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3 years ago

Please help! i’ve been stuck on this for over 10 minutes.

Mathematics

1 answer:

Natali [406]3 years ago

3 0

Pick two points in the graph
(-2,0) and (3,4)
Slope: (y2-y1)/(x2-x1)
(4-0)/(3+2)
Slope is 4/5

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Anit [1.1K]

Answer:

Step-by-step explanation:

1 fish bowl = 1 lb of pebbles

Therefore, 3 fish bowls = 3 lbs of pebbles

So 3 lbs of pebbles willl fill 3 fish bowls.

8 0

2 years ago

33) What value for x makes this equation true? 4x + 3 = 23

Tju [1.3M]

Answer:

x = 5

Step-by-step explanation:

4x + 3 = 23

Subtract 3 from both sides;

4x = 20

Divide both sides by 4;

x = 5

3 0

3 years ago

Read 2 more answers

PLEASE HELP ME!!!!! (Urgent)

defon

Answer:

$f(x)=x^5-6x^4+14x^3-24x^2+40x$

Step-by-step explanation:

<u>Given information</u>:

Polynomial function with real coefficients.
Zeros: 0, 2i and (3+i).

For any complex number $z=a+bi$ , the complex conjugate of the number is defined as $z^*=a-bi$ .

If f(z) is a polynomial with real coefficients, and z₁ is a root of f(z)=0, then its complex conjugate z₁* is also a root of f(z)=0.

Therefore, if f(x) is a polynomial with real coefficients, and 2i is a root of f(x)=0, then its complex conjugate -2i is also a root of f(x)=0.

Similarly, if (3+i) is a root of f(x)=0, then its complex conjugate (3-i) is also a root of f(x)=0.

Therefore, the polynomial in factored form is:

$f(x)=ax(x-2i)(x-(-2i))(x-(3+i))(x-(3-i))$

$f(x)=ax(x-2i)(x+2i)(x-3-i)(x-3+i)$

As we have not been given a leading coefficient, assume a = 1:

$f(x)=x(x-2i)(x+2i)(x-3-i)(x-3+i)$

Expand the polynomial:

$f(x)=x(x^2+2ix-2ix-4i^2)(x^2-3x+xi-3x+9-3i-xi+3i-i^2)$

$f(x)=x(x^2-4i^2)(x^2-6x+9-i^2)$

$f(x)=x(x^2-4(-1))(x^2-6x+9-(-1))$

$f(x)=x(x^2+4)(x^2-6x+10)$

$f(x)=(x^3+4x)(x^2-6x+10)$

$f(x)=x^5-6x^4+10x^3+4x^3-24x^2+40x$

$f(x)=x^5-6x^4+14x^3-24x^2+40x$

8 0

2 years ago

Read 2 more answers

Helped needed! 20 points and brainliest of answered right !

svp [43]

Answer:

1. Cluster sampling

2. When finding a fair sample

3. Simple random sampling

5 0

4 years ago

Help me plz math (picture)

skad [1K]

For 34, since each diameter is in scientific notation , meaning that we have one number (1-9) followed by a decimal, we simply see which has the smallest power, which is cell C.

For 35, we multiply them out to get 0.83*10^2 (we subtract exponents when dividing). Since scientific notation is one integer from 1-9 followed by a decimal, we move 0.83 one place to the right and therefore remove one power from 10^2, getting 8.3*10

6 0

3 years ago