In the triangle below,<br> b =____.<br> If necessary, round your answer to two decimal places.

40k+36=? <br> ivbuivbr vpui34vb[ervb[uir3bv34

kobusy [5.1K]

Answer:

0

Step-by-step explanation:

$40k = - 36$

$k = - \frac{9}{10}$

$40( - \frac{9}{10} ) + 36 = 0$

$- 36 + 36 = 0$

4 0

3 years ago

What’s the mean of 3,9,10,14,15,16

Ostrovityanka [42]

I think it might be 11.1

4 0

4 years ago

Read 2 more answers

What is the distance around the perimeter of the garden? 60 ft 60 startroot 3 endroot ft 120 ft 120 startroot 3 endroot ft

Mnenie [13.5K]

The distance around the perimeter would be 120 ft.

<h3 /><h3>What is perimeter?</h3>

Perimeter is the distance around the edge of a shape.

The complete question is

A garden is designed in the shape of a rhombus formed from 4 identical 30°-60°-90° triangles. The shorter distance across the middle of the garden measures 30 feet.

A rhombus is shown. Lines are drawn from each point to the opposite point to form 4 right triangles. The other 2 angle measures are 30 and 60 degrees. The base length of each triangle is 15 feet.

What is the distance around the perimeter of the garden?

let AE is the half of the diagonal AC.

AC = 30 ft.

So, AE = ½ * 30

AE = 15 ft

Now, using trigonometry

sin 30 = 15/AD

0.5= 15/AD

AD= 30 ft

Hence, distance around the perimeter would be: AD+AD+AD+AD=

=30 ft + 30 ft + 30 ft + 30 ft

= 120 ft.

Learn more about this concept here:

brainly.com/question/16400817

#SPJ1

5 0

2 years ago

You have two parents, four grandparents, eight greatgrandparents, and so forth.

Leviafan [203]

A.
In the first generation we have 2 ancestors.
In the second generation we have 4 ancestors or $2^{2}$ ancestors.
In the third generation we have 8 ancestors ot $2^{3}$ ancestors.

We can see that each succesive generation has two times more members. The sum is:
$2+4+8+16+...+ 2^{40}$

To calculate number of ancestors we can use formula <span>for the sum of a geometric sequence. Geometric sequence is sequence of numbers that differ by a certain factor. This factor is called ratio. Formula is:
</span> $S= a_{1} * \frac{1- r^{n} }{1-r}$
<span>Where:
S -> sum
a1 -> first member of a sequence
r -> ratio
n -> number of elements

For this question:
a1 = 2
r = 2
n = 40
</span> $S= 2* \frac{1- 2^{40} }{1-2} =2 199 023 255 550$
<span>
b.
1 generation = 25 years
40 generations = 40 * 25 = 1000 years

c.
Total number of people who have ever lived = </span> $10^{10}$
Number of ancestors in 40 generations = $2.2*10^{12}$

The number of ancestors is greater than total number of people who have ever lived. This means that not all ancestors were distinct and that in each generation both men and women had children with more than one partner.

8 0

3 years ago

on Monday Steven read 9 pages of his new book to finish the first chapter on Tuesday he needs to read double the number of pages

GarryVolchara [31]

Answer=18 pages

Steven read 9 pages on Monday. If he needs to read DOUBLE that amount on Tuesday, then we need to take the number of pages he read on Monday and times it by 2.

9*2=18pages

Steven needs to read 18 pages on Tuesday.

**Remember that Double is the same as 'two times more', or 2x more...

3 0

4 years ago

Read 2 more answers

In the triangle below, b =____. If necessary, round your answer to two decimal places.