What is the = to 5x+ 7 =42 please give details

Answer:

I put 4, 5, & 6 in order in the photos.

7-8-9 are all linear functions which are written in the y=ax+b format, the ones I put in bold are the equations and I listed the values just in case I'm not sure how your teacher makes you write them.

7.

-0.6=a(-3)+b

0.2=a(1)+b

1.4=a(7)+b

a=0.2,b=0

y=0.2x

8.

-10=a(-5)+b

-1=a(-2)+b

17=a(4)+b

b=5, a=3

y=3x+5

9.

8=a(-5)+b

2=a(-2)+b

-18=a(8)+b

b=-2, a=-2

y=-2x-2

10.

The domain and range is negative infinity to infinity.

11.

For a basic subscription, a cable television provider charges an activation fee of $60, plus $125 per month. What linear function represents the total cost of basic cable subscription for t months? What is the total cost for two years of service?

y=125x+60

$310 for 2 months

$3060 for 2 years

Step-by-step explanation:  let x be the number of months

y=125x+60

y=125(2)+60

y=310 dollars for two months

y=125(24)+60

y=3060 dollars for two years

I hope it helps!

(D) {-4, -1, 0, 1, 4 }

is the correct answer

Answer:

true

Step-by-step explanation:

not 100% sure but I had a question similar a few years back.

Answer:

37

Step-by-step explanation:

It will take twenty 30-day periods until the value of the gift cards will be equal. The value of each card when they have equal​ value is $10

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Let x represent the number of​ 30-day periods until the value of the gift cards will be equal.

Tavon has a gift card for $90 that loses $4 for each​ 30-day period it is not used. This means that x 30-day periods, the amount left would be

90 - 4x

He has another gift card for $ 80 that loses $3.50 for each​ 30-day period it is not used. This means that x 30-day periods, the amount left would be

80 - 3.5x

For the amounts left on each card to be the same, the number of periods would be

90 - 4x = 80 - 3.5x

90 - 80 = - 3.5x + 4x

10 = 0.5x

x = 10/0.5

x = 20

The value of each card when they have equal​ value is

90 - 4 × 20 = 90 - 80

= $10

Therefore, It will take twenty 30-day periods until the value of the gift cards will be equal. The value of each card when they have equal​ value is $10

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Answer:

it is -3 8 and 2

Step-by-step explanation:

Answer:

i think its  -3 8 and 2 (maybe)

Step-by-step explanation:

i asked my friend

Answer:

1.) 10000

11000

10900

10880

2.) 50000

53000

52900

52860

3.) (repeat of 1.)

4.) 80000

77000

77300

77330

5.) (repeat of 1.)

6.) (repeat of 4.)

7.) (repeat of 1.)

8. 70000

66000

65500

65540

Answer:

1. 10879.0000

2.52864.0000

3. 65536.0000

4.77329.0000

Step-by-step explanation:

They are all the same but just keep adding zeros.

(Hope this helps can I pls have brainlist (crown)☺️)

Answer: wrote it down on paper

Step-by-step explanation:

Answer:

all real numbers

Step-by-step explanation:

domain is all the possible numbers for x

here x can be any real number

range is all the possible numbers for y

here y can also be any real number based on y

so for both domain and range the answer is all real numbers

Answer:

2c exponent 4 d exponent 4

Answer:

Step-by-step explanation:

first, let the numbers be x and y.

so by question we have,

x+y=54.......(I)

x-y=116......(I I)

now, solve it through elimination method,

x+y=54

x-y=116

here, y and y cancelled out and we get,

or, x+x=54+116

or, 2x=170

or, x=170/2

therefore, x=85

now put value of x in any equation. let's put in eqn (I), we get,

or, x+y=54

or,85+y=54

or, y=54-85

so, y= -31

therefore, the numbers are 85 and - 31.

Answer:

I can't answer this I cant read that sloppy handwriting

Answer:

The answer is C

Step-by-step explanation:

t = bill for the customer

h= number of hours Dj worked

1) t = 75h + 35

This is wrong because h represents the number of hours the Dj worked. 75 is how much the customers paid as a setup fee.

2) t = 35 + 75

This is wrong because it's asking you to use "h" and "t" to determine the total. This is just a regular equation.

3) t = 35h + 75

This is right because as it says in the problem "The price of the Dj is $35 per hour" It also says use "h" to represent the number of hours the DJ works.

