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stealth61 [152]
3 years ago
10

What is the solution set of -x^2-6<0 ?

Mathematics
1 answer:
natita [175]3 years ago
3 0

Answer:

All real numbers

Step-by-step explanation:

Let's solve your inequality step-by-step.

−x2−6<0

Let's find the critical points of the inequality.

−x2−6=0

−x2−6+6=0+6(Add 6 to both sides)

−x2=6

−x2

−1

=

6

−1

(Divide both sides by -1)

x2=−6

x=±√−6(Take square root)

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katrin2010 [14]

Answer:

The correct answer is second option  option

9¹/⁸ ˣ

Step-by-step explanation:

<u>Points to remember</u>

<u>Identities</u>

ᵃ√x = = x¹/ᵃ

√x = x¹/²

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<u>To find the correct option</u>

It s given that,

(⁴√9)¹/² ˣ

By using the above identities we can write,

(⁴√9)¹/²ˣ = (9¹/⁴)¹/²ˣ     [ since ⁴√9 = 9¹/⁴]

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9¹/⁸ ˣ

 

8 0
3 years ago
The perimeter of a playing field for a certain sport is 214 ft. The field is a rectangle, and the length is 41 ft longer than th
Shtirlitz [24]

Answer:

width: 33 ft

length: 74 ft

Step-by-step explanation:

The perimeter of a rectangle is calculated by adding all of the sides together which includes two lengths and two widths. Since the formula for the length is given (l = 41ft + w) and the perimeter is given, then we can simply use the perimeter formula and substitute the value of length with its formula which would only leave us with one variable in the equation w. Now we must solve for w.

l + l + w + w = 214

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4w = 132 ... divide both sides by 4

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Finally, we can see that the value of the width is 33 ft . Now we plug this value into the formula for length to calculate its value.

l = 41 + w

l = 41 + 33

l = 74 ft

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4 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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TiliK225 [7]

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