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ExtremeBDS [4]
3 years ago
12

H/3=-12 solving equations by multiplying or dividing ​

Mathematics
1 answer:
Vika [28.1K]3 years ago
4 0

Answer:

all work is shown and pictured

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If someone runs 4 meters per second, how many kilometers is that per hour?​
Vesna [10]

Answer:

14.4 km/h

Step-by-step explanation:

When finding km/h given m/s always multiply by 3.6

When finding m/s given km/h do the vice versa (divide by 3.6)

So.. 4km/h x 3.6 = <u>14.4 km/h </u>

6 0
4 years ago
Read 2 more answers
A wooden plank is leaning against a wall. The bottom of the plank is 3 feet from the wall. Answer each of the following question
Nadusha1986 [10]

AB = ==> distance between the bottom of the plank; and the wall ===> 3 ft.

C ====> 49 degrees

For letter a, to solve for AC:

AC ==> HYPOTENUSE. The angle C is the OPPOSITE side of AB.

use sine :

sin A ===> opposite/hypotenuse

Solve:

sin 49 ====> 3/AC

AC ====> 3 / sin 49

AC ====> 3.96 ft.

For letter b, to solve for BC:

We are now given with the base (3 ft.); and; the hypotenuse (3.96 ft.) so we can use the Pythagorean theorem:

a^2 + b^2 = c^2

Let:

a ===> AB

b ===> BC

c ===> AC

(AB)^2 + (BC)^2 ===> (AC)^2

3^2 + (BC)^2 ===> (3.96)^2

(BC)^2 ===> (3.96)^2 - 3^2

(BC)^2 ===> 6.6816

sqrt (BC)^2 ===> sqrt 6.6816

Answer: BC ===> 2.58 ft.

Hope that helps!!!! : )

3 0
3 years ago
State whether each of the following functions f have a well-defined inverse or not. Recall that a function has an inverse if, fo
Nat2105 [25]

Answer:

a

Step-by-step explanation:

4 0
3 years ago
What x multiply by x in ditrubrutive property
Karolina [17]

Answer:

x²

Step-by-step explanation:

7 0
4 years ago
You are given the following system.x=2y+42x-3y=11 What method would you use to solve this system?
qwelly [4]

Answer:

substitution

Step-by-step explanation:

We assume the two equations are ...

  • x = 2y+4
  • 2x -3y = 11

You are given an expression for x. Using that in the second equation will result in an immediate solution for y.

... 2(2y+4) -3y = 11 . . . . . substituting 2y+4 for x

.. y +8 = 11

... y = 3

... x = 2·3 +4 = 10

The solution is (x, y) = (10, 3)

7 0
4 years ago
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