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Tatiana [17]
3 years ago
15

Tara is using matrix multiplication to find image points of a translation. She is translating the image 2 units left and 4 units

up. Which should be her first matrix?
Mathematics
1 answer:
Ahat [919]3 years ago
7 0
Assuming that this is just on a 2-D coordinate plane, we must convert the expressions on to a 3-D plane since translation cannot be done on a 2-D plane. This is done by adding a dummy coordinate that does not change. Let us use "1" for this case.

Matrix:
| 0 0 -2 |(x) = (x - 2)
<span>| 0 0 4  |(y) = (y + 4)
</span><span>| 0 0 1  |(1) = 1</span>
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In ELECTRONICS, the total resistance to the flow of electricity in a circuit is called the impedance, Z. Impedance is represente
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Total impedance of circuit is Z1 + Z2

Here it is important that real numbers we sum with real numbers and complex numbers with complex numbers

Let Zs represent total impedance.

Zs = Z1 + Z2 = 3 + 4i + 5 - 2i = 3 + 5 + 4i - 2i = 8 + 2i

Answer is :

8+2i
8 0
2 years ago
In a zoo there are 17 more monkeys than lions and 30 more lizards than lions. If there were 151 monkeys, lions and lizards in to
kvv77 [185]
If the amount of monkeys is m, lions is a, and lizards is b, then a+b+m=151, 17+a=m (since there are 17 more monkeys than lions), and 30+a=b. Substituting those values in (17+a=m and 30+a=b), we have 30+17+a+a+a=151=47+3a. Subtracting 47 from both sides, we get 104=3a. Next, we can divide both sides by 3 to get 104/3=a (the number of lions), 104/3+17=the number of monkeys, and 104/3+30=the number of lizards. Somehow we end up with a fraction (not a whole number), so there are 2/3rds of monkeys floating around using this logic.


8 0
3 years ago
All sides are congruent in quadrilateral ABCD below.
emmainna [20.7K]

Answer:

rhombus; Measure of angle B = 70 degrees

Step-by-step explanation:

The shape is a rhombus. Angle B and angle A are supplementary, so they add up to 180 degrees.

110 + B = 180

B = 180 - 110

B = 70

It is a rhombus because all sides are equal.

3 0
3 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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Identify the equation of the circle that has its center at (-3, -4) and passes through the origin.
Allushta [10]

The equation of a circle:

(x-h)^2+(y-k)^2=r^2

(h, k) - a center

r - a radius

We have:

The center (-3, -4) → h = -3 and k = -4.

The radius is equal the distance between the center of the circle and the origin.

The formula of a distance between two points:

A(x_A,\ y_A),\ B(X_B,\ y_B)\\\\d_{AB}=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}

Substitute

(-3,\ -4),\ (0,\ 0)\\\\d=\sqrt{(0-(-3))^2+(0-(-4))^2}=\sqrt{9+16}=\sqrt{25}=5

therefore r = 5.

Answer:

(x-(-3))^2+(y-(-4))^2=5^2\\\\(x+3)^2+(y+4)^2=25

4 0
3 years ago
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