All categories

3 years ago

If cscØ=8/7, which equation represents cotØ?

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

3 0

Answer:

2nd one

Step-by-step explanation:

I believe it s number 2 the scevjj

You might be interested in

Evaluate. X/4-y^2 + 3 1/4 x= if 12 and y=3

Varvara68 [4.7K]

Answer:

− 17/4 or −4.25

hope it helps

7 0

3 years ago

Kristen is 64 inches tall, and she stands 12 feet away from a streetlight. If she casts an 82-inch-long shadow, how tall is the

o-na [289]

Answer:

176.39 inches or

14.70 feet

Step-by-step explanation:

Consider the right triangle made by Kristen, ground and shadow.

This triangle has one leg as 64 inches.

Next consider the right triangle formed by street light, ground upto shadow tip.

The two triangles have common angle of elevation and also another angle as 90 degrees.

Hence the two triangles would be similar

Also if A is the angle made by hypotenuse of both triangles with the ground we have

$tanx=\frac{64}{82}$

This value also equals by bigger triangle as

$tanx=\frac{h}{82+12(12)}=\frac{h}{226}$

From these two we get

h = height of street light = $\frac{226(64)}{82} =176.39$

6 0

3 years ago

Factor : 21y^2 + 105y

expeople1 [14]

Gcf first
21y(y+5)
solutions are 0,-5

7 0

3 years ago

Read 2 more answers

There are 16 cookies and 4 friends. How many cookies will each friend will have?

Anestetic [448]

Each friend will have 4 cookies.

8 0

3 years ago

A food manufacturer uses an extruder (a machine that makes bite size cookies)that yields revenue for the firm at a rate of $200

julsineya [31]

Answer:

$1300

Step-by-step explanation:

The extruder yields a revenue of $200per hour

Y denotes the number of breakdown per day.

The daily revenue generated is given as

R = 1600 - 50Y^2

We have an average of 2 breakdown per day

Lamda = 2

Represent lamda as β

E(Y) = β

E(Y(Y-1)) = β^2

E(Y^2) = E[Y(Y-1)] + E(Y)

= β^2 + β

E(R) = E(1600 - 50Y^2)

= 1600 - 50E(Y^2)

= 1600 - 50(β^2 +β)

Recall that β = lamda = 2

= 1600 - 50(2^2 + 2)

= 1600 - 50(4+2)

= 1600 - 50(6)

= 1600 - 300

= 1300

$1300

The expected daily revenue of the extruder is $1300

3 0

3 years ago