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horsena [70]
3 years ago
10

What is 3-2y+(-8y)+8.4 as a simplified expression

Mathematics
2 answers:
IRISSAK [1]3 years ago
7 0

Answer:

-10y + 11.4

I hope this helps you out

Masja [62]3 years ago
7 0

Answer:

-10y+11.4

Step-by-step explanation:

you combine -2y with -8y to get negative -10y. Then you combine 3 and 8.4 to get 11. Variables usually come first in equations, I don't think it matters, but you might want to put them first anyway.

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Is step 3 correct or would I change 5/2 into a decimal?
Rzqust [24]

Answer:

keep it man u will do ok just be careful with other problems

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If k(x) = x^2 and p(x) = k(x) + n, what is the value of n?
kodGreya [7K]

Answer:

The value of n is -6

Step-by-step explanation:

  • If the function f(x) is translated k units up, then its image is g(x) = f(x) + k
  • If the function f(x) is translated k units down, then its image is g(x) = f(x) - k
  • The vertex form of the quadratic function is f(x) = a(x - h)² + k, where a is the coefficient of x² and (h, k) is the vertex

∵ k(x) = x²

→ Its graph is a parabola with vertex (0, 0)

∴ The vertex of the prabola which represents it is (0, 0)

∵ The given graph is the graph of p(x)

∵ Its vertex is (0, -6)

∴ h = 0 and k = -6

∵ a = 1

→ Substitute them in the form above

∴ p(x) = 1(x - 0)² + -6

∴ p(x) = x² - 6

→ Substitute x² by k(x)

∴ p(x) = k(x) - 6

∵ p(x) = k(x) + n

→ By comparing the two right sides

∴ n = -6

∴ The value of n is -6

Look at the attached figure for more understanding

The red parabola represents k(x)

The blue parabola represents p(x)

8 0
2 years ago
What is -21% as a decimal
AnnZ [28]

Answer:

− 0.21

Step-by-step explanation:

Convert to a fraction, then convert to a decimal by dividing the numerator by the denominator.

5 0
3 years ago
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Tamiku [17]

Answer:

8.9

Step-by-step explanation:

Convert  √ 80  to a decimal.

8.9442719

Find the number in the tenth place  9  and look one place to the right for the rounding digit  4 . Round up if this number is greater than or equal to  5  and round down if it is less than  5 .

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How do I do numbers 23, im stuck
Vilka [71]
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