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matrenka [14]
3 years ago
8

Please help me im very confused

Mathematics
2 answers:
katrin [286]3 years ago
5 0

Answer:

6,-3

Step-by-step explanation:

stich3 [128]3 years ago
4 0

Answer:

(6,-3)

Step-by-step explanation:

I don't know how to explain it you got it right tho

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Pls help me not fail
nignag [31]

Answer:

D

Step-by-step explanation:

Using the Cosine rule to find AC

AC² = BC² + AB² - (2 × BC × AB × cosB )

      = 18² + 12² - ( 2 × 18 × 12 × cos75° )

      = 324 + 144 - 432cos75°

      = 468 - 111.8

      = 356.2 ( take the square root of both sides )

AC = \sqrt{356.2} ≈ 18.9

-----------------------------------------

Using the Sine rule to find ∠ A

\frac{18}{sinA} = \frac{18.9}{sin75} ( cross- multiply )

18.9 sinA = 18 sin75° ( divide both sides by 18.9 )

sinA = \frac{18sin75}{18.9} , then

∠ A = sin^{-1} ( \frac{18sin75}{18.9} ) ≈ 66.9°

4 0
3 years ago
Two investments totallng $47,500 produce an annual income of $3000. One investment ylelds 9% per year, while the other yields 6%
enot [183]

Answer:

The correct answer is "$5000".

Step-by-step explanation:

The given values are:

Two investments totaling,

= $47,500

Annual income,

= $3000

One investment yields per year,

= 9%

Other yield,

= 6%

Let,

  • The amount invested in 9% will be "x".
  • The amount invested in 6% will be "47,500-x".

Now,

⇒  0.09x+0.06(47,500-x)=3000

⇒        0.09x+2850-0.06x=3000

⇒                     0.03x+2850=3000

⇒                                0.03x=150

⇒                                       x=\frac{150}{0.03}

⇒                                       x=5000

5 0
2 years ago
You receive 9 text messages in 12 minutes. What is the rate of the text messages per hour?
MAXImum [283]
1 hour=60 minutes 12×5=60
9×5=45
About 45 messages per hr
8 0
3 years ago
Read 2 more answers
Which linear equation is represented by the table?<br><br> x −2 1 3 6<br> y 7 4 2 −1
n200080 [17]

Answer:

help calll me daddy

Step-by-step explanation:

8 0
2 years ago
18 increased by twice a number​
Charra [1.4K]

Answer:

I am pretty sure that the answer is 18+2n

4 0
3 years ago
Read 2 more answers
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