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Nastasia [14]
3 years ago
9

If a polynomial function f(x) has roots -4,2,1 and square root of 11 what must be also a root of f(x) ?

Mathematics
1 answer:
Zigmanuir [339]3 years ago
5 0

Answer:

- \sqrt{11}

Step-by-step explanation:

Radical roots occur in conjugate pairs

Thus if \sqrt{11} is a root then

- \sqrt{11} is also a root

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Please help i need this answer quick for a test
Oksi-84 [34.3K]

Answer: the depth of the trench is 3685 ft

Step-by-step explanation:

The hole is approximately 347 yards wide. This means that the diameter of the hole is 347 yards.

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

Where

r represents the radius of the cylinder or hole.

h represents the height or depth of the cylinder or hole.

π is a constant whose value is 3.14

From the information given,

Volume = 348289500 ft³

Radius = diameter/2 = 347/2 = 173.5 ft

Therefore,

348289500 = 3.14 × 173.5² × h

348289500 = 94521.065h

h = 348289500/94521.065

h = 3685 feet

4 0
3 years ago
An item has a listed price of $40. If the sales tax rate is 7%, how much is the sales tax (in dollars)?
labwork [276]
The tax is $2.80 but the total is $42.80
6 0
4 years ago
Sila jogged 12 kilometers today and wants to know how far she traveled in feet. What error did Sila make while converting from k
ozzi

Answer:

umm i'm not rly sure what's going on here...but here's how i'd do it

Step-by-step explanation:

3280.84x12=39370.08 which is about 3,9370 feet.

to double check let's do an algebraic expression

1/3280.84=x/12        cross multiply

x(1)=3280.84(12)       simplify

x=39370.08

hope that helped.

8 0
3 years ago
Solve for t <br> 1/2t + 6 = -7
zhuklara [117]
1/2t+6=-7
1/2t=-13
t=-26
7 0
3 years ago
Read 2 more answers
Which is the best way to solve the equation x2 = n?
Gnom [1K]

n - no solutions in real numbers

n=0 \Rightarrow x=0

n>0 \Rightarrow x=\sqrt n \vee x=-\sqrt n

7 0
3 years ago
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