2 years ago

Prove cos a = 5/13 pls solve it and no link pls..........

Mathematics

1 answer:

Scorpion4ik [409]2 years ago

3 0

Answer : The demonstration is below :)

Step-by-step explanation :

We use Pythagoras' theorem :

In the triangle ABC we have :

AB² = AC² - BC² = 15² - 9² = 144 = 12²

In the triangle ABD we have :

DB² = AD² - AB² = 13² - 12² = 5²

cos(a) = BD/AD = 5/13

You might be interested in

will give brainslist!!!!! A local high school has 1250 students in grades 9 through 12. Twenty-eight percent of the students in

UNO [17]

Answer:

175 ride the bus

Step-by-step explanation:

28% of 1250 = 350

350 ÷ 2 = 175

7 0

3 years ago

Read 2 more answers

The volume of a tissue box is 288in3. If the box has a width of 6 inches and it is 4 inches high, how long is the box?

Mrac [35]

Answer:

Step-by-step explanation:

divide the total by 4, when you get your answer, divide that by 6, what is you remainder?

8 0

4 years ago

Elena has 14 pieces of bannana bread. She gives an equal amount of bannana bread to 4 friends. How many peices of bannana bread

Mashutka [201]

You have to divide the 14 pieces amongst 4 friends: 14/4. This can be simplified into a fraction. Since both the numerator and denominator can be divided by 2, you can simplify the fraction to 7/2 and make it into a mixed number 3 1/2, or decimal form 3.5. Each friend got three and a half pieces of banana bread.

6 0

3 years ago

Read 2 more answers

I will give brainliest pls help

rusak2 [61]

Answer:

6) x = 11; y = 11 $\sqrt{2}$