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Agata [3.3K]
4 years ago
8

Please help!! It’s for chemistry

Mathematics
1 answer:
sergey [27]4 years ago
4 0
I can help, which question do you need help in?
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Find the area of the composite figure in terms of the figure (use 3.14 for pi)​
svp [43]

Answer:

105.12 ft²

Step-by-step explanation:

Let's first find the area of the rectangle.

10\cdot8=80 ft², so the rectangle has an area of 80ft².

To find the area of the semi-circle, we find the area of a whole circle and divide by two.

The formula to find the area of a circle is \pi r^2. The radius is 4, as the diameter is 8.

3.14\cdot4^2

3.14\cdot16

50.24\div2=25.12

Add 80 and 25.12:

80+25.12=105.12

Hope this helped!

5 0
3 years ago
I have a question on math homework, anybody have an answer?<br> 11.5-3y=-48.5
tatyana61 [14]
Y=17.8 Please let me know if it is correct :)

5 0
3 years ago
Please help me&lt;3<br> i will give brainliest to the right answer
marysya [2.9K]

Answer:

26.5

Step-by-step explanation:

Because the sales is $530 and the commission rate is 5%, the commission would be 5% of the sales, which would be $26.5

3 0
3 years ago
What is the completely factored form of x4 + 8x2 – 9?
weqwewe [10]

Answer:

Hope that the payment picture will help you.Please mark me brilliant

5 0
2 years ago
Work out the following giving your answers in their simplest form 2/7 ÷ 3/4​
Usimov [2.4K]

Answer:

8/21

Step-by-step explanation:

2/7 ÷ 3/4

2/7 * 4/3

8/21

3 0
3 years ago
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