-3+4=1 and 1 -5= -4, -4+6=2 AND 2-7=-5 Answer =-5
The value of x is 21√2/2
The correct option is (A)
<h3>What is Trigonometry?</h3>
Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.
In triangle having angle 60.
sin 60 = P/ 7√3
√3/2= P/7√3
2P= 21
P= 21/2
Now again
cos 45= 21/2/x
1/√2 = 10.5/x
x= 21√2/2
Learn more about trigonometry here:
brainly.com/question/26719838
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Answer:
Part A = D
Part B = 5 and 50
Step-by-step explanation:
Part A:
area = 5*4x = 20x
so, 
Part B:
to leave it only by x, you divide both sides by 20
100/20 = 5, 1000/20 = 50
which 
Answer and Step-by-step explanation:
<u>To solve for d, divide f from both sides of the equation.</u>
df ÷ f = (g + 32) ÷ f
<u>d = </u>
<u> is the answer.</u>
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<em><u>#teamtrees PAW (Plant And Water)</u></em>
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<u>I hope this helps!</u>