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Anna71 [15]
2 years ago
9

Make a number line and show all values of x such that: x less than or equal to -2 or x<-5

Mathematics
1 answer:
Mila [183]2 years ago
5 0
I uploaded the answer here is the link : jim hb/
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What are the possible values of x in 8x2 + 4x = -1?
Westkost [7]

Answer:

The possible values of x are:

x= \frac{-1+\sqrt{3}}{4} \,\,or\,\, x= 0.18

and

x= \frac{-1-\sqrt{3}}{4} \,\, or \,\, x= -0.68

Step-by-step explanation:

8x^2+4x+1=0

Using Quadratic formula to solve this equation:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\a = 8 \,\, b = 4\,\, c = -1\\Putting \,\, values \,\, in \,\, the\,\, equation\\x= \frac{-4\pm\sqrt{(4)^2-4(8)(-1)}}{2(8)}\\x= \frac{-4\pm\sqrt{16+32}}{16}\\x= \frac{-4\pm\sqrt{48}}{16}\\x= \frac{-4+ \sqrt{48}}{16} \,\, and \,\, x= \frac{-4- \sqrt{48}}{16}\\x= \frac{-1+ \sqrt{3}}{4} \,\, and \,\, x= \frac{-1- \sqrt{3}}{4}

The possible values of x are:

x= \frac{-1+\sqrt{3}}{4} \,\,or\,\, x= 0.18

and

x= \frac{-1-\sqrt{3}}{4} \,\, or \,\, x= -0.68

4 0
3 years ago
5th grade math homework I really need help on this
adell [148]
So basically you need to multiply 3000x4000 in two ways? If so you can use basic multiplication and an area model
8 0
2 years ago
Read 2 more answers
Ms. Durham makes delicious chili. Each batch makes about 900 in^3 of chili. Will a crockpot that is 15 inches high and a diamete
Mashutka [201]

Answer:

Volume of the Crockpot = πr^2h

= 3.14 x 6 x 6 x 15

= 3.14 x 540 in^3

Volume of double batch of chili = 900 x 2 = 1800 in^3

3.14 x 540/1800 = 9.42/10 = 0.942 < 1

Since the value we found by dividing the volume of Crockpot by double batch of chili is less than 1, we can say that the Crockpot will not hold the double batch of chili

Hope this helps!

3 0
3 years ago
Abby's auto wash earns revenues of $14 per customer. After serving 2 customer, how much revenue will abby's auto wash have?​
ruslelena [56]

Answer:14+14=28

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Am I correct on 12?
lukranit [14]
Yes, HL would be correct.

This states that if two hypotenuses are congruent (they have the same one)

and if one pair of legs are congruent,

the figure is congruent.

I hope this helps!
~cupcake
7 0
3 years ago
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