MATHEMATICS MIDDLE SCHOOL

Which expression is a factor of 3ab-6a+4b-8

Answers

Answer 1
Answer:

the possible factors are (b-2) and (3a+4) but out of the possible following choice tho the answer would be (3a+4)
Answer 2
Answer:

Final answer:

The expression 2a - 4 is a factor of 3ab - 6a + 4b - 8.

Explanation:

The expression 2a - 4 is a factor of 3ab - 6a + 4b - 8.

To check if an expression is a factor, we can substitute the values of a and b into the expression and see if it simplifies to zero. When we substitute a = 1 and b = 2 into 2a - 4, we get 2(1) - 4 = 2 - 4 = -2. And when we substitute these values into 3ab - 6a + 4b - 8, we get 3(1)(2) - 6(1) + 4(2) - 8 = 6 - 6 + 8 - 8 = 0. Since the expression evaluates to zero, it is a factor of the given expression.

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What property can you use to find 20x9x5

Answers

the answer is in the file below
u should use the commutive property 
because 
if you do 
20*5 you get 100 then multiply 9 and you get 900 

(-18)-(4) please help thank you

Answers

Answer:

-22

Step-by-step explanation:

18 + 4 = 22

then just add the negative to 22

-22

Answer:

-22

Step-by-step explanation:

-18 - 4 = 22

What is the surface area of the square pyramid? Use the net of the pyramid to find the surface area.A.
219.8 mm2

B.
341.6 mm2

C.
170.8 mm2

D.
390.6 mm2

Answers

Using the net, we see that the square pyramid breaks down to 4 equivalent triangles and a square. We can use this formula to solve for the surface area:

Sa=A(square)+4*A(triangle)

The formula for the area of a square is

A=l*w
A=7*7
A=49mm²

The formula for the area of a triangle is:

A=1/2b*h
A=1/2*7*12.2
A=42.7mm²

Now that we have the individual areas of the shapes, we can solve for the surface area.

Sa=A(square)+4*A(triangle)
Sa=49mm²+4*42.7mm²
Sa=49mm²+170.8mm²
Sa=219.8mm²

Answer=219.8mm²
ANSWER=A

11. Pam's patio IS shown below V What are me perimeter and area of the patio 1 . r Could a square with whole number side lengths have the same perimeter as the patio The same area Explain (14-8)

Answers

the perimeter is 22.
the area of a whole number side is no.
the perimeter of a whole number is no.

Help??? What is 3x+5x=67y?

Answers

All you have to do is combine 3x and 5x to = 8x. You can't combine 8x and 67y because they have different variables. so it's 8x+67y. 
3x + 5x = 67y
8x = 67y
this will be the final answer you can't divide with those two numbers because they don't have the same verbal.

i hope it helps.

1.825 rounded to the nearest hundredth

Answers

the answer is 1.83
you look to the number after the hundreds place which is 5. the rule is that is that place is 5 or more then you can round up with the hundreds place which turned the 2 into a 3
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