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1 year ago

13 6

1 answer:

4 0

Answer: 4. 3. 9. = 2. 1. 10. = 3. 1. 11. = 10. 8. 12. = 3. 2. Rename each percent as a decimal: 13. 8% = 14. 60% = 15. 11% = 16. 12% = 17. 40% = 18. 95% = 6.

Step-by-step explanation: Good luck!

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Nine boys share 4 pizzas equally. what fraction of a pizza does each boy get?

Aleks04 [339]

Your answer would be 2 and 1/4 because when you divide 9 and 4 you get that.

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3 years ago

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The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y

Cerrena [4.2K]

We have been given that the inverse variation $y=\frac{3\times 10^8}{x}$ shows the relationship between wavelength in meters, x, and frequency, y. We are asked to find the wavelength for radio waves with frequency $3\times 10^9$ .

To find the required wavelength, we substitute $y=3\times 10^9$ in our given equation and solve for x as:

$3\times 10^9=\frac{3\times 10^8}{x}$

$x=\frac{3\times 10^8}{3\times 10^9}$

We can see that both numerator and denominator has 3, so we can cancel it out.

$x=\frac{1\times 10^8}{1\times 10^9}$

Using quotient rule of exponents $\frac{a^m}{a^n}=a^{m-n}$ , we will get:

$x=1\times 10^{8-9}$

$x=1\times 10^{-1}$

Therefore, the wavelength for radio waves would be $1\times 10^{-1}$ meters and option B is the correct choice.

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3 years ago

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Hannah purchased three items at the store for $7.05, $8.12, and $3.97. She paid for

vichka [17]

Answer:

She should receive $30.86

Step-by-step explanation:

$7.05 + $8.12 + $3.97 =19.14

50 - 19.14 = 30.86

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2 years ago

During halftime of a soccer game, a slingshot launches T-shirts at the crowd. A T-shirt is launched from a height of 5 feet with

4vir4ik [10]

Hi,

During halftime of a soccer game, a slingshot launches T-shirts at the crowd. A T-shirt is launched from a height of 5 feet with an initial upward velocity of 72 ft. Per second. The T-shirt is caught 34 feet above the field. How long will it take the T-shirt to reach its maximum height? What is the maximum height? What is the range of the function that models the height of the T-shirt over time.

Write the general equation that represents height of the t-shirt as a function of time.

f(t) = -16 $t^{2}$ + 72t + 5

2. What is the maximum height of the t-shirt?

$t = \frac{-72}{2(-16)} = 2,25$ $f(2,25) = -16(2,25)^{2} + 72(2,25) + 5$

$= 86 feet$

1. How long will it take the t-shirt to reach its maximum height?

2,25 secondes

3. The range describes which values of the graph? What would the range of this graph be? (Write in inequality and interval notation).

height (y)

5 ≤ y ≤ 86 [ 5,86 ]

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2 years ago

If x varies directly as y and x = 74 when y = 10, find x when y = 4.

Fittoniya [83]

Answer:

The value of x is 21 .

Step-by-step explanation:

We are given that x varies directly as y

--- A

We are given that x = 7 and y = 28

Substitute the values in A

7 = 28k

Now equations becomes :

y = 84

Hence The value of x is 21 .

#Learn more:

Find the value of y for a given value of x, if y varies directly with x.

If y = −252 when x = 84, what is y when x = 74

Step-by-step explanation:

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