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3 years ago

Please help I need it

Mathematics

1 answer:

alexira [117]3 years ago

4 0

Answer:

350mlliliters = 0.35liters

9liters = 9000milliliters

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1. Which of the following expressions is equivalent to -3(x + 2) + (x – 3)x:

xenn [34]

Answer:

C)x^2 - 6x-6

Step-by-step explanation:

-3(x + 2) + (x – 3)x=

-3x-6+x^2-3x=

x^2 - 6x-6

7 0

4 years ago

Read 2 more answers

I really need help I don’t know how to do this and no one wants to help me :(

natka813 [3]

Answer:

p=-1,-4

q=-1,-2

s=3,-2

u=-5,-3

v=-1,1

Step-by-step explanation:

7 0

3 years ago

An anthropologist wishes to estimate the average height of men for a certain race of people. If the population standard deviatio

mario62 [17]

Answer:

The probability that the difference between the sample mean $\bar{x}$ and the true population mean $\mu$ is : $P[|\bar{x}-\mu|\leq0.7]=0.9876$

Step-by-step explanation:

Given :

Population standard deviation $\sigma=2.8$ .

Sample size $n=100$

The sample mean standard deviation $=\frac{\sigma}{\sqrt{n}}$

To find :

The probability that the difference between the sample mean $\bar{x}$ and the true population mean $\mu$

$\because\frac{\sigma}{\sqrt{n}}=\frac{2.8}{\sqrt{100}}=\frac{2.8}{10}=0.28$

Now, the probability that the difference between the sample mean $\bar{x}$ and the true population mean $\mu$ is :

$P[|\bar{x}-\mu|\leq0.7]$ , $n$ is large $\Rightarrow \frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}}=z$

$\Rightarrow P[\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}}$

$\Rightarrow P[z$

$\Rightarrow P[-2.5$

Therefore, the probability $P[|\bar{x}-\mu|\leq0.7]=0.9876$

5 0

3 years ago

The graph shows the altitude of a helicopter over time.

NARA [144]

The slope is 4000/15 = 266.67

the the slope shows how far the helicopter went total
i hope this helps

8 0

4 years ago

Please answer quickly attachment is under this little message

Dvinal [7]

Answer:

315 dm3

Step-by-step explanation:

$V=\frac{lwh}{3} \\\V=\frac{9*7*15}{3} \\V=\frac{945}{3} \\V=315$

8 0

2 years ago