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SVETLANKA909090 [29]
1 year ago
6

When Joanne checked her Work by substituting the value of the variable back into the equation she got an answer of 12.34 equals

12.33 explain why Joanne could have gotten the answer correct even though she did not get a true statement when she checked her work
Mathematics
2 answers:
Bas_tet [7]1 year ago
3 0

Answer:

Joanne could have rounded her answer to a specific decimal place, rather than using the exact answer. If you use a rounded answer to verify your solution, you may get a statement that is not exactly equal. The numbers, 12.34 and 12.33 are very close to each other, so Joanne can assume she solved the multistep equation correctly.

Step-by-step explanation:

Facts

just olya [345]1 year ago
3 0

Answer:

Joanne could have rounded her answer to a specific decimal place, rather than using the exact answer. If you use a rounded answer to verify your solution, you may get a statement that is not exactly equal. The numbers, 12.34 and 12.33 are very close to each other, so Joanne can assume she solved the multistep equation correctly.

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If the angle of the depression of this milepost is 24 degrees, we can say the following:

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For the next milepost, the horizontal distance between the balloon and tihs milepost will be (b+1)miles and the angle of depression will be 20 degrees, so we can say the following

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1 =h*(\frac{1}{tan(20)}-\frac{1}{tan(24)})

h=\frac{1}{(\frac{1}{tan(20)}-\frac{1}{tan(24)})}

Resolving, we'll find the value of h

h=1.99 miles

So, the balloon's height above the ground is 1.99miles

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