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Maurinko [17]
3 years ago
5

A farmer has 9 pigs. 10% of the animals on his farm are pigs. Shayla found that the farmer has 111 animals. She made this ratio

table to check her answer.
Is Shayla’s table correct? Why?
A. No, she used the wrong values in the table.
B. Yes, the parts in the left column correspond to the wholes in the right column.
C. Yes, the values for parts and wholes are placed in the correct columns.
D. No, she reversed the values in the Whole column and found the incorrect number of animals.
Mathematics
1 answer:
viktelen [127]3 years ago
6 0

A

if a farmer had 9 pigs and that is 1/10 of his farm animals

9 (=1)

9 x 10 = 10/10 (or 90)

the total farm animals would be 90

so the answer is A.

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What is the exact circumference of a circle with a radius of 12 inches?
Anestetic [448]
We can get the circumference of any circle in terms of the radius with this formula. C = 2\pir.

Where r is the radius of the circle.

And we will use 3.14 for \pi.

Plug in all the values.

C = 2 * 3.14 * 2

C = 12.56

So, the circumference of the circle is 12.6 inches when rounded to the nearest tenth.
8 0
3 years ago
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Chandani purchased some parrots. 20% flew away and 5% died. Of the remaining, 45% were sold. Now 33 parrots remain. How many par
Paha777 [63]

Answer:

80 parrots were purchased.

Step-by-step explanation:

Let the total number of parrots be k.

If 20% (or 20/100 = 1/5) flew away and 5% (5/100 = 1/20) died, the remaining parrots will be k – (¹/₅k + ¹/₂₀k) = k – ¼k = ¾k.

Of the remaining, 45% (or 45/100 = 9/20) were sold, which means the total number of sold parrots will be ¾k × ⁹/₂₀ = ²⁷/₈₀k.

The remaining parrots = ¾k – ²⁷/₈₀k = ³³/₈₀k = 33

k = 33 × ⁸⁰/₃₃ = 80 parrots were purchased.

8 0
3 years ago
What does the quantity 28-8 represent?
nikklg [1K]
You question implies simple subtraction is needed:

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5 0
2 years ago
Which of the following are identities? Check all that apply
Natasha2012 [34]

Answer:

A, C

Step-by-step explanation:

Actually, those questions require us to develop those equations to derive into trigonometrical equations so that we can unveil them or not. Doing it only two alternatives, the other ones will not result in Trigonometrical Identities.

Examining

A) True

\frac{1-tan^{2}x}{2tanx} =\frac{1}{tan2x} \\ \frac{1-tan^{2}x}{2tanx} =\frac{1}{\frac{2tanx}{1-tan^{2}x}}\\ tan2x=\frac{1-tan^{2}x}{2tanx}

Double angle tan2\alpha =\frac{1 -tan^{2}\alpha }{2tan\alpha}

B) False,

No further development towards a Trig Identity

C) True

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sin(8x)=2sin(4x)cos(4x)\\2sin(4x)cos(4x)=2sin(4x)cos(4x)

D) False No further development towards a Trig Identity

[sin(x)-cos(x)]^{2} =1+sin(2x)\\ sin^{2} (x)-2sin(x)cos(x)+cos^{2}x=1+2sinxcosx\\ \\sin^{2} (x)+cos^{2}x=1+4sin(x)cos(x)

7 0
3 years ago
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Does anybody know how to do this please help meee
Mariulka [41]

Answer:

A

Step-by-step explanation: I believe it's A because It's the opposite but I'm not 100% certain, because I don't remember inverse statements.

6 0
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