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Musya8 [376]
3 years ago
6

-5a - 12a + 2b - 3b

Mathematics
1 answer:
steposvetlana [31]3 years ago
6 0

Answer: −

1

7

−

Step-by-step explanation:

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Simplify each expression by combining like terms:<br> 9m-7m+13 <br> Please explain if you can
Bas_tet [7]
Subtract 9 and 7 (9-7) which gives you 2m
the answer is 2m+13
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3 years ago
Write the expression of polynomial a given the roots:
Liono4ka [1.6K]

Answer:

So it looks like the given zeros are 2i and -3. We have to work backwards.

x = -3 and x = 2i

For -3, we know that out factored form before would have been x + 3

For 2i, that means we took the square root of negative number because it is imaginary. So that means out factored for x2 + 4

So if we put these together:

(x2 + 4)(x + 3) = x3 + 3x2 + 4x + 12

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Step-by-step explanation:

4 0
3 years ago
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Express 8 to the power of 1 in exponential form
xxTIMURxx [149]

Answer:

8¹

Step-by-step explanation:

The given expression is :

8 to the power 1.

We need to write it in exponential form.

If we write 10³, here 10 is base and 3 is exponent.

8 to the power 1 = 8¹

The base is 8 and exponent is 1.

Hence, the exponential form is 8¹.

4 0
3 years ago
A map has a scale of 1 cm: 5 km. Determine how far apart two cities are if they are 8 cm apart on the map.
MaRussiya [10]

Answer:

i believe the answer is 40km.

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2 years ago
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This is for my Maths homework but I really don't know how to do the second one. Could someone please help.
Taya2010 [7]
Those tiny bars crossing those segments mean they are congruent
therefore you have isosceles triangles there
angles opposing congruent sides in isosceles triangles are also congruent
so
the other 2 angles in the 24 degrees triangle are (180-24)/2=78 degrees
now the angle close to the 24 from the 44 degrees triangle is also 78, that means that the third angle in the 44 triangle is 180-44-78=58
also the angle close to y is 58 (because of isosceles)
therefore y = 180-58=122 degrees
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3 years ago
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