Answer:
A
Step-by-step explanation:
The formula for circumference is C = 2r. When plugging in these values, 2 x 3.14 x 4.5 is equal to 28.26.
There are 109 such pairs - unless you don't want to count the combinations of the same numbers but in different order (e.g. 50 + 60 and 60 + 50) - then there are 55 such pairs (up to 55 + 55).
You can also count 0 - sometimes we treat it as a whole number, sometimes we don't - then add two pairs (0 + 110 and 110 + 0) to the 109 pairs result, or 1 pair for 55 pairs result.
<span>I hope it's quite understandable :)</span>
Answer:
- y = 1.5x
- y = 15 when x = 10
Step-by-step explanation:
A direct variation equation is of the form ...
y = kx
for some constant k. We can arbitrarily choose k=1.5, so our equation is ...
y = 1.5x
For x=10, the value of y is ...
y = 1.5·10 = 15
Answer:
length is (-7,-1) and radius is 6
Step-by-step explanation:
We are given the expression of the equation of a circle that is
x2 + y2 + 14x + 2y + 14 = 0.
Using completing the squares:
x2 + y2 + 14x + 2y + 14 = 0(x+7)^2 + (y+1) ^2 = -14 + 49 + 1(x+7)^2 + (y+1) ^2 = 36 center thus is at (-7,-1) and the radius is equal to square root of 36 equal to 6.
Answer: BEARINGS. Items included with question papers. Nil. Materials required for examination ... (b) On the diagram, draw a line on a bearing of 107° from A. ... 6.8cm. The scale of the diagram is 1 cm represents 5 km. (a) Work out the real distance between L and ... (c) On the diagram, mark the position of boat B with a cross (*
Step-by-step explanation: