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OlgaM077 [116]
3 years ago
14

What is x in this equation- 3/2x-7=-11

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
3 0

3/2x-7=-11


We move all terms to the left:


3/2x-7-(-11)=0



Domain of the equation: 2x!=0


x!=0/2


x!=0


x∈R



We add all the numbers together, and all the variables


3/2x+4=0


We multiply all the terms by the denominator



4*2x+3=0


Wy multiply elements


8x+3=0


We move all terms containing x to the left, all other terms to the right


8x=-3


x=-3/8


x=-3/8

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Due in 6 hours please help.
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Answer:2 and 4 and the second one is 7 and 8

Step-by-step explanation:

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So I really don't understand what​ I'm doing....I would be glad if you helped
SSSSS [86.1K]
We are supposed to assume FC and AD is straight line
let's find all the angles


you already see the right angle is 90 degrees, you got that right
striaght line is 180 degrees

90+46+EF=180
136+EF=180
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EF=44
now we got another straight line
you did get that A F=46 because it is oposite

notice: AB=BC because same angle designition
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180+46+2AB=360
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3 years ago
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Leokris [45]

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5 0
3 years ago
Pete borrowed $400 for 1 year. He paid back a total of $440. What was the interest rate per year?
OleMash [197]

I=PRT/100

1. Make R (rate) subject

R/100= I/PT

2. Substitute and calculate

r/100= i/pt

r/100= 40/400 × 1

(<em>4</em><em>0</em><em> </em><em>i</em><em>s</em><em> </em>from 440-400.<em>T</em><em>h</em><em>e</em><em> </em><em>i</em><em>n</em><em>t</em><em>e</em><em>r</em><em>e</em><em>s</em><em>t</em>)

r/100= 0.1

r/100×100= 0.1×100

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To confirm

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A triangle with an angle measuring 104° must be which of these?
Tema [17]
This will be an obtuse angled triangle because one angle is greater than 90 degrees.
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