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3 years ago

2x^5-3x^4-5x^3-15x^2-207x+108zeros: 3ifind the remaing zeros

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

4 0

The real solutions are { $x=-3, x= \frac{1}{2} , x=4$ }.

The imaginary solutions are { $x=-3i, x=3i$ }.

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Using appropriate properties, find the value of 249² - 248²

Lady_Fox [76]

Answer:

$\boxed{\bold{\huge{\boxed{497}}}}$

Step-by-step explanation:

=> $\sf 249^2 - 248^2$

Using Formula $\sf a^2 - b^2 = (a+b)(a-b)$

Where

a = 249

b = 248

=> $\sf (249+248)(249-248)$

=> $\sf (497)(1)$

=> 497

3 0

3 years ago

Please help I'm almost done the test and need this and one other question

PolarNik [594]

Answer:

$z=68$

Step-by-step explanation:

Use the formula $180\times(n-2)$ to find the sum of the angles in a polygon, given n sides. This formula tells us the angles of this pentagon must add to 540 ( $180\times(5-2)=540$ ).

So, we can setup an equation:

$70+2z+11+119+z+2z=540$

Solve for z:

$200+5z=540$ Combine like terms

$5z=340$ Subtract 200

$z=68$ Divide by 5

Therefore, the value of z = 68.

6 0

3 years ago

Hey, just trying finish up some math before school ends. What's the answer to 3n+2(-2n-1) ? Thanks!

Ksju [112]

Answer:

-n - 2

Step-by-step explanation:

3n+2(-2n-1)

= 3n -4n -2

= -n - 2

3 0

3 years ago

AB:BC is 3:4. Solve for x.

Sphinxa [80]

I got B but I'll show you how I got that answer.

Let's look at AB and BC. AB = 3 and BC = 4.
3/4 = 0.75

On the triangle, AB = 90. And BC = 10x - 20. We need to solve for x and prove that AB/BC = 0.75.

Let's start with Choice A.

10(11) - 20 = 90.

AB = 90
BC = 90.

90/90 = 1. It doesn't equal 0.75. Meaning this answer is wrong.

Now let's look at Choice B.

10(14) - 20 = 120.

AB = 90
BC = 120

90/120 = 0.75

So, 3:4 = 90:120 making Choice B the correct Answer. Let me know if this is correct

6 0

3 years ago

The graph shows the function <img src="https://tex.z-dn.net/?f=%20y%20%3D%20%7Bq%7D%5E%7Bx%7D%20" id="TexFormula1" title=" y

Alex777 [14]

Answer:

Step-by-step explanation:

Graph in the picture represents,

y = qˣ

a). Point of intersection of the curve with the y-axis → (0, 1)

b). Since, this graph passes through (1, 4)

By substituting values in the equation,

4 = q¹

q = 4

c). Value of y when x = 10,

$y=4^{10}$

y = 1048576

5 0

2 years ago