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Step2247 [10]
3 years ago
9

Help me on #13 and please explain

Mathematics
1 answer:
hichkok12 [17]3 years ago
4 0

Answer:

56.4°

Step-by-step explanation:

Let θ = the angle of elevation. Then

tanθ = 199/132 = 1.508

     θ = arctan1.508

     θ = 56.4°

The angle of elevation is 56.4°.

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Which transformation represents the dilation? How can you tell?
spin [16.1K]

Answer:

A dilation is a type of transformation that enlarges or reduces a figure to create a new figure,  If the scale factor is between 0 and 1 the image is a reduction. If the scale factor is greater than 1, the image is an enlargement

3 0
2 years ago
Find the 20th term of the arithmetic sequence 15, 9, 3, -3, ...
RUDIKE [14]

The 20th term is -106

15,9,3,-3,-9,-15,-21,-28,-35,-41,-46 (10) -6 x 10 = -60

-60 + -46

-106

You're just subtracting by 6.

4 0
3 years ago
2x^3y^-3*2x^-1y^3<br> Someone help me with my math.
Virty [35]
The answer is 4x^2

all you gotta do is multiply them like usually but -

(2X^3.)(2X^-1)
4X^(3-1)=4X^2
8 0
2 years ago
If events X and Y are independent, what must be true? Check all that apply. P(Y | X) = 0 P(X | Y) = 0 P(Y | X) = P(Y) P(Y | X) =
lana [24]

if events X and Y are independent, then for intersection we multiply the probability

P(Y∩X)  = P(Y) * P(X)

We know that

P(Y|X) =\frac{P(YintersectionX)}{P(X)}

Now we replace P(Y) * P(X) for  P(Y∩X)

P(Y|X) =\frac{P(Y)*P(X)}{P(X)}

Cancel out P(X)

So P(Y|X) = P(Y)

Like that

P(X|Y) =\frac{P(XintersectionY)}{P(Y)}

Now we replace P(X) * P(Y) for  P(X∩Y)

P(X|Y) =\frac{P(X)*P(Y)}{P(Y)}

Cancel out P(Y)

So P(X|Y) = P(X)

P(Y | X) = P(Y)  and P(X | Y) = P(X)  are true



3 0
3 years ago
Read 2 more answers
Given
Paladinen [302]

Step-by-step explanation:

log(x)  = 2 \\  {10}^{2}  = x \\ x = 100

then for y:

log( y)  =  - 1 \\  {10}^{ - 1}  = y \\ y = 0.1

so:

xy - 100 {y}^{2}  \\  = 100 \times 0.1 - 100 \times  {(0.1)}^{2}  \\  = 10 - 100 \times 0.01 \\  = 10 - 1 \\  = 9

8 0
3 years ago
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