2 years ago

Help me number 2. no nonsense answer. if not, i will report it

Mathematics

1 answer:

neonofarm [45]2 years ago

8 0

x²+y²-4x-2y-4=0 can be written as

(x²-4x+4)-4+(y²-2y+1)-1-4=0 (completing square)

(x-2)²+(y-1)²=9

Centre=(2,1) and radius=3

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Suppose you work for a large coffee distributor that has a secret coffee blend it sells to local stores. You mix the House blend

TiliK225 [7]

The ratio House blend/Organic Free Trade blend is the same and must remain the same.

So, the proportion is:

$\frac{140}{168}=\frac{130}{x}$

Where x is the unknown amount of the Organic Free Trade blend.

So, from the proportion, we have:

$\begin{gathered} 140\cdot x=168\cdot130 \\ 140x=21840 \\ \frac{140x}{140}=\frac{21840}{140} \\ x=156 \end{gathered}$

Answer: 156 pounds of Organic Free Trade blend

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10 months ago

Marcus needs 3 1/10 m of blue fabric and 1 1/5 m of yellow fabric to make his costume. How much more blue fabric than yellow fab

Kamila [148]

Answer:

$1\frac{9}{10}\ m$

Step-by-step explanation:

we know that

To find out how much more blue fabric than yellow fabric does Marcus need, subtract the quantity of yellow fabric from the quantity of blue fabric

step 1

Convert mixed number to an improper fraction

$3\frac{1}{10}\ m=\frac{3*10+1}{10}=\frac{31}{10}\ m$

$1\frac{1}{5}\ m=\frac{1*5+1}{5}=\frac{6}{5}\ m$

step 2

Subtract the numbers

$\frac{31}{10}-\frac{6}{5}=\frac{31}{10}-\frac{12}{10}=\frac{19}{10}\ m$

Convert to mixed number

$\frac{19}{10}\ m=\frac{10}{10}+\frac{9}{10}=1\frac{9}{10}\ m$

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2 years ago

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Select all the expressions whose value is larger than 100.

scZoUnD [109]

Answer:

120% of 100. 20% of 800. 500% of 400. 1% of 1,000

Hope this helps :)

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2 years ago

3w - (7w + 12) = 2(w – 3)<br><br>how do u do this step by step

exis [7]

3w-7w-12=2w-6

-4w-12=2w-6

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3 years ago

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It takes 8 men 96 days to build a tower. working at same rate, how long will it take 12 men

Kryger [21]

Answer:

the answer is 64 im 100% sure

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3 years ago