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Fed [463]
3 years ago
6

Rewrite the following polynomial in standard form -x2 + 1 + 2x

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0

Answer:

-5x^4+8x^3-2x+1

Step-by-step explanation:

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Please answer and no explanation needed
rewona [7]
Wait isn’t it 30 or am I reading it wrong?
3 0
2 years ago
X^2 + bx + 49 is a perfect squad trinomial what is one possible value of b?
ddd [48]

a perfect square trinomial, (x + y)² = x² + 2xy + y²

so, if we have the x of the bx, what is left is the b

the expression would have to be (x + 7)², since we have the 49 and the x²

so, what's left: x² + 14x + 49,

b = 14

<em>hope it helps :)</em>

7 0
3 years ago
Find the volume. Answer without units. *<br> 2<br> 4- in<br> 5<br> 3 in<br> 3<br> 16 - in<br> 4
Harman [31]

Answer:

the answer is 221.1

Step-by-step explanation:

8 0
3 years ago
A curve passes through the point ( 0 , 7 ) (0,7) and has the property that the slope of the curve at every point P P is twice th
STatiana [176]

Answer:

The equation for the curve is:

f(x) = 7*e^{2*x}

Step-by-step explanation:

We know that for a curve defined as:

y = f(x)

The slope of the curve at the point x is:

y = f'(x)

where f'(x) = df(x)/dx

Here we know that we have a function that passes through the point (0, 7)

We also know that the slope of the curve at every point is twice the value of the y-coordinate. (remember that the y-coordinate is given by f(x))

Then we have two equations:

f(0) = 7

f'(x) = 2*f(x)

From the shape of the equation, we can assume than this is an exponential equation like:

f(x) = A*e^{k*x}

Replacing that in the second equation, we get:

k*A*e^{k*x} = 2*A*e^{k*x}

From that equation, we can conclude that k = 2

Then:

f(x) = A*e^{2*x}

Now we can use the first equation:

f(0) = 7

With this, we can find the value of A.

f(0) = 7 =  A*e^{2*0}\\7 = A*e^0 = A*1\\7 = A

Then we can conclude that the equation for the curve is:

f(x) = 7*e^{2*x}

6 0
2 years ago
The design for a mural is 16 in. Wide and 9 in. High. What are the dimensions of the largest possible complete mural that can be
Alexandra [31]

Answer:

Largest possible mural that can be painted on the wall is 24 feet wide and 13.5 feet high.

Step-by-step explanation:

Design of a mural is 16 in. wide and 9 in. high.

Dimensions of the wall are 24 ft by 14 ft.

If we enlarge the size of the design along the width the wall, scale factor to be used,

Scale factor = \frac{\text{Width of the wall}}{\text{Width of the design}}

                    = \frac{24}{16}

                    = \frac{3}{2}

With the same scale factor, height of the design will be,

\frac{3}{2}=\frac{\text{Height of the wall used}}{\text{Height of the design}}

\frac{3}{2}=\frac{\text{Height of the wall used}}{9}

Width of the wall used = \frac{3\times 9}{2}

                                     = 13.5 ft

Therefore, largest possible mural that can be painted on the wall is 24 feet wide and 13.5 feet high.  

6 0
2 years ago
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