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makkiz [27]
3 years ago
8

Trig help ...............

Mathematics
2 answers:
Flauer [41]3 years ago
4 0
Letter D

A = 135°
B = 30°

cosAcosB - sinAsinB = cos(A+B)

cos(135°+30°)
cos(165°)
masya89 [10]3 years ago
4 0

Answer: D

Step-by-step explanation:

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Eleven members of the Middle School Math Club each paid the same amount for a guest speaker to talk about problem solving at the
tiny-mole [99]
The missing digit is number 3. The total amount should be $132

I multiplied 11 by the numbers 10 and above to get the possible three digit answer who has 1 as the first digit and 2 as the last digit.

11 x 10 = 110
11 x 11 = 121
11 x 12 = 132

The 11 members of the Middle School Math club each paid $12 for a guest speaker.
7 0
3 years ago
What is the greatest common factor of the terms in the polynomial
ruslelena [56]

Answer:

4x^2

Step-by-step explanation:

The greatest common factor is the greatest number that can divide the terms. The greatest number that can divide each term is 4, and the greatest power of x that can divide each term is x^2. This is because it can't be any number greater than 4 since that number would never be able to divide into 4. This is also the reason why x^2 is the greatest power possible. It cannot be greater than anything divisible by itself. Thus, you multiply 4 by x^2 and the answer is 4x^2.

7 0
3 years ago
What is temperature of hot chocolate in degrees celsius?
olga55 [171]
Assuming it's boiling, the temperature will be 100°C, since water based materials can not exceed that without becoming a gas.
7 0
3 years ago
The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now?
Lubov Fominskaja [6]

Answer:

Age= 15

Step-by-step explanation:

Let a be for age at the moment

(a-3)^2 =6(a+9)

a^2-6a+9=6a+54

a^2-12a-45

(a-15)(a+3)

a=15 or a=-3

Age cannot be negative (-)

Therefore

Age =15

3 0
4 years ago
Read 2 more answers
Can anyone help me please? NO BOTS!!!
svp [43]

7. subtraction property

division property

8. subtraction property

multiplication property

9. distribution property

addition property

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10. distribution property

combine like terms

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subtraction property

subtraction property

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3 0
3 years ago
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