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dimaraw [331]
3 years ago
13

Please help me I will give you extra points and whoever the first one to answer I mark you with the brain thing. 10

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer: A

Step-by-step explanation:  

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Which is bigger 52L or 5200mL
mel-nik [20]
52L, because there are 1000 mL in one L, so 52L is equal to 52000mL. clearly, 52000mL is greater than 5200mL.
5 0
3 years ago
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Determine the intercepts of the line
irga5000 [103]

Answer:

x-intercept: -1/7

y-intercept: 1/4

Step-by-step explanation:

change equation into standard form:  7x - 4y = -1

set 'x' to zero and solve for y:  0 - 4y = -1

                                                        y = 1/4

set 'y' to zero and solve for x:  7x - 0 = -1

                                                        x = -1/7

5 0
3 years ago
Which matrix Is the product of a 3x3 identity matrix and the scalar 3
maw [93]

Answer:

  Each diagonal element will be 3. Off-diagonal elements will be zero.

Step-by-step explanation:

The one that looks like ...

  \left[\begin{array}{ccc}3&0&0\\0&3&0\\0&0&3\end{array}\right]

8 0
4 years ago
60+42.95x=25+49.95x please help
hoa [83]

Answer:

x=5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Evaluate : <br> \(\cos 12 \cos 24 \cos 36 \cos 48 \cos 72 \cos 84\)
NeTakaya
The answer in itself is 1/128 and here is the procedure to prove it:
cos(A)*cos(60+A)*cos(60-A) = cos(A)*(cos²60 - sin²A) 

<span>= cos(A)*{(1/4) - 1 + cos²A} = cos(A)*(cos²A - 3/4) </span>

<span>= (1/4){4cos^3(A) - 3cos(A)} = (1/4)*cos(3A) </span>

Now we group applying what we see above

<span>cos(12)*cos(48)*cos(72) = </span>
<span>=cos(12)*cos(60-12)*cos(60+12) = (1/4)cos(36) </span>

<span>Similarly, cos(24)*cos(36)*cos(84) = (1/4)cos(72) </span>

<span>Now the given expression is: </span>

<span>= (1/4)cos(36)*(1/4)*cos(72)*cos(60) = </span>

<span>= (1/16)*(1/2)*{(√5 + 1)/4}*{(√5 - 1)/4} [cos(60) = 1/2; </span>
<span>cos(36) = (√5 + 1)/4 and cos(72) = cos(90-18) = </span>
<span>= sin(18) = (√5 - 1)/4] </span>
<span>And we seimplify it and it goes: (1/512)*(5-1) = 1/128</span>
4 0
4 years ago
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