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3 years ago

What is the following product? (Xv7-3v8)(xv7-3v8)

Mathematics

1 answer:

ahrayia [7]3 years ago

6 0

Answer:

Step-by-step explanation:

I'm not really sure tho

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HELLPPPP PLEASE QUICKK ASAP

asambeis [7]

Answer:

Step-by-step explanation:

The reason why it is 9 is because if you look to the bigger triangle, you can see that 15 is 3/4 the size of 20, so once you find what number is 3/4 of 12, you have the answer, 9! Hope this helps!

6 0

3 years ago

Part A: describe how you can decompose this shape into triangles. (2 points) Part B: what would be the area of each triangle? (5

Kipish [7]

Answer:

Part A: Describe how you can decompose this shape into triangles: If you draw a line from each vertex to the vertex at the opposite side of the hexagon, you will form 6 triangles.

Part B: What would be the area of each triangle: 62.4

Part C: Using your answers above, determine the area of the table's surface: 374 .4

Step-by-step explanation:

Part A: Describe how you can decompose this shape into triangles: If you draw a line from each vertex to the vertex at the opposite side of the hexagon, you will form 6 triangles.

Part B: What would be the area of each triangle: bxh /2

12 x 10.4 /2

Part C: Using your answers above, determine the area of the table's surface: 374.4

5 0

2 years ago

I need to know what goes in boxes <br> 10 points :)

Evgen [1.6K]

Answer:

1/10 + 1/2

= 1/10 + 5/10

= 6/10 or 3/5

7 0

2 years ago

Read 2 more answers

What is the sum of the geometric series

lbvjy [14]

If $S$ denotes the sum of the first $n$ terms of a geometric series with first term $a$ and common ratio $r$ , then

$S=a+ar+ar^2+\cdots+ar^{n-3}+ar^{n-2}+ar^{n-1}$
$rS=ar+ar^2+ar^3+\cdots+ar^{n-2}+ar^{n-1}+ar^n$
$\implies S-rS=a+(ar-ar)+(ar^2-ar^2)+\cdots+(ar^{n-1}-ar^{n-1})-ar^n$
$\implies (1-r)S=a(1-r^n)$
$\implies S=a=\dfrac{1-r^n}{1-r}$

Using summation notation, you have

$S=\displaystyle\sum_{x=1}^nar^{x-1}=\sum_{x=0}^{n-1}ar^x=a\dfrac{1-r^n}{1-r}$

In this case, you have $a=2$ , $r=\dfrac12$ , and $n=16$ . So the value of the sum is

$\displaystyle\sum_{x=0}^{15}2\left(\frac14\right)^x=2\dfrac{1-\left(\frac14\right)^{16}}{1-\frac14}\approx2.67$

Rounded to the nearest whole number, the answer would be 3.

4 0

3 years ago

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a_sh-v [17]

2 hours she earns €16
3 hours she earns €24

7 0

3 years ago

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