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Dmitry [639]
4 years ago
7

Theo started to solve the quadratic equation (x + 2)2 - 9 = -5. He added 9 to both sides and the resulting equation was

Mathematics
2 answers:
UkoKoshka [18]4 years ago
5 0

Answer:

x + 2 = \pm \sqrt{4}

Step-by-step explanation:

(x + 2)^2 - 9 = -5

Add 9 to both sides.

(x + 2)^2 = 4

Take the square root of both sides.

x + 2 = \pm \sqrt{4}

KengaRu [80]4 years ago
3 0

Answer:

A

Step-by-step explanation:

ed 2020

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Margaret [11]

Answer:

5.4 numbers of purple beads and 12.6 numbers of silver beads.

Step-by-step explanation:

Arlene makes a necklace using 14 purple beads for every 6 silver beads. So, she uses purple and silver beads in the ratio 14 : 6 = 7 : 3.

Now, the necklace contains 18 beads, then in the ratio 7 : 3, there will be (18 \times \frac{3}{3 + 7}) = 5.4 numbers of purple beads and (18 - 5.4) = 12.6 numbers of silver beads. (Answer)

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3 years ago
What is the value of x in x = inverse of sine (negative one-half)?
Ede4ka [16]

Answer:

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Step-by-step explanation:

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3 years ago
Find the area of a square with a side of 20 cm
Bezzdna [24]

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Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Work out 3/5 - 1/3<br> In its simplest form <br><br> Work out 2/5 x 5/6 <br> In its simplest form
LenKa [72]

3 \div 5 - 1 \div 3 =  9 - 5 \div 15 \\  = 4 \div 15 \\  \\ 2 \div 5 \times 5 \div 6 = 2 \div 6

Hope it helps

6 0
3 years ago
The length of a rectangle is 14 meters. If the perimeter of the rectangle is 44 meters, what is the width
Mandarinka [93]
2(14)+2x=44
28+2x=44
2x=44-28
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The width is 8 meters.
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3 years ago
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