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3 years ago

I need help on how to find the shaded area and how to explain it

Mathematics

1 answer:

kolbaska11 [484]3 years ago

6 0

The diameter of the circle is the hypotenuse of the triangle

$\sqrt{3^{2} + {4}^{2} }$

so find:

the area of the triangle ((b*h)/2)
the ray of the circle (d/2)
the area of the circle r*r*π
Now subtract from the area of the circle the area of the triangle

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Please help!!! <br> And try to show your work if you can:)

maxonik [38]

Answer:

equation~ 2x + 5= 2X + 8

Value of X~ 0.3

Perimeter:13

Step-by-step explanation:

equation: 2x + 5 =2x +8

2x + 5= 2x+ 8

4x + 5= 8

4X= 13

x= 0.3

value of X: 0.3

Perimeter: 13

8 0

3 years ago

11. Find the product: (50z + 20)(10z + 4) ( 1 ) 12. Find the product: (88a + 80)(8a + 8) ( 1 ) 13. Find the product: (40y + zy)(

Vika [28.1K]

Answer:

11. $500z^{2} +400z+80$

12. $704a^2 + 1344a + 640$

13. $160y^2 + 44zy^2 + z^2y^2$

Step-by-step explanation:

11. $(50z + 20)(10z + 4) = ?$

Using Formula:

$(a+b) (c+d) = a(c+d)+b(c+d)$

$50z(10z+4) + 20(10z + 4) = \\\Rightarrow 500z^{2} + 200 z+200z+80\\\Rightarrow 500z^{2} +400z+80$

12. $(88a + 80)(8a + 8) = ?$

Using Formula:

$(a+b) (c+d) = a(c+d)+b(c+d)$

$\Rightarrow 88a(8a+8) + 80(8a + 8)\\\Rightarrow 704a^2 + 704a + 640a + 640\\\Rightarrow 704a^2 + 1344a + 640$

13. $(40y + zy)(4y + zy) = ?$

Using Formula:

$(a+b) (c+d) = a(c+d)+b(c+d)$

$\Rightarrow 40y(4y + zy) + zy(4y + zy)\\\Rightarrow 160y^2 + 40zy^2 + 4y^2z + z^2y^2\\\Rightarrow 160y^2 + 44zy^2 + z^2y^2\\$

7 0

3 years ago

What is the exact value of sin 60° ?

bearhunter [10]

Answer:

The exact value of $\sin(60\degree)$ is $\frac{\sqrt{3} }{2}$ .

Step-by-step explanation:

Recall that $\sin(60\degree)$ is a special angle that can be obtained using an equilateral triangle.

The right triangle obtained using one of the lines symmetry was used to find the exact value of $\sin(60\degree)$ using SOH-CAH-TOA

The exact value of $\sin(60\degree)$ is $\frac{\sqrt{3} }{2}$ .

5 0

3 years ago

The number of feet in i inches

joja [24]

If you mean 1 insted of i it would be a 1/12 or a twelef
I believe that I spelt some words wrong so double check

7 0

4 years ago

Pls can someone help

Bumek [7]

Answer:

You need to try and find the total cost of the food and drink and subtract it from the amount of money Simon pays.

Two cups of coffee costs 2.78 so -

2.78 + 2.78 = 5.56

One piece of cake costs 2.85 so the total amount is

5.56 + 2.85 = 8.41

Now we know the total, we can subtract it from the money given.

10 - 8.41 = 1.59

<u>Simon will get 1.59 in change.</u>

3 0

3 years ago

Read 2 more answers