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3 years ago

What is the exact circumference of a circle with a diameter of 15 in.? Enter your answer in the box.

Mathematics

1 answer:

Triss [41]3 years ago

8 0

Answer:

If im not mistaken, the answer is 47.1

Step-by-step explanation:

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Which graph represents the given equation? <br><br> Y = 3/2x^2 + 4x - 2

lana [24]

Answer:

The graph is B

8 0

3 years ago

A solution to a linear system" means which of the following? The y-intercepts are the same A) The rates of change for both funct

Karo-lina-s [1.5K]

the x and y values makes both equations true

Explanation

a linear system is the set of 2 linear equations.

Step 1

the solution to a linear system is the coordiante where the line intersect, this coordiante satisfies both equations, then

the x and y values makes both equations true

8 0

1 year ago

ASAP!! (12y + 8) (5y + 2) 2x st (sy

VladimirAG [237]

Answer:

y = 10

x = 64

Step-by-step explanation:

the equations containing y are adjacent angles in a parallelogram, meaning that they are supplementary, so we can create an equation:

5y + 2 + 12y + 8 = 180

solve this to get y = 10

the equation for x would be 2x + 5y + 8 = 180 because these angles are also supplementary

solve this to get x = 64

3 0

3 years ago

2 ( −14 + r ) − ( −3r − 5 )

svet-max [94.6K]

-28+2r+3r+5
simplified it is -23+5r

4 0

3 years ago

Read 2 more answers

Find the length of the tangent segment AB to the circles centered at O and O' whose radii are a and b respectively when the circ

bixtya [17]

Answer:

$AB=2\sqrt{ab}$

Step-by-step explanation:

From figure,

$OA=a, \quad \quad O'B=b\\\Rightarrow OO'= (a+b) \quad \quad \text{and}\quad OD=(a-b)$

In triangle $OO'D$

$(OO')^2=(OD)^2+(O' D)^2$

$\Rightarrow (a+b)^2=(a-b)^2+(O' D)^2\\\Rightarrow a^2+b^2+2ab-a^2-b^2+2ab=(O' D)^2\\\Rightarrow 4ab=(O' D)^2\\\Rightarrow O'D=2\sqrt{ab} \\\Rightarrow O' D=2\sqrt{ab}=AB \quad \quad [\because O' DAB\;\; \text{is a rectangle.}]$

Hence, $AB=2\sqrt{ab}$

6 0

3 years ago