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steposvetlana [31]
3 years ago
12

5. 2x+y=4 ty 2 -20 2 2

Mathematics
1 answer:
ZanzabumX [31]3 years ago
6 0

Answer: y= (-2)x + 4

graph:

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4c^2-8c-1=0 complete the square round to nearest hundredth
olga55 [171]
Move constant to other side
add 1
4c^2-8c=1
divide by 4 to make leading coeficient 1
c^2-2c=1/4
take 1/2 of linear coeficient and square it
-2/2=-1, (-1)^2=1
add that to both sides
c^2-2c+1=1/4+1
factor perfect squaer and add
(c-1)^2=5/4
square root both sides
c-1=+/-(√5)/2
add 1
c=1+/-(√5)/2

c=2.12 or -0.12
8 0
3 years ago
There are 454 grams in a pound. Convert 330 grams to ounces.How many centimeters are in a kilometer?
puteri [66]

Answer:

<u><em>11.6404 ounces.</em></u>

<u><em>100,000 centimeters in a kiliometer</em></u>

Step-by-step explanation:

Plz mark brainliest.

3 0
3 years ago
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Pls help for brainliest
Minchanka [31]

。☆✼★ ━━━━━━━━━━━━━━  ☾

πr^2 = area

Half the diameter to get the radius

Substitute the values in:

area = 3.142 x (7)^2

area = 153.958 cm^2

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8 0
3 years ago
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Which of these terms indicates the exchange of goods and services between countries
kupik [55]
International trade. 
5 0
3 years ago
Please help! Could you answer all!?
Brums [2.3K]

Answer:

1.) 48

2.) 65

3.) 36

Step-by-step explanation:

1.)     If the equation is 6(x-4) and x = 12, then all we have to do is plug in the value of x. When we plug in, all we do is substitute 12 for x because they mentioned in the question that x = 12. So, we end up getting 6(12 - 4). After solving this, we get 48.

2.)     This problem is a lot like the last problem. All we need to do is substitute /plug in the values of x and y into the equation, to get 4(4^2) - 35/7 - (8 + 14). After solving, we get 65.

3.) .     This problem, once again, is also a lot like the last problems. We need to substitute the value of x into the equation 8x+12. Since we know from the problem that x is 3, all we have to do is 8 * 3 + 12.

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3 years ago
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