3 years ago

Answer ASAP please! …

Mathematics

1 answer:

Gekata [30.6K]3 years ago

8 0

Answer:

"A" seems to be incorrect....

Step-by-step explanation:

"A" seems to be incorrect....

$\frac{\left(\sin \left(60^{\circ \:}\right)\cdot \:300\right)}{\sin \left(90^{\circ \:}\right)}=150\sqrt{3}\quad \begin{pmatrix}\mathrm{Decimal:}&259.80762\dots \end{pmatrix}$

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NISA [10]

For this case we must find the solution of the following quadratic equation:

$x ^ 2 + 5x + 7 = 0$

Where:

$a = 1\\b = 5\\c = 7$

Then, the solution is given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Substituting the values:

$x = \frac {-5 \pm \sqrt {5 ^ 2-4 (1) (7)}} {2 (1)}\\x = \frac {-5 \pm \sqrt {25-28}} {2}\\x = \frac {-5 \pm \sqrt {-3}} {2}$

By definition we have: $i ^ 2 = -1$

$x = \frac {-5 \pm \sqrt {3i ^ 2}} {2}\\x = \frac {-5 \pm i \sqrt {3}} {2}$

Thus, we have two complex roots.

Answer:

The equation has no real roots.

4 0

4 years ago

Help!!! (Tell me if you can’t see it clearly)

meriva

I believe it’s option c!

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3 years ago

if your bag of M&M’s has 8 yellow out of 24 , how many of them will be yellow i’d the bag has a total of 96?

Lera25 [3.4K]

Answer: 32

Step-by-step explanation:

96 divided by 24 is 4

8x4=32

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3 years ago

Andrew was making a science project for school. He worked for 6.6 hours the first week, 2.75 hours the second week, and 4.4 hour

fiasKO [112]

Answer:

Step-by-step explanation:

its wierd but 2.22

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3 years ago

Stacy is driving at a speed of 48 miles per hour. How many feet is she travelling per minute?

Nonamiya [84]

48(miles/hour)*(1 mi/5280 ft)(1 hour/60 min)
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