1 year ago

Frrrrrrrrreee points

Mathematics

2 answers:

mylen [45]1 year ago

6 0

Thank youuuuuuuuuuuuuuu

salantis [7]1 year ago

5 0

Thanks! :)

Hope you’re having a wonderful day!!

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Solve x^2+2x+7=0 using the quadratic formula.

Aneli [31]

Answer:

$x=-1\pm \sqrt{6}i$

Step-by-step explanation:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$x=\frac{-(2)\pm\sqrt{2^2-4(1)(7)}}{2(1)}$

$x=\frac{-2\pm\sqrt{4-28}}{2}$

$x=\frac{-2\pm\sqrt{-24}}{2}$

$x=\frac{-2\pm\sqrt{-1*24}}{2}$

$x=\frac{-2\pm\sqrt{-1}\sqrt{24}}{2}$

$x=\frac{-2\pm i\sqrt{4*6}}{2}$

$x=\frac{-2\pm i\sqrt{4}\sqrt{6}}{2}$

$x=\frac{-2\pm2i\sqrt{6}}{2}$

$x=-1\pm \sqrt{6}i$

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2 years ago

Sam can prepare 20 wall paintings in 4 weeks. How much time will he need to

Nadusha1986 [10]

Answer:
20=4 weeks
40=8 weeks
60=12 weeks
80=16 weeks
Hope I helped :)

3 0

3 years ago

Y=|x| (What is the range of this function?)

olasank [31]

Answer:

Any number both positive or negative.

y = {all numbers}

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

PLEASE SOMEONE HELP I CANT DO THIS AND IM LITERALLY BALLING MY EYES OUT.

kirza4 [7]

Answer: -x

step-by-step explanation:

convert the mixed numbers to improper fractions 125/6 = 77/6

77/6x-14x+1/6x

77/6x-14x+1/6x = -1 times x

= 1 times x

multiply 1 times x = x

= x

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2 years ago

The measures of the sides of a triangle are 2x + 3, 8x – 4, and x^2 Write an expression that describes the perimeter of the tria

lawyer [7]

P = 2x+3+8x-4+x² = x² +10x-1

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2 years ago

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