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katrin [286]
3 years ago
11

Points Y and Z are the same distance from point X on a number line. The coordinate of point X is –7 and the coordinate of point

Y is –1.
What is the coordinate of point Z?
Mathematics
2 answers:
Mars2501 [29]3 years ago
5 0
Since you know that point Y and point Z are equal distance form point F, you will need to know the distance between point Y, -1, and the distance between point X, -7. So, the total distance, after subtracting -1 from -7, is -6.  So, you will then subtract another -6 from -7, to get -13, which is the coordinate of point Z.
xz_007 [3.2K]3 years ago
5 0

Answer:

C)StartRoot 61 EndRoot

Step-by-step explanation:

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If 27^x=9/3^x ,then the value of x is
Korolek [52]

Answer:

x = 0.5

Step-by-step explanation:

Well, we have in this case a exponent equation

27^{x} = \frac{9}{3^{x}}

Factoring 27 = 3^{3}

Our new equation is:

3^{3x}=\frac{3^{2}}{3^{x}}

Applying the property of exponents, on the right we'll have just like that:

3^{3x} = 3^{2-x}

now, it's easy to solve this equation. You must solve 3x = 2 - x because the basis of these exponents are equal.

3x = 2 - x

3x + x = 2

4x = 2

x = 1/2 or 0.5

5 0
3 years ago
If a sequence contains only whole numbers, which of these sequences could include the term 27?
erik [133]
Depending on the first term, the sequences
a_n=2a_{n-1}+1
\\
\\a_n=3a_{n-1}
\\
\\a_n=a_{n-1}+6
would work.

If the sequence began at 6, 
a_n=2a_{n-1}+1=6, 13, 27, ...

If the sequence began at 1, 
a_n=3a_{n-1}=1, 3, 9, 27, ...

If the sequence began at 3, 
a_n=a_{n-1}+6=3, 9, 15, 21, 27, ...
3 0
3 years ago
Read 2 more answers
Piper can run 3 laps in 8 minutes. Walker can run 10 laps in 25 minutes. Sophie can run 1 lap in 3 minutes. Who is the slowest r
Elanso [62]

Answer:

Sophie

Step-by-step explanation:

For each runner, divide their time running by the laps they ran.

Piper: 8÷3≈2.7

Walker: 25÷10=2.5

Sophie: 3÷1=3

Sophie takes the longest time to run one lap, she is the slowest.

8 0
3 years ago
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A culture started with 5000 bacteria. after 4 hours, it grew to 6000. Predict how many bacteria will be present after 17 hours
kykrilka [37]

Answer:

A culture started with 5000 bacteria. after 4 hours, it grew to 6000.

=> Increasing rate = difference/time = (6000 - 5000)/4 = 250 bacteria/hour

=> The number of bacteria after 17 hours:

N = 5000 + 250 x 17 = 9250 bacteria

Hope this helps!

:)

4 0
3 years ago
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What is an equation of the line that passes through the points (4,4) and (8.1)
andrey2020 [161]

Answer:

  • y = - 3/4x + 7

Step-by-step explanation:

<u>Use both points and find the slope:</u>

  • m = (1 - 4) / (8 - 4) = - 3/4

<u>Find the line, using point-slope form and point (4, 4):</u>

  • y - 4 = - 3/4(x - 4)
  • y - 4 = - 3/4x + 3
  • y = - 3/4x + 7
5 0
2 years ago
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