Do you mean simplified ratio of 50:30, because if you did then the simplified ratio of 50:30 would be 5:3. Divide both numbers by 10.
Q7: D
Q8: B
Step-by-step explanation:
Q7:
A cuboid is a three-dimensional shape, having six faces, where all the faces (top, bottom, and lateral faces) of the prism are rectangles, and every two opposing side faces are identical.
Therefore a cuboid is a rectangular prism.
Q8:
Volume of a cube
= l³
= 6 x 6 x 6
= 216 m³
Using the slope concept, it is found that the change in elevation was of -699 feet.
<h3>What is a slope?</h3>
The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.
In this problem, we have that:
- The vertical change is of h.
- The horizontal change is of 10,000 feet.
Hence:
tan(-4º) = h/10000
h = 10000 x tan(-4º)
h = -699.
More can be learned about the slope concept at brainly.com/question/18090623
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Answer:
-60 m/s²
Step-by-step explanation:
We are not given the velocity of the plane at landing but we are given velocities at two time periods
V₅, the velocity of the plane 5 seconds after landing is 110 m/s
Plugging this into the velocity equation we get
(1)
Similarly
(2)
Subtract (1) from
Therefore 
Given 
this evaluates to
-60 m/s²
The negative value is because the plane is actually decelerating which is a negative number
4b+1 equivalent to -2(b+4)+3
