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Elodia [21]
2 years ago
13

P(n)=2n^2-6n find p(4)

Mathematics
1 answer:
Igoryamba2 years ago
4 0

let's solve for p(4) :

  • 2 {n}^{2}  - 6n

  • 2 \times (4) {}^{2}  - (6 \times 4)

  • (2 \times 16) - 24

  • 32 - 24

  • 8
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The graph shows the velocity f(t) of a runner during a certain time interval:
omeli [17]

Answer:

Option B

Step-by-step explanation:

  • (0,2)
  • (6,8)
  • (8,0)

Slope

  • m=8-2/6
  • m=6/6=1

And

  • m=0-8/8-6
  • m=-8/2
  • m=-4

These are acceleration

Y intercept is (0,2) as x coordinate is 0

This is initial velocity 2m/s

The runner stopped at 8s

8 0
2 years ago
Simplify this answer <br><br> please help!
aliya0001 [1]

Answer:

(hope this helps can I pls have brainlist (crown) ☺️)

Step-by-step explanation:

7^8 x 7^3 x 7^4 / 7^9 7^5

= 7^(8+3+4) / 7^(9+5)

= 7^15 / 7^14

= 7^(15-14)

= 7.

When the bases of the numbers are the same when multiplying numbers with exponents, you can just add the exponents like so:

7^8 x 7^3 x 7^4= 7^15

Now, look at the rest of the simplified equation and do the same to the denominator:

 7^15 / 7^9 x 7^5 ⇒ 7^15/ 7^14

When the bases are the same in the fraction, you are allowed to subtract the exponents. This will lead you to the simplified answer  = 7^15-14 = 7^1  = 7

5 0
2 years ago
Help it’s due right now
Likurg_2 [28]

Answer: (0.120)(x) = 78 ; x is 65

Step-by-step explanation:

4 0
3 years ago
Simplify (-2x-3)-(3x²-8x+9) <br>in standard form.
Musya8 [376]
(-2 x -3) - (3x^2 - 8x + 9)
     -6     -    9x - 17x
    -6          -        -8x
              -14x

hope this helps,
Batgirl12
8 0
3 years ago
This is my next Trigonometry question I am needed help on- I just want to be sure I've got it right, or if not, then the steps I
makkiz [27]
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so. hmm which is it? the +/- ?   well, neverminding for a second, the value of tangent, just looking at the sign, the tangent is positive,

tangent = opposite/adjacent.... so that only happens, when both are the same sign, + or - both

now, we know the sine is -1/5.. if the sine is negative, the cosine also has t to be negative, so we'd use the -2√(6) = a

thus     \bf cos(\theta)=\cfrac{adjacent}{hypotenuse}\implies cos(\theta)=\cfrac{-2\sqrt{6}}{5}
4 0
2 years ago
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