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3 years ago

What is disk used on a place value chart

1 answer:

3 0

These concepts become more clear when teachers use number disks instead of base ten blocks. Place value is a very important concept for elementary students because base ten is the foundation of our number system.

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Evaluate 3(m^2-2) when m=1.5

Nitella [24]

Answer:

0.75

Step-by-step explanation:

Put the number where the variable is and do the arithmetic.

3(1.5² -2) = 3(2.25 -2) = 3(0.25) = 0.75

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2 years ago

Kate qualifies for a total of $9,450 in scholarships and grants per year, and she will earn $2,900 each year through a work-stud

gulaghasi [49]

Answer:

452

Step-by-step explanation:

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2 years ago

A ball is thrown upward with an initial velocity of 60 mph. it is thrown from a height of 5 feet. what is the maximum height it

natima [27]

Answer:

h = 61.25 m

Step-by-step explanation:

It is given that,

The initial velocity of the ball, v = 60 m/s

It is thrown from a height of 5 feet, $h_o=5\ ft$

We need to find the maximum height it reaches. The height reached by the projectile as a function of time t is given by :

$h=-16t^2+vt+h_0$

Putting all the values,

$h=-16t^2+60t+5$ .....(1)

For maximum height, put

$\dfrac{dh}{dt}=0\\\\\dfrac{-16t^2+60t+5}{dt}=0\\\\-32t+60=0\\\\t=\dfrac{-60}{-32}\\\\t=1.875\ s$

Put t = 1.875 in equation (1)

$h=-16(1.875)^2+60(1.875)+5\\\\h=61.25\ m$

So, the maximum height reached by the ball is 61.25 m.

8 0

3 years ago

-4+x= -11 please answer it

Slav-nsk [51]

Answer:

x=-7

Step-by-step explanation:

add 4 to both sides. leaving you with x=-7

8 0

3 years ago

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A motorcycle can travel 70 miles per gallon. Approximately how many gallons of fuel will the motorcycle need to travel 60 km?

Likurg_2 [28]

5he answer would be d

4 0

3 years ago

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