The "t" is used for the customer bill and 75 represents the setup fee

4) h = 35t + 75

This is wrong because h respresents how many hours the DJ works.

"t" represents the bill for the customer. The "t" would be in the beginning of the equation and the "h" would be behind the amount the DJ got paid per hour.

Step-by-step explanation:

gegydebdjsixhebxuhdbdxhurhdf

A person heart beats is 4.2 x 10∧7

there are 7,600,000,000= 7.6 x 10∧9

the heartbeats for all the people here on earth= 4.2 x 10∧7 x 7.6 x 10∧9

choosing like terms

4.2 ×7.6×10∧7×10∧9

31.92x10∧(7+9)

31.92×10∧16

a=31.92

b=16

Answer:

[tex]3.192*10^1^7[/tex]

Step-by-step explanation:

To find this value, multiply the two values given:

4.2x10^7 = 4.2 x ( 10 x 10 x 10 x 10 x 10 x 10 x 10) = 42000000

42000000 x 7600000000 = 319200000000000000

Then convert 319200000000000000 into scientific notation:

319200000000000000 = 3.19200000000000000

Cut off all the zeroes and I moved the decimal 17 places to the left, so the exponent will be positive:

[tex]3.192*10^1^7[/tex]

Answer:

Step-by-step explanation:

This number is much larger than 1. You need to start at the decimal and move left (that's how scientific notation works for numbers larger than 1.)

So the answer is 1.0054 * 10 ^7

The person doing this started at the 1 and moved right until he/she hit the decimal. Wrong direction.

Answer:

-1/2

Step-by-step explanation:

y2 - y1 / x2 - x1

-5 - (-1) / 5 - (-3)

-4/8

= -1/2

Answer:

73 + 75

l=11 w=17

Answer: 2(x^2 + 1)

Step-by-step explanation: its either that or no solution for this question

y = 6/5x - 1

hope this helps :) !!

Answer:

[tex]y = \frac{6}{5}x - 1[/tex]

Step-by-step explanation:

use the formula

[tex]y = mx + b[/tex]

m is the slope and b is the y-intercept. Begin with b, where the line crosses the y-axis (vertical axis). It crosses at -1, so this is b.

Next move with m. Do rise/run. Start at the y-intercept and you are going to rise 6 and run 5 to the next point. So the slope is 6/5. Leave as an improper fraction. Plug-in for m. Since the line goes uphill from left to right it has a positive slope.

Answer:

A. 3/4

Step-by-step explanation:

Find the 2 points, then count how many boxes it goes up and over to the second point.

Answer:

AAS

Explanation:

The angles come first in that triange and then the side

Answer:

hope this helps

sorry if it isn't what you're looking for

Step-by-step explanation:

(x+4)-5)-6 =1

combine the +4 and -5

x-7 =1

add 7 to both sides

x=8

Yolanda started on step 8

Answer:

n;

Convection; Radiation; Insulation.

PLTS/Gatsby:

Effective participants;

Independent Enquirers.

Compare group 1, 7 and 8 elements.

The BIG question

is… What is the trend in reactivity in the alkali metals, halogens and noble gases

REVISE for the cycle one assessment.

How are the elements in the periodic table different from one another?

How and why have different species evolved over time?

How is heat transferred?

Construct

WSHUTUP

Step-by-step explanation:

Answer:

y

=

4

3

x

−

6

Step-by-step explanation:

The equation of the line is y = ( 4/3 )x + 2.

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

Given that the equation is parallel the line y = ( 4 / 3 )x + 8 and passes through the point ( -6 , -6 ).

The general equation of the line is

y = mx + c

The slope of the required line will be the same as the slope of the line parallel to the required line.

m = ( 4 / 3 )

The equation of the line will be written:-

y = mx + c

y = ( 4 / 3 )x + c

-6 = ( 4 / 3 ) x -6 + c

c = 2

y = ( 4/3 )x + 2

Therefore, the equation of the line is y = ( 4/3 )x + 2.

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Answer: no

Step-by-step explanation:

an example of a linear equation is x + 1. linear means a straight line. In a linear, the highest exponent on the x opponent is 1. in the equation 3x^2 + 2, the highest exponent on the x opponent is 2 which means this is a quadratic not a linear.

Answer:

-16 Degrees

Step-by-step explanation:

Just subtract: 2-18=negative 16 --> -16

x will be 142 degrees as they are corresponding angles. See the attached image