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Greeley [361]
2 years ago
5

GIVING BRAINLEST FOR CORRECT ANSWER (On select it says "IS" or "Is Not")

Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
8 0

Answer:

Is

Step-by-step explanation:

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What does subtracting a negative do ?
salantis [7]
If you subtract negative from negative the answer will be positive if u subtract a nevagative from a positive it will become a negative.
4 0
3 years ago
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Two times a number is equal to the absolute value of the quantity "sixty-three less than five times that number." What could the
ANTONII [103]

Answer:

The number is 21.

Step-by-step explanation:

First you need to solve for n.

So the equation would be 2n = |5n-63|

First you'd subtract 5n from each side, that would give you -3n=|-63|

Then you need to divide each side by -3 to get n=21.

                       ~~~~~

To check, you can just plug 21 back into the equation.

2(21) = |5(21) - 63|

42 = |105-63|

42 = |42|

42 = 42

5 0
2 years ago
6. Using the discriminant, determine the value of k that will give 1 solution (i.e. discriminant equals zero) y = kx²-4x + 4 ​
Gwar [14]

Answer:

k = 1

Step-by-step explanation:

<u>Discriminant</u>

b^2-4ac\quad\textsf{when }\:ax^2+bx+c=0

\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}

\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}

\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}

As we need to determine the value of k that will give <u>one solution</u>, set the <u>discriminant to zero</u>.

<u>Given equation</u>:

y=kx^2-4x+4

Therefore:

  • a = k
  • b = -4
  • c = 4

Substitute these values into the discriminant and solve for k:

\begin{aligned}b^2-4ac & = 0\\\implies (-4)^2-4(k)(4) & = 0\\16-16k & = 0\\16k & = 16\\\implies k & = 1\end{aligned}

4 0
1 year ago
15-a=20 what is the vaule of a?
olganol [36]

Answer:

15a=20

a=20/15

a=4/3

ok

4 0
2 years ago
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ASAP please I will give you five stars
PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

I think it's the 2nd one

7 0
3 years ago
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