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Alexxx [7]
3 years ago
14

Wapi simplified an expression. His work is shown below.

Mathematics
2 answers:
posledela3 years ago
8 0

Answer:i did it on edg and i got 100 on test its step 3

Step-by-step explanation:

I got 100 :D

-BARSIC- [3]3 years ago
5 0

Answer:

Step 3

Step-by-step explanation:

7( 8.5-1.5) +8 ÷2

PEMDAS

Parentheses

7*7 +8 ÷2

Then multiplication and division from left to right

49 +8 ÷2

We are still on multiplication and division

49+4

So step 3 is the first mistake

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Is 4 a solution to the inequality x>0 and x< 7
nadezda [96]

Hi,

4 > 0, it's correct so 4 is a solution.

0 < 7 , the same as the first.

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The ordered pairs (1, 25), (2, 36), (3, 49), (4, 64), and (5, 81) represent a fixnction. what is a rule that represents this fun
nlexa [21]
By inspection we can see that <span>(1, 25), (2, 36), (3, 49), (4, 64), and (5, 81)

(1,\ 5^2),\ (2,\ 6^2),\ (3,\ 7^2),\ (4,\ 8^2),\ and\ (5,\ 9^2) \\  \\ =(1,\ (1+4)^2),\ (2,\ (2+4)^2),\ (3,\ (3+4)^2),\ (4,\ (4+4)^2),\  \\ and\ (5,\ (5+4)^2)

Therefore, the rule that represents this function is y=(x+4)^2.</span>
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3 years ago
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Find the value of p p^2x^2-12x+p+7 one of the zero is 3/2
wel

Answer:

  p = 2  or  p = -2 4/9

Step-by-step explanation:

We can substitute x=3/2 into the equation and solve for the values of p that make the result be zero.

  p^2(3/2)^2 -12(3/2) +p +7 = 0

  9/4p^2 -18 + p + 7 = 0 . . . . eliminate parentheses

  9p^2 +4p -44 = 0 . . . . . . simplify and multiply by 4

  (9p +22)(p -2) = 0 . . . . . factor

Values of p that make 3/2 be one of the zeros are ...

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_____

<em>Additional comment</em>

The <em>zero product rule</em> tells you a product will be zero if and only if a factor is zero. Hence the solutions to the quadratic are values of p that make the factors zero.

  9p +22 = 0   ⇒   9p = -22   ⇒   p = -22/9

  p -2 = 0   ⇒   p = 2

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For p=2, the solution 3/2 has multiplicity 2. For p=-22/9, the other zero is x=123/242.

8 0
2 years ago
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Answer:

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Step-by-step explanation:

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velikii [3]

Answer: The amount of money the school charges for all n tickets.

Step-by-step explanation:

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3 years ago
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