3 years ago

PLEASE HELP IM TIMEZ) What is the value of the arithmetic series below? A. B. C. D.

Mathematics

1 answer:

Aleks04 [339]3 years ago

3 0

Answer:

id say its C but I'm not sure

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Virty [35]

Answer:

D: 11

Step-by-step explanation:

When I evaluated the expression, I got 11.

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2 years ago

Which equation can be used to find the area of the blue triangle?

tamaranim1 [39]

Use the equation A=(1/2)bh

Replace b with 7
Replace h with 12

A=(1/2)(7)(12)
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3 years ago

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FrozenT [24]

Answer:

im fairly certain the answer is C

Step-by-step explanation:

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3 years ago

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myrzilka [38]

Answer:

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3 years ago

Solve the quadratic equation by using a numeric approach. x squared + 1.1 x minus 2 = 0 a. x = 1.7 and x = -29.2 c. x = 2.3 and

Korolek [52]

Answer:

None of the options are correct, the correct answers are: x = 0.967 and -2.067

Step-by-step explanation:

$x^2 + 1.1x - 2 = 0$

Comparing this equation with $ax^2 + bx + c = 0$

a = 1, b = 1.1, c = -2

Using the almighty formula for solving quadratic equation:

$x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a} \\x = \frac{-1.1 \pm \sqrt{1.1^2 - 4(1)(-2)} }{2(1)} \\x = \frac{-1.1 \pm \sqrt{1.1^2 - 4(1)(-2)} }{2(1)} \\x = \frac{-1.1 \pm 3.035 }{2}\\x_1 = \frac{-1.1 + 3.035 }{2} = 0.967\\x_2 = -\frac{-1.1 - 3.035 }{2} = -2.067$

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3 years ago