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3 years ago

3x-2 when x=-2 whats the answer

Mathematics

2 answers:

Hoochie [10]3 years ago

7 0

Answer:

$3x - 2 \\ 3( - 2) - 2 \\ - 6 - 2 \\ - 8 .answer$

Step-by-step explanation:

please mark me brainliest please

Alchen [17]3 years ago

7 0

Answer:

-8

Step-by-step explanation:

If x = -2 then we are multiplying -2 and 3

-2 x 3 = -6

Then we are left with -6 and subtract 2

so we subtract 2 from -6

-6 - 2 = -8

Hope this helps! :)

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Hi everyone please answer this thank you

ozzi

Answer:

Answer for Q8: the smallest is 2 root 3 and the largest is 3 root 2

Answer for Q9: (x+y)(x-2)

Step-by-step explanation:

Q8: Type on a calculator to convert all of them to decimals and then compare

Q9: Factor by grouping. See attached.

8 0

1 year ago

Roberto is having his house painted. The job takes three days, and he pays the painter the same hourly rate

Tom [10]

Answer:

$\$60\ per\ hour$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Let

x -----> the number of hours worked

y ----> the amount paid in dollars

In this problem we have a proportional variation, between two variables, x, and y

<em>Find out the constant of proportionality k</em>

For (5,300) -----> $k=y/x$ ----> $k=300/5=60\ \$/h$

For (4,240) -----> $k=y/x$ ----> $k=240/4=60\ \$/h$

For (6,360) -----> $k=y/x$ ----> $k=360/6=60\ \$/h$

The constant k is

$k=60\ \$/h$

The equation is equal to

$y=60x$

The unit rate of change of dollars with respect to time is equal to the constant of proportionality or slope of the linear equation

therefore

$\$60\ per\ hour$

3 0

2 years ago

Enter the mixed number as a decimal 3 and 1 over 10

12345 [234]

3.1 i think but hopefully that might help

4 0

2 years ago

Write an equation in the line in slope intercept form

Sergio039 [100]

Answer:

Y=2x-1

Step-by-step explanation:

In order to find the slope, its rise over run. So you would move from (0,-1) to the next point it intercepts, (1,1) and find it from there

As for the Y-Intercept, it would just be wherever the line connects with the Y axis, which happens to be (0,-1) or Negative 1.

8 0

3 years ago

Someone plz help me

topjm [15]

x = 375 and y = 6300. Option C.

Step-by-step explanation:

From the given data we need to find the value of x and y.

First, we will find out the ratio of area and the force.

$\frac{Area}{Force} = \frac{125}{1875} =\frac{150}{2250} =\frac{175}{2625}$ = $\frac{1}{15}$

So,

$\frac{x}{5625} = \frac{1}{15}$

or, x = $\frac{5625}{15}$ = 375

Again,

$\frac{420}{y} = \frac{1}{15}$

or, y = 420×15 = 6300

Hence,

x = 375 and y = 6300.

7 0

3 years ago