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Gnoma [55]
3 years ago
12

Please help me answer these 3 questions. Also, please EXPLAIN how you got the answer because sometimes people answer but don't e

xplain it.

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0

Answer:

3 and 4

Step-by-step explanation:

4. 28/105 is what it is trying to explain

3. -3/12 is what it is trying to explain

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HELP!<br> What is the missing term? What is the rule? 8 9/10, 7 7/10, 6 1/2 , _________
KengaRu [80]

Answer:

5 3/10

Step-by-step explanation:

You subtract 1 1/5 from the number (n).

(In equation) x = n - 1 1/5

5 0
3 years ago
Read 2 more answers
Factor x^4 + xy^3 + x^3 + y^3. Hint, first factor a monomial. Please explain why!!!
almond37 [142]

Pull an x from the first two terms

x(x^3 + y^3) + (x^3 + y^3)   Now x^3 + y^3 is a common factor.

(x^3 + y^3)*(x + 1) That should be far enough. It can be factored further by factoring (x^3 + y^3) but there is no point because you can't do anything after that. But in case you want to know how x^3 + y^3 factors

(x^3 + y^3) = (x + y)(x^2 - xy + y^2)

Which means you could write original polynomial as

(x + y)(x^2 - xy + y^2)(x + 1)

Part B

You factored the x out of xy^3 so that you would have a common factor (x^3 + y^3) to pull out as a common factor for the whole polynomial.

3 0
3 years ago
Please help... How many odd perfect squares are between 5 and 211?
frez [133]

Answer:

we conclude that the total number of perfect odd squares between 5 and 211 will be: 6

Step-by-step explanation:

Let us check by taking squares

  • 3² = 9
  • 5² = 25
  • 7² = 49
  • 9² = 81
  • 11² = 121
  • 13² = 169

As taking 14² = 256 would exceed 211, and 1² = 1 is smaller than 5.

Therefore, we conclude that the total number of perfect odd squares between 5 and 211 will be: 6

8 0
3 years ago
A tanker truck has overturned and is spilling oil onto the highway. Amazingly, the region covered by the oil spill maintains a p
Sav [38]

Answer:

The radius of the oil spill growing at 2 feet per minute

Step-by-step explanation:

Area of a circle is

A=\pi r^2

Differentiating A with respect to r,

\dfrac{dA}{dr} = 2\pi r

When A=100\pi,

100\pi = \pi r^2

r = 10

The rate of growth of the spill is

\dfrac{dA}{dt} = 40\pi

This is equivalent to

\dfrac{dA}{dt} = \dfrac{dA}{dr} \times \dfrac{dr}{dt}

\dfrac{dr}{dt} = \dfrac{dA}{dt}/\dfrac{dA}{dr} = \dfrac{40\pi}{2\pi r} = \dfrac{20}{r}

\dfrac{dr}{dt} = \dfrac{20}{10} = 2

7 0
3 years ago
Read 2 more answers
What is the slope of the line in this graph?
Nina [5.8K]

The slope of the line 5/7.

How do i know this?

Well the slope of a line is considered as rise/run.

So we start at the beginning and then go up until the line intersects a corner again. Then we mark that down.

Go back to the beginning and count how many times it takes to reach the height of the intersected corner. So it is 5.

Then we go to the right until we reach the point. And it takes 7 squares to reach it, so the slope it 5/7.

Your welcome! :D

7 0
3 years ago
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