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amid [387]
3 years ago
15

What is the value of b? A right triangle with an angle measure of fifty-one degrees and an unknown angle measure, b degrees.

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0
A triangle will have a total of 180 degrees.

Since it is a right triangle, we know that one angle is 90 degrees. We also know that one of the other angles is 51.

90 + 51 + x = 180
141 + x = 180

Subtract 141 on both sides.

x = 180 - 41
x = 39

The value of b is 39 degrees.
lozanna [386]3 years ago
3 0
<span>90 + 51 = ?

90 + 51 = 141

180 - 141 = 39

Answer: B = 39 degrees </span>
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Chords AC and DB intersect at point E. Find the value of x.
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3 years ago
When deriving the quadratic formula by completing the square, what expression can be added to both sides of the equation to crea
nignag [31]

The expression that would be added to both sides is (b/2a)^2

<h3>How to determine the expression?</h3>

The equation is given as:

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Hence, the expression that would be added to both sides is (b/2a)^2

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1 year ago
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snow_lady [41]

Answer:

(-2, 4)

Step-by-step explanation:

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6 0
3 years ago
A circle has a diameter of 8cm, what is the perimeter and the area of the circle
Shkiper50 [21]

Answer:

❥

Diameter of a circle is 8 cm. Then find out the area and perimeter of the circle.

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Area of circle is 50.29(≈)cm² and perimeter of circle is 25.14(≈)cm.

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•Given :-

Diameter of the circle = 8 cm.

•To find :-

Area and perimeter of the circle.

• Solution :-

Let the radius of the circle be r cm.

Diameter = 8 cm.

We know,

★

So, Radius (r) = 8/2= 4 cm.

We know,

★

Area of circle= πr²

→Area of circle=

→Area of circle=

→Area of circle= 50.29(≈)cm²

____________________________

We know,

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Perimeter of circle= 2πr

→ Perimeter of circle=

→Perimeter of circle=25.14(≈)cm

8 0
3 years ago
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