3 years ago

What is 6/4 as a mixed number?

Mathematics

1 answer:

CaHeK987 [17]3 years ago

8 0

1.5 because 6 goes in to 4 1.5 times

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A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measur

ICE Princess25 [194]

Answer:

Option C) 5.62 points

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Sample mean score = 64

Sample standard deviation, s = 12

Degree of freedom =

$=n-1\\=20-1\\=19$

We have to calculate margin of error for a 95% confidence interval.

Formula for margin of error:

$t_{critical}\times \displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.05} = \pm 2.093$

$2.093\times (\displaystyle\frac{12}{\sqrt{20}} )\\\\ =5.6161\approx 5.62$

Thus, the correct answer is

Option C) 5.62 points

4 0

3 years ago

Two functions are shown below.

dimaraw [331]

Answer:

x=5

Step-by-step explanation:

Ok so put them equal to each other

2x+12=3x+7

subtract 12 from both sides

2x=3x-5

subtract 3x from both sides

-x=-5

divide both sides by -1

x=5

Have a wonderful day/night

Brainliest please.

5 0

3 years ago

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Find the surface area of the square pyramid. 70 ft² 59.5 ft2 91 A² 42 ft²

iren [92.7K]

Answer:

Delta Ft = 70*3 - 42*7 = 168 #$

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2 years ago

2x+3y=24 in slope intercept form ASAPPPPPPPPPPPPP

schepotkina [342]

Answer:

y=(-2/3)x+8

Step-by-step explanation:

2x+3y=24

3y=-2x+24

y=(-2x+24)/3

y=(-2/3)x+8

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3 years ago

20-5+15(25)=b+3+65(23)

vlada-n [284]

Answer:

-1108

Step-by-step explanation:

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3 years ago

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