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Leni [432]
3 years ago
6

Can someone help me with this?

Mathematics
1 answer:
kaheart [24]3 years ago
3 0

Answer:

D. 63 degrees

Step-by-step explanation:

For the first answer

Cos B = 0.45  

tan60 = √3

= 60° = arctan √3

Cos B = 0.45

B = 63°

Thus B = arc cos 0.45 = 63°

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Kelsie sold digital cameras on her website . She bought the cameras for $65 each and includes a 60% markup to get the selling pr
ryzh [129]

Answer:

$104

Step-by-step explanation:

First, convert 60% to a decimal.

60% = 0.6

Now, multiply the cost to buy the camera ($65) by the decimal.

$65 × 0.6 = $39

Now, add this amount to the amount it cost to buy the camera.

$65 + $39 = $104

The selling price for the camera will be $104.

5 0
3 years ago
Perform the indicated operation. (36m 2 - 60m + 25) ÷ (6m - 5)
9966 [12]
The correct answer for this is 6m - 5
That is the final expression.
Mark brainliest :)

6 0
3 years ago
CAN SOMEONE FACTOR THIS PLEASE <br><br> 125х^6 - 81
alexandr402 [8]

Answer:

0

Step-by-step explanation:

125×^6_81=0

×^6 we do not support this expression

ans = 0

3 0
2 years ago
Which number is a common factor of 84 and 144?
schepotkina [342]
Your answer would be 12
6 0
3 years ago
Which is a factor of 144 − 49x2?<br><br> 12 - 7x2<br> 72 – 7x2<br> 12 – 7x<br> 72 + 7x
Vinil7 [7]

Answer:

(12-7x)

Step-by-step explanation:

144 − 49x²

by observation, we can see that 144 = 12² and 49 = 7²

hence we can rewrite the equation

144 − 49x²

= 12² - 7²x²

= 12² - (7x)²

recall that the expression x² - y² = (x+y)(x-y)

hence,

12² - (7x)²

= (12 + 7x)(12-7x)

(12-7x) appears in the expression above, hence 12 -7x is a factor

5 0
3 years ago
Read 2 more answers
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