What is the middle product of (-2x 1)(-3x - 5)? User: Factor 64a2 - 48a + 9.

Answers

Answer 1

Answer: What is the middle product of (-2x 1)(-3x - 5)
= (-2x -1)(-3x - 5)
= 6x^2 + 3x + 10x + 5
= 6x^2 + 13x + 5

So the middle product is 13x.

Factor 64a2 - 48a + 9.
64a2 - 48a + 9
(8a - 3) (8a - 3)

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How you work out 7 (-5v-8)

Answers

7(-5v-8)
distribute the 7 to the numbers in the parentheses
7 multiplied by-5v= -35v
7 multiplied by -8= -56
place them: -35v-56
hope i helped (theres a pic too!)

7(-5v - 8)
7(-5v) + 7(-8)
-35v - 56

What does this mean?

Answers

0 is less than t is less than or equal to 10

There are 2,100 bacteria in a circular petri dish. The dish has a radius of 40 millimeters. What is the approximate population density? (Use 3.14 for π) Area of a circle = πr2 0.02 bacteria per square millimeter 0.42 bacteria per square millimeter 2.39 bacteria per square millimeter 52.5 bacteria per square millimeter

Answers

The population density is 0.418 bacteria per mm².

What is Area of Circle?

A circle's area is the area that it takes up in a two-dimensional plane.

The formula for area of circle is, A = πr², where r is the radius of the circle. The unit of area is the square unit, such as m², cm², etc.

Given:

Radius= 40 mm

So, Area of petri dish = πr²

= 3.14x(40 mm)²

= 3.14 x 1600 mm²

= 5024 mm²

and, Population Density

= 2100 / 5024

= 0.418 bacteria per mm²

Hence, the population density is 0.418 bacteria per mm².

Learn more about area of circle here:

brainly.com/question/28642423

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Population Density = # bacteria/area

Area = πr^2
= 3.14•(40 mm)^2
= 3.14•1600 mm^2
= 5024 mm^2

Pop Density = 2100 / 5024
= 0.418 bacteria per mm^2

The answer is 0.42 bacteria per square mm

What is 4 to the power of 0 equal to?

Answers

Any number to the power of zero is one. Think of it like this - a power is basically multiplying a certain number of the same integer together. So, if we multiply 0 fours together, we just get 1. Alternatively, consider it like this - 4 to the power of one divided by four to the power of one is equal to four to the power of zero, so 4/4=1 is 4 to the power of zero. Therefore, 4^0 is 1.

any number to the zero power is equal to 1

an exponent is how many times you multiply something by itself
remember that x^2=x^2 times 1
when you have x^0 then that means x^0 times 1 and then since there are no x's, the resulting value is just 1

the answer is 1

How do you graph y=2