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Sav [38]
3 years ago
9

Simplify. 2x5 - 6x2 + 4x4y/2x

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
3 0

Answer:

B

Step-by-step explanation:

\frac{2x^{5}-6x^{2}+4x^{4}y}{2x}=\frac{2x^{5}}{2x}-\frac{6x^{2}}{2x}+\frac{4x^{4}y}{2x}\\\\=x^{4}-3x+2x^{3}y

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. Find the sum of the following polynomials.
Anvisha [2.4K]

Answer ad Step-by-step explanation:

<em><u>1. Adding 10mn and -15mn.</u></em>

10mn + -15mn = <u>-5mn</u>.

<em><u>2. Adding </u></em>-7a^{2}<em><u> and </u></em>-8a^{2}<em><u>.</u></em>

-7a^{2} + -8a^{2}  = -15a^{2}.

<em><u>3. Adding 6(x + 3) and -7(x + 3).</u></em>

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6x + 18 + -7x - 21

<u>x - 3.</u>

4. Adding ?

<em><u>5. Adding 0.5xyz and 1.5 xyz.</u></em>

0.5xyz + 1.5xyz = <u>2xyz.</u>

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<em><u>#teamtrees #PAW (Plant And Water)</u></em>

6 0
3 years ago
The radius of a circle is 4 in what is the diameter and the circumference?
Anna007 [38]

Answer:

diameter is 8 circumference is 25.12

Step-by-step explanation:

3 0
3 years ago
55745 rounded to the nearest thousand
photoshop1234 [79]
55745 rounded to the nearest thousand is 56,000.
4 0
3 years ago
Read 2 more answers
3x-y=5 write the linear equation in slope-intercept form given
maxonik [38]

Answer:

y = -3x - 5

Step-by-step explanation:

3x - y = 5

+3x      +3x

-1y = 3x + 5

----  -----   -----

-1       -1     -1

y = -3x - 5


6 0
3 years ago
Consider the points A(5, 3t+2, 2), B(1, 3t, 2), and C(1, 4t, 3). Find the angle ∠ABC given that the dot product of the vectors B
Vilka [71]

Answer:

66.42°

Step-by-step explanation:

<u>Given:</u>

A(5, 3t+2, 2)

B(1, 3t, 2)

C(1, 4t, 3)

BA • BC = 4

Step 1: Find t.

First we have to find vectors BA and BC. We do that by subtracting the coordinates of the initial point from the coordinates of the terminal point.

In vector BA B is the initial point and A is the terminal point.

BA = OA - OB = (5-1, 3t+2-3t, 2-2) = (4, 2, 0)

BC = OC - OB = (1-1, 4t-3t, 3-2) = (0, t, 1)

Now we can find t because we know that BA • BC = 4

BA • BC = 4

To find dot product we calculate the sum of the produts of the corresponding components.

BA • BC = (4)(0) + (2)(t) + (0)(1)

4 = (4)(0) + (2)(t) + (0)(1)

4 = 0 + 2t + 0

4 = 2t

2 = t

t = 2

Now we know that:

BA = (4, 2, 0)

BC = (0, 2, 1)

Step 2: Find the angle ∠ABC.

Dot product: a • b = |a| |b| cos(angle)

BA • BC = 4

|BA| |BC| cos(angle) = 4

To get magnitudes we square each compoment of the vector and sum them together. Then square root.

|BA| = \sqrt{4^2 + 2^2 + 0^2} = \sqrt{20} = 2\sqrt{5}

|BC| = \sqrt{0^2 + 2^2 + 1^2} = \sqrt{5}

2\sqrt{5}\sqrt{5}\cos{(m\angle{ABC})} = 4

10\cos{(m\angle{ABC})} = 4

\cos(m\angle{ABC}) = \frac{4}{10}=\frac{2}{5}

m\angle{ABC} = cos^{-1}{(\frac{2}{5})}

m\angle{ABC} = 66.4218^{\circ}

Rounded to two decimal places:

m\angle{ABC} = 66.42^\circ

3 0
2 years ago
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