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Leviafan [203]
4 years ago
15

3+12x5/(5+15) What’s the answer

Mathematics
2 answers:
monitta4 years ago
5 0
I think the answer is 6. I’m not sure tho ;-;
r-ruslan [8.4K]4 years ago
3 0

\bf 3+12\times \cfrac{5}{(5+15)}\implies 3+12\times \cfrac{5}{\underset{\uparrow }{20}}\implies 3+12\times \cfrac{1}{4}\implies 3+\cfrac{\stackrel{\downarrow }{12\times 1}}{4} \\\\\\ 3+\cfrac{12}{4}\implies 3+\stackrel{\downarrow }{3}\implies 9

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The formula for height, in feet of a projectile under the influence of gravity is given by h=-16t^2+vt+s, where t is the time in
kifflom [539]

Answer:

1.55s

Step-by-step explanation:

The height equation of the projectile is given as;

h = -16t^2 + vt + s .......1

where;

t is the time in seconds,

v is the upward velocity at the start,

s is the starting height.

Given;

v = 70 ft/s

s = 5 ft

Substituting the values equation 1 becomes;

h = -16t^2 + 70t + 5

For the ball to reach 75 ft, h = 0

75 = -16t^2 + 70t + 5

-16t^2 + 70t + 5 - 75 = 0

-16t^2 + 70t - 70 = 0

solving the quadratic equation;

Time t = 2.83 s and t = 1.55s

Therefore, the ball will first reach 75 ft after 1.55 seconds.

3 0
3 years ago
Jodi purchased a 32 fluid ounce container of vegetable oil.the bottle is currently 3/8 full. A)how fluid ounces does Jodi have l
den301095 [7]
A) 12 fluid ouces left
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5 0
4 years ago
An element with mass 490 grams decays by 28.6% per minute. How much of the element is remaining after 16 minutes, to the nearest
agasfer [191]

Answer:

2.2 grams

Step-by-step explanation:

We can use the compound decay formula shown below to solve this:

F=P(1-r)^t

Where

F is the final amount (what we want to find)

P is the present amount (490 grams)

r is the rate of decay, in decimal (28.6% = 28.6/100 = 0.286)

t is the time in minutes (16)

Substituting, we get:

F=P(1-r)^t\\F=490(1-0.286)^{16}\\F=490(0.714)^{16}\\F=2.2355

So, after 16 minutes, 2.2355 grams will be remaining.

<em>Rounded to nearest tenth of a gram (1 decimal place) = </em><em>2.2 grams remaining</em>

5 0
4 years ago
Could I have some help with this
kotegsom [21]

Answer:

y=-2

Step-by-step explanation:

7 (-8) - 2y = -52

-56 - 2y = -52

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y=-2

3 0
3 years ago
Read 2 more answers
Here was the question= (0.5f^2 d^9)^3
Stels [109]

Answer:

It is not wrong!

Step-by-step explanation:

You did it correctly. No worries!

8 0
3 years ago
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