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3 years ago

What does this number apply to??

Mathematics

2 answers:

lutik1710 [3]3 years ago

7 0

Answer:

real numbers

Step-by-step explanation:

it equals-5

topjm [15]3 years ago

4 0

Hey there!

The opposite of the square root of 25 is -5, and this is an integer and a rational number and a real number.

Hope it helps and have a great day!

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What polynomial has roots of -5,-4 and 1

Semenov [28]

x³ + 8x² + 11x - 20 ← the first on list

given the roots of a polynomial, say x = a, x = b and x = c

then the factors are (x - a), (x - b) and (x - c)

the polynomial is the product of the factors

f(x) = (x - a)(x - b)(x - c)

here x = - 5, x = - 4 and x = 1, hence factors are

(x + 5), (x + 4) and (x - 1)

f(x) =(x + 5)(x + 4)(x - 1) ← expanding factors gives

f(x) = (x² + 9x + 20)(x - 1) = x³ + 8x² + 11x - 20

7 0

4 years ago

Please help this is urgent!!

Oliga [24]

Answer:

Primero que nada adios

Step-by-step explanation:

Y gracias por los puntos

3 0

3 years ago

Prove the following identity sin x(sec x+cscx)= tan x +1

Alexxandr [17]

Answer:

Step-by-step explanation:

________________________________________________________

FACTS TO KNOW BEFORE SOLVING :-

$\sin x = \frac{1}{cosec \: x} \: \: or \: \: cosex \: x = \frac{1}{\sin x}$

$\cos x = \frac{1}{\sec x} \: \:or \: \: \sec x = \frac{1}{\cos x}$

$\tan x = \frac{\sin x}{\cos x}$

________________________________________________________

In the question ,

L.H.S. = $\sin x (\sec x + cosec \: x)$

R.H.S. = $\tan x + 1$

Lets solve L.H.S. first.

$\sin x (\sec x + cosec \: x)$

$=> \sin x( \frac{1}{\cos x} + \frac{1}{\sin x} )$

$=> \frac{\sin x}{\cos x} + \frac{\sin x}{\sin x}$

$=> \tan x + 1$

∴ L.H.S. = R.H.S. (Proved)

3 0

3 years ago

Fill in your answers below with proper labels (words written out). Use π=3.14 Diameter = (number) (label in words) Radius = (num

il63 [147K]

Answer:

Step-by-step explanation:

Diameter:

A line passing through the center of the circle touching the circle at two points, is called diameter.

The chord passing through the center is diameter.

It is double of the radius.

so,

Diameter = (2) (Radius of the circle)

Radius:

Diameter divided by 2.

OR half of the diameter is called radius.

So,

Radius = (1/2) (diameter of the circle)

Area of a circle:

Area of a circle =πr^2

Using π=3.14

Area ≈ (3.14) (radius squared)

Circumference of a cricle:

It is equal to 2πr

If π=3.14, then 2π=6.28

Circumference ≈ (6.28) (radius of the circle)

5 0

3 years ago

Geometry semester 1

mariarad [96]

X = 40 * 3 / 15
x = 120 /15
x = 8

answer
A. 8

4 0

3 years ago

Read 2 more answers