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Eddi Din [679]
3 years ago
7

When the solution of x2 + 9x - 9 is expressed as

Mathematics
1 answer:
natita [175]3 years ago
5 0

answer

r = b²-4ac

= 81 + 36

= 117

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Paramecia are unicellular protists that have contractile vacuoles to remove excess intracellular water. In an experimental inves
Oksanka [162]

Answer:

B)

Step-by-step explanation:

The contraction rate increases as the osmolarity decreases because of the reduced amount of ATP produced by cellular respiration

3 0
3 years ago
Expand and simplify 5(2x-1) + 2(3x-6)
aleksklad [387]
5                     (2x-1)     +            2(3x-6)

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8 0
3 years ago
1000 students participated in a survey on a university campus about their TV watching habits. All
nasty-shy [4]

Hi, you've asked an unclear question. However, I inferred you may want to know the actual number of students represented by the percentages of 27%, and 61%.

<u>Explanation:</u>

Finding percentage usually involves performing two operations; multiplication and division.

First, all (100%) of respondents said they watched TV at least at some point during the day.

Next, 27% of respondents stated that they only  watched television during prime time hours, in which the actual number of students represented by the percentage is calculated by dividing 27 by 100 and multiplying by 1000 =

\frac{27}{100} * 1000 = 270.

Finally, we are told 61% of respondents stated that they spend prime time  hours in their dorm rooms. The actual number of students represented by the percentage is calculated by dividing 61 by 100 and multiplying by 1000 =

\frac{61}{100} * 1000 = 610

5 0
3 years ago
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SpyIntel [72]

Answer:

i can help

Step-by-step explanation:

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7 0
2 years ago
Find the x and y intercepts for the following equation. 4x - 2y = 16
irinina [24]

Answer:

( 4, 0 ) and ( 0,-8 )

Step-by-step explanation:

→ Rearrange into y = mx + c format

4x - 2y = 16

→ Minus 4x from both sides

-2y = -4x + 16

→ Divide everything by 2

-y = -2x + 8

→ Multiply everything by -1

y = 2x - 8

→ Substitute x = 0 to find the y-intercept and y = 0 to find the x intercept

x = 0 then y = -8 so ( 0,-8 )

y = 0 then x = 4 so ( 4, 0 )

4 0
3 years ago
Read 2 more answers
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