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emmasim [6.3K]
3 years ago
13

I need help on this :,)​

Mathematics
1 answer:
masha68 [24]3 years ago
3 0

Answer:

a. Figure B and Figure C

b. Figure C

c. Figure B and Figure C

Step-by-step explanation:

Parallelograms need at least one pair of sides to be parallel.

Squares have to have four sides of equal length

Rectangles need to have all interior angles equal to 90 degrees.

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10x-20=10x-20, make your decision on the answer from this which they are all real numbers. Hope this will help you!
7 0
3 years ago
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I’m confused on this one
kvv77 [185]
The answer is 42.

The question is asking for angle N. We know from the question that angle N is equal to angle E (Don't think about the scale factor because it only applies to the sides. They're just trying to trick you).

To find angle E:
79 + 6x + 11  + 7x - 14 = 180
Move numbers to the right side:
6x + 7x = 180 - 79 - 11 + 14
Combine like terms:
13x = 104
Divide both sides by 13:
x = 8
The formula for angle E:
7x - 14
Plug in the 8:
7 \times 8 - 14 = 56 - 14 = 42
The angle measure of E is 42. So angle N is automatically 42 too.

To solidify, we can try to use the formula which they give us for angle N:
3x + 18 = 24 + 18 = 42
8 0
3 years ago
The function f(x) = -5x2 + 13x + 6 represents the height, in meters, of a
AnnZ [28]

Answer:

D

Step-by-step explanation:

Differentiate the function and set it to zero:

f'(x) = -10x + 13

0 = -10x + 13

x = 1.3 seconds

Plug the x value into f(x):

f(1.3) = -5(1.3)^2 + 13(1.3) + 6 = 14.45 meters

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3 years ago
What are the solutions to the inequality (x-3)(x+5) greater than or equal to 0?
amid [387]

Answer:

C

Step-by-step explanation:

If this was an equation...

(x-3)(x+5) = 0

x = 3, -5

So 3 and -5 are the minimum and the maximums.

So we convert that into an inequality.

-5 <= x <= 3

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3 years ago
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C !.!.!.!.!!.!.!.!.!!.!!.!.!.!.!!!.!!!.!.!.
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