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Sophie [7]
3 years ago
5

PLEASE NEEED HEELPP

Mathematics
1 answer:
krok68 [10]3 years ago
8 0
There are many systems of equation that will satisfy the requirement for Part A.
an example is y≤(1/4)x-3 and y≥(-1/2)x-6
y≥(-1/2)x-6 goes through the point (0,-6) and (-2, -5), the shaded area is above the line. all the points fall in the shaded area, but
y≤(1/4)x-3 goes through the points (0,-3) and (4,-2), the shaded area is below the line, only A and E are in the shaded area. 
only A and E satisfy both inequality, in the overlapping shaded area.

 
Part B. to verify, put the coordinates of A (-3,-4) and E(5,-4) in both inequalities to see if they will make the inequalities true. 
 for y≤(1/4)x-3: -4≤(1/4)(-3)-3
-4≤-3&3/4 This is valid.
For y≥(-1/2)x-6: -4≥(-1/2)(-3)-6
-4≥-4&1/3 this is valid as well. So Yes, A satisfies both inequalities. 
Do the same for point E (5,-4)

Part C: the line y<-2x+4 is a dotted line going through (0,4) and (-2,0)
the shaded area is below the line
farms A, B, and D are in this shaded area. 
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Does the image have rotational symmetry? If so, by how many degrees?
Goshia [24]

<em>☽------------❀-------------☾</em>

<em>Hi there!</em>

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<em>Yes, the image has </em><u><em>rotational symmetry</em></u><em>. I think about </em><u><em>180 degrees</em></u><em> if i did this this right.</em>

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4 0
3 years ago
The Student Council of your school orders 11 pizzas for an event.
bezimeni [28]

Answer:

I think u just add and  multiple

Step-by-step explanation:

8 0
3 years ago
HELPPPP DUE SOON!!! WILL MARK BRAINLYIST AND 10 POINTS
larisa86 [58]

Answer:

688.7

Step-by-step explanation:

Top and Bottom

Area = 3/4 * pi * r^2

r = 6

Area = 3/4 * 3.14 * 6^2

Area =                                                               84.78

Don't round yet.

Vertical surface

Vertical surface = 3/4 * pi * d * h

d = 12 inches (the diameter)

Vertical surface = 3/4 * 3.14 * 12 * 15

Vertical surface =                                          423.9

Two inner faces

They are both rectangles

Area = 2 * L * W

L = 15

w=6

Area = 2 * 15 * 6                           <u>                  180</u>

Total                                                               688.68

Total = 688.7

7 0
2 years ago
4. Which of the following represents a function?
Dafna11 [192]
The 3 option
(3,9), (-7,1), (6,12), (-3, -9)
3 0
2 years ago
Help please!
Anna71 [15]
29.82, i did that by dividing 127.8 by 60 and i got 2.13 multiply that by 14 and boom there u go. i think :l
7 0
3 years ago
Read 2 more answers
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