3 years ago

A personal identification number (PIN)

Mathematics

1 answer:

Alexxx [7]3 years ago

6 0

Jejebbebdnsbdhwbejjeejejejrjfjfjfjfjfjfjfjfjfjfjfjfjjffjufcucuucjfufjfudjuejeuejeuejeuejejj

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What is the length of AC¯¯¯¯¯ ?

Harman [31]

Answer:

AC = 12.38 cm

Step-by-step explanation:

When there are 2 pairs given, we can use the sine rule to solve the problem.

By pairs we mean "an angle and side opposite to it"

<em>1 pair is 85.2 degree angle and 13 cm, and another pair is 71.6 degree angle and the side AC (which we want to figure out).</em>

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Sine Rule is given by $\frac{SinA}{a}=\frac{SinB}{b}$

where,

A and B are the two respective angles and a and b are the two respective sides (of the pairs). Plugging all the info and using algebra, we have:

$\frac{Sin85.2}{13}=\frac{Sin71.6}{AC}\\AC*Sin85.2=13*Sin71.6\\AC=\frac{13*Sin71.6}{Sin85.2}\\AC=12.38$

Thus, AC = 12.38 cm

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3 years ago

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Jake cut a pipe that was 17 1/2 inches long into 5 equal pieces how long should each piece .assuming there was no waste how long

Likurg_2 [28]

Change 17 1/2 into an improper fraction
35/2
Divide it by 5 or multiply by 1/5
35/10
The final answer, in simplified form, would be
3 1/2

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3 years ago

Question 4

saveliy_v [14]

Answer:

whole #372

nearest half#372.2

nearest 10th#372.24

Step-by-step explanation:

4 in 4.24 is the whole number

.20 would be nearest half

.04 is the tenth

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3 years ago

Root 225 rational or irrational? plzz help urgent.

telo118 [61]

Is the Square Root of 225 Rational or Irrational? 225 can be expressed as the ratio of two integers. As 225 can be expressed as 225 = 225/1. Thus 225 is rational.

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3 years ago

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EMERGENCY PLS HELP: Write a ratio that gives the tangent of

Artyom0805 [142]

Tan = opposite/hypotenuse
tan = 25/65
tan = 5/13

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3 years ago