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Harlamova29_29 [7]
3 years ago
8

Evaluate the expression x=7 18-1.8x=

Mathematics
1 answer:
ElenaW [278]3 years ago
5 0

18-1.8x= ?

x = 7

So, substitute the number in for the x

18-1.8*7

18-12.6=5.4

5.4 is your answer

-IronWolfX✔

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6 and<br> Find the value of this expression if x<br> y--1.<br> xy2<br> -5
zysi [14]

Answer:

y = 5;  x = 1/5

Step-by-step explanation:

xy = 1    ----->  x = 1/y

xy^2 = 5 -----> 1/y * y^2 = 5

y^2 / y = 5

y = 5

5x = 1

x = 1/5

Hope this Helps!

5 0
3 years ago
What's the area of this triangle
Luda [366]

Answer:

D      A = (1/2) (y₂ - y₁)(x₃ - x₁)

Step-by-step explanation:

b = (y₂ - y₁)

h = (x₃ - x₁)

A = (1/2)bh

A = (1/2) (y₂ - y₁)(x₃ - x₁)

8 0
3 years ago
How you save 6x-2=5x+29
dolphi86 [110]
6x-2=5x+29
6x-5x-2=29
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3 0
3 years ago
The Fibonacci sequence is the sequence 1, 1, 2, 3, 5, ... where the first and second terms are 1 and each term after that is the
noname [10]

Answer:

44,278,106,022,432,739,384.375  =   1/8 of ((1+√5)/2)^100/√5

Step-by-step explanation:

We separate the x10^21 number into 2 so that becomes x10^8 number with decimal of .75 when it is a x10^21 split into 2 large parts and a small subtraction creates the third step. we have found 1/4 then we half.

354224848179261915075 / 4

= 000000000000065478768.75

354224  848179000000000/4

-88556212044.8

= 354 has become a 12 digit number temporary starting with 885 the decimal .8 is simply put in front

3542248481  79-  so it has become a x10^20 number. 885562120448,65478768.75

We arrange the comma's

  88,556,212,044,865,478,768.75

  88,556,212,044,865,478,768.75

  88,556,212,044,865,478,768.75

  88,556,212,044,865,478,768.75  is division by 4

=354224848179261915075

88,556,212,044,865,478,768.75 /2

= 44278106022 (/2) 432739384.375(/2)  in two part.

=  44278106022,432739384.375 replace /2 with comma

= 44,278,106,022,432,739,384.375 replace all other comma.

4 0
3 years ago
Can someone please help me
azamat

Given:

angle ECB=51 degrees

=>

angle EOB = 2*angle ECB = 2*51 = 102 degrees = arc EAB


Also given minor arc AB = 72 degrees

therefore

minor arc EA = 102-72=30 degrees

5 0
3 years ago
Read 2 more answers
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