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3 years ago

5

Kathy talked with two friends through instant messaging on the Internet she talk to Disney for A half of an hour and to Leslie f

or 1/3 of an hour how much time did Kathy spend talking to instant messaging

2 answers:

Margaret [11]3 years ago

7 0

The answer is 1/2 I did all the work and it ended up there

marishachu [46]3 years ago

4 0

Answer:

the anwer is 1/2

Step-by-step explanation:

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∠A and ∠B are complementary angles.

iogann1982 [59]

Cos 52 = 0.6157

sin 42 = cos 48 = 2/3 (because 42 + 38 = 90 - complementary angles)

if tan 20,5 = 3/8 then tan 69.5 wil = 1 / 3/8 = 8/3

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3 years ago

Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. How far did elisabeth escape in in 1 hour?

sergeinik [125]

$Question$

Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. How far did elisabeth escape in in 1 hour?

Answer:

The Correct Answer is $\frac{8}{9}$

Complete the multiplication and the equation becomes

$\frac{2}{9}$ + $\frac{2}{3}$ = ?

The two fractions now have like denominators so you can add the numerators.

$\frac{2+6}{9}$ = $\frac{8}{9}$

Therefore, The Answer Is $\frac{8}{9}$

Hope this helps!

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2 years ago

using your age to the nearest whole number and ignoring leap years how many seconds have you been alive

vfiekz [6]

Answer:

409968000

Step-by-step explanation:

13 rounded years is equal to 409968000 seconds

6 0

2 years ago

A bicycle race follows a triangular course. The 3 legs of the race are, in order, 2.3 km, 5.9 km, 6.2 km. Find the angle between

Bess [88]

Answer:

About 71.77 degrees

Step-by-step explanation:

The starting leg is 2.3 km and the finishing leg is 6.2 km.

Using the law of cosines C^2 = A^2 + B^2 -2AB*cos(c) where A = 2.3 km, B = 6.2 km, C = 5.9 km, and angle c is the opposite angle to side C, we get:

5.9^2 = 2.3^2 + 6.2^2 -2(2.3)(6.2)*cos(c)

cos(c) = -(5.9^2 - 2.3^2 - 6.2^2)/(2*2.3*6.2)

c = 71.77 degrees

3 0

2 years ago

Read 2 more answers

Help! I have to get this done by tomorrow morning!!!!!

Oksanka [162]

$\frac{1}{5} +\frac{1}{5}+\frac{1}{5}+\frac{1}{5}=\frac{4}{5}$

6 0

2 years ago

Read 2 more answers