3 years ago

Number17) Find length of CD.

Mathematics

1 answer:

lana [24]3 years ago

4 0

Answer:

2.4

Step-by-step explanation:

similar triangles

Therefore

4/CD = 5/3

CD= 12/5

You might be interested in

X -1 3 5 y 7 3 1 find the average rate of change from x=-1 to x=5

zloy xaker [14]

<span>X -1 3 5
y 7 3 1 </span>

avgroc = ( 1 -7) / (5 - -1) = -6/6 = -1

7 0

3 years ago

A robotic machine fills containers with an acid solution at the rate of 50 + 5 t milliliters (mL) per second, where t is in seco

Alika [10]

Answer:

12,000

Step-by-step explanation:

The machine fills the containers at a rate of 50+5t milliliters (mL) per second.

Therefore, the rate of change of the number of containers, N is:

$\dfrac{dN}{dt}=50+5t, 0\leq t\leq 60$

$dN=(50+5t)dt\\$Taking integrals of both sides\\\int dN=\int (50+5t)dt\\N(t)=50t+\frac{5t^2}{2}+C $(C a constant of integration)\\\\When t=0, , No containers are filled, therefore:$ N(t)=0\\0=50(0)+\frac{5(0)^2}{2}+C\\C=0\\$Therefore, N(t)=50t+2.5t^2$