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Papessa [141]
3 years ago
10

In circle K, what is the value of x?

Mathematics
2 answers:
leonid [27]3 years ago
4 0
X=15 degrees if we assume that the blank angle is a 90 degree angle...

Hope this helps :D
erastova [34]3 years ago
4 0

Answer:

The correct option is 4.

Step-by-step explanation:

Given information: K is the center of the circle. AB is the diameter of the circle.

Angle subtended by a diameter is always a right angle. It the means the measure of that angel is 90 degree.

\angle C=90^{\circ}

According to the angle sum property, the sum of interior angles of a triangle is 180 degree.

Using angle sum property in triangle ABC, we get

\angle A+\angle B+\angle C=180^{\circ}

75^{\circ}+x+90^{\circ}=180^{\circ}

x=15^{\circ}

Therefore the measure of x is 15 degree. Option 4 is correct.

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Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in.
tankabanditka [31]

Answer:

The percentage error is 3.6 % .

Step-by-step explanation:

Formula

Error\ percentage = \frac{Error\times 100}{Exact\ value}

Error = \left |Approx - Exact \right |

As given

Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in.

Here

Approx value =  78.25 in

Exact value = 75.50 in

Error = \left |78.25 - 75.50\right |

Error = 2.75

Put in the formula

Error\ percentage = \frac{2.75\times 100}{75.50}

Error\ percentage = \frac{275}{75.50}

Error percentage = 3.6 %

Therefore the percentage error is 3.6 % .


3 0
3 years ago
Read 2 more answers
Write the equation of the line that passes through the points (2 , -1) and has a slope of - 3​
svetlana [45]

Answer:

y=-3x+5

Step-by-step explanation:

y=mx+b

m=slope or gradient (=-3)

y=-3x+b  

Add your points

(2, -1)

-1=(-3 x 2)+b

-1= -6+b

-1+6=b

b=5

y=-3x+5

5 0
3 years ago
Read 2 more answers
Help please if you can. Thank you
abruzzese [7]
27/50 is the answer. Why? Because 54 and 100 are both divisible by 2. hope this helps
4 0
2 years ago
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My work is already late because I was suppose to turn it in at 9:30 PM sooo like help?
CaHeK987 [17]
The answer is 500.902 hope you get it right
5 0
3 years ago
Please help numbers 1 through 5.
ser-zykov [4K]

Answer:

i can't see

Step-by-step explanation:

4 0
3 years ago
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