Approximate the real zeros of f(x)=2x^4-x^3+x-2 to the nearest tenth. a. , 1 c. 0, 1 b. , d. , 0 Please select the best answer from the choices provided

Answers

Answer 1

Answer: ANSWER

-1.0, 1.0

EXPLANATION

The given polynomial function is

$f(x) = 2 {x}^(4) - {x}^(3) + x - 2$

According to the Rational Roots Theorem, the possible roots of this function are;

$\pm1,\pm (1)/(2)$

We now use the Remainnder Theorem to obtain;

$f(1) = 2 {(1)}^(4) - {(1)}^(3) + 1 - 2$

$f(1) = 2 - 1+ 1 - 2 = 0$

$f( - 1) = 2 {( - 1)}^(4) - {( - 1)}^(3) - 1 - 2$

$f( - 1) = 2 + 1 - 1 - 2 = 0$

But;

$f( (1)/(2) ) = - 1.5$

$f( - (1)/(2) ) = - 2.25$

Since f(1)=0 and f(-1)=0, the real zeros to the nearest tenth are:

-1.0 and 1.0

Answer 2

Answer:

Answer:

Step-by-step explanation:

Just took the test

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Answers

Answer:

3: 4 2/5

4: 3

Step-by-step explanation:

#3 Work:

-(3 + 1/5) + 7 + 3/5

-3 - 1/5 + 7 + 3/5

(-3 + 7) + (-1/5 + 3/5)

4 + 2/5

Answers: 4 2/5

#4 Work:

-5 + 2 - 8 + 14

Answer: 3

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There are 16 girls and 20 boys in the school band what is the ratio in the simplest form of girls to boys ?

Answers

The ratio in simplest form is 4:5.

What is ratio?

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

here, we have,

There are 16 girls and 20 boys in the school band

so, the ratio is,

16/20,

divide both by 4

and you get 4/5

Hence, the ratio in simplest form is 4:5.

To learn more on ratio click:

brainly.com/question/13419413

#SPJ2

16/20, divide both by 4 and you get 4/5 as the ratio in simplest form

Graph the equation and identify the y- intercept y=1/4 x

Answers

y intercept is where th line crosses the y axis or when x=0

set x=0

y=1/4(0)
y=0

y intercept is 0 aka (0,0)

to graph, we need slope
subsitute poits
x=4, y=1
x=8,y=2
graph points (0,0), (4,1), (8,2)

What is the value of x when 2x + 3 = 3x – 4 ?
A. –7
B. -1/5
C. 1
E. 7

Answers

$2x + 3 = 3x - 4\n 3x-2x=3+4\n x=7$

$2x+3=3x-4\ \ \ \ /-3\n2x+3-3=3x-4-3\n2x=3x-7\ \ \ \ /-3x\n2x-3x=3x-3x-7\n-x=-7\ \ \ \ /:(-1)\nx=7\n\nAnswer:E$

Help please last one

Answers

Okay, this is really easy:) He goes 3/8 miles and 1 and 3/8 miles. to add this together you just go across the top. Discard the 1 for a couple of seconds. so you have 3/8 + 3/8. Now go across the top so you get 6/8. simplify that, (divide by a common number, don't know if you know that or not) so, 2 in this case. you get 3/4. Your answer is 1 and 3/4. Hope this helps and isn't ridiculously confusing:)

Simple....

you have $(3)/(8)$ and $1 (3)/(8)$

It's asking you how much Bobbi skated altogether.

So...just add...

to make it easy...see this way...

$1 (3)/(8)$
+
$(3)/(8)$

You can see it's just $(3)/(8) + (3)/(8)$

= $(6)/(8)$

Simplifying it...

= $(3)/(4)$

Thus, your answer... $1 (3)/(4)$

(A)

Dante earned $7.25 for each hour he worked. If he worked 8 hours a week for 4 weeks, how much did he earn?