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Lunna [17]
3 years ago
13

9. Which of these is equal to {2 - 31}{21 +4}?

Mathematics
1 answer:
densk [106]3 years ago
5 0

Answer:

-725

Step-by-step explanation:

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Trigonometric Identity help​
vovikov84 [41]

Answer:

sin\pi/4 * sin\pi/6 = 1/2 *(cos \pi/12 - cos 5\pi/12)

Step-by-step explanation:

Formula:- sinX sinY = (1/2) [ cos (X - Y) - cos (X + Y) ]

sin(π/4)sin(π/6)

= (1/2)[cos(π/4 - π/6) - cos(π/4 + π/6)]

= (1/2)[cos(3π/12 - 2π/12) - cos(3π/12 + 2π/12)]

= (1/2)[cos(π/12) - cos(5π/12)]

7 0
3 years ago
What is the converse of the statement?<br> "If x - 2 = 5, then x = 7"
dlinn [17]

ANSWER

"If x=7, then x - 2 = 5"

EXPLANATION

Let

p \to \: q

be a propositional statement.

The converse of this statement is

q \to \: p

In other words, the converse of the statement,

"If p then q" is "If q, then p"

The given given conditional statement is

"If x - 2 = 5, then x = 7"

Therefore the converse is

"If x=7, then x - 2 = 5"

3 0
3 years ago
Which is the area of a parallelogram with a base of 13 centimeters and a height of 3 centimeters?
GREYUIT [131]
He ANWSER I got would be c idk if this is right or not I honk it might be
4 0
3 years ago
R=10(a+b) solve for b?
IrinaVladis [17]

Answer:

b=r/10 -a

Step-by-step explanation:

7 0
3 years ago
Complete the solution of the equation. Find the value of y when x equals 4. -7x + y = -22
xz_007 [3.2K]

-7x + y = -22

-7*4 + y = -22

y = -22 + 28

y = 6

4 0
3 years ago
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