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3 years ago

HELP PLEASE, I REALLY DONT UNDERSTAND THIS!

Mathematics

1 answer:

zubka84 [21]3 years ago

6 0

Answer: Since 3−5+2=0, then 2

is the additive inverse of 3−5 is 2

Since 5−3−2=0, then −2is the additive inverse of 5−3. is -2

Step-by-step explanation: additive inverse

The additive inverse of any number

is the number that gives zero when added to

. Example: the additive inverse of

5 is −5.

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mojhsa [17]

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2 years ago

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Ashley has sold 70% of the 20 candy bars she has to. How many candy bar's does she have left to sell

yawa3891 [41]

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3 years ago

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Determine the solutions of the equation:

jekas [21]

The solutions of the equation are x = 15 and x = -20

<h3>How to determine the solutions of the equation?</h3>

The equation is given as:

the absolute value quantity two fifths times x plus 1 end quantity minus 7 equals 0

Rewrite the equation properly as:

|2/5x + 1| - 7 = 0

Add 7 to both sides

|2/5x + 1| = 7

Remove the absolute bracket

2/5x + 1 = 7 and 2/5x + 1 = -7

Subtract 1 from both sides

2/5x = 6 and 2/5x = -8

Solve for x

x = 15 and x = -20

Hence, the solutions of the equation are x = 15 and x = -20

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brainly.com/question/1782403

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1 year ago

If a square has 10 equal parts and 4 are shaded and 6 are blank what is the percent represented by the shaded area

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3 years ago

A taxi company charges $4.00 for the first mile (or part of a mile) and 80 cents for each succeeding tenth of a mile (or part).

svet-max [94.6K]

Answer:

The piecewise function is:

$C(x) = C(x) = \left \{ {{4, 0< x \leq 1} \atop {4 + 8x, 1 < x \leq 2}}\right.$

Step-by-step explanation:

A piecewise function is a function that is defined in multiple intervals.

In the first interval:

$0 < x \leq 1$

The problem states that a taxi company charges $4.00 for the first mile (or part of a mile).

x is the number of miles. So

If $x \leq 1, C(x) = $4.00$ .

Second interval:

$1 < x \ leq 2$

Here, the cost is defined by a linear function in the following format:

$C(x) = C_{0} + rx$

In which $C_{0}$ is the initial price and r is the price paid per mile.

The problem states that each succeeding tenth of a mile costs 80 cents. So

we have the following rule of three.

1 mile - r dollars

0.1miles - 0.8 dollars

$0.1r = 0.8$

$r = \frac{0.8}{0.1}$

$r = 8$

So, we have

$C(x) = 4 + 8x, 1 < x \leq 2$

Piecewise function:

The piecewise function is:

$C(x) = C(x) = \left \{ {{4, 0< x \leq 1} \atop {4 + 8x, 1 < x \leq 2}}\right.$

7 0

2 years ago