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astra-53 [7]
3 years ago
8

Central Angles and Arc Measures Practice What is X?

Mathematics
1 answer:
myrzilka [38]3 years ago
7 0

Answer: 5^{\circ}

Step-by-step explanation:

Given

\angle DIE=(18x-2)^{\circ}\\\angle DIH=15^{\circ}\\\angle FIG=103^{\circ}

from the figure

\angle HIE=\angle GIF\quad [\text{vertically opposite angles}]\\\angle HID+\angle DIE=\angle GIF\\15^{\circ}+(18x)^{\circ}-2^{\circ}=103^{\circ}\\(18x)^{\circ}=103^{\circ}-13^{\circ}\\\\x=\dfrac{90^{\circ}}{18}\\\\x=5^{\circ}

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kari74 [83]
23 over 90 and if I got it wrong, sorry
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3 years ago
Please help me! And get marked as brainlist!
Luda [366]

Answer:

Step-by-step explanation:

a) area of the rectangle = length × breadth

Therefore area should be = 12cm × 6cm

Which should give you the answer 72centimetre squared.

b) area of triangle A = 1/2 × b × h

So that is 1/2 × 3 × 6

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c) area of triangle B = 1/2 × b × h

So 1/2×3×6=18

Now 1/2×18 should give you 9 centimetres squared

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8 0
3 years ago
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slega [8]

Answer:

11) 4/11

12) -0.2

Step-by-step explanation:

4 0
3 years ago
If the sides of a square are lengthened by 7 feet, the area becomes 121 square feet. How long is a side of the original square?
Bogdan [553]
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5 0
3 years ago
Read 2 more answers
A jewelry box contains 13 gold earrings, 10 silver earrings and 12 titanium
gulaghasi [49]

Answer:

The probability is 406/625

Step-by-step explanation:

If they are of different materials, we have the following combinations of selection;

(gold and silver) or ( silver and titanium) or (gold and titanium )

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Probability of selecting a gold earring is 13/25

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Substituting these into the probabilities, we have;

(13/25 * 10/25) + (10/25 * 12/25) + (13/25 * 12/25)

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8 0
3 years ago
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