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dezoksy [38]
3 years ago
8

In ΔDEF, the measure of ∠F=90°, the measure of ∠D=49°, and DE = 3.1 feet. Find the length of FD to the nearest tenth of a foot.

Mathematics
1 answer:
Umnica [9.8K]3 years ago
6 0

Answer:

2.0

Step-by-step explanation:

cos 49 = FD/3.1

FD = 3.1 cos 49 = 2.033 = 2.0

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3 0
4 years ago
Keiko, Dale, and Jose have a total of $107 in their wallets. Jose has 3 times what Dale has. Keiko has $8 less than Dale. How mu
olga2289 [7]

Answer:

Amount in Dale's wallet :$23

Amount in Keiko's wallet :$15

Amount in Jose's wallet:  $69

Step-by-step explanation:

Let the money in Dale's wallet be $X

Given Jose has 3 times money than what Dale has.

if Dale has $X then Jose has $3X.

Also Keiko has $8 less than Dale

if Dale has $X then Keiko has $X - $8

Also Keiko, Dale, and Jose have a total of $107 in their wallets.

Writing this in form of mathematical expression with their value of money in terms of X we have given below equation.

$X + $3X + $X - $8 = $107

=> $5X - $8 = $107

=> $5X  = $107 + $8 = $115

=> X = $115/5 = $23.

Amount in Dale's wallet = $X   = $23

Amount in Keiko's wallet = $X - $8 = $23 - $8 =$15

Amount in Jose's wallet = $3X = $3*23 = $69

6 0
3 years ago
A. Graph the function ????(x) = 3 cos(2x) + 1 between 0 and 2????.
almond37 [142]

Answer:the awnser is A i beleive not 100% sure

Step-by-step explanation:

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4 years ago
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