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alexandr402 [8]
3 years ago
15

Am i right ? i just want make sure

Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

Step-by-step explanation:

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What is the value of the discrinant of the quadratic equation -2x^2=-8x+8
Serga [27]

Answer:

Step-by-step explanation:

-2x²=-8x+8 means : -2x²+8x-8

the discrinant of the quadratic equation is : delta = b²-4ac

when a=-2 and b=8 and c= -8

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3 years ago
In a​ volcano, erupting lava flows continuously through a tube system about 15 kilometers to the sea. Assume a lava flow speed o
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Answer:

  30 hours

Step-by-step explanation:

The relation between time, speed, and distance is ...

  time = distance/speed

  time = (15 km)/(0.5 km/h) = 30 h

It takes 30 hours for the lava to reach the sea.

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2 years ago
Which two triangles are congruent by the ASA Theorem? Complete the congruence<br><br> statement
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3 years ago
Read 2 more answers
In this situation, which equation is NOT equivalent to the rest? Mrs. Jones deducts $3 from each of her 5 children's allowances
lawyer [7]

Answer:

c. 5x - 3 = 125

Step-by-step explanation:

Mrs. Jones deducts $3 from each of her 5 children's allowances this week because they didn't finish their chores. They then received a total of $125 in allowance. a. 5(x - 3) = 125

b. 5x - 15 = 125

c. 5x - 3 = 125

d. 5x = 140

Solution:

Let x represent the allowance for each of Mrs. Jones children. Since she deducts $3 from each children because they didn't finish their chores, the allowance for each child becomes x - 3.

There are 5 children, hence the allowance for the 5 children would be:

5(x-3)

Since they received a total of $125 in allowance, hence:

5(x-3) = 125

5x - 15 = 125

5x = 125 + 15

5x = 140

Option c is wrong

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2 years ago
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