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ziro4ka [17]
3 years ago
11

Is -42-10=-52 open, true or false ?

Mathematics
2 answers:
pantera1 [17]3 years ago
8 0
I think the answer is True
BartSMP [9]3 years ago
8 0
Not sure what 'open' means but

-42-10=-52
imagine that you are doing this
(-42)+(-10)=-52
neagtive moves backwards
so 
42 units back+10 units back=-52 units back
seems right

true

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Emily buys a dress for ?48 and adds 25% onto the price before putting it into her shop window what price does he price tag say i
Maurinko [17]

Answer:

$60

Step-by-step explanation:

$48 x 25% = $12

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6 0
3 years ago
HELP ASAP IM BEGGING U
cupoosta [38]
I think you are correct
5 0
3 years ago
F(x) = 2x - 3 and f(x) = f'(x), find the value of x.​
Salsk061 [2.6K]

Answer:

x=1

Step-by-step explanation:

According to your typed question,

f(x)=2x-3

Let f(x)=y

y=2x-3

Now,

Interchanging the positions of x and y

x=2y-3

x+3=2y

x+3/2=y

f'(x)=x+3/2

Then,

f(x)=f'(x)

2x-3=x+3/2

2(2x-3)=x+3

4x-3=x+3

4x-x=3+3

3x=3

x=3/3

x=1

According to your image question,

f(x)=x/2x-3

f(x)=f'(x)

Now,

Let y=f(x)

y=x/2x-3

y(2x-3)=x

2xy-3=x

2xy-x=3

x(2y-1)=3

2y-1=3x

2y=3x+1

y=3x+1/2

f'(x)=3x+1/2

Then,

f(x)=f'(x)

x/2x-3=3x+1/2

2x=6xsq+2x-9x+3

2x=6xsq+7x+3

solve for x ok

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allochka39001 [22]
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2 years ago
F(x)= 13,500 .89x, is this growing or decay
Oksanka [162]
I hope and think it’s 12015
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