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Burka [1]
3 years ago
13

A chemist is using 327 milliliters of a solution of acid and water. If 13.1% of the solution is acid, how many milliliters of ac

id are there? Round your answer to the nearest tenth.
Mathematics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

42.837 milliliters

Step-by-step explanation:

327 x 0.131 = 42.837

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Which expression gives the volume of a sphere with radius 5
sashaice [31]

Answer:

V ≅ 523.33

Step-by-step explanation:

V = 4/3(π*r³)

here r is 5 then

 = 4/3 (π*5³)

≅ 523.33

4 0
3 years ago
Elaine has a desktop that is 4.5 feet by 5.5 feet, and she is going to cover it with patches of wallpaper that each measure 18 i
I am Lyosha [343]


first transform feet into inches 4.5 feet = 48.5 inches; 5.5 feet = 60.5 inches;

then get the area in inches : 48.5 x 60.5 = 2934.25 inches; the area of one patch is 18 x 24 = 432 inches

so now divide the area of the desktop by the area of one patch

2934.25 / 432 = 6.7 so she needs 7 patches


7 0
3 years ago
What is the equation of the line that passes through the points (15, 9) and (Negative 2, 9)? y =
Alja [10]

Answer:

Y=9

Step-by-step explanation:

Because it passes through two points in a straight line, it must have no coefficient for x, just a Y-Intercept equal to the Y of the two points.

7 0
3 years ago
Multiply.<br> 2x(x2 + 2x - 6)
Stels [109]
<span>2x(x2 + 2x - 6)
</span>First add what is in the "(" wich is 2x+2x
<span>2x(4x - 6)
</span>Second multiply the 2x by the 4x & -6
<span>8x-12x
Now subtract the -12x from the 8x
8x-12x = -4x


</span>
8 0
3 years ago
Read 2 more answers
Write an equation for the vertical translation.
Lubov Fominskaja [6]

Answer:

y=-2/9 x – 9

Step-by-step explanation:

It really is simple translation because this is written in y=mx+b, where b is the given y-intercept. From there, just subtract what is needed to go down or add what is need to go up.

y=-2/9 x – 7 – 2

.:y=-2/9 x – 9

7 0
2 years ago
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