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3 years ago

PLEASE HELP FAST. ILL GIVE YOU BRAINLIEST. 10 POINTS

Mathematics

2 answers:

Vinil7 [7]3 years ago

4 0

Answer:

127°

Step-by-step explanation:

First, add everything together.

112 + 133 + 128 + 100 + 120 = 593

Then. subtract 720 - 593

720 - 593 = 127

So, the missing angle is 127°

Hope this helps you out

Burka [1]3 years ago

3 0

Answer:

127°

Step-by-step explanation:

First, add everything together.

112 + 133 + 128 + 100 + 120 = 593

Then. subtract 720 - 593

720 - 593 = 127

So, the missing angle is 127°

Have a great day!

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Write the equation of a circle with a center (-9,0) and radius 2√5

Usimov [2.4K]

Answer:

( x + 9)² + y² = 20

Step-by-step explanation:

The standard equation of a circle is ( x – h)² + ( y - k)² = r², where the center is (h, k) and r is the radius. By plugging in the given numbers from the question, we have [ x – (-9)]² + ( y - 0)² = (2√5)².

( x + 9)² + y² = (2)(√5)(2)(√5)

(2)(2) = 4 (√5)(√5) = 5 (4)(5) = 20

( x + 9)² + y² = 20

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4 years ago

Please help me lol the struggle is real

s344n2d4d5 [400]

<span> You can find the circumference of a circle just by multiplying the diameter by pi. Plugging π into your calculator will give you its numerical value, which is a closer approximation of 3.14 or 22/7. Plug the given value of the diameter into the formula and solve.</span>

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4 years ago

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In 20 years charles will bevthree time as old as he is now. how old is he now?

NemiM [27]

Answer:

10

Explanation:

Make our unknown equal to x, in this case his current age.

In 20 years he will be three times as old as he is now, in other words:

x + 20 = 3x

Now solve the equation:

20 = 3x - x
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3 years ago

Use the method of disk or washer to set up, but do not evaluate, an integral for a volume of the solid obtained by rotating the

Sedbober [7]

Answer:

V = π /2 volume units

Step-by-step explanation:

Volume of y = √x bounded by y = x and y = 1

y = √x

limits of integration ( see Annex )

By simple inspection limits of integration are x = 0 to x = 1

or y = √x and y = x

solving these two equations

x = 0 y = 0 x = 1 y = ± 1

V = ∫ π*f(x)²*dx

V = π * ∫₀¹ x*dx = π * x²/2 |₀¹

V = π * (1/2) - 0

V = π /2 volume units

3 0

3 years ago

How do I calculate the shaded area of this shape ?

TEA [102]

SOLUTION:

We are to calculate the shaded area of the given shape.

CONCEPT:

This is a triangle that a rectangle was cut out from.

To calculate the shaded area of the given shape, we are to find the area of the triangle and then subtract the area of the recangle that was cut out.

$\begin{gathered} \text{Area of Triangle:} \\ A\text{ = }\frac{1}{2}\text{ base }\times\text{ height} \\ \\ A\text{ = }\frac{1}{2}\text{ }\times\text{ 6m }\times7m\text{ } \\ \\ A=21m^2 \end{gathered}$ $\begin{gathered} \text{Area of Rectangle:} \\ A=L\text{ }\times\text{ W } \\ A\text{ = 4m }\times\text{ 2m} \\ A=8m^2 \end{gathered}$

The shaded area = Area of the triangle - Area of the rectangle

$\begin{gathered} \text{Shaded area = 21 m}^2-8m^2 \\ \text{Shaded area = 13 m}^2 \end{gathered}$

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1 year ago