The range would be
3<x<9
Hope I helped :)
Answer:
40.32 cm²
Step-by-step explanation:
The area of the small rectangle = 7 × 4 = 28 cm²
Given the ratio of the sides of similar rectangles = a : b , then
the ratio of the areas = a² : b²
Here ratio of sides = 4 : 4.8 = 1 : 1.2
ratio of areas = 1² : 1.2² = 1 : 1.44
Let x be the area of the larger rectangle then by proportion
= ( cross- multiply )
x = 40.32
Area of larger rectangle is 40.32 cm²
Answer:
Step-by-step explanation:
Given:
In a class:
Number of boys = 6
Number of girls = 12
The teach has to select 3 students to be exempted from the test.
To find the probability that all boys students are exempted from the exam.
Solution:
Total number of students in the class =
<em>Number of ways to select 3 students among 18 from the class can be given = </em><em />
Total number of boys = 6
<em>Number of ways to select 3 students among 6 boys can be given = </em><em />
So, the probability of selecting all 3 students as boys can be given as =
⇒
⇒
⇒ (Answer)
Answer:
Step-by-step explanation:
13500/3 = 4500
4500 x 2 = 9000
When there are a number of similar calculations to do, it is convenient to program a calculator or spreadsheet to do them for you. The formula for the volume (V) of a cylinder in terms of height (h) and radius (r) is
... V = π·r²·h
You simply need to substitute the given values and determine if the result is greater than 50. For glass A, this looks like
... V = 3.14·2.25²·3 = 47.68875 . . . . . less than 50, so too small
The volumes of the other glasses are calculated in the attachment.
glass B: large enough
glass C: too small