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kotegsom [21]
3 years ago
13

I need help with this please!

Mathematics
2 answers:
Korolek [52]3 years ago
8 0

Answer:3/8

Step-by-step explanation:

n200080 [17]3 years ago
6 0

Answer:

8/3

Step-by-step explanation:

Add all those up and you get 12.

Hope this helps!

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Find the area of the red triangle.
JulsSmile [24]

Answer:

it is 9

Step-by-step explanation:

adding 79 and 10 and subsequently subtracting 72 and 8 to get 9

5 0
3 years ago
The LB Company has long manufactured a light bulb with an average life of 5400 hours. Company researchers have recently develope
elena55 [62]
<h2><u>Answer with explanation</u>:</h2>

Let \mu be the average life of light bulbs.

As per given , we have

Null hypothesis : H_0 : \mu =5400

Alternative hypothesis : H_a : \mu >5400

Since H_a is right-tailed and population standard deviation is also known, so we perform right-tailed z-test.

Formula for Test statistic : z=\dfrac{\overlien{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

where, n= sample size

\overline{x}= sample mean

\mu= Population mean

\sigma=population standard deviation

For n=95,\ \overline{x}=5483\ \&\ \sigma=500, we have

z=\dfrac{5483-5400}{\dfrac{500}{\sqrt{95}}}=1.61796786124\approx1.6180

Using z-value table , Critical one-tailed test value for 0.06 significance level :

z_{0.06}=1.5548

 Decision : Since critical z value (1.5548) < test statistic (1.6180), so we reject the null hypothesis .

[We reject the null hypothesis when critical value is less than the test statistic value .]

Conclusion : We have enough evidence at 0.06 significance level to support the claim that the new filament yields a longer bulb life

8 0
3 years ago
a dog food company sells its canned dog food to stores for $0.35 per can. one of the stores sells the can of dog food for $0.79.
iris [78.8K]
To answer your question its 27.65
6 0
3 years ago
PLEASE HELP ASAP!!
Angelina_Jolie [31]

Answer:

57

Step-by-step explanation:

EGB and EHD are the same angles.

4 0
2 years ago
Read 2 more answers
Write a unit rate for the situation. $1.98 for 6 bananas
USPshnik [31]
A unit rate is when you find a rate when one variable (or value) is equal to one.

Let's find the unit rate for the price of the bananas. 

1.98/6= 0.33

It is 33 cents for one banana. That is the unit rate. 

I hope this helps!
~kaikers
4 0
3 years ago
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