Subtract.

(9x + 7) - (x+3) = ?​

Answer:

Step-by-step explanation:

12). By applying Pythagoras theorem in the given right triangle,

      Hypotenuse² = (Leg 1)² + (Leg 2)²

      x² = 7² + 7²

      x² = 2(7)²

      x = [tex]\sqrt{2(7)^{2} }[/tex]

      x = [tex]7\sqrt{2}[/tex]

13). By sine rule,

      sin(60)° = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

      [tex]\frac{\sqrt{3}}{2}=\frac{9\sqrt{3} }{y}[/tex]

      y = [tex]\frac{18\sqrt{3} }{\sqrt{3} }[/tex]

      y = 18

      By cosine rule,

      cos(60)° = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

      [tex]\frac{1}{2}=\frac{x}{y}[/tex]

      x = [tex]\frac{y}{2}[/tex]

      x = [tex]\frac{18}{2}=9[/tex]

14). By applying Pythagoras theorem in the given right triangle,

      12² = x² + x²

      144 = 2x²

      72 = x²

      x = √72

      x = 6√2

Answer:

27607.36 meters per hour

Step-by-step explanation:

400/52.16 = 7.66871165644

7.66871165644 meters per second

7.66871165644 × 60 = 460.122699386 meters per minute

460.122699386 * 60 = 27607.3619632 meters per hour

27607.3619632 meters per hour

Answer:

A. [tex] y_1 = -m(x_2 - x_1) + y_2 [/tex]

Step-by-step explanation:

Given, slope formula = [tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

To find an equivalent equation, let's make [tex] y_1 [/tex] the subject of the formula.

[tex] m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

Cross multiply

[tex] 1(y_2 - y_1) = m(x_2 -x_1) [/tex]

[tex] y_2 - y_1 = m(x_2 - x_1) [/tex]

Subtract [tex] y_2 [/tex] from both sides

[tex] y_2 - y_1 - y_2 = m(x_2 -x_1) - y_2 [/tex]

[tex] - y_1 = m(x_2 - x_1) - y_2 [/tex]

Divide both sides by -1

[tex] \frac{- y_1}{-1} = \frac{m(x_2 -x_1) - y_2}{-1} [/tex]

[tex] y_1 = -m(x_2 - x_1) + y_2 [/tex]

Answer:

5x + 4y = 20 on a graph

Step-by-step explanation:

Answer:

hey there guys ^^

Step-by-step explanation:

Answer:

(-6,0.5)

Step-by-step explanation:

(-9 + -3)÷2= -6

(-4 + 5)÷2=0.5

(-6,0.5)

Answer: A. 21,120

Step-by-step explanation: Good luck! :D

Step-by-step explanation:

5x+2y=13

2x+6y=26

[tex]5x = 13 - 2y \\ x = \frac{13 - 2y}{5} [/tex]

[tex]2( \frac{13 - 2y}{5} ) + 6y = 26[/tex]

[tex] \frac{26}{5} - \frac{4y}{5} + 6y = 26[/tex]

[tex]6y - \frac{4y}{5} = 26 - \frac{26}{5} \\ [/tex]

[tex]5.2y = 20.8 \\ y = 4 \\ x = \frac{13 - 2 \times 4}{5} = \frac{13 - 8}{5} \\ x = 1[/tex]

Answer: 12 + 21y

Step-by-step explanation:

Answer:

12 + 21y

Step-by-step explanation:

Answer:

A.

[tex]C= 28.3 \ \ feet[/tex]

Step-by-step explanation:

Formula for Circumference is

[tex]C=2\pi r[/tex]

We know radius is half of diameter

[tex]r=\frac{d}{2} \\r=\frac{9}{2}[/tex]

[tex]C=2(3.14)\frac{9}{2}[/tex]

[tex]C=(3.14)9\\C=28.3 feet[/tex]

Answer:

The answer to the question provided is $7.01

Answer:

c is the correct option

Step-by-step explanation:

6*2/3=4

20 divided by 2/3=30

Answer:

C. 35 square centimeters

Step-by-step explanation:

What we need for this question:

The edges of a cube are 5 centimeters each.

The face diagonal is about 7 centimeters. (actually 7.0710678118655 cm)

To find the cross sectional area here, multiply 5 cm by 7 cm.

5 cm * 7 cm

35 cm² is your final answer, so C is the answer.

Answer:

It is C. 35 square centimeters

Step-by-step explanation:

Answer:

[tex]t-223=409[/tex]

Step-by-step explanation:

Since Kiran scored 223 fewer points in a computer game than Tyler, Tyler's score can be represented as:

[tex]k+223=t[/tex], where [tex]t[/tex] is Tyler's score and [tex]k[/tex] is Kiran's score.

Since Kiran scored 409 points, we can set [tex]k=409[/tex]:

[tex]409+223=t[/tex].

Re-arranging this, we get:

[tex]\fbox{$t-223=409$}[/tex].

Answer:

h

Step-by-step explanation:

j

Answer:

$162

Step-by-step explanation:

10% of 180 is 18

180-18=162

Answer:

It decreases

Step-by-step explanation:

Hope you don't need an explanation, it decreases is the real answer.

Answer:

Total salary = $60,000

Step-by-step explanation:

Well I'm just going to make this short and easy... ok?

12,000=20%

20%x5 = 100%

hmmmm....

12,000 x 5 = ???

Answer = $60,000

Answer:

Step-by-step explanation:

RS + ST = RT

6y + 3 + 4y + 7 = 60

6y + 4y + 3 + 7 = 60

       10y + 10   = 60

                  10y = 60 - 10

                 10y = 50

                    y = 50/10

y = 5

RS = 6*5 + 3 = 30 +3 = 33

ST = 4*5 + 7 = 20 + 7 = 27

Step-by-step explanation:

[Diagram in image attached]

RS + ST = RT

(6y +3) + (4y + 7) = 60

6y + 3 + 4y + 7 = 60

10y + 10 = 60

10y = 60 - 10

10y = 50

y = 50/10

y = 5

RS = 6y +3 = 6(5) + 3 = 30 + 3 = 33

ST = 4y +7 = 4(5) + 7 = 20 + 7 = 27

RT = 60

{RS + ST = RT

33 + 27 = 60}

HOPE THIS HELPS YOU

MARK AS BRAINLIEST

Answer:

Let the sum be x.

Using formula,

I=

100

PRT

​

=

100

x×

12

15

​

×

2

15

​

​

−

100

x×

12

8

​

×

2

25

​

​

=32.50

⇒

2400

25x

​

=32.50

⇒x=

25

32.50×2400

​

=3120

∴ Required sum =Rs.3120

Step-by-step explanation:

Answer:

Step-by-step explanation

To go from 1 to 2, you add one. To go from 2 to 4 you add two. To go from 4 to 7, you add three. Then you add 4. Then you add 5 and so on.

Step-by-step explanation:

Opposite angles in a parallelogram are congruent.

Therefore Angle XWZ = Angle XYZ. (D)

Answer:

D)XYZ

Step-by-step explanation:

I am pretty sure that's the answer

Answer:

6

Step-by-step explanation:

i took the test on edge

Answer:

the answer is 25.30

Step-by-step explanation:

1. first you subtract the 15% from the bill that comes out to $27.20

2. next subtract the 7% tax from the $27.20 to get your answer