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postnew [5]
3 years ago
15

Please help 15 points and will give brainliest

Mathematics
1 answer:
Andrej [43]3 years ago
8 0

Answer:

Think it is A as 4x20=80.

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Need to find the direction angle for each vector. #10 and #12 please!
crimeas [40]

Answer:

10)  - 45 degrees

12)  0 degrees

Step-by-step explanation:

10)

Find the x and y components that define the vector that joins C with D:

x-component: -4 - (-8) = - 4 + 8 = 4

y-component:  4 - 8 = -4

use the tangent function to find the angle \theta:

tan(\theta)=\frac{y-comp}{x-comp}=\frac{-4}{4}  = -1\\\theta = -45^o

12)

Find the x and y components that define the vector that joins A with B:

x-component: 7 - 4 = 3

y-component:  - 1 - (-1) = -1 + 1 = 0

use the tangent function to find the angle \theta:

tan(\theta)=\frac{y-comp}{x-comp}=\frac{0}{3}  = 0\\\theta = 0^o

5 0
3 years ago
The Positions of two divers from the water's surface after a dive are shown: Ray: -15 feet Henry: - 20 feet Which inequality exp
Effectus [21]

Step-by-step explanation:

Henry is deeper in the water than Ray because -20 < -15

Hope it helps <3

7 0
3 years ago
The output is the cube of the input
MakcuM [25]
The output is the cute of the input is written as y = x³.
5 0
3 years ago
Max is drawing plans for a garden, measured in feet, which is shown below on the coordinate plane. Max has two vertices of the g
Stella [2.4K]

Answer:

The other two vertices are (4 , -2) and (4 , 2)

4 0
2 years ago
Read 2 more answers
Make the indicated trigonometric substitution in the given algebraic expression and simplify(x-25)/x = Sin y0
Strike441 [17]

Answer:

x = 25 /(1 − sin(y )) and y ≠ π/2  +2πn

Step-by-step explanation:

Let's solve and simplify for x,

(x − 25 )/ x  = sin(y)

Let's multiply both sides by x

((x − 25 )/x) *x= sin(y)*x

Then,

x − 25 = sin(y) * x

Let's add 25 to both sides

x − 25 + 25 = sin(y) * x + 25

If simplify again,

x = sin(y) * x + 25

Then we need subtract sin y x from both sides

x − sin(y) * x = sin (y)* x + 25 − sin (y)* x

It will equal:

x − sin (y)* x = 25

Factor x−sin(y) x: x(1−sin(y) ), then we get:

x (1 − sin(y)) = 25

Finally we need divide both sides by 1 − sin(y) ; y ≠π /2 + 2πn

And it will give us this equation:

x = 25 /(1 − sin(y )) and y ≠ π/2  +2πn

3 0
3 years ago
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