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3 years ago

What is the answer to 7x + 2 + 2x

Mathematics

1 answer:

kotykmax [81]3 years ago

6 0

Answer:

Your answer is 9x+2

Step-by-step explanation:

All you have to do is add like terms, for example, all of them that have X you can add them up,

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Does anyone knows how to solve thiss???

irina1246 [14]

10 thanks and i'll answer this

Step-by-step explanation:

8 0

2 years ago

Which of the following describes a scenario in which a chi-square goodness-of-fit test would be an appropriate procedure to just

egoroff_w [7]

Answer:

A campaign manager would like to show the distribution of individuals...

Step-by-step explanation:

goodness of fit can be used to compare observed and expected counts. The newspaper report would be the expected. The campaign manager's distribution is the expected.

3 0

2 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

OleMash [197]

ANSWER

$x=1.39$ to the nearest hundredth.

EXPLANATION

We have the equation,

$0=2x^2+3x-8$

Which can be rewritten as

$2x^2+3x-8=0$

The question demands the use of the quadratic formula.

Comparing this to the general quadratic equation;

$ax^2+bx+c=0$

$a=2,b=3,c=-8$

The quadratic formula is given by;

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We now substitute all the values in to the formula;

$x=\frac{-3\pm\sqrt{(3)^2-4(2)(-8)}}{2(2)}$

We simplify to obtain;

$x=\frac{-3\pm\sqrt{9+64}}{4}$

$x=\frac{-3\pm\sqrt{73}}{4}$

We now split the plus or minus sign to obtain;

$x=\frac{-3-\sqrt{73}}{4}$

This implies that;

$x=-2.89$

$x=\frac{-3+\sqrt{73}}{4}$

This will evaluate to;

$x=1.39$

Hence, the positive solution rounded to the nearest hundredth is

$x \approx 1.39$

6 0

3 years ago

Read 3 more answers

10.) If a system of equations are dependent what is unique about the lines 2 point

MrRa [10]

Step-by-step explanation:

can we have the picture of the graph?

5 0

3 years ago

Aaron needs 24 inches of copper wire for an experiment. The wire is sold by the centimeter. Given that 1 inch = 2.54 centimeters

tatiyna

$\frac{1}{2.54} =\frac{24}{x}$

Multiply both sides by 2.54.

$1=\frac{24}{x} (2.54)$

$= \frac{60.96}{x}$

Multiply both sides by x.

x = 60.96

Hence, Aaron needs 60.96 centimeters of wire.

8 0

3 years ago