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vladimir2022 [97]
3 years ago
15

In the accompanying diagram of parallelogram ABCD, LaTeX: m\angle A=x+17 m ∠ A = x + 17 and LaTeX: m\angle C=2x-4 m ∠ C = 2 x −

4 . Find the value of x.

Mathematics
1 answer:
jek_recluse [69]3 years ago
3 0
Answer:
x = 21

Explanation:
In a parallelogram, each two opposite angles are equal.

In the given parallelogram ABCD, we can note that angles A and C are opposite angles. This means that they have equal measures.

Therefore:
∠A = ∠C
x + 17 = 2x - 4
17 + 4 = 2x - x
x = 21

We can check:
angle A = 21 + 17 = 38°
angle C = 2(21) - 4 = 38°
They are equal

Hope this helps :)

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Identify the number of solution or zeros.<br><br><br> x^5 - 5x^2 + 6= 0
RideAnS [48]

Answer:

5

Step-by-step explanation:

The given equation is of the 5th order.  Thus, we can expect 5 solutions/zeros.

3 0
3 years ago
What is the vertex of y=x^2+4x+3
AnnyKZ [126]

Answer:

(-2, -1)

Step-by-step explanation:

This is a quadratic equation in standard form, and a = 1, b = 4 and c = 3.

The x-coordinate of the vertex is given by the formula

        -b                                                                         -4

x = --------- which here has the numerical value x = -------- = -2

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Finally, we evaluate y=x^2+4x+3 at x = -2 to find the y-coordinate of the vertex:

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7 0
3 years ago
Three times the sum of the numbers x and 5 is 21.
MrRissso [65]
3 (x+5)=21 is the answer
7 0
3 years ago
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masha68 [24]

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-i

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i^0=1

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i^4=1

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So i^(23)=i^3=-i.

i^(23)=i^(5*4+3)=(i^4)^5 * (i^3)=(1)^5 * (-i)=1(-i)=-i.

8 0
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netineya [11]
I think the answer is

Q (2,-1)
S (-6,5)
7 0
3 years ago
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