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Jet001 [13]
3 years ago
11

Find the domain and range

Mathematics
1 answer:
LiRa [457]3 years ago
6 0

Answer:

Domain: x = all reals

Range: y is less than or equal to -4

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Use the quadratic formula to solve for the roots of the following equation.<br> x 2 – 4x + 13 = 0
Artyom0805 [142]
  • Quadratic Formula: x=\frac{-b\pm \sqrt{b^2-4ac}}{2a} , with a = x^2 coefficient, b = x coefficient, and c = constant

With our equation, plug in the values:

x=\frac{4\pm \sqrt{(-4)^2-4*1*13}}{2*1}

Next, solve the exponent and multiplications:

x=\frac{4\pm \sqrt{16-52}}{2}

Next, solve the subtraction:

x=\frac{4\pm \sqrt{-36}}{2}

Next, factor out i (i = √-1):

x=\frac{4\pm \sqrt{36}i}{2}

Next, solve the square root:

x=\frac{4\pm 6i}{2}

Lastly, divide and <u>your answer is:</u>

x=2\pm 3i

5 0
3 years ago
Read 2 more answers
After Squints gets the team banned from the pool, the guys from the Sandlot decide they need to build their own pool. They decid
pishuonlain [190]

Answer:

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First we need to find the volume of the pool. This lets us know how much dirt must be moved.

25*19*5 = 2,375 cubic feet total.

Divide that by 4.53 cubic feet for each load, and we get 524.282 truckloads. Round up to the nearest integer for a final answer of 525 truckloads.

7 0
3 years ago
X^lg(x)=100^x find x
Wittaler [7]

x^lg(x)=100^x<span>
</span>


X^lg(x)=100^x:x  |Solve \ for \ x|


<span>|Use \ logarithms \ of \ both \ sides \ of \ the \ base \ 10|&#10;&#10;</span>

<span>
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<span>lg (x ^ lg (x)) = lg (100x)&#10;&#10;</span>

<span>
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<span>lg ^ 2 (x) = 2 + lgx</span>

<span>
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lg 2 ^ x-lg x -2 = 0


lg x = 2 x = 100


lg x = -1 x = \dfrac{1}{10} = 0.1

3 0
3 years ago
Starts with z and cube it
OlgaM077 [116]
Cubed means you have to multiply it by the other number like an exponent so that means the answer is z3
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3 years ago
Here's the revenue and expenses for the month. Calculate whether Mia had a profit or loss.
Oksanka [162]

Answer:350

Step-by-step explanation:

Just take away 9,550 - 9,200 = 350

3 0
3 years ago
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