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just olya [345]
3 years ago
5

Pls help (pic above)

Mathematics
2 answers:
wel3 years ago
4 0

Answer:

(7 + 5) + 1 = 12 + 1 = 13 \\ 7 + (5 + 1) = 7 + 6 = 13 \\ here \: we \: use \: assosiative \: \: property \\  of \: addition\\ option (b) \\ \: thank \: you

makvit [3.9K]3 years ago
3 0

Answer:

(7+5)+1 equals 12+1 which equals 13 7+(5+1) equals7+6 which equals to 13

Step-by-step explanation:

b: associative property of addition

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A force vector M points 3 N in the x-direction and 4 N in the y-direction. What is Vector M’s magnitude?
julsineya [31]

Answer:

5 N.

Step-by-step explanation:

Given that,

A force vector M points 3 N in the x-direction and 4 N in the y-direction.

We need to find the magnitude of vector M. The magnitude of the vector when they are perpendicular to each other is given by :

M=\sqrt{3^2+4^2} \\\\M=5\ N

So, the required magnitude of M is 5 N.

8 0
3 years ago
A. x ll y<br> b. y ll z <br> c. a ll b <br> d. x perpendicular to b
quester [9]

Answer:

Option B

Step-by-step explanation:

By applying the converse theorem of corresponding angles,

"If corresponding angles formed between two parallel lines and the transversal line are equal then both the lines will be parallel"

Angle between line B and Y = 90°

Angle between line B and Z = 90°

Therefore, corresponding angles are equal.

By applying converse theorem, line Y and line Z will be parallel.

Option B will be the answer.

5 0
3 years ago
5. Let f(x) = 3x3/4 and g(x) = -2x314 Find (f + g)(x). Please show work.​
pishuonlain [190]

Answer:

I don't have a clue

Step-by-step explanation:

3 0
3 years ago
When a number is decreased by 3% the result is 80. what was the original number?
Aleksandr [31]

Answer:

82.47

Step-by-step explanation:

.93n = 80

n = 80/.93

n = 82.47

6 0
3 years ago
Factor the gcf out of the polynomial 9x^6+6x^4+15x^3
san4es73 [151]

Answer:3x^3(3x^3+2x+5)


Step-by-step explanation:by looking at the polynomial, you can see that all three shares the variable x. Since 9,6, and 25 all share the GCF of 3, you can factor it out. Since the smallest x value of the polynomial is x^3, that is the x value you want to factor out. Since if you factor out x^3 then 15x^3 would not have a variable anymore.


4 0
4 years ago
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