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4 years ago

What is the answer?????/

Mathematics

1 answer:

SCORPION-xisa [38]4 years ago

3 0

The questions is, when z=9, 3z = ? When you multiply 3*9, you get 27

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(Sorry for the spam, making sure these are right) One zero of the polynomial function f(x)=x^3-9x^2+20x is x=0. What are the pol

____ [38]

Replace f(x) with 0 and solve for x. We do this because the x intercepts always occur when y = 0. Keep in mind that y = f(x).

f(x)=x^3-9x^2+20x

0=x^3-9x^2+20x

x^3-9x^2+20x = 0

x(x^2-9x+20) = 0 .... factor out GCF x

x(x-5)(x-4) = 0 ... factor the stuff inside

x = 0 or x-5 = 0 or x-4 = 0 ... zero product property

x = 0 or x = 5 or x = 4

<h3>The roots or zeros are 0, 5, 4</h3><h3>Answer: Choice D</h3>

5 0

3 years ago

Find the coordinates of P so that P partitions the segment AB in the ratio 6:2 if A(−4,12) and B(9,−4).

Jobisdone [24]

<u>ANSWER</u>

B. (5.75, 0)

<u>EXPLANATION</u>

If the point P(x,y) partitioned

$A(x_1,y_1)$

and

$B(x_2,y_2)$

in the ratio m:n, then

$x = \frac{mx_2+nx_1}{m + n}$

$y=\frac{my_2+ny_1}{m + n}$

If the coordinates are A(−4,12) and B(9,−4), then:

$x = \frac{6 \times 9+2 \times - 4}{6 + 2}$

$x = \frac{54 - 8}{8}$

$x = \frac{46}{8}$

$x = 5.75$

$y= \frac{6 \times - 4+2 \times 12}{6 + 2}$

$y = \frac{24 - 24}{8}$

$y = \frac{0}{24} = 0$

The correct choice is

$B. (5.75, 0)$

3 0

3 years ago

In a box there are 48 ripe mangoes and 12 green ones. The ratio of green mangoes to ripe mangoes is?

Otrada [13]

Answer:

1 : 4

Step-by-step explanation:

green:ripe

12 : 48

Divide each side by 12

12/12 :48/12:

1 : 4

6 0

3 years ago

Read 2 more answers

1. Graph the system of inequalities<br> 2x+3y 32<br> x+2y<2<br><br><br><br> Please help?

dybincka [34]

Answer:

2x+3y . 32 = 2x + 96y

x+2y<2 = 2x +96y

Step-by-step explanation:

7 0

3 years ago

Can anyone please help me with this question

kirill [66]

Would it be negative fourty (-40) as the difference between 20 and -10 is 30 so -10 minus 30 is -40 ?

7 0

3 years ago