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Alecsey [184]
3 years ago
10

Help pls i’ll mark as brainliest if correct

Mathematics
1 answer:
dexar [7]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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In Cos A = 0.4 Find The Value Of Cos 3 A.<br><br><br><br>Thenku ☃️<img src="https://tex.z-dn.net/?f=%20%5C%3A%20%5C%3A%20" id="T
s2008m [1.1K]
Answer:
- 0.944

Step-by-step explanation:
We know that,
cos 3A = 4 cos³A - 3 cos A (formula)

So,
If cos A = 0.4,

cos 3A = 4 cos³A - 3 cos A
cos 3A = 4 × (0.4)³ - 3 × (0.4)
cos 3A = 4 × 0.064 - 1.2
cos 3A = - 0.944


Hope it helps ⚜




3 0
3 years ago
Read 2 more answers
Ashad is rewriting the expression 28 a + 36 a b as a product. Which statements about the expression are accurate and relevant to
Gala2k [10]

Answer:

(B)The GCF of the numbers(28 and 36) in each term in the expression is 4.

(C)The GCF of the variables(a and ab) in each term in the expression is a.

(E)The factored form of the expression is 4a(7+9b)

Step-by-step explanation:

Given the expression: 28a+36ab

If we write it as a product, we obtain:

28a+36ab=4a(7+9b)

We can see the following

  • The GCF of the numbers(28 and 36) in each term in the expression is 4.
  • The GCF of the variables(a and ab) in each term in the expression is a.
  • The factored form of the expression is 4a(7+9b)

The correct options are B, C, and E.

8 0
3 years ago
Click on all that are true about the graph of y &gt; x^2 + 4x + 4.
vladimir1956 [14]
the answer is a,b,d
5 0
3 years ago
Read 2 more answers
Solve.<br><br> Log8 (6x) = Log8 2 + Log8 (x-4)
Romashka-Z-Leto [24]

Write both sides as powers of 8, then simplify:

8^{\log_86x}=8^{\log_82+\log_8(x-4)}=8^{\log_82}8^{\log_8(x-4)}

\implies6x=2(x-4)

\implies6x=2x-8

\implies4x=-8

\implies x=-2

However, on the left hand side, this would mean we'd have, \log_8-12, which is undefined (assuming the real-valued logarithm), so this equation has no real solution.

7 0
3 years ago
Hell which one is true
nalin [4]

Answer:

sjshdsedhbehbeh i dont know

Step-by-step explanation:

5 0
3 years ago
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