Answer:
(b) Circle C is shown. Line segment A C is a radius with length 7 centimeters.
Step-by-step explanation:
Given
Required
Which circle could she use
To do this, we simply calculate the areas of all the given circles
The area of a circle is:
Where
The area is calculated as thus:
The area is calculated as thus:
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The area is calculated as thus:
The area is calculated as thus:
<em>From the calculations above; only the circle in option (b) has an area within the required range of 135 to 155cm^2</em>
Answer: She had 200 cards to start with
Step-by-step explanation:
Let x = the amount of cards she had initially. This means she had x cards to start with.
She gave half of the cards she had to a friend. This means she gave her friend x/2 cards. She is left with with (x-x/2) = x/2 cards.
She also gave 1/4 of the remaining cards to her brother. This means that she gave (1/4 × x/2) = x/8 cards to her brother.
Remaining number of cards will be x/2 - x/8 = (4x-x)/8 = 3x/8
She still has 75 cards left. This means
3x/8 = 75
Cross multiplying with 8, it becomes
3x = 75×8 = 600
x = 600/3 = 200
She had 200 cards to start with.
Answer:
An axis of symmetry is a line about which a figure is symmetrical. If a figure can be folded such that the two parts exactly match, the fold line is an axis of symmetry. A figure can have one line of symmetry, many lines of symmetry, or no lines of symmetry.
Step-by-step explanation:
google
The answer is B :)
hope this helps you out
Answer:
2, 3, and 4 of Ed
Step-by-step explanation:
Saw another answer of brainly .
