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Paladinen [302]
3 years ago
13

Find the length of the unknown side. Round your answer to the nearest tenth. *

Mathematics
1 answer:
sveticcg [70]3 years ago
6 0

Answer:

20cm

Step-by-step explanation:

a2 + b2 = c2

15x^{2} + bx^{2}  = 25x^{2} \\225 + b = 625\\625 - 225 = 400\\400\sqrt{x} = 20

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What is the value of a1 of the geometric series? Sigma-Summation Underscript n = 1 Overscript infinity EndScripts 12 (negative o
worty [1.4K]

Answer:

12

Step-by-step explanation:

The given geometric series is

\sum_{n = 1}^{ \infty} 12( { -  \frac{1}{9} })^{n - 1}

We want to determine the first term of this geometric series.

Recall that the explicit formula is

a_{n} = 12( { -  \frac{1}{9} })^{n - 1}

To find the first term, we put n=1 to get:

a_{1} = 12( { -  \frac{1}{9} })^{1 - 1}

This gives us:

a_{1} = 12( { -  \frac{1}{9} })^{0}

a_{1} = 12(1) = 12

Therefore the first term is 12

6 0
3 years ago
Read 2 more answers
80% is best represented by which the following fractions<br> A. 8/100<br> B.4/5<br> C.3/4<br> D.8/10
gladu [14]

Answer:

d!

Step-by-step explanation:

6 0
3 years ago
Answers need to be fractions, if they are not whole numbers. No decimals
klemol [59]

The Slope of lines parallel to line is 1/2 and the Slope of lines perpendicular  to line is -2.

<h3>What is the equation of a straight line ?</h3>

An equation that can be written in the form of y = mx+c

where m is the slope of the line

and c is the intercept on y axis

The equation given in the question is

y=1/2x−7

in this the slope = 1/2

Intercept = -7

For parallel Lines

For a parallel line , the slope of the line is same

and is given by  m = 1/2

For a perpendicular line

Slope will be equal to

-1/m

here -1/m = -2

Therefore the slope for perpendicular line is -2.

To know more about Straight Line equation

brainly.com/question/959487

#SPJ1

7 0
2 years ago
I WILL GIVE BRAINLIEST<br> Answer must be simplified<br> 4x ≤ 12
alina1380 [7]

Answer:   x ≤ 3

Step-by-step explanation:

4x ≤ 12

divide each side by 4

x≤3

8 0
3 years ago
Part 2 .............
Arada [10]
1) <ABC
2) 120
3) 22
4) <GFH
5) 29
6) 90
7) 45
8) 63
9) 45
10) 110
4 0
3 years ago
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