Answer:
$11.32
Step-by-step explanation:
Greeting Cards = $1.5 x 2 = $3
Wrapping Paper = $2.29 x 3 = $6.87
Ribbon = $1.45 x 1 = $1.45
So now we must add the totals to figure out how much money Barbra spent in total.
$3 + $6.87 + $1.45 = $11.32
Answers:
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Explanation:
Recall that tangent is the ratio of opposite over adjacent
tan(angle) = opposite/adjacent
So for reference angle G, we say,
tan(G) = JH/GJ = 2/1 = 2
We'll treat tan(H) in a similar fashion, but the opposite and adjacent sides swap roles. That means we'll apply the reciprocal to the result above to get 1/2 for tan(H)
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So we have this interesting property where
tan(G)*tan(H) = 2*(1/2) = 1
In general,
tan(A)*tan(B) = 1 if and only if A+B = 90 degrees
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Side note: The side sqrt(5) isn't used at all.
Answer:
The value of x is 75
Step-by-step explanation:
First we need to find the other angle that doesn't have a number in it.
To find the degrees of the other angle we subtract 155 from 180.
180 - 155 = 25
Now we have to find the value of x. Add 80 and 25 together to get 105. A triangle is going to be 180 degrees. Subtract 105 from 180.
180 - 105 = 75
Now we will add 80, 25, and 75 to check our work.
80+25+75 = 180
Since triangle ADE is similar to triangle ABC and the scale factor is 2, the following relation must be fulfilled:
The, by substituting the given information, we have
By multiplying both sides by x+2, we get
which gives
Then, by subtracting 4x to both sides, we have
and by adding 8 to both sides, we obtain
then, x is given by
Then, by substitutn
Wouldn't this be science because it's dealing with temperature?
