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2 years ago

Can you please help me out with this math problem thank you, you will get free brainly

Mathematics

2 answers:

mixas84 [53]2 years ago

5 0

Answer:

8.0, 13.7, 5.1 = yes

10, 2, 5 = yes

9, 6, 15 = no

26, 7, 7 = yes

i might be wrong, im not sure

Step-by-step explanation:

Finger [1]2 years ago

4 0

Yes, yes , no, yes hope this helps

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Write the equation of the line in fully simplified slope intercept form

Naily [24]

Answer: y = (1/4)x - 1

Step-by-step explanation:

Slope intercept form is $y = mx + b$ . The $y$ -intercept is -1 so we have $y = mx - 1$ . To find $m$ , look at the points $(0, -1)$ and $(4, 0)$ . The line goes up 1 and over 4, so the slope, $m$ , equals $1/4$ . Thus the full equation is

$$y = (1/4)x - 1$ .

4 0

2 years ago

The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees. If we want to be 90% c

siniylev [52]

Answer:

19 beers must be sampled.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.9}{2} = 0.05$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.05 = 0.95$ , so Z = 1.645.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees.

This means that $\sigma = 0.26$

If we want to be 90% confident that the sample mean beer temperature is within 0.1 degrees of the true mean temperature, how many beers must we sample?

This is n for which M = 0.1. So

$M = z\frac{\sigma}{\sqrt{n}}$

$0.1 = 1.645\frac{0.26}{\sqrt{n}}$

$0.1\sqrt{n} = 1.645*0.26$

$\sqrt{n} = \frac{1.645*0.26}{0.1}$

$(\sqrt{n})^2 = (\frac{1.645*0.26}{0.1})^2$

$n = 18.3$

Rounding up:

19 beers must be sampled.

7 0

2 years ago

Help asappppp tyyy

True [87]

Given:

Compound shape

To find:

The area of the compound shape.

Solution:

The compound shape is splitted into two parallelograms.

<u>Bottom parallelogram:</u>

Base = 7.5 cm

Height = 5 cm

Area of the parallelogram = base × height

= 7.5 × 5

= 37.5 cm²

The area of the Bottom parallelogram 37.5 cm².

<u>Top parallelogram:</u>

Base = 7.5 cm

Height = 4.5 cm

Area of the parallelogram = base × height

= 7.5 × 4.5

= 33.75 cm²

The area of the top parallelogram 33.75 cm².

Compound shape = 37.5 + 33.75

= 71.25 cm²

The area of the compound shape is 71.25 cm².

7 0

3 years ago

If parker uses online banking and average 20 transactions a month, which bank should he choose

taurus [48]

Each month that will give them 20$ for

7 0

3 years ago

Which expression shows the distance on the number line between −12 and −1 ?

Naddik [55]

Answer: A or D i think sorry if wrong but a i think

Step-by-step explanation:

but The distance between A and B = |B - A|

We have -12 and -1.

Substitute:

|-1 - (-12)| = |-1 + 12| = |11| = 11

Answer: 11 units

6 0

2 years ago