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soldier1979 [14.2K]
3 years ago
11

PLEASE HELP! NO LINKS! I only need help on letter d!!

Mathematics
1 answer:
IRINA_888 [86]3 years ago
8 0
$242.46.............
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If the given values in a right triangle are cos A =
Vlad1618 [11]
See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²---->  equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2

5 0
3 years ago
Math question please show work
garik1379 [7]

You calculate this using the Cosine Rule

x^2 = 60.5^2 + 226^2 - 2*60.5*226 cos 39

= 33484.42

x = 182.98

He threw the ball approximately 183 feet.

7 0
2 years ago
4(−5z+2)+(−6) using distributive property
amid [387]

Answer:

Step-by-step explanation:

-20z+8+(-6)

-20z+2

7 0
3 years ago
Read 2 more answers
I really do need help solving this equation
strojnjashka [21]

Answer:

D

Step-by-step explanation:

3/5 = 0.6

75% = .75

0.8, 0.75, 0.6, 0.56

8 0
3 years ago
Need help on this please
KonstantinChe [14]

Answer:

x^{2} + (y-5)² = 8

7 0
2 years ago
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