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Law Incorporation [45]

3 years ago

13

Please answer this correctly.I want expert people or genius people to answer this

1 answer:

Hoochie [10]3 years ago

4 0

Answer:

298.5 cm^2.

Step-by-step explanation:

The area of the triangular base

= 1/2 * base * height

= 1/2 * 10 * 8.7 cm^2

There are 3 other triangular sides all withe the same area and each of them as area = 1/2 * 10 * 17

So the total surface area of the pyramid

= 1/2 * 10 * 8.7 + 3 * 1/2 * 10 * 17

= 5 * 8.7 + 3 * 85

= 298.5 cm^2.

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36, ___, ___, 32/3 is a geometric sequence, with some terms missing. First, please solve for "r", the common ratio between each

Nikitich [7]

Answer:

The geometric sequence is

36,24,16, $\frac{32}3$ ,.......

Step-by-step explanation:

The first term of the g.s is 36.

The 4th term of the given sequence is $\frac{32}{3}$ .

The $n^{th}$ term of the geometric sequence is

$T_n=ar^{n-1}$

Where a is the first term of the geometric sequence and r is the geometric sequence.

Then 4th term of the sequence is

$T_4=ar^{4-1}$

$\Rightarrow \frac{32}3=36r^3$

$\Rightarrow r^3=\frac{32}{3\times 36}$

$\Rightarrow r=\sqrt[3]{ \frac{8}{27}}$

$\Rightarrow r=\frac{2}{3}$

Then, second term of the sequence $=36\times( \frac 23)^{2-1}$

$=36\times \frac 23$

=24

The third term of the sequence is $=36\times( \frac 23)^{3-1}$

$=36\times( \frac 23)^2$

=16

The geometric sequence is

36,24,16, $\frac{32}3$ ,.......

5 0

4 years ago

Read 2 more answers

9x-20/(x+6)^2 partial fraction decomposition

Kryger [21]

We're looking for $a,b$ such that

$\dfrac{9x-20}{(x+6)^2}=\dfrac a{x+6}+\dfrac b{(x+6)^2}$

Multiplying both sides by $(x+6)^2$ gives us

$9x-20=a(x+6)+b$

Notice that when $x=-6$ , the term involving $a$ vanishes and we're left with

$9(-6)-20=b\implies b=-74$

Then

$9x-20=a(x+6)-74=ax+6a-74\implies a=9$

so that

$\dfrac{9x-20}{(x+6)^2}=\boxed{\dfrac9{x+6}-\dfrac{74}{(x+6)^2}}$

3 0

3 years ago

Read 2 more answers

(Someone Help Me Please)

ololo11 [35]

Answer:

1

Step-by-step explanation:

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6 0

3 years ago

ziro4ka [17]

Answer:yhjghjghj

Step-by-step ex6757lanation:

4 0

4 years ago

The product of 25 and the number of apples

GREYUIT [131]

"Product" means multiplication
Number of apples we will use the variable "a"

ANSWER: 25a

6 0

3 years ago