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serg [7]
3 years ago
5

Please could I have some help :)

Mathematics
2 answers:
EastWind [94]3 years ago
6 0
Answer is b x=128 you’re welcome
nirvana33 [79]3 years ago
5 0

Answer:

a) x = 128 degrees

b) Angle APD is the arc angle, which is equal to the central angle x subtended by the arc.  Therefore angle APD = 128 degrees (and not 116 degrees)

Step-by-step explanation:

Given:

attached diagram

ABC is a straight line

Solution:

a) Find x

ABC is a straight line

angle ABD = supplement of CBD = 180-CBD = 180-116 = 64 degrees.

x is the central angle of the arc APD

so angle ABD is the inscribed angle which equals half of the arc angle =>

angle ABD = x/2 = 64 degrees

Solve for x

x/2 = 64

x = 2*64

x = 128 degrees

b.

Angle APD is the arc angle, which is equal to the central angle x subtended by the arc.  Therefore angle APD = 128 degrees (and not 116 degrees)

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I need help with this​
OLga [1]

Answer:

121

Step-by-step explanation:

The sum of the angles inside a triangle is always 180. The missing angle in the triangle must then be 180 -74 -47 = 59 degrees. The angles on a straight line add up to 180 degrees so x + 59 = 180. x = 180-59 = 121

3 0
3 years ago
Omar’s classroom has 2 closets. Each closet has 3 shelves. There are 5 backpacks on each shelf. How many backs are there in all
almond37 [142]

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5 0
3 years ago
Two factors of 18 add up to 12. What are they?
stepladder [879]

Answer:

3 and 9

Step-by-step explanation:

The factors of 18 can be listed as

1, 2, <u>3</u>, 6, <u>9</u>, 18

The two which sum to 12 are 3 and 9

7 0
3 years ago
A 15 pound bag of ice costs $ 1.80. Give the unit rate.
Vaselesa [24]
We can use a rule of three simple, direct proportion to solve this problem.
15 pounds correspond to $1.80, then the question is to find the price of one pound, the called unit rate. We state the rule of three:
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7 0
3 years ago
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zhannawk [14.2K]
I solved it but don’t know how to show my work
6 0
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Read 2 more answers
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