3 years ago

Simplify.

Mathematics

1 answer:

sveta [45]3 years ago

6 0

C I think I hope this is correct

You might be interested in

Select the correct answer

motikmotik

Answer:

Step-by-step explanation:

80%=4/5

4/5 of 20 is 4

They lose 4 matches.

5 0

3 years ago

The length of a rectangle is increasing at a rate of 4 cm/s and its width is increasing at a rate of 8 cm/s. When the length is

iVinArrow [24]

Answer:

Step-by-step explanation:

$A = lw \nl\frac{\dA}{\dt}$ = $\frac{\dA}{\text{d}l}\frac{\text{d}l}{\dt} + \frac{\dA}{\text{d}w}\frac{\text{d}w}{\dt}$ = $w\frac{\text{d}l}{\dt} + l\frac{\text{d}w}{\dt}$ $\nll = 20 \text{ cm}$ \;\; $\frac{\text{d}l}{\dt} = 8 \text{ cm/s}$ \;\;w = 10 \text{ cm}, \;\; $]\frac{\text{d}w}{\dt} = 3 \text{ cm/s}$ $\nl\frac{\dA}{\dt} =( 10 \text{ cm} )( 8 \text{ cm/s} ) + ( 20 \text{ cm} )( 3 \text{ cm/s} ) =140 \text{ cm}^2\!\text{/s}
$