Answer:
= 150°
Step-by-step explanation:
Since the polygons are regular, certain mathematical assumptions would help us here.
A square is a quadrilateral with all it's 4 sides equal and all it's angles equal.
Sum of angles of a regular quadrilateral = 360.
Therefore, a single angle = 360/4
= 90°.
The Triangle is adjacent to the side of the square. We will thus assume it's an Equilateral triangle.
For an equilateral triangle, all it's 3 angles = 180.
A single angle = 180/3
= 60°.
With this,
Angle ABC = 90° + 60=
= 150°
Answer:
f(1) = 1
Step-by-step explanation:
To evaluate a function, you see the y value it gives when you plug in the x value.
When you plug in 1 for the x value, the y value is also 1, so f(1) = 1
Answer:
Step-by-step explanation:
<u>The speed of sound in water:</u>
<u>Time:</u>
- t = 10 min = 10*60 sec = 600 sec
or
- t = 1 hour = 60 min = 60*60 sec = 3600 sec
<u>Distance in 10 min:</u>
- d = s*t
- d = 1500 *600 = 900 000 m = 900 km
<u>Distance in 1 hour:</u>
- d = 1500*3600 = 5 400 000 m = 5400 km
The diameter of under the magnifying glasses is 6cm, so the actual size is 6÷5cm, the diameter is 1.2 cm
Volume formula is volume=base x height (v=bh)
b=9 x 12
b=108
v=108 x 10
v=1080ft³
