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3 years ago

4. How many real-number solutions does the equation have?

1 answer:

5 0

2 solutions. This is because the parabola will cross the x axis twice. We know this because -5 means the vertex will be 5 units below the x axis. and the parabola opens upwards because the first coefficient is positive. Hope this helped :)

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What is the range of f(x)=1/2^x

SCORPION-xisa [38]

Downloaded Photomath it’s going to help you a lot

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3 years ago

Pls help me with this multiple choice !

s2008m [1.1K]

Answer:

B. x = 14, y = 14

Step-by-step explanation:

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3 years ago

I need help on the rest before I go to cheer

RideAnS [48]

For number 12 the answer is 15.36

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3 years ago

I really need help quick

Natali [406]

Answer:

$\sf x=2+\sqrt{6},\:x=2-\sqrt{6}$

Explanation:

$\sf y = x^2 -4x$

given that y = 2

$\sf x^2 -4x = 2$

$\sf x^2 -4x -2 = 0$

using quadratic formula:

$\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \ \ \ when \ ax^2 + bx + c = 0$

$\rightarrow \sf x_{1,\:2}=\dfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:1\cdot \left(-2\right)}}{2\cdot \:1}$

$\rightarrow \sf x_1=\dfrac{-\left(-4\right)+2\sqrt{6}}{2\cdot \:1},\:x_2=\dfrac{-\left(-4\right)-2\sqrt{6}}{2\cdot \:1}$

$\rightarrow \sf x=2+\sqrt{6},\:x=2-\sqrt{6}$

in decimals:

$\rightarrow \sf x=4.45 , \ -0.45$

5 0

2 years ago

Help please! ASAP if you can =) Picture attatched

zloy xaker [14]

It would be D

Hope this helps! :)
~Zain

8 0

3 years ago

Read 2 more answers