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Anna71 [15]
3 years ago
9

Which number line represents the solutions to x − 21 = 6?

Mathematics
2 answers:
zubka84 [21]3 years ago
8 0
27 because 21 +6 equals 27 then 27 take21=6
Pani-rosa [81]3 years ago
8 0

Answer:

x - 21 = 6

x = 27

Draw a number line with a closed circle at 27, no arrow because it's not an inequality

You might be interested in
What’s the amplitude and the period of this function?
Iteru [2.4K]

The amplitude and the period of the function are 3 and 2, respectively.

<h3>What are the amplitude and the period of a sinusoidal function?</h3>

Sinusoidal functions are periodic bounded functions whose form is described below:

y = A · sin (2π · t / T + Ф) + y'

Where:

  • y' - Midpoint
  • A - Amplitude
  • t - Time
  • Ф - Phase
  • T - Period

The period is the horizontal distance between two consecutive peaks or two consecutive bottoms and the amplitude is equal to the half of the distance between a peak and a consecutive bottom. Hence, the amplitude and the period are, respectively:

Amplitude

A = 0.5 · [2 - (- 4)]

A = 3

Period

T = 2 · [0.75 - (- 0.25)]

T = 2

To learn more on sinusoidal functions: brainly.com/question/24336803

#SPJ1

6 0
2 years ago
2. State the domain for the following ordered pairs: { (4, -2), (6, -7), (4, 3), (-8, 1), (-3, 5) } *
Fofino [41]

Answer:

(4,6,4,-8,-3)

Step-by-step explanation:

Domain means of function is the set of all possible inputs for function

4 0
3 years ago
Please help!!!! ASAP!!!​
evablogger [386]

Step-by-step explanation:

...x=+2...

...y=-3...

6 0
3 years ago
Rewrite x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers, to determine the a and b values.
Setler79 [48]

Answer:

Therefore values of a and b are

a=3\ and\ b = 2

Step-by-step explanation:

Rewrite x^{2}-6x+7=0 in the form

(x-a)^{2}=b

where a and b are integers,

To Find:

a = ?

b = ?

Solution:

x^{2}-6x+7=0 ..............Given

Which can be written as

x^{2}-6x=-7

(\frac{1}{2} coefficient\ of\ x)^{2}=(\frac{1}{2}\times -6)^{2}=9

Adding half coefficient of X square on both the side we get

x^{2}-6x+9=-7+9=2 ...................( 1 )

By identity we have (A - B)² =A² - 2AB + B²

Therefore,

x^{2}-6x+9=x^{2}-2\times 3\times x+3^{2}=(x-3)^{2}

Substituting in equation 1 we get

(x-3)^{2}=2

Which is in the form of

(x-a)^{2}=b

On comparing we get

a = 3 and b = 2

Therefore values of a and b are

a=3\ and\ b = 2

4 0
3 years ago
If the sum of a number and eight is doubled, the result is three less than the number. Find the number.
nydimaria [60]

Answer:

n = -19

Step-by-step explanation:

2(n+8) = n - 3

2n + 16 = n - 3

2n = n - 19

n = - 19

8 0
3 years ago
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