What is the middle term of the product of (x + 5)(x + 2)? 7x 10x 18x

Mathematics

2 answers:

Misha Larkins [42]3 years ago

7 0

The awnser is 7x

(x+5)(x+2)

x(squared)+2x+5x+10

x(squared)+7x+10

Svet_ta [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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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$