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3 years ago

What is 3 - 4 - (-4)

Mathematics

2 answers:

Andreas93 [3]3 years ago

7 0

Answe

-5

Step-by-step explanation:

4-(4)=4+4

4+4=8

3-8=-5

valentina_108 [34]3 years ago

6 0

Answer: 3

Step-by-step explanation: Minus a Negative is Plus a positive. This turns the problem into 3-4+4

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ABC is reflected across x = 1 and y = -3. What are the coordinates of the reflection image of B after both reflections?A. (-7, -

Dima020 [189]

Answer:

The correct option is C.

Step-by-step explanation:

From the given figure it is noticed that the coordinates of B are (-5,-7).

If ABC is reflected across x = 1, then

$(x,y)\rightarrow(1-(x-1),y)$

$(x,y)\rightarrow(2-x,y)$

$(-5,-7)\rightarrow(2+5,-7)$

$(-5,-7)\rightarrow(7,-7)$

If ABC is reflected across y =-3.

$(x,y)\rightarrow(x,-3-(y-(-3)))$

$(x,y)\rightarrow(x,-6-y)$

$(7,-7)\rightarrow(7,-6-(-7))$

$(7,-7)\rightarrow(7,1)$

Therefore option C is correct.

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3 years ago

Simplify. 8 · 3 · x 13x 24x 22x 48x

Elina [12.6K]

$8\cdot3\cdot x=(8\cdot3)x=24x$

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3 years ago

If y varies directly with x. and y=10 when x=5.6, find the value of y when X=3

Nady [450]

Answer: 5.3571

Step-by-step explanation:

The formula used to calculate direct proportion is: y = kx

We will find the constant of proportionality when y=10 and x=5.6. This will be:

y = kx

10 = 5.6k

k = 10/5.6

k = 1.7857143

The value of y when X=3 will be:

y = kx

y = 1.7857143 × 3

y = 5.3571

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