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3 years ago

Witch fraction is equivalent to 1/3

Mathematics

1 answer:

natulia [17]3 years ago

5 0

Answer:

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Step-by-step e

Step-by-step explanation:

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For what value is a is (a,9) a solution of the equation y=2x+1

yanalaym [24]

Answer:

a = 4

Step-by-step explanation:

y = 2x + 1 ......(1)

Going through y - y1 = m(x - x1)

m is slope and it is 2

y1 = 9 and x1 = a

y - 9 = 2(x - a)

y - 9 = 2x - 2a

y = 2x - 2a + 9 ........(2)

Equating (1) and (2)

2x + 1 = 2x - 2a + 9

Collecting like terms

2x - 2x + 2a = 9 - 1

2a = 8

a = 8/2

a = 4

7 0

3 years ago

A freight elevator can hold a maximum weight of 3,500 pounds.

Brrunno [24]

Answer:

Step-by-step explanation:

$200 + 48c \leqslant 3500$

$48c \leqslant 3300$

$c \leqslant 68.75$

5 0

2 years ago

Does anyone know the answer?

Evgesh-ka [11]

The perimeter of R is the same as the perimeter of L

3 0

4 years ago

If a triangle has an area of 24 square cm what is its base if the height is 3 cm

kolezko [41]

Answer:

b=16cm .......................

3 0

3 years ago

Read 2 more answers

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