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irina [24]
3 years ago
13

Solve x2 - 4x + 1 = 0. x = 2+ 21-25 X = 4+ X = 2+ 3 x = -2+

Mathematics
1 answer:
adelina 88 [10]3 years ago
5 0
I think the answer is this
2x-4x+1=0
Combine like terms
-2x+1=0
Subtract 1 both sides
-2x=-1
Divide by -2 both sides
x=-1/2
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Natalie and her sister opened savings accounts at the same time. Natalie deposited $100 and will deposit $10 each month. Her sis
gregori [183]

Answer:

5

Step-by-step explanation:

Natalie

100 + 10x

Her sister

25 + 25x

Where

x = number of months

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100 + 10x < 25 + 25x

100 - 25 < 25x - 10x

75 < 15x

Divide both sides by 15

x < 75 / 15

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4 0
3 years ago
Line A passes through the points (-2, 27) and (1, -9). Line B passes through the points (-1, 15)
scZoUnD [109]

Answer:

Line A overlaps line B

Step-by-step explanation:

find gradient of both A and B and use it to find the equation of both lines

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3 years ago
Im having a brain fart moment rn. Does f(27) mean to replace the x with 27 or f(x) with 27
vovangra [49]

Answer:

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8 0
3 years ago
Read 2 more answers
Step 1: 4y − 2y − 4 = −1 + 13
d1i1m1o1n [39]
You didn't list the options
btw
the next step should be

(add 4 to both sides)
2y = 16
or
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8 0
3 years ago
Mhanifa can you please help? I will mark brainliest!
Rzqust [24]

Answer:

<u>Given function</u>

  • h(x) = 2x - 1

#15 Find the inverse of h(x)

<u>Substitute x with y and h(x) with x and solve for y:</u>

  • x = 2y - 1
  • 2y = x + 1
  • y = 1/2x + 1/2

<u>The inverse is:</u>

  • h⁻¹(x) = 1/2x + 1/2

#16 The graph with both lines is attached.

The x- and y-intercepts of both functions have reversed values.

#17 Table of the inverse function  will contain same numbers with swapped domain and range.

<u>Initial look is like this:</u>

  • <u>x        |  -3  |  -2  | -1  |  0  |    1  |  2  | 3</u>
  • h⁻¹(x)  |  -1   |       | 0   |      |    1  |      | 2

<u>The rest of the table is filled in by finding the values:</u>

  • <u>x        |  -3  |  -2    | -1  |  0   |  1  |  2   | 3</u>
  • h⁻¹(x)  |  -1   | -0.5 |  0  | 0.5 |  1  | 1.5 | 2

7 0
3 years ago
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