I need help on these two

Mathematics

1 answer:

lbvjy [14]3 years ago

6 0

8) y = 1/2x + 2

10) y= 9/5x + 5

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5. An angle bisector of a triangle divides the opposite side of the triangle into segments 6 cm and 5 cm long. A second side of

Umnica [9.8K]

This is not my work but i hope this can help you with your problem
https://answers.yahoo.com/question/index?qid=20120518194118AAhi738

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3 years ago

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Simplify Simplify 6 - 23 + (-9 + 5) · 2.

Vlad [161]

Answer:

The answer is −42

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3 years ago

-4x+6+30 for some value of x, what is the value of -2x+5, for the same value of x?

lana66690 [7]

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The value of X is 15.5.

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3 years ago

Cupro-nickel coins are minted by mixing copper and nichel in the ratio 4:1

Softa [21]

Copper: Nickel = 4:1

a) How much copper needed for 20 kg nickel
   C:N = 4: 1
   C:20 = 4:1

C/20 = 4/1 Cross Multiply
C*1 = 4*20
C = 80

80kg Copper would be needed.

b) How much Nickel would be needed for 20 kg of Copper
   C:N = 4: 1
   20:N = 4:1

20/N = 4/1 Cross Multiply
4*N = 1*20
4N = 20 Divide both sides by N.

N = 20/4 = 5

5kg Nickel would be needed.

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4 years ago

If the half-life of aspirin in the bloodstream is 5 hours, how much aspirin is left in the bloodstream 12 hours after 1000 milli

Tom [10]

$\bf \textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &1000\\ t=\textit{elapsed time}\dotfill &12\\ h=\textit{half-life}\dotfill &5 \end{cases} \\\\\\ A=1000\left( \frac{1}{2} \right)^{\frac{12}{5}}\implies A\approx 1000\cdot 0.189\implies A\approx 189$

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4 years ago