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2 years ago

Please help this is paint BRAINLIEST AND HIGH POINTS for correct answer :(

Mathematics

2 answers:

nordsb [41]2 years ago

6 0

Answer:

the last one trust me i am basically a calculator when it comes to math which is 2 1/3 more gallons

Step-by-step explanation:

natima [27]2 years ago

3 0

Answer:

1 11/12

Step-by-step explanation:

5 2/3 - 3 3/4

break off 1 from 5:

5 2/3 = 4 5/3

subtract the whole numbers:

4 - 3 = 1

find a common denominator so you can subtract the fractions, and multiply both the numerator and the denominator by the same number:

$\frac{5}{3}$ x 4 = $\frac{20}{12}$

$\frac{3}{4}$ x 3 = $\frac{9}{12}$

20/12 - 9/12 = 11/12

so your final answer is 1 11/12

i hope this helps! :)

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3. Why is a square both a rhombus and a rectangle?

Korolek [52]

A rhombus is a shape that has all four sides equal, whether they be in the shape of a parallelogram, or a square, if it has all four sides equal length, it's a rhombus. The definition of a rectangle, is a shape that has four right angles. (90 degrees).

So, if a square has all four sides equal, and four right angles, it can be both a rhombus and a rectangle.

Not all rhombuses are squares, because not all have four right angles. Not all rectangles are squares, because they do not all have four equal sides. Not all rectangles are rhombuses because they do not have four equal sides.

But all squares are a rhombus and all squares are a rectangle.

7 0

2 years ago

For a bivariate random variable (x, y ), if the covariance is 1225, the variance of x is 1600, and the variance of y is 2500. Fi

prisoha [69]

If the covariance is 1225, variance of x is 1600,variance of y is 2500 then the correlation coefficient between x and y is 0.6125.

Given the covariance is 1225, variance of x is 1600,variance of y is 2500.

We have to find the correlation coefficient between x and y.

Covariance is basically a measure of the joint variability of two random variables.

Variance is a basically a measure of dispersion, meaning it is a measure of how far a set of numbers is spread out from their average value.

The correlation coefficient is basically the specific measure that quantifies the strength of the linear relationship between two variables in a correlation analysis.

We know that the formula of correlation coefficient is as under:

r= $covariance (x,y)/\sqrt{variance(x)}*\sqrt{variance (y)}$

r=1225/ $\sqrt{1600}*\sqrt{2500}$

r=1225/(40*50)

r=1225/2000

r=0.6125

Hence if the covariance is 1225, variance of x is 1600,variance of y is 2500 then the correlation coefficient between x and y is 0.6125.

Learn more about correlation coefficient at brainly.com/question/4219149

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4 0

2 years ago

A nature center charges $35.25

gregori [183]

Answer: 12 yearly admissions and 38 single admissions

Step-by-step explanation:

Let x be yearly membership

Let y be single admission

x+y=50 --> # of tickets sold

35.25x+6.25y=660.50 --> $ of tickets

Use elimination method to solve (multiply equation 1 by -3525 and equation 2 by 100)

-3525x-3525y=-176250

+ 3525+625y=66050

-----------------------------------

-2900y=-110200

y=38

Substitute y=38 into equation 1

x+38=50

x=12

Therefore, 12 yearly admissions and 38 single admissions were sold

4 0

2 years ago

Which of the following sequences is not arithmetic

MA_775_DIABLO [31]

Answer:

1,4,9,16...

Step-by-step explanation:

It does not have a common difference between each consecutive term, therefore it is not an arithmetic sequence.

8 0

2 years ago

2/3+1/12 what's the answer

tester [92]

Answer:

3/4 or 9/12 make the denominators the same then just add

6 0

2 years ago

Read 2 more answers