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3 years ago

Helpppp plzzzzzzzzzzzzzzz

Mathematics

1 answer:

marin [14]3 years ago

5 0

Answer:

y= 0.2(0.05)^x

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3d+16=-2(5-3d) solve equation

strojnjashka [21]

Answer:

The value of d of the given equation is 8.67

Step-by-step explanation:

Given equation as :

3 d + 16 = - 2 × ( 5 - 3 d )

Or, 3 d + 16 = - 10 + 6 d

Or, 16 + 10 = 6 d - 3 d

So , 26 = 3 d

∴ d = $\frac{26}{3}$ = 8.67

Hence The value of d of the given equation is 8.67 Answer

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3 years ago

What is the slope of (3,0) and (9,12)?

vredina [299]

Answer:

$m=2$

Step-by-step explanation:

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Simply plug in your 2 coordinates into the slope formula to find slope m:

$m=\frac{12-0}{9-3}$

$m=\frac{12}{6}$

$m=2$

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Setler [38]

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Step-by-step explanation:

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Solve by using the quadratic formula. 15x^2 - 1 = 2x

Lapatulllka [165]

$15x^2-1=2x\\\\15x^2-2x-1=0\\\\a=15;\ b=-2;\ c=-1\\\\\Delta=b^2-4ac\to\Delta=(-2)^2-4\cdot15\cdot(-1)=4+60=64\\\\x_1=\frac{-b-\sqrt\Delta}{2}a;\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{64}=8\\\\x_1=\frac{2-8}{2\cdot15}=\frac{-6}{30}=-\frac{1}{5};\ x_2=\frac{2+8}{2\cdot15}=\frac{10}{30}=\frac{1}{3}$

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3 years ago

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