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3 years ago

Could you help me, pls? :c

Mathematics

2 answers:

n200080 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

if a=2 then

4(2)-2x is greater than or equal to 13(2)

8-2x is greater than or equal to 26

You now have to find the smallest number that will accurately fit this equation. In this case it is 17.

8-2(17) is greater than or equal to 26

8-34 is greater than or equal to 26

26 is greater than or equal to 26

Hope this helps :)

Airida [17]3 years ago

6 0

Answer:

lolshdusudyudhdgfhfhd

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If a cannonball is shot directly upward with a velocity of 160 ft per second, its height above the ground after t seconds is gi

Contact [7]

Step-by-step explanation:

If a cannonball is shot directly upward with a velocity of 160 ft per second. Its height as a function of time is given by :

$h(t)=160t-16t^2$ .......(1)

t is in seconds

(a) Velocity is given by :

$v=\dfrac{dh}{dt}\\\\v=\dfrac{d(160t-16t^2)}{dt}\\\\v=(160-32t)\ ft/s$

Acceleration is given by :

$a=\dfrac{dv}{dt}\\\\a=\dfrac{d(160-32t)}{dt}\\\\a=-32\ ft/s^2$

(b) For maximum height put $\dfrac{dh}{dt}=0$

i.e.

$160-32t=0\\\\t=5\ s$

Put t = 5 s in equation (1). So,

$h(5)=160t-16t^2\\\\h(5)=160(5)-16(5)^2\\\\h(5)=400\ ft$

h(t) = 0

$160t-16t^2=0\\\\t(160-16t)=0\\\\t=0,t=10\ s$

Hence, this is the required solution.

4 0

3 years ago

6(3−y) simplified plz help meeeeeee

Anuta_ua [19.1K]

Answer:

18 - 6y

Step-by-step explanation:

6(3 - y) ← multiply each term in the parenthesis by 6

= 18 - 6y

7 0

3 years ago

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What is the distance between the points (1, 3) and (9, 9)?

sashaice [31]

the answer is 10 units

$distance = \sqrt{(9 - 1) ^{2} + (9 - 3) {}^{2} } \\ = \sqrt{ {8}^{2} + {6}^{2} } \\ = 10$

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3 years ago

If it takes 6 printing presses 4 hours to print 5000 newspapers, how long should it take 3 presses to print 3000 newspapers?

vladimir1956 [14]

Answer:

4 hrs 48 min

Step-by-step explanation:

It takes 6 presses 4 * 3/5 = 12/5 hours to print 3000 newspapers.

It takes 3 presses 2 * 12/5 = 24/5 hours = 4h48min to print 3000 newpapers

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3 years ago

What is the circumference of a circle is 22 pi yards. Find the radius of the circle in terms of pi

Ganezh [65]

Answer:

r=C

2π

Step-by-step explanation:

3 0

3 years ago

Could you help me, pls? :c​

Could you help me, pls? :c