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Masja [62]
3 years ago
7

Which of the following is the equation for a circle with a radius of r and center at (h, v)?

Mathematics
2 answers:
umka2103 [35]3 years ago
7 0

Answer: Choice D

Your book may use the template (x-h)^2 + (y-k)^2 = r^2, but it's the same idea. The center here is (h,k) and radius is r.

Paha777 [63]3 years ago
3 0

Answer:

the correct answer is option A

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A circle is centered on point B. Points A, C and D lie on its circumference.
Firlakuza [10]

Answer:

<h2>The angle ABC is 70°.</h2>

Step-by-step explanation:

You can observe a representation of the problem in the image attached.

According to the inscribed angle theorem, the angle created by two chords is half of its subtended arc, that means

\angle ADC = \frac{1}{2}(AC)\\ 35\°=\frac{1}{2} (AC)\\AC=70\°

Now, observe that the arc AC has as central angle the angle ABC, according to the theorem, the subtended arc and its central are congruent.

\angle ABC \cong arc(AC)

Therefore, the angle ABC is 70°.

6 0
4 years ago
Read 2 more answers
A jacket cost £70 but is reduced by 12% in a sale. What is its new price
klemol [59]
100% = 70
1% = .7 (divide by 100)
12% = 8.4 (Multiply 1% by 12)
70 - 8.4 = 61.6 (New Price)
Hope this helped! Got any questions just ask!


8 0
3 years ago
What is the surface area of 120 x 110 x 4
Rina8888 [55]

surface area is the area of all the faces on a shape so to speak.

2(120 x 110)=26,400

2(120 x 4)=960

2(110 x 4)=880

880+960+26,400=28,240

Surface area = 28,240

5 0
3 years ago
A triangle has an area of 30 cm2. The base and height are scaled by a factor of 3. What is the are of the resulting triangle.
Lera25 [3.4K]
The base and height scaled to some factor, simply means,
they're blown up by that much, or multiplied by that much,

in this case is 3, so.. the area would be 1/2 bh, now,
with 3b and 3h, what would it be?

\bf \begin{cases}&#10;A=\cfrac{1}{2}bh&#10;\\\\&#10;\textit{now, scaling "b" and "h" by 3}&#10;\\\\&#10;A=\cfrac{1}{2}\cdot 3b\cdot 3h\to \cfrac{1}{2}\cdot 9bh&#10;\\\\&#10;A=\cfrac{9}{2}bh\to 9\left(\cfrac{1}{2}bh  \right)\\&#10;--------------\\&#10;9\left(\cfrac{1}{2}bh  \right)\textit{ is really 9 times }\cfrac{1}{2}bh&#10;\\\\&#10;\textit{whatever the value of }\cfrac{1}{2}bh \textit{may be}&#10;\end{cases}

-------------------------------------------------------------------------

\bf A=\cfrac{1}{2}bh\qquad &#10;\begin{cases}&#10;b=2\\&#10;h=3&#10;\end{cases}\implies A=\cfrac{1}{2}\cdot 2\cdot 3\to 3&#10;\\\\\\&#10;\textit{now, let us scale "b" and "h" by 3}&#10;\\\\&#10;A=\cfrac{1}{2}\cdot  3b\cdot  3h\qquad &#10;\begin{cases}&#10;b=2\\&#10;h=3&#10;\end{cases}\implies A=\cfrac{1}{2}\cdot (3\cdot 2)\cdot (3\cdot 3)&#10;\\\\\\&#10;A=\cfrac{1}{2}\cdot 6\cdot 9\to 3\cdot 9\to 27
3 0
4 years ago
As a part of a contest, a computer picks a digit from 0 to 7, inclusive, 3 times. if the 3 digits are all the same, the contesta
EastWind [94]
There are 8 numbers for the computer to choose from.
So the probability of choosing a particular number is 1/8.
The first number can be any one of the 8.
The second and the third must be the same as the first, with probability 1/8.

Therefore the probability that all three numbers are the same
= (1/8)(1/8) = 1/64   [ player will win a prize ] 
(=0.03125)
7 0
4 years ago
Read 2 more answers
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