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3 years ago

HELP BRAINLIEST! I think its none of the above

Mathematics

2 answers:

mamaluj [8]3 years ago

7 0

Answer:

180 degrees

Explanation:

So if it was 90 degrees it would be the same thing just fliped. 180 means that it did a half a rotaion so it would be the mirrored of the original object. That is what we see the second figure is mirrored of the other. 90 degrees also would be different.

<h2>Answer: 180 degrees</h2>

dolphi86 [110]3 years ago

4 0

Answer:

It's 180 degree rotation.

Step-by-step explanation:

It's mirrored, and a circle is 360 degrees, so half of that is 180. The triangle made a 180 turn to become a mirror reflection, therefore, it's 180 :) Hope this helps please mark brainliest <3

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A broker has calculated the expected values of two different financial instruments X and Y. Suppose that E(x)= $100, E(y)=$90 SD

Sveta_85 [38]

Expectation is linear, meaning

E(a X + b Y) = E(a X) + E(b Y)

= a E(X) + b E(Y)

If X = 1 and Y = 0, we see that the expectation of a constant, E(a), is equal to the constant, a.

Use this property to compute the expectations:

E(X + 10) = E(X) + E(10) = $110

E(5Y) = 5 E(Y) = $450

E(X + Y) = E(X) + E(Y) = $190

Variance has a similar property:

V(a X + b Y) = V(a X) + V(b Y) + Cov(X, Y)

= a^2 V(X) + b^2 V(Y) + Cov(X, Y)

where "Cov" denotes covariance, defined by

E[(X - E(X))(Y - E(Y))] = E(X Y) - E(X) E(Y)

Without knowing the expectation of X Y, we can't determine the covariance and thus variance of the expression a X + b Y.

However, if X and Y are independent, then E(X Y) = E(X) E(Y), which makes the covariance vanish, so that

V(a X + b Y) = a^2 V(X) + b^2 V(Y)

and this is the assumption we have to make to find the standard deviations (which is the square root of the variance).

Also, variance is defined as

V(X) = E[(X - E(X))^2] = E(X^2) - E(X)^2

and it follows from this that, if X is a constant, say a, then

V(a) = E(a^2) - E(a)^2 = a^2 - a^2 = 0

Use this property, and the assumption of independence, to compute the variances, and hence the standard deviations:

V(X + 10) = V(X) ==> SD(X + 10) = SD(X) = $90

V(5Y) = 5^2 V(Y) = 25 V(Y) ==> SD(5Y) = 5 SD(Y) = $40

V(X + Y) = V(X) + V(Y) ==> SD(X + Y) = √[SD(X)^2 + SD(Y)^2] = √8164 ≈ $90.35

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4 years ago

If f(x)= x2 and g(x)= x + 6, find g(fo)).

eimsori [14]

Given:

The functions are

$f(x)=x^2$

$g(x)=x+6$

To find:

The value of g(f(0)).

Solution:

We have,

$f(x)=x^2$

Putting x=0, we get

$f(0)=0^2$

$f(0)=0$

Now,

$g(f(0))=g(0)$ $[\because f(0)=0]$

$g(f(0))=0+6$ $[\because g(x)=x+6]$

$g(f(0))=6$

Therefore, the value of g(f(0)) is 6 and the correct option is B.

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3 years ago

The function f(x) is to be graphed on a coordinate plane.

gregori [183]

Answer:

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2 years ago

TRP = QSP if T = 32, R=46, and P = 10x+6 find S

djverab [1.8K]

Answer:

Step-by-step explanation:

Since the triangles are congruent then corresponding angles are congruent.

∠ R and ∠ S are corresponding angles and congruent, thus

∠ S = ∠ R = 46° → C

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Assume that in a batch of 34 defective items there are 22 with major defects and 23 with minor defects.

astraxan [27]

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4 years ago