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Solnce55 [7]
3 years ago
12

Really need help with 7) and 8) PLEASE HELP!!! (30 points)

Mathematics
1 answer:
DiKsa [7]3 years ago
4 0

Answer:

Apply trigonometric function for triangle ABC:

7.

sin A = BC/BA = 6/7.2 = 0.83

A = arcsin(0.83) = 56.44

8.

tan B = AC/BC = 4/6 = 0.67

B = arctan(0.67) = 33.69 deg

Hope this helps!

:)

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a sequence has a first term of 2 and a constant ratio of _3/2 what are the first five terms of the sequence
soldi70 [24.7K]
This is a geometric sequence with a=2, r= -3/2.
Therefore,
a₁ = 2
a₂ = 2*(-3/2) = -3
a₃ = 2*(-3/2)² = 9/2 = 4.5
a₄ = 2(-3/2)³ = -27/4 = -6.75
a₅ = 2(-3/2)⁴ = 81/8 = 10.125

Answer:
In fractions, the first five terms are
     2, -3, 9/2, -27/4, 81/8
In decimals, the first five terms are
     2.000, -3.000, 4.500, -6.750, 10.125


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3 years ago
Which equation shows a greater rate?<br>y=x + 2<br>y=3x - 2<br>y=4x + 1<br>y=2x - 1​
Alex73 [517]

Answer:

im gonna have to say C

Step-by-step explanation:

6 0
3 years ago
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than ex
quester [9]

Answer:1866

Step-by-step explanation:

Given

n=200

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