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3 years ago

PLEASE HELP AND ANSWER BOTH QUESTIONS

Mathematics

2 answers:

kati45 [8]3 years ago

5 0

1.) 16k^2 + 56kj + 49j^2

2.) 4y^2 - 36xy + 81x^2

nydimaria [60]3 years ago

3 0

D is your answer

Expand and do FOIL method (first outside inside last)
simplify and then choose right answer

A is your answer

Do the same thing

hope this helps

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Please help me..I don't understand how to solve problems like

Nuetrik [128]

Okay. So first you subtract 2x from each side. That will give you 4y= -2x+18 (you want to get y by itself). Then you divide both sides by 4. It should equal> y= 1/2x +9/2

3 0

4 years ago

Read 2 more answers

What is the difference between decimal and binary numbering systems give examples of when you would use each?

vaieri [72.5K]

The difference between decimal and binary system are-

The base-10 system, often known as the decimal system, is the oldest and most widely used system of numbers.
The binary number system, often known as base 2, is used by computers.

<h3>What is decimal system?</h3>

Our daily use of numbers is based on a decimal number system, which uses 10 digits. A number system in mathematics is thought of as the use of digits or symbols to represent numbers.

The binary number system, the decimal number system, the octal number system, and the hexadecimal number system are the four primary varieties of the number system.
Given that it was challenging to multiply & divide big numbers by hand in earlier civilizations, this decimal system system is sometimes called as the Hindu-Arabic and Arabic number system.

<h3>What is binary system?</h3>

The base-2 number system is the binary system. That implies that it solely use the digits 0 and 1. The 1 one location is moved to its left into the 2s place when adding one to one, and a 0 is placed in the ones place, yielding the number 10. In such a base-10 system, 10 thus = 10. 10 = 2 in the base-2 system.

The place values in a base-2 system begin with ones and progress to twos, fours, then eights as one move to its left.
This is due to the base-2 system's foundation in powers of two.
A bit is the term for each binary digit.

Therefore, a binary number system only employs two different digits(0 and 1), whereas decimal number system includes ten different digits (ranging from 0 to 9).

To know more about decimal system, here

brainly.com/question/16913175

#SPJ4

6 0

2 years ago

(10 POINTS) answer ASAP if you can

atroni [7]

Answer: As soon as possible

Step-by-step Explanation: You just say ASAP for As soon as possible

3 0

3 years ago

Solve 0 = (x – 4)2 – 1 by graphing the related function.

fomenos

Answer:

Therefore, the solutions of the quadratic equations are:

$x=5,\:x=3$

The graph is also attached.

Step-by-step explanation:

The solution of the graph could be obtained by finding the x-intercept.

$y=\left(x-\:4\right)^2-1$

Finding the x-intercept by substituting the value y = 0

$y=\left(x-\:4\right)^2-1$

$\:0\:=\:\left(x\:-\:4\right)^2\:-\:1$ ∵ y = 0

$\left(x-4\right)^2-1=0$

$\left(x-4\right)^2-1+1=0+1$

$\left(x-4\right)^2=1$

$\mathrm{For\:}\left(g\left(x\right)\right)^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}g\left(x\right)=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$\mathrm{Solve\:}\:x-4=\sqrt{1}$

$\mathrm{Apply\:rule}\:\sqrt{1}=1$

$x-4=1$

$x=5$

$\mathrm{Solve\:}\:x-4=-\sqrt{1}$

$\mathrm{Apply\:rule}\:\sqrt{1}=1$

$x-4=-1$

$x=3$

So, when y = 0, then x values are 3, and 5.

Therefore, the solutions of the quadratic equations are:

$x=5,\:x=3$

The graph is also attached. As the graph is a Parabola. It is visible from the graph that the values of y = 0 at x = 5 and x = 3. As the graph is a Parabola.

8 0

3 years ago

PLEASE HELP!

Fed [463]

Not sure for (b)

Step-by-step explanation:

(a)55+80+x=180 (angles inside the triangle)

135+×=+180

x=180-135

x=45

8 0

2 years ago