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nordsb [41]
3 years ago
6

Express as a product:

sin^2\alpha" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Basile [38]3 years ago
3 0

Answer:

(1 - 2sinα)(1 + 2sinα)

Step-by-step explanation:

1 - 4sin²α ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

1 - 4sin²α

= 1² - (2sinα )²

= (1 - 2sinα)(1 + 2sinα)

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Solve the inequality. 6y+5>8
Dovator [93]
6y > 8 - 5
6y > 3
y > 3/6
y > 1/2
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3 years ago
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 The area of a circle is less than 1 dm². Find the radius of the circle. The area of a circle is less than 1 dm². Find the rad
Ipatiy [6.2K]
\bf \textit{area of a circle}\\\\
A=\pi r^2\qquad 
\begin{cases}
\textit{let's say the Area is 1 exactly}\\
A=1
\end{cases}\implies 1=\pi r^2
\\\\\\
\cfrac{1}{\sqrt{\pi }}=r

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5 0
3 years ago
A bag contains five red marbles and three green marbles.
Tatiana [17]
1.3/8 because there is a total of 8 marbles but only 3 of them are green.
2. A 52 deck of cards has 4 or each card not including the Jokers so it would be 4/52.
3.30 red 90 total 30/20
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5. 4 of each card 2 red 2 black 2 red jacks 52 cards 2/52.
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8.2 pairs of blue socks 10 total pairs 2/10 or 1/5
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7 0
3 years ago
At a wedding reception an equal number of guests were seated at each of three large tables, and 7 late arriving desks were seate
nikitadnepr [17]

Answer:

10 guests a table

Step-by-step explanation:

3 tables

7 late arrivals

37 total people

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8 0
3 years ago
HELPPO ME PLEASEE!!!!!!
ElenaW [278]

Answer:

Here,

x + 25° + 3x + 95° + 80°=360° (Sum of angles of a quadrilateral is 360°)

or,x+3x + 25° + 95° + 80° =360°

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or,4x = 360 - 200

or,4x = 160

or,x = 160÷4

or,x = 40

Now,

Angle K = (x + 25)° = 40 + 25° = 65°

Angle L = 3x° = 3 × 40° = 120°

4 0
3 years ago
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