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bagirrra123 [75]
3 years ago
12

Change the following subtraction expression to addition: 2 - 11

Mathematics
2 answers:
tester [92]3 years ago
3 0

Answer:

I think it would be 2+ -11

Step-by-step explanation:

babunello [35]3 years ago
3 0

Answer:

2 + -11

Step-by-step explanation:

-2+11=9 nope!

2+-11= -9 yyes

2+11=13 nope

2-11= -9

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there are 27 red or blue marbles in the bag the number of red marbles is five less than three times the number of the blue marbl
alexdok [17]
So assuming that the total =27
r+b=27
r=-5+3b
r=3b-5
subsitute 3b-5 for r in first equation
3b-5+b=27
4b-5=27
add 5
4b=32
divide by 4
b=8
subsitute
b+r=27
8+r=27
subtracct 8
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blue=8
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2 years ago
What is 3,493 divided by 37? Please include it’s remainder, too;
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3 years ago
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lesantik [10]
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How would the expression x^3-8 be written using difference of cubes
ludmilkaskok [199]

we can use formula

a^3-b^3=(a-b)(a^2+ab+b^2)

we can compare

we get

a=x

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now, we can plug that in formula

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x^3-2^3=(x-2)(x^2+2x+2^2)

now, we can simplify it

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4 0
3 years ago
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Can someone help with number 20
enyata [817]

Answer:B: 36°


Step-by-step explanation:

We know that ∆ABC is isoceles, making (angle)<ABC and <BCA congruent because base angles of isoceles triangles are congruent.


Because we have parallel lines, we can look for alternate interior angle pairs. <BCA is congruent to <DAC because they're alternate interior angles.


If <BCA is x then so is <ABC.


Since triangles add up to 180° we can add all of the angles (3x+x+x) and set it equal to 180.

3x+x+x=180

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If we were looking for <BAC we would plug that back in and solve, but we're looking for <BCA which is equal to x, therefore m<BCA=36°


3 0
3 years ago
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