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MariettaO [177]
2 years ago
13

Simplify the following expression: 9x-12+4x+4+10x

Mathematics
2 answers:
mel-nik [20]2 years ago
6 0

Answer:

23x-8

Step-by-step explanation:

1. First add the numbers

2. then C.L.K Combine Like Terms

9x-8+4x+10x

23x-8

WITCHER [35]2 years ago
4 0

Answer:

15x-8

Step-by-step explanation:

9x-12+4x+4+10x

9x+4x+10x  -12+4

15x-8

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V/199 is between...?
MissTica
I think E but I’m probably wrong???
7 0
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Find the area of the trapezoid. points are (-5,-3)(4,-3)(6,-7)(-7,-7)​
Olegator [25]

Answer:

44 square units

Step-by-step explanation:

The area of a trapezoid with bases b₁ and b₂ and height h is given by the formula

A=\left(\dfrac{b_1+b_2}{2}\right)h

If you're wondering how we get this formula, check the attached illustration (remember the area of a parallelogram is its base multiplied by its height)! Moving on to our trapezoid, the pairs of points (-5,-3)(4,-3) and (6,-7)(-7,-7) form two horizontal segments, which form b₁ and b₂, and our height is the distance between the y-coordinates -3 and -7, which is 4. We can find b₁ and b₂ by finding the distance between the x coordinates in their pairs of points:

b_1=|-5-4|=|-9|=9\\b_2=|6-(-7)|=|6+7|=13

Putting it altogether:

A=\left(\dfrac{9+13}{2}\right)(4)=\left(\dfrac{22}{2}\right)(4)=(11)(4)=44

So the area of our trapezoid is 44.

4 0
3 years ago
Please help asap! Correct answers only!
SOVA2 [1]

Answer:

$98100

Step-by-step explanation:

Using the given formula :

I = P × R × T

I = 90000 × 3/100 × 3

I = $8100

He saves = 8100 + 90000 = $98100

5 0
3 years ago
Let f (x)<br>sinx cosx, then f'(x) =<br>A. Cos2x<br>B. sin2x<br>C. tan 2x<br>D. cos2x - sin2x<br>​
Degger [83]

Answer:

A. Cos2x

Step-by-step explanation:

f(x) = sin(x)cos(x) = (1/2) sin(2x)   using double angle formula.

f'(x) = ( (1/2)sin(2x) )' = 2(1/2)cos(2x) = cos(2x)

8 0
3 years ago
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