2 years ago

Which expressions are polynomials?

Mathematics

2 answers:

MaRussiya [10]2 years ago

4 0

Everyone of them except for 20x squared

xenn [34]2 years ago

3 0

these are the correct ones

20x'2',,,20x'2'+y

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Evaluate.<br> 18.65 -52/11=

professor190 [17]

The answer is about 13.9927.

You would divide 52/11 and then subtract that decimal by 18.65.

18.65-4.7272=13.9927.

6 0

2 years ago

A group of friends were working on a student film that had a budget of $700. They

Ipatiy [6.2K]

Answer:

231

Step-by-step explanation:

subtract 700 by 469

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2 years ago

A catapult launches a boulder with an upward velocity of 120 ft/s. The height of the boulder, h,

Vlad1618 [11]

Answer:

Reaches a maximum height of 235.00 feet in 3.75 seconds.

Step-by-step explanation:

The height of the boulder, h, in feet after t seconds is given by the function is given by :

$h=-16t^2+120t+10$ .....(1)

For maximum height, put $\dfrac{dh}{dt}=0$

i.e.

$\dfrac{d(-16t^2+120t+10)}{dt}=0\\\\-32t+120=0\\\\32t=120\\\\t=3.75\ s$

Put t = 3.75 in equation (1). So,

$h=-16(3.75)^2+120(3.75)+10\\\\h=235\ \text{feet}$

So, the boulder's maximum height is 235 feets and it takes 3.75 s to reach to its maximum height.

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2 years ago

There is a large number of cubes in a bag.

Alla [95]

Marked(10)/total = 3/20 (from sample)

total/10 = 20/3 (inverting the above proportion)

total = 10•20/3 = 200/3 ≈ 67

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2 years ago

A=1/2bh , solve for b

anygoal [31]

B= the base of the object

6 0

2 years ago

Read 2 more answers