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2 years ago

Please help me with this homework please

Mathematics

1 answer:

agasfer [191]2 years ago

5 0

Answer:

1. 13ft

2. 225ft^2

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Step-by-step explanation:

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2 years ago

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PLEASE HELP <br> simplify (√ 2) (3√ 2)

Vikentia [17]

Answer:

Step-by-step explanation:

When you multiply the square root of something with itself, your answer will be the number inside the radical sign.

This means that we should get 3*2=6.

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3 years ago

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In the diagram, lines and intersect at E. If m∠AED = 3x + 11 and m∠CEB = 125, find x. A. 19 B. 38 C. 42 D. 55

Lady_Fox [76]

3X+11=125

3X=125-11

3X=114

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X=38

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3 years ago

Help ASAP ! Show work

DanielleElmas [232]

Answer:

Step-by-step explanation:

Using formula $a^{2} + b^{2} =c^{2}$

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3 years ago

What is the solution set of x2 + 5x + 1 = 0?

DerKrebs [107]

Answer:

$\huge\boxed{\left\{-\dfrac{5+\sqrt{21}}{2};\ \dfrac{-5+\sqrt{21}}{2}\right\}}$

Step-by-step explanation:

$x^2+5x+1=0\\\\\text{Use the quadratic formula:}\\\\\text{For}\ ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta < 0,\ \text{then the equation has no real solution}\\\text{if}\ \Delta=0,\ \text{then the equation has one real solution}\ x=\dfrac{-b}{2a}\\\text{if}\ \Delta>0,\ \text{then the equation has two real solution}\ x=\dfrac{-b\pm\sqrt{\Delta}}{2a}$

$\text{We have}\\\\a=1,\ b=5,\ c=1\\\\\Delta=5^2-4(1)(1)=25-4=21>0\\\\x=\dfrac{-5\pm\sqrt{21}}{2(1)}=\dfrac{-5\pm\sqrt{21}}{2}$

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3 years ago