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3 years ago

PLEASE HELP ASAP A 28.5 B 18.2 C 17.1 D 34.2

Mathematics

1 answer:

yaroslaw [1]3 years ago

4 0

Well it is really easy to answer this question. Firstly we can calculate the complete circles area which comes out to be pi*r^2 so it becomes 16 pi.

And now we can calculate the complete triangles area which comes out to be 1/2 * base * height so 1/2 * 8 * 4 = 16 cm^2.

Now we can subtract both of them and get our final shaded areas region. So 16 pi or 50.24 minus 16 = 34.2

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maks197457 [2]

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2 years ago

What is the answer to 0.5(2x + 8) = x - 4

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2 years ago

The yellow boxes on the bottom are the answers. Please help TYSM

sveticcg [70]

Answer:

$1.\ 8p = 64, p =8$

$2. -\dfrac{w}{4} = 8, w = -32$

$3. -5c = -20, c =4$

$4.\ 9m=45, m = 5$

$5. \dfrac{b}{25} = -3, b =-75$

$6. \dfrac{d}{-2} = 20, d=-40$

Step-by-step explanation:

Now let us see the detailed solution of each part:

Part 1:

$8p -15 = 49\\\Rightarrow 8p =49+15\\\Rightarrow 8p = 64\\\Rightarrow p =8$

Part 2:

$\dfrac{-w}{4}+18=26\\\Rightarrow \dfrac{-w}{4} = 26-18\\\Rightarrow \dfrac{-w}{4} = 8\\\Rightarrow -w = 8 \times 4\\\Rightarrow w =-32$

Part 3:

$-5c-15=-35\\\Rightarrow -5c = -35 +15\\\Rightarrow -5c = -20\\\Rightarrow c = 4$

Part 4:

$9m +10=55\\\Rightarrow 9m =55-10\\\Rightarrow 9m =45\\\Rightarrow m =5$

Part 5:

$\dfrac{b}{25}-83=-86\\\Rightarrow \dfrac{b}{25} = -86 +83\\\Rightarrow \dfrac{b}{25} = -3\\\Rightarrow b = -75$

Part 6:

$\dfrac{d}{-2}+85=105\\\Rightarrow \dfrac{d}{-2} = 105-85\\\Rightarrow \dfrac{d}{-2} = 20\\\Rightarrow d=20 \times -2\\\Rightarrow d =-40$

Please refer to attached image for the answers.

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3 years ago

What is the ninth term in the sequence an=21+5n

Anni [7]

Answer:66

Step-by-step explanation:

an=21+5n

ninth term is a9

a9=21+5x9

a9=21+45

a9=66

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3 years ago