shift 2 to left hand side when u shift multilication changes to division.

12/2 = kx

6 = kx

to find x u must shift k to other side . here also same since k and x are multilied when k shifts to others side it becomes divisor.

6/k = x

Answer:

-4x

Step-by-step explanation:

Answer:

x = -4

Step-by-step explanation:

The axis of symmetry is the vertical line that makes a mirror image on the left and right for a vertical parabola

It goes through the vertex and is the x coordinate

x = -4

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:

128degrees

Step-by-step explanation:

Using the theorem that states that the angle at the centre is twice the angle at the circumference, hence;

<D = 180 - 116

<D = 64

<x = 2(<D)

<x = 2(64)

<x = 128

Hence the measure of <x is 128degrees

.

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:

Step-by-step explanation:

take 30 degree as reference angle

using sin rule

sin 30=opposite/hypotenuse

1/2=x/10(do cross multiplication)

2*x=10*1

x=10/2

x=5

Answer:

5

Step-by-step explanation:

The sin is the opposite cathetus divided by the hypothenuse, and the sin30° = 0.5, so let's do an equality:

sin30° = x/10

0.5 = x/10

10•0.5 = x

x = 5

Answer:

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

Step-by-step explanation:

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