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Rus_ich [418]
3 years ago
15

Number 6. I have no idea how to do this because the question doesn’t give enough information

Mathematics
1 answer:
Savatey [412]3 years ago
3 0

{13}^{2}  =  {5}^{2}  \times {b}^{2}  \\ 169 = 25 \times  {b}^{2}  \\ 165 - 25 =  {b}^{2}  \\ 144 =  {b}^{2}  \\  \sqrt{ {b}^{2} }  =  \sqrt{144}  \\ b = 12

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Mr. Castillo earns 270,920.64 a year. What is his monthly salary?
lozanna [386]

We need to divide for this. Since there are 12 months in a year, we divide his yearly salary by 12.

270,920.64÷12=22,576.72


So, Mr.Castillo's monthly salary is $22,576.72.

8 0
3 years ago
Five students from the 90 students in your class not running for class
trapecia [35]
The answer is 7859
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5 0
3 years ago
PLEASE HELP!!!!!!
Montano1993 [528]

Answer:

Yes. In general, the set of rational numbers is closed under addition, subtraction, and multiplication; and the set of rational numbers without zero is closed under division.

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
A projectile is fired directly upward. The compound inequality 89 – 9.8t < 10.6 or 89 – 9.8t > 20.4 represents a projectil
Tom [10]

Given compound inequality 89 – 9.8t < 10.6 or 89 – 9.8t > 20.4.

Let us solve them one by one.

89 – 9.8t < 10.6

Subtracting 89 from both sides, we get

89-89 – 9.8t < 10.6 - 89

-9.8t < -78.4

Dividing both sides by -9.8, we get

t > 8.

<em>Note: Inequality sign get flip on dividing both side by a negative number.</em>

89 – 9.8t > 20.4

Subtracting 89 from both sides, we get

89-89 – 9.8t < 20.4 - 89

-9.8 t < - 68.6.

Dividing both sides by -9.8, we get

t < 7

<em>Note: Inequality sign get flip on dividing both side by a negative number.</em>

<h3><em> The solution to the inequality 89 – 9.8t < 10.6 is </em>t > 8. </h3><h3> The solution to the inequality 89 – 9.8t > 20.4 is t < 7.</h3>

When the projectile hits the ground:

89 – 9.8t = 0

Subtracting 89 from both sides, we get

89 - 89 – 9.8t = 0 -89.

-9.8t = -89.

Dividing both sides by 9.8, we get

<h3>to the nearest whole second  t is about 9 seconds.</h3><h3>Therefore, variable solution set is {t < 7, t > 8, t = 9}.</h3><h3 />
7 0
3 years ago
Read 2 more answers
Which is a quadratic function? f(x) = 2x x 3 f(x) = 0x^2 – 4x 7 f(x) = 5x^2 – 4x 5 f(x) = 3x^3 2x 2
saw5 [17]
It's f(x) = 5x^2 - 4x + 5
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3 years ago
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