3 years ago

How to know the equation and solve it?

Mathematics

2 answers:

Aneli [31]3 years ago

5 0

Answer:

This is your answer. thanks!!

baherus [9]3 years ago

3 0

Answer:

i added all the values because the total angle of the interior triangle should give 180 °.

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Setler [38]

Answer:

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3 years ago

Given f(x)=3x2−5x−2 .<br><br> What is the value of f(−23) ?

Sonja [21]

$f(x) = {3x}^{2} - 5x - 2 \\ f( - 23) = ... \\ f( - 23) \: means \: x = - 23 \\ so \: f( - 23) = {3( - 23)}^{2} - 5( - 23) - 2 \\ = 3(529) + 115 - 2 \\ = 1700$

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2 years ago

Please answer this question

Bogdan [553]

C=(1/4)*circumference
Area=pq+3.142r^2
60*3.142=pq+3.142p^2
q=((1/4)*2p*3.142)+2*3.142
q=1.571p+6.284
188.52=1.571p^2+6.284p+3.142p^2
188.52=4.713p^2+6.284p
188520=4713p^2+6284p

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3 years ago

If every gram of salt is 20.9% chlorine, how much is required to make a 220 ppm chlorine solution with 350 grams of water?

Temka [501]

Answer:

The amount of salt required is 0.3685 grams.

Step-by-step explanation:

20.9% of 1 gram of salt is chlorine, which means the grams of chlorine in 1 gram of salt are

$\dfrac{20.9\%}{100\%} *1\: gram = 0.209g\: \text{chlorine}$