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Mrac [35]
2 years ago
7

HElp K 12 test! Will give brainiest PLS HELP!!!!

Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
8 0

Answer:

1. d  2. a  3. d  4. a  5. a

Step-by-step explanation:

For 1, d is negative because, if there an even number of negatives, the answer will be positive. a. would have been correct, but you multiply that one by 0. 0 is not negative, so the answer has to be d.

2. is -21. You can multiply 3 times seven then make it negative, or simply add -7 together 3 times.

3. is d because the two negatives cancel each other out. Even numbers of negatives cancel each other out. therefore, 17 times 6 is 102.

4. -120 is the answer because there are 3 negatives. That is an odd number, so we know our answer is negative. -5 times -3 is 15, and 15 times -8 is -120.

5. is a because -1 times 4 is -4, then -4 times -9 is 36. 36 times -3 is then -108.

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It’s a Basic Trigonometric Functions question for Pre-Cal, Need some help :/
lawyer [7]

Step-by-step explanation:

D is the 90° angle and d=15 is opposite of the angle of the same letter. The triangle's other corners are E and F, and the sides corresponding to those angles are opposite of them too.

Angle F = 35° and E= (90-35)°= 55°. Then you could use something like the Law of Sines to find the sides if you wanted as well.

5 0
3 years ago
Complete the number sentence <br> 342+453
Tasya [4]
795 is the answer to your problem
4 0
3 years ago
Read 2 more answers
Explain how you can find 4 x 754 using two different methods
Citrus2011 [14]

Solution: The value of 4\times 754  is 3,016.

Explanation:

The first method of multiplication is given below:

Multiply the ones digit by the multiplier and write the ones digit of the result in the bottom line and add the tens digit to the next resultant, and same happens with the next number multiplied. This method show in given figure.

The second method of multiplication is given below:

Write the digits as the addition of their place values and then multiply those place value by multiplier individually after that add the results.

4\times 754=4\times (700+50+4)\\4\times 754=4\times700+4\times50+4\times4\\4\times754=2800+200+16\\4\times754=3016

Therefore, the value of 4\times 754  is 3,016.

6 0
3 years ago
Read 2 more answers
Which represents the solution(s) of the equation x2 = 49?
Lady_Fox [76]

Answer: 7,-7

Step-by-step explanation: 7 squared is 7 times 7 which equals 49

-7 times -7 is also 49 bc the negatives cancel each other out

8 0
3 years ago
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Serafina had 30 stickers. She gave the same number of stickers to each of her 3 friends. Now she has 18 stickers left. How many
worty [1.4K]

Answer:

4 stickers were given to her three friends

Step-by-step explanation:

30 -18=12

12 sticker were distributed to safrina's 3 friends

so, 12÷3 =4

5 0
2 years ago
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