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____ [38]
2 years ago
7

Hey guys. Need help here

Mathematics
1 answer:
Veronika [31]2 years ago
6 0
Answer is probably D
Here is how i did,
i can be wrong but thats how i figure it out

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It is given that D is inversely proportional to v m
Darina [25.2K]

Answer:

Step-by-step explanation:

D=\frac{k}{\sqrt{m}}\\\\64=\frac{k}{\sqrt{9}}\\\\64=\frac{k}{3}\\\\ 64*3=k\\\\k=192\\a)D=\frac{192}{\sqrt{4}}\\\\=\frac{192}{2}\\\\D=96\\\\b)32=\frac{192}{\sqrt{m}}\\\\  32*\sqrt{m}=192\\\\\sqrt{m}=\frac{192}{32}=6\\\\m=36

8 0
4 years ago
If the cost of 100 copies is $3.10, how many copies can be made for $155?
Tatiana [17]
<em> Given that:</em> 100 copies = $3.10

<em>Find cost of 1 copy:</em>
1 copy = $3.10 ÷ 100 = $0.031 

<em>Find the cost of 155 copies: </em>
155 copies = $0.031 x 155 = $4.81 (nearest hundredth)

Answer: $4.81
3 0
3 years ago
To enlarge or reduce a shape you must:
marta [7]
<h2><em>To enlarge or reduce any shape you must begin by working out the scale factor, this is calculated by using the following formula: </em></h2><h2><em> </em></h2><h2><em>For an enlargement = large number ÷ small number </em></h2><h2><em> </em></h2><h2><em>For a reduction = small number ÷ large number</em></h2>
7 0
3 years ago
Please please help please
nikklg [1K]

Answer: It will still measure the same at 30 degrees.

Step-by-step explanation:

A rotation just changes orientation, not size or measure

5 0
4 years ago
Read 2 more answers
Anyone knows the number sequence of 7,8,15,23,38? ​
OLga [1]
Sequence
8 - 7 = 1
15 - 8 = 7
23 - 15 = 8
38 - 23 = 15
For more sequences
38 + 23 = 61
Then
61 + 38 = 99
And so on the sequence continue
5 0
3 years ago
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