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galina1969 [7]
2 years ago
12

Answer please and leave an explanation too! thank you!

Mathematics
1 answer:
grin007 [14]2 years ago
8 0

Answer:

1-C; 2-D.

Step-by-step explanation:

0) the common formula is:

area=π*r²;

1) according to the formula above the area of the sector C. doubles (increases by a factor two);

2) according to the formula the area of the sector D. quadruples (increases by a factor four).

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Find the percent change from the first value to the second 50;30
Alex787 [66]

Answer:

-40%

Step-by-step explanation:

NV = new value

OV = old value

percent change = (NV - OV)/(OV) × 100%

percent change = (30 - 50)/(50) × 100%

percent change = -20/50 × 100%

percent change = -40%

5 0
2 years ago
What is 5+2????????????????/
Amiraneli [1.4K]

Answer:well after careful consideration it’s 7

Step-by-step explanation: 1+1+1+1+1+1+1=7

4 0
2 years ago
Help me solve this please it’s for my homework due tonight!!
natulia [17]

Answer:

h = 8

Step-by-step explanation:

Area of rectangle: base * height

So, by substituting the values given, we can write this equation:

Note: 1/4 = 0.25, so 3 1/4 = 3.25

A = b * h

26 = 3.25 * h

Divide both sides by 3.25.

h = 8

I hope this helps! Feel free to ask any questions!

3 0
2 years ago
If pentagon ABCDE is rotated 180 degrees around the origin to create pentagon A’ B’ C’ D’ E’, what is the ordered pair of point
Naddik [55]
You haven't provided the original coordinates or the figure, therefore, I cannot give an exact answer. However, I will help you with the concept.

For rotation 180° about the origin, the signs of both the x any y coordinates are changed.
<u>This can be modeled as follows:</u>
(x,y) ......> rotation 180° about the origin ........> (-x,-y)

<u>Examples:</u>
(1,2) .......> rotation 180° about the origin ........> (-1,-2)
(2,-19) ....> rotation 180° about the origin ........> (-2,19)
(-3,-8) .....> rotation 180° about the origin ........> (3,8)
(-5,7) ......> rotation 180° about the origin ........> (5,-7)

Based on the above, all you have to do to get the coordinates of C' is change the signs of both the x and y coordinates

Hope this helps :)

5 0
2 years ago
How much money is required to buy 2 cakes of soap at $.18 a cake an 1 dozen eggs at $.65 a dozen
mestny [16]

Answer: 1.01$

Step-by-step explanation:

.18 + .18=.36

.36 + .65=1.01$

8 0
3 years ago
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