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Nitella [24]
3 years ago
7

What’s -3+4(-2) 4-2(-5) (-7+3)(4-5x2)

Mathematics
1 answer:
White raven [17]3 years ago
6 0

Answer:

1. -2

2. -10

3. -8

Step-by-step explanation:

1. you add 4 to -3 which is equal to one then you multiply 1 by -2 which is -2

2. 4-2=2 then 2(-5) is equal to -10

3. -7+3=-4 and 4-5 is equal to -1 then you multiply that by 2 which is equal to -2

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Using the distributive property to find the product (y — 4)(y2 + 4y + 16) results in a polynomial of the form y3 + 4y2 + ay – 4y
tatiyna
If you would like to find the value of a in the polynomial, you can do this using the following steps:

(y - 4)(y^2 + 4y + 16) = y^3 + 4y^2 + 16y - 4y^2 - 16y - 64 = y^3 + 4y^2 + ay - 4y^2 - ay - 64

a = 16

The correct result would be 16.
7 0
3 years ago
Read 2 more answers
Find the value of x. If​ necessary, write your answer in simplest radical form. 8 x 2
fenix001 [56]

Answer:

8 · 2 or 8x² or 8x2

Step-by-step explanation:

3 0
3 years ago
Use a separate sheet of paper to solve the system of inequalities by graphing. Use the graph to decide if the point (1, –1) is i
Lena [83]

Answer:

The answer is no though, the point (1,-1) is below both.

Step-by-step explanation:

So the two inequalities are y≤-3x+3 and 3x+8y≥3

With inequalities you have to know a few things.  First, when you graph you may have to use non solid lines.  for instance, if you had x<5, 5 would not be part of the answer because it is only answers less than 5.  so you represent this by making a dashed line that says "you cannot include values on this line".  Second, with algebra, if you multiply both sides by a negative it flips the inequality.  for instance -y > 54 you would multiply (or divide) by -1 and it would change to y < -54.  Third, when graphing an inequality, treat it like an equation and graph the line as if it were said equation(with solid or dashed lines as needed)  then, if it is y > f(x) you shade in the section above the line and y < f(x) shades in below.  The shaded part is your answer basically.  Now lets get into yours.

y≤-3x+3

It is already in the form y = f(x)  so grapht he line 3x + 3 with a solid line since it is y is less than or equal to,  then shade below that line.  

3x+8y≥3

First get it so y is by itself

3x+8y≥3

8y≥3 - 3x

y ≥ 3/8 - 3/8 x

Now grapht his line  with a solid line and shade the area above it.

Now, the shaded area below between y ≥ 3/8 - 3/8 x and  y≤-3x+3 and the lines are your answer, so you need to check if the point (1, -1) is in this shared shaded area or on one of the lines.

The answer is no though, the point (1,-1) is below both.

6 0
3 years ago
The center of a sphere is HURRY ON A TIMER
omeli [17]

Answer:

Center of the Sphere is a fixed point in its interior which is equidistant from each point on sphere. Option 1 is not right because it says center is line segment. Option 3 is right as it says it is fixed and equidistant from point of surface.

Step-by-step explanation:

1 The center of a sphere is

2 a line segment from the center point to the surface of the sphere.

3  a fixed point equidistant from all points on the surface of the sphere.

4  a three-dimensional circle in which all points are equidistant from a fixed point.

5  the same as the base of the sphere

nvm too late :D

the answer is number 3

6 0
3 years ago
3x-6y=18 intercept form
Veronika [31]
3x-6y=18

We need to get y by itself so first, subtract 3x from both sides

-6y= -3x+18

Now divide both sides by -6

y= 1/2x-3
5 0
3 years ago
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