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1 year ago

Solve the equation. 3x-5=2(-x-5)

Mathematics

2 answers:

Ira Lisetskai [31]1 year ago

5 0

Answer:

The value of x = -1

Step-by-step explanation:

=> 3x-5=2(-x-5)

=> 3x - 5 = -2x - 10

=> 3x + 2x = -10 +5

=> 5x = -5

=> x = -5/5

=> x = -1

Andru [333]1 year ago

4 0

Answer:

3x-5=-2x-10

or,3x+2x=-10+5

or,5x=-5

or,x=-5/5

or,x=-1

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Explanation:

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2 years ago

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3 years ago

Find the exponential function P(t)=P0a^t where P(2)=5 and P(4)=10

asambeis [7]

Answer:

$P(t)=\frac{5}{2} \cdot (\sqrt{2})^t$

Step-by-step explanation:

$P(2)=5$ meants when $t=2$ , that the value for $P(t)$ is 5.

So this gives us this equation:

$5=P_0 \cdot a^2$

$P(4)=10$ meants when $t=4$ , that the value for $P(t)$ is 10.

So this gives us this equation:

$10=P_0 \cdot a^4$

So I take equation 2 and divide it be equation 1 I get:

$\frac{10}{5}=\frac{P_0 \cdot a_4}{P_0 \cdot a_2}$

Simplifying:

$2=a^2$

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Divide both sides by 2:

$\frac{5}{2}=P_0$

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$P(t)=\frac{5}{2} \cdot (\sqrt{2})^t$

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