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nikitadnepr [17]
3 years ago
11

Which of the following correctly relates the measures of the measures of the measures of the diameter (d) and radius (r) of a ci

rcle
A) d=r/2
B) r=2d
C) r=d/2
D) d=2/r
Mathematics
2 answers:
yaroslaw [1]3 years ago
4 0

Hey!

Diameter is ½ of the radius. To find the radius when you have the diameter, divide by 2.

For example, if the diameter is 12, the the radius would be:

12 \div 2 = 6

<em>That means your answer will be C.</em>

\framebox{Answer is C) r = d/2}

lozanna [386]3 years ago
3 0

Hello! The correct answer is: \boxed{ \bf C) r=d/2} _____________________________

The radius of a circle is half the diameter. In other words, if you divide the diameter by 2, you get the radius. Thus, the correct answer is option C).

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And could someone please help me with this one please
Goshia [24]

Answer:

C

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

here (h, k) = (5, 2), thus

y = a(x - 5)² + 2

To find a substitute (4, - 3) into the equation

- 3 = a + 2 ⇒ a = - 3 - 2 = - 5

y = - 5(x - 5)² + 2 ← in vertex form

Expand (x - 5)² and distribute by - 5

y = - 5(x² - 10x + 25) + 2

  = - 5x² + 50x - 125 + 2

  = - 5x² + 50x - 123 ← in standard form

8 0
3 years ago
Add the polynomials. Be sure to write your answer in standard form. (−4x3−5x+2)+(4x3+10)
Marat540 [252]
-5x+12 is the answer
4 0
3 years ago
Use the following function rule to find f(3).
Vedmedyk [2.9K]

Answer:

f(3)= 33

Step-by-step explanation:

hello :

f(x) =8x+9

put x = 3    you have : f(3) =8(3)+9 = 24 + 9 =33

7 0
2 years ago
Please help! I'm super confused.
stich3 [128]

<u>Answer:</u>

10y + 2

<u>Step-by-step explanation:</u>

The formula for the perimeter of a rectangle or square is [length + length + width + width = perimeter  or  2(length) + 2(width) = perimeter]

Our length here is y + 2. Either formula you use, [(y+2) + (y+2) or 2(y+2)] you should get the answer 2y + 4.

Next our width. The width is 4y-1. Either formula you use, [(4y-1) + (4y-1) or 2(4y-1)] you should get 8y - 2.

Then, simply add (2y+4) and (8y-2) to get 10y + 2. So, the perimeter of the garden is 10y + 2.

I hope this helps!

5 0
3 years ago
What is the measure of the missing angle?<br> 90°<br> 600<br> 7.
RideAnS [48]

Answer:

30°

Step-by-step explanation:

Let the measure of the missing angle be x°

Therefore, by interior angle sum postulate of a triangle:

x + 60° + 90° = 180°

x + 150° = 180°

x = 180° - 150°

x = 30°

Thus the measure of the missing angle is 30°.

4 0
2 years ago
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