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3 years ago

Please answer a soon as possible!!!

Mathematics

2 answers:

jonny [76]3 years ago

4 0

Answer:

The answer is option B!

y-step explanation:

HACTEHA [7]3 years ago

3 0

The answer is a. -5v^2/12t^2u^2

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Which of the following is a root of the polynomial function below

VMariaS [17]

Answer:

A) 2 + i

Step-by-step explanation:

F(x) = x^3 - 3x^2 + x + 5

0 = x^3 - 3x^2 + x + 5

0 = (x+1)(x^2 - 4x + 5)

Great, now we can separate these two parenthesis expressions because of the Zero Product Property. Start with the simple one:

0 = x + 1

x = -1

We have our first real root! But it doesn't look like that's one of the answer choices, so move on to the other expression:

0 = (x^2 - 4x +5)

This expression can't be factored, so we will use the quadratic formula (which is x = $\frac{-b+-\sqrt{b^{2}-4ac } }{2a}$ ).

First solve for the positive part:

= (4 + sqrt(16-20)) / 2

= 4 + sqrt(-4) / 2

= 4 + 2i / 2

= 2 + i

Then for the negative part:

= (4 - sqrt(16-20)) / 2

= 4 - sqrt(-4) / 2

= 4 - 2i / 2

= 2 - i

2 + i is answer choice A! Our other roots, 2 - i and -1, aren't answer choices.

8 0

3 years ago

Help now asap plsssssss

tatuchka [14]

Answer: the answer is C

Step-by-step explanation: I hope this helps a little :)

3 0

2 years ago

a roller coaster can take 24 riders in a single trip. 72 people went through the line to ride the roller coaster. how many trips

bulgar [2K]

Answer:

3 trips

Step-by-step explanation:

We would divide the amount of riders the roller coaster could take in a single trip by the total number of riders to determine how many trips it can make.

max amount of riders/total riders

72/24 = 3

Hence, the rollercoaster made 3 trips.

5 0

3 years ago

Use quadratic regression to find the

Travka [436]

Answer:

$y= -x^{2} -2x+15$

Step-by-step explanation:

$y= -x^{2} -2x+15$

7 0

2 years ago

What is the area of the composite figure? (use 3.14 for pi). Explain how you arrived at your answer. Please round to the nearest

maksim [4K]

The area of the given diagram is 29.817 square centimeters. The given diagram is combination of rectangle and semi circle.

Step-by-step explanation:

The given is,

Given diagram is combination of Rectangle and Semi circle.

Step:1

Res the attachment,

Area of given diagram = Area of A + Area of B..............(1)

Step:2

For A,

The A section in the given diagram is semi circle,

Diameter of semi circle = Total distance - ( 2+3)

( ∵ 2, 3 are top distance in the given diagram)

$= 10 - 5$

Diameter, d = 5 cm

Radius, $r = \frac{d}{2}$

$r = \frac{5}{2}$

r = 2.5 cm

Area, $A_{A} = \frac {\pi r^{2} }{2}$ ........................(2)

$A_{A} = \frac {\pi (2.5)^{2} }{2}$

$= \frac {\pi ( 6.25) }{2}$

$= \frac{19.63}{2}$

$A_{A} = 9.8174 cm^{2}$

Step:3

For B,

Area of rectangle is,

$A_{B} =lb$ .....................(3)

Where, l - Length = 10 cm

b - Width = 2 cm

Equation (3) become,

$= (10)(2)$

$= 20$

Area of B, $A_{B}$ = 20 $cm^{2}$

Step:4

From the equation (1),

Area of given diagram = 20+ 9.81747

Area = 29.817 square centimeters

Result:

The area of the given diagram is 29.817 square centimeters. The given diagram is combination of rectangle and semi circle.

5 0

3 years ago