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Simora [160]
3 years ago
7

Someone plz write out the answer I’m confused!

Mathematics
1 answer:
erica [24]3 years ago
5 0

Answer:

1 farmer a makes 2.40 per acre    2 farmer b makes more per acre

Step-by-step explanation:

farmer A we know 3 one thirds is 1

to find one acre multiply .80 by 3

farmer A has $2.40 per acre

farmer B

.70 multiply by 4

$2.80

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svp [43]

The answer is 7 feet

7 0
3 years ago
(SUPER EASY ANSWER QUICK 30 POINTS!)
harina [27]

\frac{35}{4} feet below the surface

adding the 2 quantities

3 \frac{1}{2} + 5 \frac{1}{4}

= (3 + 5 ) + (\frac{1}{2} + \frac{1}{4})

= 8 + (\frac{2}{4} + \frac{1}{4})

= 8 + \frac{3}{4} = 8 \frac{3}{4} = \frac{35}{4}


3 0
3 years ago
the blue mountain high school drama club is selling tickets to their spring musical. adult tickets are $4 an student tickets are
Mazyrski [523]

Answer:

3454

Step-by-step explanation:

÷÷1/2=××/×/2223=×=×=÷

22÷3××÷÷

2÷=1=×+=××/

×$÷×=×2

2÷2÷/3=×

3 0
3 years ago
A professor went to a website for rating professors and looked up the quality rating and also the "easiness" of the six full-tim
Marat540 [252]

We are asked to determine the correlation factor "r" of the given table. To do that we will first label the column for "Quality" as "x" and the column for "Easiness" as "y". Like this:

Now, we create another column with the product of "x" and "y". Like this:

Now, we will add another column with the squares of the values of "x". Like this:

Now, we add another column with the squares of the values of "y":

Now, we sum the values on each of the columns:

Now, to get the correlation factor we use the following formula:

r=\frac{n\Sigma xy-\Sigma x\Sigma y}{\sqrt{(n\Sigma x^2-(\Sigma x)^2)(n\Sigma y^2-(\Sigma y)^2)}}

Where:

\begin{gathered} \Sigma xy=\text{ sum of the column of xy} \\ \Sigma x=\text{ sum of the column x} \\ \Sigma y=\text{ sum of the column y} \\ \Sigma x^2=\text{ sum of the column x\textasciicircum2} \\ \Sigma y^2=\text{ sum of the column y\textasciicircum2} \\ n=\text{ number of rows} \end{gathered}

Now we substitute the values, we get:

r=\frac{\left(6)(70.56)-(25.2)(16.4\right)}{\sqrt{((6)(107.12)-(25.2)^2)((6)(47.82)-(16.4)^2)}}

Solving the operations:

r=0.858

Therefore, the correlation factor is 0.858. If the correlation factor approaches the values of +1, this means that there is a strong linear correlation between the variables "x" and "y" and this correlation tends to be with a positive slope.

7 0
1 year ago
4. Find the surface area of the space figure represented by the net.
Pavel [41]
The correct answer is C. 20 characters
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3 years ago
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