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Alchen [17]
3 years ago
10

Solutions to ( x - 2 )² = -16​

Mathematics
2 answers:
drek231 [11]3 years ago
4 0

Answer: There are no real solutions

Alex_Xolod [135]3 years ago
3 0

Answer:

About -3.5

Step-by-step explanation:

x^2 - 2^2 = -16

x^2 - 4 = -16

x^2 = -12

x = the square root of -12

x is about - 3.5

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The picture shows the graphs of the functions expressed by a formula of the following type: y = kx + b.
Mademuasel [1]

Answer:

1. k=1,  b=1

2. k=-1, b=-0.5

Step-by-step explanation:

7 0
3 years ago
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a group 5 friends want to buy a flat screen tv for $ 210. the tax comes to $15. write and solve a multiplication equation to fin
Greeley [361]

Let x be the amount each friend pays .

There are five friends contributing ,so 5x will be the total money collected .

It needs to equal the price plus the tax, 210 + 15 = 225

So the equation becomes,

5x = 210 + 15

5x = 225

dividing right side by 5, we have

x = 225/5 = 45

Answer: So each frien pays $45.

7 0
3 years ago
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Help please with 9 and 10 please !
Lana71 [14]

Answer:

9. The scale factor is 1.5.

10. scale factor = 0.75

    the missing side is 9m

Step-by-step explanation:

9. 3/2 = 1.5

   9/6 = 1.5

   6/4 = 1.5

10. 12/16 = 0.75

    12*0.75 = 9

3 0
2 years ago
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If r = 4 and ^a8 = 100, what is the first term of the geometric<br> sequence?
telo118 [61]

The first term of the geometric  sequence is 0.0061

<u>Step-by-step explanation:</u>

The general form of geometric  sequence is a, ar, ar²,ar³,.......

where,

  • a is the first term of the sequence.
  • r is the common ratio. Here, the common ratio r = 4.
  • The 8th term of the sequence is 100. Hence n = 8.

<u>The formula to find the nth term of the geometric sequence is given by :</u>

⇒ n_{th} term = ar^{n-1}

⇒ 8_{th}term  = a\times4^{8-1}

⇒ 100 = a \times 4^{7}

⇒ 100 = a \times 16384

⇒ a = \frac{100}{16384}

⇒ a = 0.0061

Therefore, the first term of the geometric  sequence is 0.0061

6 0
3 years ago
Solve for x in the equation x squared + 11 x + StartFraction 121 Over 4 EndFraction = StartFraction 125 Over 4 EndFraction.
telo118 [61]

Answer:

x = -13 or 2

Step-by-step explanation:

x² + 11x + ¹²¹/₄ = ¹²⁵/₄

(x + ¹¹/₂)² = ¹²⁵/₄

x + ¹¹/₂ = ±¹⁵/₂

x = -¹¹/₂ ± ¹⁵/₂

x = -13 or 2

8 0
3 years ago
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