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neonofarm [45]
3 years ago
15

I need the big brain help and maybe mark brainliest:)

Mathematics
2 answers:
Over [174]3 years ago
4 0
The last 2 are correct
olga_2 [115]3 years ago
3 0

Answer:

the last two

Step-by-step explanation:

1 is less than 3

and any negative is less than a positive

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Which expression is equivalent to x−2y ?
Tresset [83]

Answer:

-2y+x

Step-by-step explanation:

x-2y

-2y+x

3 0
3 years ago
Read 2 more answers
What is the sum of 8a<br> 7+ 5b2 – 2a2 and 7b2 + 66_<br> 20a + 3?
barxatty [35]

Answer:

Step-by-step explanation:

7+5b²-2a²+7b²+66-20a-3

first collect like terms

5b²+7b²-2a²-20a+7-3

12b²-2a²-20a+4

hope it's helpful

THANK YOU.

5 0
3 years ago
HEE 1 15. Mary decides to take out a $4,000 student loan this year. If she will pay 10% interest compounded annually, how much w
german
Answer: 5,600

Explanation: By multiplying 0.10 (4,000) to find the interest for one year, you get 400. Because she is using this loan for 4 years you multiply that one year interest by 4. 400 times 4 is 1600. Then, you add that 1600 (which is the total interest for 4 years) to the loan, to get an answer of 5,600.
7 0
2 years ago
Given that cos(30°) = cos(45°)cos(15°) + sin(45°)sin(15°), it follows that cos(30°) =
mario62 [17]

Answer:

cos(30\°) = cos(45\°-15\°)

Step-by-step explanation:

To solve this problem you must know the formula of subtraction of angles for the function cosx.

The formula is:

cos(h-d) = cos(h)cos(d) + sin(h)sin(d)

We can write 30° as: 45° - 15°

Then:

cos(30\°) = cos(45\°-15\°)

Using the formula for subtraction of angles we have:

cos(45\°-15\°) = cos(45\°)cos(15\°) + sin(45\°)sin(15\°)

Notice that we have achieved the expression shown in the statement

Finally:

cos(30\°) = cos(45\°-15\°)

8 0
3 years ago
Read 2 more answers
2nd grade question will give brainlest if correct.
bogdanovich [222]

Answer:

dam

mmnnnn that aint 2nd grade

Step-by-step explanation:

6 0
3 years ago
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