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3 years ago

Find the value of c.

Mathematics

1 answer:

astraxan [27]3 years ago

8 0

Answer:

86°

Step-by-step explanation:

(a+c)/2=86

in this case, a=c

so,

2c/2=86

or, c=86

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n an orchard, there are 13 apple trees, 21 orange trees, and a cherry tree. What is the ratio of orange trees to cherry trees?

Yuri [45]

Answer:

21 : 1

Step-by-step explanation:

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3 years ago

The equation of circle having a diameter with endpoints (-2, 1) and (6, 7) is

densk [106]

Answer:

$(x-2)^{2}+(y-4)^{2}=25$

Step-by-step explanation:

step 1

Find the diameter of the circle

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

$A(-2,1)\\B(6,7)$

substitute the values

$d=\sqrt{(7-1)^{2}+(6+2)^{2}}$

$d=\sqrt{(6)^{2}+(8)^{2}}$

$d=\sqrt{100}$

$d=10\ units$

The radius is half the diameter

$r=10/2=5\ units$

step 2

Find the center of the circle

the center of the circle is the midpoint between the endpoints of the diameter

The center is

$(\frac{-2+6}{2},\frac{1+7}{2})$

$(2,4)$

step 3

Find the equation of the circle

The equation of the circle is

$(x-h)^{2}+(y-k)^{2}=r^{2}$

substitute the values

$(x-2)^{2}+(y-4)^{2}=5^{2}$

$(x-2)^{2}+(y-4)^{2}=25$

8 0

3 years ago

Which is the standard form for this number? (2 x 10) + (5 x 1) + (8 x 1 10,000 )

Veronika [31]

COMBINE LIKE TERMS
2x10+5x+80000x

(2x10)+(5x+80000x)

ANSWER
(2 x 10) + (5 x 1) + (8 x 1 10,000) = 2x10+80005x

4 0

4 years ago

B. 18.5 m, 11 m, 15 m

eduard

Answer:

What is the question, lady

5 0

3 years ago

Read 2 more answers

Instructions: Problem 1 ! Find the missing angle in the image below. Do not include spaces in your answers

sweet-ann [11.9K]

Answer:

40 degrees

Step-by-step explanation:

The 100 degree angle is supplementary to angle CED. This means CED will end up being 80 degrees. Since the angles in all triangles equate to 180 degrees 80 + 60 + angle D must equal 180 degrees. Therefore, angle D has to be 40 degrees.

5 0

3 years ago