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3 years ago

The circle C has equation x2 + y2 +4x - 2y - 11 = 0.

Mathematics

2 answers:

Naddika [18.5K]3 years ago

7 0

Answer:

where is circle pls send picture of circle

sleet_krkn [62]3 years ago

5 0

Step-by-step explanation:

<h2>please mark me as brainlist please </h2>

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For the function f(x) = -x^3 + 2x^2 + x - 2

kaheart [24]

Answer:

Step-by-step explanation:

$f(1)=-1^3+2*1^2+1-2=-1+2+1-2=0\\\\$

Rationnel roots are divisor of -2: -1,1,-2,2

$f(-1)=-(-1)^3+2*(-1)^2+(-1)-2=1+2-1-2=0\\\\\begin{array}{c|cccc}&x^3&x^2&x&1\\---&---&---&---&---\\&-1&2&1&-2\\x=1&&-1&1&2\\&-1&1&2&0\\\\x=-1&&1&-2\\&-1&2&0\\---&---&---&---&---\\\end {array}\\\\\\f(x)=-x^3+2x^2+x-2=(x-1)(x+1)(-x+2)\\\\$

c) see picture

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3 years ago

Which exponential function goes through the points (1, 16) and (4, 128)?

djyliett [7]

Answer:

Here is the complete question (attachment).

The function which represent the given points are $f(x)=8(2)^{x}$

Step-by-step explanation:

We know that a general exponential function is like, $y=a(b)^{x}$

We can find the answer by hit and trial method by plugging the values of $(x,y)$ coordinates.

Here we are going to solve this with the above general formula.

So as the points are $(1,16)$ then for $x=1,\ y=16$

Can be arranged in terms of the general equation.

$ab^1=16$ ...equation(1) and $ab^4=128$ ...equation(2)

$a\times b=16, then\ a=\frac{16}{a}$

Plugging the values in equation 2.

We have

$\frac{16}{b} b^4=128,16\times b^3=128,b=\sqrt[3]{\frac{128}{16}} =\sqrt[3]{8}=2$

Plugging $b=2$ in equation 1.

We have $a=\frac{16}{b} =\frac{16}{2} =8$

Comparing with the general equation of exponential $a=8$ and $b=2$

So the function which depicts the above points = $y=8(2)^x$

From theoption we have B as the correct answer.

7 0

4 years ago

El padre de Teresa tiene que poner un cristal hexagonal en la mesa del comedor. Si el lado mide 50 cm y la apotema mide mide 40

N76 [4]

Answer:

the area of the glass is 1000cm^2

Step-by-step explanation:

Given that

The side is 50 cm

And, the power is 40 cm

We need to find out the area of the glass

So, the area of the glass is

= (50 × 40 ) ÷ 2

= 2,000 ÷ 2

= 1,000 cm^2

Hence, the area of the glass is 1000cm^2

The same is to be considered and relevant

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3 years ago

Three out of four students in your class have brought in permission slips foe nest week field trip. there are 32 students in the

Monica [59]

You calculate it as follows:

3/4 X 32/1

= 7

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3 years ago

A group of campers were polled about whether they like swimming and whether they like playing baseball. The data from the survey

ivann1987 [24]

Answer:

a = 15

b = 18

e = 31

6 0

3 years ago

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