3 years ago

In ABC,if sin A=4/5 and tan A=4/3, then what I s cos A?

1 answer:

5 0

Cos(A) will be 3/5 Cos(A) is adjacent/hypotenuse. So here we have sin(A)=opp/hyp which is 4/5 and tan(A)=opp/adj which is 4/3. So cos(A) is adj./hyp and knowing the previous 2 terms of sin(A) and cos(A), you can go ahead and find Cos(A). So cos(A) is 3/5

You might be interested in

Please help me with this :)

skad [1K]

Mathspapa a website that will help.

6 0

3 years ago

Joanna earns money by mowing lawns for the summer.She offers two payment plans:Plan 1:Pay $250 for the entire semester Plan 2:Pa

AnnZ [28]

9514 1404 393

Answer:

yes

Step-by-step explanation:

The payments 1, 2, 4, ... have a common ratio of ...

r = 2/1 =4/2 = 2

This is characteristic of a geometric sequence.

The payments of plan 2 form a geometric sequence.

8 0

3 years ago

find the measure of the missing side of a right triangle to the nearest tenth if one leg is 36cm in the hypotenuse is 39 cm

4vir4ik [10]

A^2+36^2=39^2
a^2+1296=1521
a^2=225
a=15

5 0

3 years ago

Write an equation for each sentence and then solve.

posledela

Answer:

6*12=72

Step-by-step explanation:

Find the factors of 72 and see which ones are double it's pair.

4 0

3 years ago

I have a coil of steel that is 48 inches wide. The weight of the coil is 10.800 kegs. If I cut the coil a width of 0.5 inches ho

MakcuM [25]

0.1125 kg

Step-by-step explanation:

Step 1:

Let us assume that 48 inches of coil of steel weighs 10.800 kg.

We have to find the weight of 0.5 inch coil.

Step 2:

In this problem we assume that it is given in direct relationship.

Therefore, Problem becomes

48 inches weigh 10.8 kg

0.5 inches weigh X kg

(48 / 0.5) = ( 10.8 / X)

X = (10.8 × 0.5) / 48

X = 0.1125 kg

3 0

3 years ago