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4 years ago

Solve x4 − 7x2 − 18 = 0

Mathematics

2 answers:

babunello [35]4 years ago

5 0

Thw answer is X = 3 or -3

Andrew [12]4 years ago

3 0

Answer:

the answer is

x=±3,±√2

Step-by-step explanation:

(x^2−9)(x2+2)=0

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Which statements are true of the quadrilateral she constructed? Select three options.

allochka39001 [22]

Answer:

the 2nd one, 3rd one, and 5th one

Step-by-step explanation:

5 0

3 years ago

At LaGuardia Airport for a certain nightly flight, the probability that it will rain is 0.14 and the probability that the flight

morpeh [17]

Answer:

The appropriate answer is "0.437".

Step-by-step explanation:

Given:

P(rain) = 0.14

then,

P(no-rain) = 1-P(rain)

= 1-0.14

= 0.86

P(delay) = 0.16

P(rain and on time) = 0.79

then,

By using the conditional probability, we get

⇒ $P(A|B)=\frac{P(A \cap B)}{P(B)}$

or,

⇒ $P(no \ rain|delay) = \frac{P(no \ rain \cap delay)}{P(delay)}$

By substituting the values, we get

⇒ $=\frac{0.07}{0.16}$

⇒ $=0.437$

5 0

3 years ago

Which function in vertex form is equivalent to f(x) = 4 + x2 – 2x?

Kazeer [188]

Answer:

The vertex form of the function is $f(x)=(x-1)^2+3$ .

Step-by-step explanation:

The given function is

$f(x)=4+x^2-2x$

The vertex form is

$f(x)=(x-h)^2+k$

Rewrite the given function

$f(x)=(x^2-2x)+4$

$-\frac{b}{2a}=-\frac{-2}{2(1)}=1$

Add and Subtract $(-\frac{b}{2a})^2$ .

$f(x)=(x^2-2x+1)+4-1$

Use $(a-b)^2=a^2-2ab+b^2$

$f(x)=(x-1)^2+3$

Therefore the vertex form of the function is $f(x)=(x-1)^2+3$ .

7 0

3 years ago

Read 2 more answers

the diagram shows the distance between city P and city S and city T. which measurement is closest to x, than the distance betwee

kondor19780726 [428]

Answer:

1352 miles

Step-by-step explanation:

since city t, s, and P make a right angle we can use the Pythagorean theorem to find the hypotenuse (distance from t to p) 1180 squared=1,392,400 and 660 squared =435,600 so now we add them together and take its square root which is 1352.0

4 0

3 years ago

Is a acute triangle a right triangle

hoa [83]

No, because it has a measure under 90 degrees

3 0

3 years ago

Read 2 more answers