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8_murik_8 [283]
3 years ago
10

Is 7 1/5 times 49 7/5 equivalent to 49

Mathematics
1 answer:
Stella [2.4K]3 years ago
3 0
No, 7 1/5 x 49 7/5 = 362.88
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identify the coordinates of four points on the line with each given slope and y-intercept. slope=-1 and that y-intercept=8
VladimirAG [237]

Answer:

[-1, 9], [-2, 10], [-3, 11], [1, 7]

Step-by-step explanation:

Starting from the y-intercept of [0, 8], I did <em>rise</em><em>\</em><em>run</em><em> </em>by moving one block <em>north</em><em> </em>over <em>one</em> block <em>west</em><em> </em>for the first three coordinates, but retracing back to the y-intercept, I moved one block <em>south</em><em> </em>over <em>one</em> block <em>east</em> for the last coordinate. It does not matter where you go, as long as you follow the pattern within this <em>rate</em><em> </em><em>of</em><em> </em><em>change</em><em> </em>[<em>slope</em>].

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3 years ago
Determine the domain of the function, and choose the correct interval and inequality notations,
pickupchik [31]

Answer:

<u></u>

  • <u>See below</u>

Explanation:

Determining the <em>domain</em> of the function P(x) = 2x + 8 is very trivial and does not require the uses of separate intervals.

The domain of a function is the set of input values (x) for which the function is defined. Thus, the domain of P(x) = 2x + 8 is all the real number, which in interval notaion is:

  • (- ∞, ∞)

The symbol ∞ is used to indicate that there is not limit for the value of x: it can goe from any negative number to any positive number).

For didactic purposes let's determine the domain of the function

P(x) = 2/(x+8).

In this case, the function is not defined when the denominator equals 0.

Then, the domain excludes the values for which x + 8 = 0.

  • x + 8 = 0 ⇒ x = - 8.

Then, the solution is all the real numbers different to - 8.

In <em>interval notation</em> it is:

  • (- ∞, -8) ∪ (-8, ∞)

In form of <em>inequaliy</em> that is:

  • x < - 8 ∪ x > - 8

That means, all the real numbers less than - 8 and all the real numbers greater than 8.

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3 years ago
PLEASE HELP ASAP, FOUR MATH PROBLEMS, solving linear equations, using elimination and subtraction method
Rus_ich [418]

Substitution means making one formula equal to a variable in the second formula to plug it in, and elimination means the cancelling out of one variable in order to make it easy to solve.

1. x-4(-x+5)=10            

  x+4x-20=10

  5x=30

  x=6, plug in 6 into original equation, y=-1

2. <u>-1(2x</u>-5y=6)

    <u>2x</u>+3y=-2    underlined means cancelled, so you add the rest up on each side

    5y+3y=-6+-2

    8y=-8

    y=-1, plug in this value to original equation, x=.5

3. 2(x+5)=2x+10

   2x+10=2x+10

   Infinite solutions

4. y=<u>4x</u>-3

-<u>4</u>(y=<u>x</u>+6)  underlined means cancelled

-3y=-27

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4 years ago
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How to find area of a composite shape
AlekseyPX
You need to cut the shape into other shapes that you know the formula off
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Lemur [1.5K]

*+:。.。 I put the answer in the comments, for people who’ve run out of answers! 。.。:+*

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3 years ago
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