The total number of marbles is 30+20+50= 100, so. Since there are 20 red marbles and 50 blue marbles. There are 30+50=80. 80/100=4/5= 80%
Answer: y = -3/2x -5
explanation:
y = mx + b
7 = -3/2(-8)+b
7= 12 +b
subtract 12 on both sides
-5 = b
y = -3/2x - 5
Answer:
10692 cubic inches
Step-by-step explanation:
Since we are told to give the units in inches, let's convert the two values which are in feet.
1 ft= 12 inches
thus,
length 2.75 ft. = 33inch
breadth 4.5 ft. = 54 inch
and height is 6 inches.
Volume of a cube= length × width × height
= 33 × 54 × 6
= 10692 cubic inches
When dividing by a negative number, you switch the signs.
The magnitude and the direction of the resultant are approximately 57.871 and 198.676°.
<h3>How to determine the magnitude and the direction of a resultant</h3>
Vectors are elements with two given characteristics: Magnitude and direction. A resultant is derived from the sum of vectors, the magnitude is the norm of a vector and the direction is the orientation of a vector. The resultant and its characteristics are described below:
<h3>Resultant</h3>
(1)
<h3>Magnitude</h3>
(2)
<h3>Direction</h3>
(3)
Where
is resultant angle, measured in degrees.
If we know that
,
,
,
,
and
, then the resultant, its magnitude and its direction:
<h3>Resultant</h3>


<h3>Magnitude</h3>


<h3>Direction</h3>


The magnitude and the direction of the resultant are approximately 57.871 and 198.676°. 
To learn more on vectors, we kindly invite to check this verified question: brainly.com/question/13322477