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AlekseyPX
2 years ago
11

Sean and his sister, Betty equally mow 8/9th the total area of a lawn. What fraction of the total area did each of them mow? (Sh

ow ur work plz)
Mathematics
1 answer:
Alexxx [7]2 years ago
8 0
Since they mowed \frac{8}{9} of the lawn in two equal parts, we need to split the pieces that were mowed into two equal groups. We know that in total they mowed 8 out of the total 9 pieces of lawn, so two equal groups that make 8 would be of size 4, since \frac{8}{2}=4. Then they each mowed \frac{4}{9} of the lawn.
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The equation cos super negative 1 (StartFraction 3.4 Over 10 EndFraction)equals x can be used to determine the measure of angle
Dmitriy789 [7]

Answer:

70 degrees

Step-by-step explanation:

cos^{-1} \frac{3.4}{10}=x

This implies that:  cos x=  \frac{3.4}{10}Recall: cos x=\frac{adjacent}{hypotenuse}

From the diagram

Angle CAB,  x=cos^{-1} \frac{3.4}{10}=70.1 degrees=70 (to the nearest degree)

6 0
2 years ago
Read 2 more answers
A store manager records the total visitors and sales, in dollars, for 10 days. The data is shown in the scatter plot. What concl
pickupchik [31]

Answer:An increase in visitors is correlated with an increase in sales.

Step-by-step explanation:

From the given scatter plot we can see that variables are positively correlated  because they are moving in the same direction.

Since we know that the positive correlation is a relationship between two variables such that they increase or decrease together.

Since, the two variables given her is " number of visitors" and "Total sales"

Therefore, based on the given data it can be observed that "An increase in visitors is correlated with an increase in sales."

3 0
2 years ago
Write the coordinates of the vertices after a rotation of 180 degrees counterclockwise around the origin.
Umnica [9.8K]

90 degrees you are looking to your side

180 degrees you are looking behind you

around origin of 0,0

the image is flipped into the negative world if it is in posiitve or vice versa

8 0
2 years ago
Simplify: –3(y + 2)2 – 5 + 6y What is the simplified product in standard form?
Lina20 [59]
-3(y+2)^2-5+6y
-3(y^2+4y+4)-5+6y
-3y^2-12y-12-5+6y
-3y^2-6y-17
8 0
2 years ago
Which equation is the inverse of y = 2x2 – 8?​
natita [175]

The inverse of the function is y=\pm \sqrt{\frac{x+8}{2}}

Explanation:

To find the inverse of the equation y=2x^{2} -8, we need to interchange the variables x and y for the variables y and x.

Thus, the equation becomes

x=2y^{2} -8

Now, we shall find the value of y.

Now, adding 8 to both sides of the equation, we have,

x+8=2y^{2}

Interchanging the sides,

2y^{2} =x+8

Dividing by 2 on both sides,

y^{2} =\frac{x+8}{2}

Taking square root on both sides,

y=\pm \sqrt{\frac{x+8}{2}}

Thus, the inverse of the function is y=\pm \sqrt{\frac{x+8}{2}}

5 0
2 years ago
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