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3 years ago

Answer fast PLEASE!!! :)

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

5 0

Answer:

i would say... maybe a or c

Step-by-step explanation:

im not sure

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What is the greatest common multiple of 96,48,84

never [62]

Answer: 12

Step-by-step explanation: 96-84=12

I dont really know how i did it I just did.

5 0

3 years ago

In an isosceles triangle the measure of the angle formed by two congruent sides is 80° what is the measure of each base triangle

shusha [124]

all the bases and sides are all each 80° then

4 0

2 years ago

A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced.

zzz [600]

Answer:

$CI=(66.54,78.46)$

Step-by-step explanation:

Given : A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced. The mean yield of the 10 batches is 72.5% and the standard deviation is 5.8%. Assume the yields are independent and approximately normally distributed.

To find : A 99% confidence interval for the mean yield when the new catalyst is used ?

Solution :

Let X be the yield of the batches.

We have given, n=10 , $\bar{X}=72.5\%$ , s=5.8%

Since the size of the sample is small.

We will use the student's t statistic to construct a 995 confidence interval.

$\bar X\pm t_{n-1,\frac{\alpha}{2}}\frac{s}{\sqrt n}$

From the t-table with 9 degree of freedom for $\frac{\alpha}{2}=0.005$

$t_{n-1,\frac{\alpha}{2}}=t_{9,0.005}$

$t_{n-1,\frac{\alpha}{2}}=3.250$

The 99% confidence interval is given by,

$CI=72.5 \pm 3.25\frac{5.8}{\sqrt{10}}$

$CI=72.5 \pm 5.96$

$CI=(72.5+5.96),(72.5-5.96)$

$CI=(66.54,78.46)$

8 0

3 years ago

Must Just one match to fix the equation ?<br> 6 + 4 = 4

zhannawk [14.2K]

Answer:

6 + 4 × -2/4 = 4

Step-by-step explanation:

hi hope u understand

3 0

3 years ago

Read 2 more answers

Plz ANWSER and make sure it’s in decimal form, plz show ur work <br> Overdue will mark brainest!

kari74 [83]

Answer:

Step-by-step explanation:The model will be of length 0.4 ft and the width being 0.28 feet

Step-by-step explanation:

Step 1.We know that the length of the building is 200 feet, and that the width of the building is 140 feet.

Step 2. the question tells us that "a 1/500 model is built of the building", meaning the problem wants to create a model using the ratio 1 feet for each 500 feet.

Step 3.So now to find the length and width of the model, we need to divide the given sides by 500.

Step 4. Side length of the Model = 200/500 = 2/5 = 0.4 feet

Step 5. Side width of the Model = 140/500 = 14/50 = 0.28 feet

There for giving us our final answer... "The model will be of length 0.4 feet and width 0.28 feet."

Hope I could help! :)

6 0

3 years ago

Read 2 more answers