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levacccp [35]
3 years ago
6

Solve the following polynomial expression: (5x^4-9x^3+7x-1) + (-8x^4+4x^2-3x+ 2) - (-4x^3+5x-1)(2x -7)

Mathematics
1 answer:
Stella [2.4K]3 years ago
3 0

Answer:

Check photo

Step-by-step explanation:

It is is important to be really careful with negative signs, which is why I multiple the last two expressions together and then multiple through with the negative. It makes it a lot easier.

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A single​ 6-sided die is rolled twice. find the probability of getting a 55 the first time and a 11 the second time. express the
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3 years ago
The coordinates of the vertices of △ABC are A(−4, 6) , B(−2, 2) , and C(−6, 2) .
vfiekz [6]

Answer:

translation 2 units left ; reflection across the y-axis

Step-by-step explanation:

The y-coordinates of the points do not change from the pre-image to the image.  This means there is no translation down (this would add or subtract to the y-coordinates) and no reflection across the x-axis (this would negate the y-coordinates).

This leaves us with a translation 2 units left and a reflection across the y-axis.

The translation 2 units left adds 2 to the x-coordinates, and the reflection across the y-axis negates the x-coordinates.  If we add 2 first, the coordinates would be (-4+2, 6) = (-2, 6); (-2+2, 2) = (0, 2); and (-6+2, 2) = (-4, 2).

Negating each of these would give us (2, 6); (0, 2); and (4, 2).  These are the desired image coordinates.

8 0
3 years ago
Read 2 more answers
Please answer quick!!
timurjin [86]

Answer:

Sorry whats your question.

8 0
3 years ago
Find the value of x using trig please .....
iren [92.7K]

Answer:

8.090169944 or rounded 8.1

Step-by-step explanation:

Use SOH CAH TOA

Look at x and where it is and what you have.

First thing is to get an angle to use, 36, then to set up your equation.

___(36)=___

Figure out what you have.

You have the hypotonouse, 10, and need the adjacent,x, so you use the equation that involves H for hypotonouse and A for adjacent.

You set up your equation using COS, as you are using CAH.

Cos(36)=x/10

X is over ten sure to CAH C-cos A-adjacent and H-hypotonouse

Switch it around to make it equal to x

10*Cos(36)=x

You input it into your calculator. [10] [COS] [36] [ENTER] and you get the answer.

Round however is needed.

7 0
3 years ago
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