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hodyreva [135]
3 years ago
5

Solve for x. Simplify completely. x^2-9=55

Mathematics
2 answers:
djverab [1.8K]3 years ago
8 0
★ Exponential reduction ★

x {}^{2}   - 9 = 55 \\ x {}^{2}  = 55 + 9 = 64 \\ x {}^{2}  = 64 = ( + 8) {}^{2}  \\ x =  + 8 \\
we didn't considered -8 because square root of any real number is always positive , or it's yours choice to deal with minus 8 also :)

★✩★✩★✩★✩★✩★✩★✩★✩★✩★✩★
Irina-Kira [14]3 years ago
3 0

Answer:

x= 8 x= -8

Step-by-step explanation:

took the test

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given directed line segment CD, if point E divides CD three-fourths of the way from C to D, find the coordinates of E then plot
Solnce55 [7]

The coordinates of point E is (-2, -1.5)

<h3>How to determine the coordinates of point E?</h3>

The complete question is added as an attachment

The given parameters are

C = (1, 6)

D = (-3, -4)

The ratio 3/4 can be represented as:

m : n = 3 : 1

So, the coordinate of point E is

E = 1/(m + n) * (mx2 + nx1, my2 + ny1)

So, we have:

E = 1/(3 + 1) * (3 * -3 + 1 * 1, 3 * -4 + 1 * 6)

Evaluate

E = 1/(4) * (-8, -6)

This gives

E = (-2, -1.5)

Hence, the coordinates of point E is (-2, -1.5)

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2 years ago
Greece has 12 sweets and she eat quarter of them.How many sweet She has left ?
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Step-by-step explanation:

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2 years ago
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. Ashton was asked to write an equation in the form y = mx + b for the line shown in the graph below. ATT 4 He wrote the equatio
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Step-by-step explanation:

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3 years ago
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julsineya [31]

Answer:

d:) 1024

Step-by-step explanation:

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| | 6 | 4

× | | 1 | 6

| 3 | 8 | 4

| 6 | 4 | 0

1 | 0 | 2 | 4:

Answer:  1024

8 0
3 years ago
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