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3 years ago

Help i dont know how to do this!

Mathematics

1 answer:

Musya8 [376]3 years ago

3 0

Answer:

Translation

Step-by-step explanation:

As you can see, the flag does not rotate. A translation describes an object being moved without changing its orientation. The flag is moved down.

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At what points on the graph of f(x)=2x^3-6x^2-27x is the slope of the tangent line -9?

Dmitriy789 [7]

Answer:

(-1, 19) and (3, -81)

Step-by-step explanation:

f(x) = 2x³ − 6x² − 27x

f'(x) = 6x² − 12x − 27

-9 = 6x² − 12x − 27

0 = 6x² − 12x − 18

0 = x² − 2x − 3

0 = (x + 1) (x − 3)

x = -1 or 3

f(-1) = 19

f(3) = -81

The points are (-1, 19) and (3, -81).

4 0

3 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 402 gram setting. It is

lidiya [134]

Answer:

The value of t test statistics is -2.25.

Step-by-step explanation:

We are given that a manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 402 gram setting. It is believed that the machine is under filling the bags.

A 25 bag sample had a mean of 393 grams with a standard deviation of 20.

<u><em>Let </em></u> $\mu$ <u><em> = mean filling of bags by the machine.</em></u>

So, Null Hypothesis, $H_0$ : $\mu \geq$ 402 gram {means that the the machine is not under filling the bags}

Alternate Hypothesis, $H_A$ : $\mu$ < 402 gram {means that the the machine is under filling the bags}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean bag filling = 393 grams

s = sample standard deviation = 20 grams

n = sample of bags = 25

So, <u><em>test statistics</em></u> = $\frac{393-402}{\frac{20}{\sqrt{25} } }$ ~ $t_2_4$

= -2.25

The value of t test statistics is -2.25.

5 0

3 years ago

Which factored form is equivalent to the expression x^2 + 5x + 4? A) (x + 2)(x + 3) B) (x + 4)(x + 1) C) (x + 5)(x − 1) D) (x −

777dan777 [17]

<h3>Answer ↓</h3>

option B.

Calculations ↓

First, let's think of two numbers so that :

if we multiply these numbers, we'll get 4
if we add these numbers, we'll get 5

These numbers are :

4 and 1

Plug these numbers here :

(x+4) (x+1)

So the correct factored form of this expression is

Option B) (x+4)(x+1)

$\footnotesize\text{hope\:helpful~}}$

7 0

2 years ago

explain whether the graph represents a function? make sure to explain, I need this by 9:00 and I'll mark brainliest:)

san4es73 [151]

Answer:

This is not a function

Step-by-step explanation:

It does not pass the vertical line test

4 0

3 years ago

Two weather stations are aware of a thunderstorm located at point C. The weather stations A and B are 27 miles apart. How far is

cluponka [151]

Station A is at a distance of 28.83 miles from the storm

Sine rule is used to show the relationship between the sides of a triangle as well as their opposite angles. It is given by:

$\frac{a}{sin(A)}= \frac{b}{sin(B)}=\frac{c}{sin(C)}$

From the diagram:

A = 34° + 90° = 124°

Also:

B = 90° - 61° = 29°

Hence:

C + A + B = 180°
C + 29 + 124 = 180
C = 27°

b = distance station A from the storm, c = AB = 27 miles

Using sine rule:

$\frac{c}{sin(C)} =\frac{b}{sin(B)} \\\\\frac{27}{sin(27)}=\frac{b}{sin(29)} \\\\b=28.83\ miles \\$

Station A is at a distance of 28.83 miles from the storm

7 0

3 years ago