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charle [14.2K]
4 years ago
6

Expanded form 3x(4-9)

Mathematics
1 answer:
ivanzaharov [21]4 years ago
6 0

Answer:

-15x

Step-by-step explanation:

1) distribute "3x" with each term inside the parantheses

3x*4

3x*-9

12x-27x=-15x

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Solve for s. 1/2 s = 7/2. A 1/7. B 2/7. C 3. D 7.
fenix001 [56]

Simple equation and only requires one step to solve. Remember, a number and a variable juxtaposed means multiplications.

\frac{1}{2} s = \frac{7}{2} \\ \\\frac{(\frac{1}{2}s)}{\frac{1}{2}} = \frac{\frac{7}{2}}{\frac{1}{2}} \\ \\\\s = \frac{\frac{7}{2}}{\frac{1}{2}} \\ \\\\s = \frac{7}{2} * \frac{2}{1} \\ \\\\s = 7

One step? I know. It seems more because I was slowing down the calculations for you so could understand everything happening. For someone who can do this in their sleep it would, for them, take one step.

4 0
3 years ago
Read 2 more answers
Calculate the perimeter to the nearest tenth​
fomenos

Answer: the perimeter is 40.9 ft

Step-by-step explanation:

The given figure is a trapezium. It is made up of a rectangle and a right angle triangle.

The perimeter of the trapezium is the distance around the figure. This means that the inner dimensions are not included.

Since the opposite sides of the rectangle are equal, it means that the base of the trapezium would be

10 + 4 = 14 ft

Therefore, the perimeter of the trapezium would be

8 + 10 + 8.9 + 14 = 40.9 ft

6 0
3 years ago
What is the positive solution to the equation 0 = -x2 + 2x + 1?
katrin2010 [14]

Answer:

there is no solution

Step-by-step explanation:

1st switch sides: -x2+2x+1=0

2nd add similar elements: -2x + 2x = 0

1 = 0

Thus, this equation has no solution

hope i helped :)

5 0
4 years ago
Read 2 more answers
Two angles are vertical angles. If the angles are also complementary angles, what is the degree of the angle
jeyben [28]

Vertical angles are congruent according to the vertical angles theorem. If they are complementary as well, then they both sum up to 90 degrees. So, form an algebraic equation!

x+x=90 or 2x=90... Using the division property of equality, the angle measure (or x) equals 45...

Happy Solving!

4 0
3 years ago
The price of jeans was reduced $6 per week for 7 weeks. By how much did the price of the jeans change over 7 weeks?
Nimfa-mama [501]
Just multiply 6 by 7 since the price is reduced $6 per week.

$6.00 × 7 = $42.00

Your final answer is $42


I hope this helped!!
5 0
3 years ago
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