All categories

2 years ago

-4x+2=-6;2 us this a solution to the equation

Mathematics

2 answers:

Shalnov [3]2 years ago

7 0

Yes that is a solution to the equation.

Alex17521 [72]2 years ago

4 0

Hi there! Yes, x = 2 is a solution to this equation.

Let's solve this equation step by step!
$- 4x + 2 = - 6$

Subtract 2 from both sides.
$- 4x + 2 - 2 = - 6 - 2 \\ - 4x = - 8$

Now divide both sides of the equation by -4 (and remember that when dividing two negatives we end up with a positive).
$x = \frac{ - 8}{ - 4} = 2$

And therefore x = 2 is a solution to this equation.
~ Hope this helps you!

You might be interested in

rashaads car used 2/3 of a gallon to travel 14 1/2 miles .How many miles can the car go on one gallon of gas

Brut [27]

Answer:

21.75 or 21 $\frac{3}{4}$

Step-by-step explanation:

What I did was 14.5 / 2 to see how many miles were on a 1/3 gallon, then multiplied that answer (which was 7.25) by 3 to get the full 3/3 or 1 gallon.

7 0

2 years ago

The height h, in feet, of a ball that is released 4 feet above the ground with an initial velocity of 80 feet per second is a fu

gulaghasi [49]

Answer with Step-by-step explanation:

The height of the ball from the ground as a function of time is given by

$h(t)=-16t^2+80t+4$

The height of the ball at any instant of time can be found by putting the value of time 't' in the above relation as

Part a)

Height of ball after 2 seconds it is released is

$h(2)=-16\times 2^2+80\times 2+4=100feet$

Part b)

Height of ball after 4 seconds it is released is

$h(4)=-16\times 4^2+80\times 4+4=68feet$

4 0

3 years ago

Read 2 more answers

4-13 Students in a management science class have just re- ceived their grades on the first test. The instructor has provided inf

inessss [21]

Answer:

a) y = 0.74x + 18.99; b) 80; c) r = 0.92, r² = 0.85; r² tells us that 85% of the variance in the dependent variable, the final average, is predictable from the independent variable, the first test score.

Step-by-step explanation:

For part a,

We first plot the data using a graphing calculator. We then run a linear regression on the data.

In the form y = ax + b, we get an a value that rounds to 0.74 and a b value that rounds to 18.99. This gives us the equation

y = 0.74x + 18.99.

For part b,

To find the final average of a student who made an 83 on the first test, we substitute 83 in place of x in our regression equation:

y = 0.74(83) + 18.99

y = 61.42 + 18.99 = 80.41

Rounded to the nearest percent, this is 80.

For part c,

The value of r is 0.92. This tells us that the line is a 92% fit for the data.

The value of r² is 0.85. This is the coefficient of determination; it tells us how much of the dependent variable can be predicted from the independent variable.

3 0

2 years ago

Chris requires three fifths liter of paint to complete a poster. He has one half liter of paint. Which equation can be used to f

Makovka662 [10]

Answer:

d the expression with the fractions three fifths minus one half is equal to the expression with the fractions six tenths minus five tenths is equal to the fraction one tenth

Step-by-step explanation:

Chris requires three fifths liter of paint to complete a poster. He has one half liter of paint. Which equation can be used to find the fraction of a liter of paint Chris still needs to complete the poster?

The fraction of a liter Chris requires to complete his painting is given as:

3/5 liter = 1/2 liter + x

x = 3/5 - 1/2

Lowest Common Denominator = 10

x = 6 - 5/10

x = 1/10

option d is the correct option.( the expression with the fractions three fifths minus one half is equal to the expression with the fractions six tenths minus five tenths is equal to the fraction one tenth)

6 0

2 years ago

Please help, no bots. will give brainly

ivolga24 [154]

Answer:

130cm2

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers