Multiply: 6.5 x 4.3

Mathematics

1 answer:

Ostrovityanka [42]2 years ago

5 0

The answer is 27.95

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1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?

pantera1 [17]

Answer: $x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

(Used a table of common angles)

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Mrac [35]

I believe it is the first one

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2 years ago

-6 is less than w, and w is less than 8

Mashutka [201]

Answer:

-6<w<8

Step-by-step explanation:

-6<w<8

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2 years ago

S = the team's score

Akimi4 [234]

Answer:

s would be the dependent variable, and g the independent.

Step-by-step explanation:

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3 years ago

How many 3/4 foot pieces can clark cut out from the 7 1/2 feet of wire

ivolga24 [154]

(7 1/2) / (3/4) =
(15/2) / (3/4) =
15/2 * 4/3 =
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