Answer:
For mean
To show the mean of height measures for 40 students, you need to write-out exactly 40 heights into a calculator and add them up.
Then divide that total number by 40.
Step-by-step explanation:
Eg for 4 students
5 , 5.1, 5.2, 5.7 = 21ft
21/4 = 5.25ft.
Apply the same method but use 40 measures in addition for calulator or long addition. Then divide by 40.
Oki so the missing angle is also 2x + 15 since that’s equal so add all three of those together and equal it to 180 and solve
Answer:
.
Step-by-step explanation:
2.
If angle A = 4x + 12 and x is given as 15 we can say that angle A is an acute triangle because its measure is less than 90° ➡ 4 × 15 + 12 = 72°
3.
if the angle BAM is a right triangle then
4x + 22 = 90 subtract 22 from the both sides
4x = 68 divide both sides by 4
x = 17
4^3
you can write it like 4 × 4 × 4
you can also call it "Four to the Third power".
