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3 years ago

Help with math ASAP!!!

Mathematics

2 answers:

kirill [66]3 years ago

7 0

I think it’s B! Also have a great day

melomori [17]3 years ago

6 0

Answer:

its b

Step-by-step explanation:

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Please tell me how to do this, I'll mark brainliest if you do

Arada [10]

The bottom line is a straight line that is equal to 180 degrees.

The three angles above it all need to add together to equal 180.

One angle is given as 20, so the other two need to add together to equal 160 ( 180-20 = 160)

Those two angles form the angle ACE so the answer would be 160 degrees,

Answer 160 degrees.

3 0

2 years ago

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Given the parent function, y=2^x, write an equation for a function that has a vertical shift down 5 units.

Ulleksa [173]

Answer:

y=2^x - 5

Step-by-step explanation:

"- 5" demonstrates a verical shift 5 units down

5 0

3 years ago

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Management at a seaside resort is publishing a brochure and wants to include a statement about the proportion of clear days duri

Ymorist [56]

Answer: B. 264

Step-by-step explanation:

Formula to calculate the sample size 'n' , if the prior estimate of the population proportion (p) is available:

$n= p(1-p)(\dfrac{z}{E})^2$

, where z = Critical z-value corresponds to the given confidence interval

E= margin of error

Let p be the population proportion of clear days.

As per given , we have

Prior sample size : n= 150

Number of clear days in that sample = 117

Prior estimate of the population proportion of clear days = $p=\dfrac{117}{150}$

E= 0.05

The critical z-value corresponding to 95% confidence interval = z*= 1.95 (By z-table)

Then, the required sample size will be :

$n= \dfrac{117}{150}(1-\dfrac{117}{150})(\dfrac{1.96}{0.05})^2$

Simplify ,

$n= (0.1716)(39.2)^2$

$n= 263.687424\approx264$

Hence, the sample size necessary to construct this interval =264

Thus the correct option is B. 264

7 0

3 years ago

In fifteen minutes, greg's sailboat went 3/6 mile, gina's sailboat went 6/6 mile, and Stuart's sailboat went 4/6 mile. Whose sai

Radda [10]

To make this situation easier to understand, you must simplify these fractions. 3/6 is equal to 0.5
6/6 is equal to 1
4/6 is equal to 0.3333 repeating.

With this info we can tell that Gina's sailboat went to longest distant in the fifteen minutes.

Hope this helps! :)

5 0

3 years ago

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X^2 + 8 = 3<br>please help! show steps.

Alborosie

x² + 8 = 3

x² = 3 - 8

x² = -5

x = √-5 or undefined

6 0

3 years ago