Does anyone know this?
1 answer:
The rectangle's length is 30 inches while it's width is 24 inches.
Step-by-step explanation:
Step 1; Any rectangle's area is calculated by multiplying the rectangle's length and its width. Assume the the rectangle's length is 5x while it's width is 4x as it is given that the ratio of it's length to width is 5: 4.
Area of the rectangle = 5x × 4x = 720, 20x² = 720.
x² = = 36, x =√36 = 6.
Step 2; As we assumed length equals 5x and the width will equal 4x.
The rectangle's length = 5x = 5 × 6 = 30 inches,
The rectangle's width = 4x = 4 × 6 = 24 inches.
You might be interested in
9514 1404 393
Answer:
D
Step-by-step explanation:
Solve x = f(y) for y.
x = ∛(y/9) -4
x +4 = ∛(y/9) . . . . . add 4
(x +4)³ = y/9 .. . . . . cube
9(x +4)³ = y . . . . . . multiply by 9
The inverse function is ...
f⁻¹(x) = 9(x +4)³ . . . . . matches the last choice
Answer:
f=11
Mode=4
Median=4
Explanation:
We are given that
a.Mean of the exam score,=3.5
Score(x) frequency C.F
1 1 1
2 3 4
3 f 15(4+f=4+11)
4 13 28
5 4 32
Using the formula
b.Mode:The number which is repeat most times .
4 repeat most times
Hence, mode of all exam scores=4
N=32
N is even
Median=