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3 years ago

You rent a surf board for $12 per hour. Your cost before the tax is added is $96

Mathematics

1 answer:

Rzqust [24]3 years ago

4 0

Answer:8 hours

Step-by-step explanation: divide 96\12 and then that’s how many hours

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We know that logarithmic functions are a bit more unusual than functions we’ve seen in the past, such as linear, exponential, qu

AnnyKZ [126]

Answer:

Step-by-step explanation:

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7 0

3 years ago

(-5)+(+7)=( ____) ???

Anni [7]

Answer: 2

Step-by-step explanation:

7 0

3 years ago

Which of the following is the rational exponent expression of third root of 4 n? A) (4n)3

zhuklara [117]

You have to check which of the following expressions is the rational exponent expression of third root of 4n, or mathematically, $\sqrt[3]{4n} .$ Consider all cases:

A. $(4n)^3=4^3\cdot n^3=64n^3\neq\sqrt[3]{4n} .$

B. $3n^4\neq \sqrt[3]{4n} .$

C. quantity of 4n to the one third power is $(4n)^{\frac{1}{3} }=\sqrt[3]{4n}$ (by the definition of rational power).

D. 4 times n to the one third power is $4\cdot n^{\frac{1}{3} }=4\sqrt[3]{n}\neq \sqrt[3]{4n} .$

Answer: correct choice is C.

3 0

3 years ago

Read 2 more answers

A store sells grass seed in small bags and large bags. The small bags have 7 pounds of seed for $27.93 and the large bags have 2

Arada [10]

Answer:

The 20 pound bag is a better by for only $66.98

Step-by-step explanation:

The large bag is better because the small bag is $27.93 for 7 pounds 7x3=21,so 3x27.93=83.79 is $16.81 more than the cost for the large bag

hope this makes sense;)

5 0

3 years ago

Write a quadratic equation given the roots -1/3 and 5, show your work

Travka [436]

$\boxed{(x - a)(x - b) = 0}$

The equation above is the intercept form. Both a-term and b-term are the roots of equation.

$x = - \frac{1}{3} \\ x = 5$

These are the roots of equation. Therefore we substitute a = - 1/3 and b = 5 in the equation.

$(x + \frac{1}{3} )(x - 5) = 0$

Here we can convert the expression x+1/3 to this.

$x + \frac{1}{3} = 0 \\ 3x + 1 = 0$

Rewrite the equation.

$(3x + 1)(x - 5) = 0$

Simplify by multiplying both expressions.

$3 {x}^{2} - 15x + x - 5 = 0 \\ 3 {x}^{2} - 14x - 5 = 0$

Answer Check

Substitute the given roots in the equation.

$3 {(5)}^{2} - 14(5) - 5 = 0 \\ 75 - 70 - 5 = 0 \\ 75 - 75 = 0 \\ 0 = 0$

$3( - \frac{1}{3} )^{2} - 14( - \frac{1}{3}) - 5 = 0 \\ 3( \frac{1}{9} ) + \frac{14}{3} - 5 = 0 \\ \frac{1}{3} + \frac{14}{3} - \frac{15}{3} = 0 \\ \frac{15}{3} - \frac{15}{3} = 0 \\ 0 = 0$

The equation is true for both roots.

Answer

$\large \boxed {3 {x}^{2} - 14x - 5 = 0}$

8 0

2 years ago