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seropon [69]
3 years ago
8

Olivia thinks of a number she multiplies her number by 6 and gets an answear of -54 what was her original number

Mathematics
2 answers:
erastovalidia [21]3 years ago
7 0

Answer:

-9

Step-by-step explanation:

ella [17]3 years ago
3 0
-9
-54/6 =-9 so that is your answer
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The number T of teams that have participated in a robot-building competition for high-school students over a recent period of ti
Katarina [22]

Solving <u>the quadratic equation</u>, it is found that the number of teams is <u>greater than 1000</u> after 3.1 years.

The <u>number of teams after x years </u>is given by:

T(x) = 17.155x^2 + 193.68x + 235.81

Initially, there are T(0) = 236 teams. If will 1000 be when T(x) = 1000, thus:

17.155x^2 + 193.68x + 235.81 = 1000

17.155x^2 + 193.68x - 764.19 = 0

Which has coefficients a = 17.155, b = 193.68, c = -764.19, then:

\Delta = (193.68)^2 - 4(17.155)(-764.19) = 89950.66

x_{1} = \frac{-193.68 + \sqrt{89950.66}}{2(17.155)} = 3.1

x_{2} = \frac{-193.68 - \sqrt{89950.66}}{2(17.155)} = -14.3  

We want the positive root, so the number of teams is greater than 1000 after 3.1 years.

A similar problem is given at brainly.com/question/10489198

8 0
2 years ago
WILL GIVE BRAINLIEST AND 20 POINTS!
Gnoma [55]

Answer:

64 square yards

Step-by-step explanation:

If the room is a square, then all sides of the room should be equal. To find the area of the room, we would need to multiply 2 adjacent sides of the room, meaning 24 x 24 = 576. Since we need yards of carpet, not feet, and we know that 1 square yard is 9 square feet, we divide our total area in feet by 9. This gives us 64sq yards of carpet

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3 years ago
What’s -7= y/7 help fasttt you get 60 points
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If youre trying to solve for y, y=-49
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Step-by-step explanation:

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7×6

42cm2

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