2 years ago

Vina is asked to graph this system of equations:

Mathematics

1 answer:

NISA [10]2 years ago

6 0

Answer:

Option B

Step-by-step explanation:

You'll find one solution for this, so this system has one solution

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A computer company produces an extremely light laptop and they claim it is the lightest on the market weighing only 32 ounces. t

Darina [25.2K]

Solution: We are given:

$\mu=0.33, \sigma =0.7$

Let $x$ be the weight (oz) of laptop

We have to find $P(x>32)$

To find the this probability, we need to find the z score value.

The z score is given below:

$z=\frac{x-\mu}{\sigma}$

$=\frac{32-33}{0.7}$

$=-1.43$

Now, we have to find $P(z>-1.43)$

Using the standard normal table, we have:

$P(z>-1.43)=0.9236$

0.9236 or 92.36% of laptops are overweight

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2 years ago

Recall the chapter example which described the fact that the mean IQ in large, diverse populations is 100 and the standard devia

vova2212 [387]

Answer:

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the answer:

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

z is the corresponding statistic of the 99% confidence level (2.576)

s is the population IQ standard deviation (15)

N is the sample size (300)

Using these numbers we get:

ME= $\frac{2.576*15}{\sqrt{300} }$ ≈ 2.23

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2 years ago

At practice, Diego does twice as many push-ups as Noah, and also 40 jumping jacks. He does 62 exercises in total.

IRINA_888 [86]

Answer:

Step-by-step explanation:

x = number of pushups he did

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2 years ago

Read 2 more answers

Plz help and show ur work❤️

Sergio039 [100]

Answer:

20 x

Step-by-step explanation:

i hope that is it

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3 years ago

Find ordered pairs: choose two of the answers below

Anarel [89]

Answer:

b -3,3 c 6,9 hope this helps

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2 years ago