Answer:
a. 21.2
Step-by-step explanation:
Given: Angle B = 62 and side c = 24.
We have to find the length of b.
The given triangle is a right triangle because m∠C = 90 degrees.
To find the side b, we can use the sin ratio.
sin = opposite / Hypotenuse
Here opposite = b, hypotenuse = c = 24, angle B = 62
Therefore, sin 62 =
Multiplying both sides by 24, we get
24 sin 62 = b
[sin 62 = 0.883]
Now plug in sin 62 = 0.883 in the above equation, we get
24*0.883 = b
b = 21.2 [Rounded off to the nearest tenths place]
Answer: a. 21.2
The number of stamps and the cost are illustrations of unit rates
40 stamps would cost $22
The cost of 15 postage stamps is $8.25
Start by calculating the unit rate of the stamps.
So, the number of stamps for $22 is calculated by dividing $22 by the unit rate.
So, we have:
Hence, 40 stamps would cost $22
Read more about unit rates at:
Answer:
Alberto is incorrect. Perimeter is 42 units.
Step-by-step explanation:
Given:
The vertices of the triangle are
Perimeter of a triangle of length and width
is given as:
Here,
Distance between two points and
is given as:
So, the length ST is,
Width TU is,
Therefore, the perimeter is given as:
Perimeter = units.
Hence, the perimeter written by Alberto is incorrect as perimeter is not 18 units bu 42 units.