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Elan Coil [88]
3 years ago
11

Evaluate 2(x + 1) - 3 when x = 6. ОА. 5 ов. 8 Ос. 11 OD. 10

Mathematics
1 answer:
MrMuchimi3 years ago
6 0

Answer:

plz mark brainliest.......

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work shown below

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2 years ago
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Solve system if equations
Alexandra [31]

Answer:

(2, 9)

x = 2

y = 9

Step-by-step explanation:

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To solve by graphing, we graph both of the equations and find the point at which the lines intersect.

[Graph]

-> See attached

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

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Multiply (x + 3)(x – 3).
lyudmila [28]
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3 years ago
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Suppose that prices of recently sold homes in one neighborhood have a mean of $265,000 with a standard deviation of $9300. Using
Hatshy [7]

Answer:

Range  = (237100, 292900)

Step-by-step explanation:

Using Chebyshevs Inequality:

P(|X - \mu | \le k \sigma )\ge 1  -\dfrac{1}{k^2}= 0.889

1  -\dfrac{1}{k^2}= 0.889

\dfrac{1}{k^2}= 1- 0.889

\dfrac{1}{k^2}=0.111

k = \sqrt{\dfrac{1}{0.111}}

k \simeq 3

Thus, 88.9% of the population is within 3 standard deviation of the mean with the Range = μ  ±  kσ

where;

μ = 265000

σ = 9300

Range = 265000  ±  3(9300)

Range = 265000  ± 27900

Range =   (265000 - 27900, 265000 + 27900)

Range  = (237100, 292900)

3 0
2 years ago
sarah competes in a long jump competion. her first jump is 4.25m. her best jump is 12% more than this. however, her best jump is
maxonik [38]
Best jump=4.25+0.12(4.25)=4.76
best jump=75% of winning jump
Winning jump=4.76/75×100=6.35m
5 0
3 years ago
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