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nignag [31]
4 years ago
10

Simplify 7b-2b+3b+4b

Mathematics
2 answers:
kolezko [41]4 years ago
4 0
It should be just 12b, since they all have the same exponent, they can all be combined.
Schach [20]4 years ago
3 0
The answer is 12b as 7b - 2b equals 5b add 3b add 4b equals 12b as they all have the same denominator I hope that helps you
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Write an equation for a line through (1,-1) and (2,3)
ratelena [41]

Answer:

y = 4x - 5

Step-by-step explanation:

Use the point slope form and add in the ordered pairs \frac{3 + 1}{2 - 1} , and once you solve this it equals \frac{4}{1}, or just 4. Now you have the first part of your equation, y = mx + b, but now you have y = 4x + b. To find b, substitute the x and y values of one of the given ordered pairs in for x and y in the equation, and I am using (2,3). The equation now looks like this: 3 = 4(2) + b. Now solve: 3 = 8 + b

Subtract 8 from both sides to get -5 = b. Now you have a full equation: y = 4x -5

5 0
3 years ago
If John has 2 apples and Mika has 6. How many apples are there combined
kupik [55]
Combined there are 8 apples.
8 0
3 years ago
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Choose the correct simplification.
iren [92.7K]

Answer:

x^3y^6z^3 is correct

Step-by-step explanation:

Taking an exponent to the power of an exponent means multiplying the exponents together.

So y^2^3 is the same as y^(2*3) or y^6

Hope that made sense!

5 0
3 years ago
Given: mAngleADE = 60° and mAngleCDF = (3x + 15)°
Alexeev081 [22]

The missing reason in step 3: is vertical angles are congruent, while the missing reason in step 5 is: definition of congruency.

<h3>What are Vertical Angles?</h3>

Two angles are referred to as vertical angles is:

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  • They are non-adjacent angles.
  • They do not share a common side.

<h3>What is the Vertical Angles Theorem?</h3>

According to the vertical angles theorem, two angles that are vertical angles must be congruent to each other, that is, they are equal in measure.

In the image given, as attached below, angle EDF and angle ADC are vertical angles pair. Therefore, based on the vertical angles theorem, they have equal measure (they are congruent to each other).

Thus, the missing reason in step 3: is vertical angles are congruent, while the missing reason in step 5 is: definition of congruency.

Learn more about vertical angles on:

brainly.com/question/14362353

#SPJ1

8 0
2 years ago
Expand and Simplify (2x+1)(x-2)(x+3)
NeTakaya

(2x + 1)(x - 2)(x + 3) \\  = (2x  + 1)( {x }^{2}  + x - 6) \\  ={2x}^{3}  + 2 {x}^{2} -12x +  {x}^{2}  + x - 6 \\  = 2 {x}^{3}  + 3 {x}^{2}  - 11x - 6
hope this would help you
6 0
4 years ago
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