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aliina [53]
3 years ago
11

Factorise a squared - b squared

Mathematics
1 answer:
marusya05 [52]3 years ago
5 0
(a-b)(a+b) because when you reverse the sum you do axa and ax-b xx
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Carlos had48 brownies. He ate 3 brownies and then gave 2 brownies to each of his 16 friends. How many brownies does Carlos have
Artist 52 [7]

Answer:

carlos will have one brownie left over.

Step-by-step explanation:

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4 0
3 years ago
What is the answer for this problem cause i am very confused
EleoNora [17]

41.8, angle y and the measurement angle labeled as just "138.2" are supplementary angles, meaning that when you add them together they equal 180. So all you have to do is subtract 138.2 from 180 and you get your answer which is 41.8.

4 0
3 years ago
Someone do this got me rq
skelet666 [1.2K]

Answer:

The last listed functional expression:

\left \{ {x+1\,\,\,\,{x\geq 2} \atop {x+2 \,\,\,\,x

Step-by-step explanation:

It is important to notice that the two linear expressions that render such graph are parallel lines (same slope), and that the one valid for the left part of the domain, crosses the y-axis at the point (0,2), that is y = 2 when x = 0. On the other hand, if you prolong the line that describes the right hand side of the domain, that line will cross the y axis at a lower position than the previous one (0,1), that is y=1 when x = 0. This info gives us what the y-intercepts of the equations should be (the constant number that adds to the term in x in the equations: in the left section of the graph, the equation should have "x+2", while for the right section of the graph, the equation should have x+1.

It is also important to understand that the "solid" dot that is located in the region where the domain changes, (x=2) belongs to the domain on the right hand side of the graph, So, we are looking for a function definition that contains x+1 for the function, for the domain: x\geq 2.

Such definition is the one given last (bottom right) in your answer options.

\left \{ {x+1\,\,\,\,{x\geq 2} \atop {x+2 \,\,\,\,x

7 0
3 years ago
(3x - 2) + (5x + 7)​
deff fn [24]

Answer:

8x+5

Step-by-step explanation:

To solve this, you need to combine the like terms. The line terms are 3x +5x and -2+7. 3x+5x=8x and 7-2 (same thing as -2+7) is positive 5 so its 8x+5

6 0
2 years ago
Read 2 more answers
Tan(θ)/sec(θ) − cos(θ)
myrzilka [38]
Sin(theta)- cos(theta)
4 0
3 years ago
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