The milliliters of acid in the solution is 74.1 milliliters
<h3>How to determine the milliliters of acid in the solution?</h3>
The given parameters are:
Volume of the solution = 388 milliliters
Proportion of acid in the solution = 19.1%
The milliliters of acid in the solution is then calculated as:
Milliliters = Volume of the solution * Proportion of acid in the solution
Substitute the known values in the above equation
Milliliters = 388 milliliters * 19.1%
Evaluate the product
Milliliters = 74.1 milliliters
Hence, the milliliters of acid in the solution is 74.1 milliliters
Read more about proportions at:
brainly.com/question/1781657
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<h3>Answer: angle T = 70</h3>
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Work Shown:
Quadrilateral RSTU is a kite. In geometry, any kite has two pairs of adjacent congruent sides. In this case, RU = RS is one pair of adjacent congruent sides (single tickmarks), while TU = TS is the other pair of adjacent congruent sides (double tickmarks).
Draw diagonal line segment TR. This forms triangles TUR and TSR.
Through the SSS (side side side) congruence theorem, we can prove that the two triangles TUR and TSR are congruent.
Then by CPCTC (corresponding parts of congruent triangles are congruent), we can say,
angle U = angle S = 90
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Re-focus back on quadrilateral RSTU (ignore or erase line segment TR). The four angles of any quadrilateral will always add to 360 degrees. Let x be the measure of angle T.
(angleU)+(angleR)+(angleS)+(angleT) = 360
90+110+90+x = 360
290+x = 360
290+x-290 = 360-290 ... subtract 290 from both sides
x = 70
<h3>angle T = 70</h3>
