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bonufazy [111]
3 years ago
9

Can you please help me with these three for my timed test I have rn. And maybe show your work too please!! Thank you :)

Mathematics
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

HI ITS NOT AB BECUSAEW SHE IS NOT HERE  TODAY

Step-by-step explanation:

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Louise bought 114 pounds of roast beef at $2.00 per pound and ​ 212 ​pounds of turkey at $1.50 per pound. What was her total cos
tia_tia [17]
$546.
114 * 2 + 212*1.5
5 0
2 years ago
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A rocket is launched at 85 ft./s from a launch pad that’s 28 feet above the ground. which equation can be used to determine the
3241004551 [841]

Answer:

h(t)=-16t^2+85t+28  is equation of height of rocket.

Option D is correct.

Step-by-step explanation:

Given: A rocket is launched with speed 85 ft/s from a height 28  feet.

Launching a rocket follows the path of parabola. The equation of rocket should be parabolic.

Parabolic equation of rocket is

Formula: h(t)=\dfrac{1}2gt^2+v_0t+h_0

g ⇒ acceleration due to gravity (-32 ft/s)

v ⇒ Initial velocity (v_0=85\ ft/s)

h ⇒ Initial height (h_0=28\ feet)

h(t) ⇒ function of height at any time t

Substitute the given values into formula

h(t)=\frac{1}{2}(-32)t^2+(85)t+28

h(t)=-16t^2+85t+28

D is correct.

6 0
3 years ago
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Help me please !!! ASAP
jok3333 [9.3K]
When multiplying numbers a negative number will make a positive into a negative. Yet if multiplied again by another negative it will cancel out or make it positive again. Seeing as answer c has only one negative it's the correct answer.
4 0
3 years ago
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If the frequency of a sound decreases, what happens to the wavelength?
madam [21]

Answer: The wavelength increases

Step-by-step explanation:

As frequency increases, wavelength decreases. Frequency and wavelength are inversely proportional. This basically means that when the wavelength is increased, the frequency decreases and vice versa.

Hope that this helps! Have a great day!

7 0
2 years ago
Keelin wants to find the value of t in the equation 1/3 (15t-30) =50 Her work is shown below.
slavikrds [6]

Answer:

distrubutive

Step-by-step explanation:

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3 years ago
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