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galina1969 [7]
3 years ago
8

Simplify: (4x2 − 8xy + 2y2) − (9x2 − 4xy − 7y2)

Mathematics
2 answers:
WINSTONCH [101]3 years ago
5 0

Answer:

−5x2 − 4xy + 9y2

Likurg_2 [28]3 years ago
4 0
I believe it is -4xy + 9y^2 - 10
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Rachel is baking a cake but does not know if she wants to bake a round or a square cake. which cake has a larger area a round 8
leva [86]
The nine inch cake, by an inch.
5 0
3 years ago
1.
Nana76 [90]

Answer:

12 feet

Step-by-step explanation:

Area of a Rectangle: l × w

84 ft² = l × 7 ft

Length = 84 ft² ÷ 7 ft = 12 feet

Hope this helps.

8 0
3 years ago
Find the exact circumference of a circle with diameter equal to 8 ft. 8 ft. 16 ft. 64 ft.
maria [59]

ANSWER

8π ft

EXPLANATION

The circumference of a circle is calculated using the formula C=πd.

Where d=8 is the diameter of the circle.

We substitute d=8 into the formula to obtain,

C=8π ft.

Because we are looking for the exact circumference, we leave the answer in terms of π.

6 0
3 years ago
Read 2 more answers
Mary leaves her house to take a walk. The graph shows the distance, d, in feet from her house that Mary is at any given time, t,
Vitek1552 [10]
You haven't provided the graph, therefore, I cannot provide you with a specific solution for this question.
However, I will tell you how to solve it and you can apply on the graph you have.

Now, we are given that:
x-axis represents the distance in ft
y-axis represents the time in minutes

To get the time that she has walked when she reaches the farthest point from her house, all you have to do is:
1- go to the greatest point on the x-axis. This point would be representing the farthest distance.
2- get the value of the y corresponding to the x-point you got in step one. This would be the time walked when she reaches the farthest point which is the value you are looking for.

Hope this helps :)
5 0
3 years ago
Answer correctly for brainliest pleaseeee!!
wolverine [178]

Answer:

A. (x,y) → (-x,y)

Step-by-step explanation:

A: (-5,-1)
A': (5,1)
B: (-3, -3)
B': (3, -3)
C: (-5, -5)

C': (5, -5)
D: (-7, -3)

D': (7,-3)

The x values change sign but the y values don't.

3 0
2 years ago
Read 2 more answers
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