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oksian1 [2.3K]
2 years ago
9

a scientist had 3/4 liter of solution. he used 1/6 of the solution for an experiment. how much solution did the scientist use fo

r the experiment?
Mathematics
2 answers:
Rama09 [41]2 years ago
7 0
The answer is 7/12 because 3/4 - 1/6= 7/12
3/4 converts to 9/12 and 1/6 converts to 2/12. The domanaters stay the same, but 9-2=7. that is how you get 7/12
11111nata11111 [884]2 years ago
3 0
3/4 = 9/12
1/6 = 2/12
9/12 - 2/12 = 7/12
The answer is 7/12
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3 years ago
ANSWER ASAP!! Find the area of a triangle with legs that are: 12 m, 15 m, and 9 m.
Setler79 [48]

Answer:

<h2>54m²</h2>

Step-by-step explanation:

<h3>METHOD 1:</h3>

You can use the Heron's formula:

A=\sqrt{p(p-a)(p-b)(p-c)}

where

<em>p</em><em> - half of perimeter</em>

<em>a, b, c</em><em> - lengths of sides</em>

We have

a=12m;\ b=15m;\ c=9m

Calculate:

p=\dfrac{12+15+9}{2}=\dfrac{36}{2}=18\ (m)\\\\A=\sqrt{18(18-12)+(18-15)(18-9)}\\\\A=\sqrt{(18)(6)(3)(9)}\\\\A=\sqrt{2916}\\\\A=54\ (m^2)

<h3>METHOD 2:</h3>

Let's check that it is not a right triangle.

If the sum of the squares of the two shorter sides is equal to the square of the longest side, then this triangle is rectangular.

We have

9m < 12m

Check:

9^2+12^2=81+144=225\\15^2=225

This is a right trianglr wherew 9m and 12m are legs and 15m is a hypotenuse.

The formula of an area of a right triangle is:

A=\dfrac{ab}{2}

<em>a, b</em><em> - legs</em>

Substitute:

A=\dfrac{(9)(12)}{2}=\dfrac{108}{2}=54\ (m^2)

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Answer:

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One inequality is 0.8>0.7>0.6. I hope it
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An investment pays 4.6% annual interest compounded monthly. If $3100 is
elena55 [62]

Answer:

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