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3 years ago

Solve the following equation: 3x2 = -12 a. I = 2 b. r=-2 c. No solution d. I= +2

Mathematics

2 answers:

ella [17]3 years ago

4 0

Your is is no solution

Delicious77 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

Given

3x² = - 12 ( divide both sides by 3 )

x² = - 4 ( take the square root of both sides )

x = ± $\sqrt{-4}$ ← has no real solutions → c

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Find the perimeter of the quadrilateral.

levacccp [35]

Question:

Find the perimeter of the quadrilateral. if x = 2 the perimeter is ___ inched.

The complete figure of this question is attached below

Answer:

<h3>The perimeter of the quadrilateral is 129 inches</h3>

Solution:

The complete figure of this question is attached below

Given that, a quadrilateral with,

Side lengths are:

$4x^2 + 8x\ inches \\\\3x^2-5x+20\ inches \\\\7x + 30\ inches \\\\31\ inches$

The values of the side lengths when x = 2 are

$(4x^2+8x)=(4\times 2^2+8\times 2)=(4\times 4+16)=16+16=32\ inch\\\\(3x^2-5x+20)=(3\times 2^2-5\times 2+20)=(3\times 4-10+20)=12+10=22\ inch\\\\(7x+30)=(7\times 2+30)=14+30=44\ inch$

Perimeter of a quadrilateral = Sum of its sides

Perimeter of given quadrilateral = 32 + 22 + 44 + 31 = 129 inches

Thus perimeter of the quadrilateral is 129 inches

5 0

3 years ago

Tyler's height is 57 inches. What could be his height in centimeters? Explain your resoning. Nost: 1 inch=2.54 centimeters

AfilCa [17]

Answer:

Tyler's height in centimeters is, 144.78 centimeters.

Step-by-step explanation:

Given the statement: Tyler's height is 57 inches.

To find his height in centimeters.

Using the conversion:

$1 {\tex}inch = 2.54 {\tex}centimeters$

Proportion states that the two ratios or fraction are equal.

Using proportion method:

$\frac{1}{57} = \frac{2.54}{x}$

By cross multiply, we get

$x = 57 \times 2.54 = 144.78$ centimeters.

therefore, his height in centimeter is, 144.78 inches.

4 0

3 years ago

A total of $ will have been paid into the account over 18 years and after the 18 years, the account will have a balance of $

Lelechka [254]

Answer:

you miss the put the initial quote

Step-by-step explanation:

5 0

4 years ago

What do you add or subtract if you’re trying to find the coterminal angles in degrees? Do you add and subtract 2pi the same and

r-ruslan [8.4K]

Instead of adding or subtracting 2pi (that's for radians only), just add or subtract 360 degrees to your angle.

(Please mark this answer as Brainliest and leave a Thanks if I helped you!)

7 0

4 years ago

I NEED HELP it's due today! Giving out BRAINLIEST & 30 POINTS!

liraira [26]

Answer:

see below

Step-by-step explanation: 5 20 21 02

There are 5 areas to calculate

Top = LW = (20)(17)

Bottom = LW = (20)(15)

Back = LW = (20)(8)

2 Triangular Ends = One square = LW = (8)(15)

Total Surface Area = (20)(17) + (20)(15) + (20)(8) + (8)(15)

= (20)(17 + 15 + 8) + (8)(15)

= (20)(40) + (8)(15)

= 800 + 120

= 920 ft²

4 0

3 years ago