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gizmo_the_mogwai [7]
3 years ago
8

Expanded form for 3,029,251

Mathematics
2 answers:
aliina [53]3 years ago
8 0
Try this : <span>3x10^6 + 2x10^4 + 9x10^3 + 2x10^2 + 5x10 + 1</span>
Arisa [49]3 years ago
5 0
3,000,000+20,000+9,000+200+50+1
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Ming throws a stone off a bridge into a river below.
AURORKA [14]

Answer:

1 seconds after being thrown, the stone reaches its max height

Step-by-step explanation:

The parabolic (quadratic) equation is:

h(x)=-5(x-1)^2+45

Lets expand this in the form ax^2+bx+c, so we have:

h(x)=-5(x-1)^2+45\\h(x)=-5(x^2-2x+1)+45\\h(x)=-5x^2+10x-5+45\\h(x)=-5x^2+10x+40

We can say the values of a,b, and c, now to be:

a = -5

b = 10

c = 40

The number of seconds at which the max would occur is given by the point, x, at:

x=-\frac{b}{2a}

We know a and b, let's find the seconds, x,

x=-\frac{b}{2a}=-\frac{10}{2(-5)}=-\frac{10}{-10}=--1=1

Hence,

1 seconds after being thrown, the stone reach its max height

6 0
3 years ago
Read 2 more answers
Wha is ecology???? ::-P​
maks197457 [2]

Answer:

the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

Step-by-step explanation:

7 0
3 years ago
Carleen has 104 pieces of candy leftover from Halloween. She would like to distribute them evenly to the 8 kids on her block. Wr
algol13

Answer:

8x = 104

x = 13

Step-by-step explanation:

Since we are trying to distribute it evenly, we divide 104 by 8 to get 13 pieces of candy per child.

The equation is saying 8 kids times <em>x</em> amount of candy per kid is equal to a total amount of 104 pieces of candy.

4 0
3 years ago
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A car travels at an average speed of 48 miles per hour. How long does it take to travel 180 miles?
Sonja [21]

Answer:

3 hours and 45 minutes

Step-by-step explanation:

mark me a brainliest answer

4 0
3 years ago
Find c.
Mazyrski [523]

Answer:

: c2 = a2 + b2 - 2ab cos C

c²=20²+15²-2×15×20×cos50

c²=400+225-600×0.64

c²=241

c=√241=15.5ft

7 0
2 years ago
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