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2 years ago

Factor n^3 - n^2 + 3n - 3.

Mathematics

1 answer:

lozanna [386]2 years ago

5 0

N^2(n - 1) + 3(n - 1)

(n^2 + 3)(n - 1)

the answer is c

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What may be revealed from a scatterplot?a. No relationship between two variables b. A linear relationship between two variables

ruslelena [56]

Answer:

Step-by-step explanation:

6 0

2 years ago

How to solve these two problems ？

puteri [66]

8) $\theta$ is -0.896 radians

9) length of arc is 41.91 cm

Solution:

Given that,

$tan\ \theta = \frac{-5}{4}$

$\theta$ is in quadrant 4

To find: $\theta$

From given,

$tan\ \theta = \frac{-5}{4}\\\\\theta = tan^{-1} \frac{-5}{4}\\\\\theta = tan^{-1} (-1.25)\\\\\theta = -51.34$

Thus value of $\theta$ is -51.34 degrees

Convert degrees to radians

$-51.34\ degree = -51.34 \times \frac{ \pi }{180}\ radian\\\\-51.34\ degree = -0.896\ radian$

Thus $\theta$ is -0.896 radians

From given,

radius = 15.4 cm

$\theta = \frac{13 \pi }{15}$

<em><u>The length of arc when angle in radians is:</u></em>

$arc\ length = r \times \theta\\\\arc\ length = 15.4 \times \frac{ 13 \pi }{15}\\\\arc\ length = 15.4 \times 2.721\\\\arc\ length = 41.91$

Thus length of arc is 41.91 cm

4 0

2 years ago

A bag contains 5 white, 3 black, and 2 green balls. Balls are picked at random.

Soloha48 [4]

Answer:

look down there

Step-by-step explanation:

First ball:

Probability of drawing a white ball is 5/8

Probability of drawing a black ball is 3/8

Second ball:

This depends on the first ball drawn, lets say you drew a white ball initially, 4 white balls are left out of 7 balls in total. The probability of a white ball in the second pick is 4/7.

Total probability of drawing two white balls is 5/8*4/7 (since they are independent events).

If you picked a black ball initially, picking another black ball would have a probability of 2/7, on similar grounds , total prob for 2 blacks would be 3/8*2/7.

The probability that you pick 2 balls of same color is (5/14 + 3/28) = 13/28. (Since they are mutually exclusive events)

6 0

2 years ago

Merit works in a florist shop and makes flower arrangements

Vikentia [17]

So what is the question

5 0

2 years ago

Parallelogram

umka2103 [35]

Answer:

Rhombus

Step-by-step explanation:

it's like a diamond but it's a little bit thicker

8 0

2 years ago