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Alexus [3.1K]
2 years ago
9

Are 3x and -8x like terms ?

Mathematics
1 answer:
zalisa [80]2 years ago
8 0
Yes cause they are the same degree.
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Someone please help with A, B and C?
Sergeu [11.5K]
A.)

3×4=12; 12×4= 48; 48×2= 96; 96+1= 97

B.)

3×4=12; 12+4=16; 16×2= 32; 32+3=35

C.)

3×4=12; 12+4=16; 16×2= 32; 32+1=33

The answer is B
6 0
2 years ago
Read 2 more answers
6. Calculate the area of the octagon in the<br> figure below.
Kryger [21]

Answer:

41\text{ [units squared]}

Step-by-step explanation:

The octagon is irregular, meaning not all sides have equal length. However, we can break it up into other shapes to find the area.

The octagon shown in the figure is a composite figure as it's composed of other shapes. In the octagon, let's break it up into:

  • 4 triangles (corners)
  • 3 rectangles (one in the middle, two on top after you remove triangles)

<u>Formulas</u>:

  • Area of rectangle with length l and width w: A=lw
  • Area of triangle with base b and height h: A=\frac{1}{2}bh

<u>Area of triangles</u>:

All four triangles we broke the octagon into are congruent. Each has a base of 2 and a height of 2.

Thus, the total area of one is A=\frac{1}{2}\cdot 2\cdot 2=2\text{ square units}

The area of all four is then 2\cdot 4=8 units squared.

<u>Area of rectangles</u>:

The two smaller rectangles are also congruent. Each has a length of 3 and a width of 2. Therefore, each of them have an area of 3\cdot 2=6 units squared, and the both of them have a total area of 6\cdot 2=12 units squared.

The last rectangle has a width of 7 and a height of 3 for a total area of 7\cdot 3=21 units squared.

Therefore, the area of the entire octagon is 8+12+21=\boxed{41\text{ [units squared]}}

4 0
3 years ago
Aya and Kendra want to estimate the height of a tree. On a sunny day, Aya measures Kendra's shadow as 3 meters long, and Kendra
densk [106]

Answer:

tree=4.5 meters tall

Step-by-step explanation:

1.5*3=4.5

6 0
2 years ago
Read 2 more answers
What are the steps for solving a absolute value equation.
Mamont248 [21]

Step 1: Isolate the absolute value

Step 2: Is the number on the other side of the equation negative?

Step 3: Write two equations without absolute value bars

Step 4: Solve both equations

8 0
3 years ago
Apply root test to the series.
Angelina_Jolie [31]
\displaystyle\lim_{n\to\infty}\sqrt[n]{\left|\left(\frac{5n+15}{2n-1}\right)^n\right|}=\lim_{n\to\infty}\frac{5n+15}{2n-1}=\dfrac52

Since this limit exceeds 1, the series diverges.
8 0
3 years ago
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