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3 years ago

Don't steal points

Mathematics

1 answer:

Tomtit [17]3 years ago

6 0

Answer:

The ceiling is lower than 3 meters.

Step-by-step explanation:

In the above, the product is less than 3. In this case, it will not include 3 as a choice, as if it would, the $\leq$ would be used.

This means that x would be any number that is less than 3. The only choice that gives a choice that means less than by the terms definition is A) The ceiling is lower than 3 meters.

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50 points! I understand A. and B. but I would really appreciate help with C.

FromTheMoon [43]

Answer:

$51.72\text{ cells per hour}$

Step-by-step explanation:

So, the function, P(t), represents the number of cells after t hours.

This means that the derivative, P'(t), represents the instantaneous rate of change (in cells per hour) at a certain point t.

So, we are given that the quadratic curve of the trend is the function:

$P(t)=6.10t^2-9.28t+16.43$

To find the instanteous rate of growth at t=5 hours, we must first differentiate the function. So, differentiate with respect to t:

$\frac{d}{dt}[P(t)]=\frac{d}{dt}[6.10t^2-9.28t+16.43]$

Expand:

$P'(t)=\frac{d}{dt}[6.10t^2]+\frac{d}{dt}[-9.28t]+\frac{d}{dt}[16.43]$

Move the constant to the front using the constant multiple rule. The derivative of a constant is 0. So:

$P'(t)=6.10\frac{d}{dt}[t^2]-9.28\frac{d}{dt}[t]$

Differentiate. Use the power rule:

$P'(t)=6.10(2t)-9.28(1)$

Simplify:

$P'(t)=12.20t-9.28$

So, to find the instantaneous rate of growth at t=5, substitute 5 into our differentiated function:

$P'(5)=12.20(5)-9.28$

Multiply:

$P'(5)=61-9.28$

Subtract:

$P'(5)=51.72$

This tells us that at exactly t=5, the rate of growth is 51.72 cells per hour.

And we're done!

7 0

3 years ago

For which x is f(x)?=-3

Rzqust [24]

Answer:

the answer would be x=10

Step-by-step explanation:

cuz you do a t-chart the put x/-3 then + 10 then - witch is

x=10

8 0

3 years ago

Write 9x - 8 as a verbal expression Please the fast as possible!

Natalka [10]

Answer:

8 subtracted from the product of 9 and x

Hope this helps!

4 0

2 years ago

Ticket costs £63 plus a booking fee of 3%. What is the total price of the ticket ?

Arte-miy333 [17]

The answer is £64.89.

Step by Step:

Take the original price multiplied by 0.03 ( the percent of a booking fee ) and add those amounts together.

Equation: 63 + 1.89 = 64.89

5 0

3 years ago

A study of body fat on 250 men collected measurements of 12 body parts as well as the percentage of body fat that the men carrie

MrMuchimi

Answer:

bicep circumference is a measurement of our body part we need to collect all our so we know our body fats.

8 0

3 years ago