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Maksim231197 [3]
2 years ago
10

JOHN HAD A VERY CHALLENGING FRACTION MULTIPLICATION PROBLEM TO DO BUT HIS SISTER SAID IT WAS REALL EASY TO DO MENTALLY . CAN YOU

FIND THE ANSWER MENTALLLY? EXPLAIN HOW 76/81 X 80/76=
Mathematics
2 answers:
Andrej [43]2 years ago
7 0
80/81 or in decimal form 0.98
Norma-Jean [14]2 years ago
5 0

Answer:

80/81 or in decimal form 0.98

Step-by-step explanation:

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What is the value of angle x°?
erastova [34]

Answer:

64^\circ

Step-by-step explanation:

Please refer to the attached figure for the labeling and construction in the given figure:

Given that minor angle of arc AB is 116^\circ.

Or in other words, we can say that angle subtended on the center O by the arc is 116^\circ.

Now, PA and PB are the tangents so, if we join the center of circle O with A and B, the angles formed are right angles.

i.e.

\angle PAO = 90^\circ\\\angle PBO = 90^\circ

Now, we know that sum of internal angles of a quadrilateral is equal to 360^\circ.

Here, we have the quadrilateral AOPB.

\therefore \angle PAO +\angle PBO+\angle AOB +\angle APB=360^\circ\\\Rightarrow 90+90+116+x=360^\circ\\\Rightarrow x = 360 - 180 - 116\\\Rightarrow x = 64^\circ

Hence, the correct answer is:

x = 64^\circ

3 0
4 years ago
Anyone know how to do this ? If so can u help me ? Thanks <3
kramer

Answer:

24.1 x 10^4 = 241000 .056 x 10^7 = 560000 507 x 10^-5 = 0.00507

Step-by-step explanation:

for scientific notation, all you need to do is start at the decimal point (or end of whole number) and move over the amount of spaces (the exponent) to the right. if it is a negative exponent, instead of moving to the right, you should move to the left.

for example : 500 x 10^3

when you start from the last zero and move to the right, you need to fill the space with three zeroes.

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What is 124457.287787 rounded two decimal places​
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Answer:

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Step-by-step explanation:

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