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boyakko [2]
3 years ago
10

an object accelerates from rest to a velocity of 4.om / s over a distance of 20m . what was it's acceleration

Mathematics
1 answer:
AfilCa [17]3 years ago
7 0
Acceleration is the change in velocity over time. There's are formula's for such problems which are called kinematics equations. Look em up. One of them doesn't have t (time) in them you would normally use that one to solve this problem. 16/2/20=a=0.4m/s^2

I did it for you but please look it up, understand and memorize it ;) 
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How do i find x with this diagram
12345 [234]

Answer:

x=32

Step-by-step explanation:

that is an isosceles triangle, meaning 2 sides are the same and 2 anlges are the same.

each traingle = 180 degrees

3x+2(x+10)=180

3x+2x+20=180

5x=160

x=32

8 0
3 years ago
Marley bakes a rectangular cake that is 20 inches wide, 12 inches long and 6 inches high. She removes the cake from the pan to f
sesenic [268]
We know that
surface area of rectangular cake=area of the base+perimeter of base*height 

<span>only the top area is considered for frosting</span>

area of the base=20*12----> 240 in²

perimeter of the base=2*[20+12]----> 64 in
height=6 in

surface area of rectangular cake=240+64*6----> 624 in²

the answer is
624 in² 

4 0
3 years ago
Suppose you loan $320 to a friend and charge them 11% annual interest. If they don't pay any back, how many years will it take f
AnnZ [28]

Step-by-step explanation:

For them to owe you a total of$2000 then an interest of $2000-320=$1680 must have accrued over the time <em>T</em>

<em>T</em><em>=</em><em>$</em><em>1</em><em>6</em><em>8</em><em>0</em><em>×</em><em>1</em><em>0</em><em>0</em><em>/</em><em>3</em><em>2</em><em>0</em><em>×</em><em>1</em><em>1</em>

<em>T</em><em>=</em><em>4</em><em>7</em><em>.</em><em>7</em><em>2</em><em>7</em><em>2</em><em>.</em><em>.</em><em>.</em><em>≈</em><em>4</em><em>7</em><em>.</em><em>7</em><em>3</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>nearest</em><em> </em><em>hundredth</em>

Proof,

Interest after 47.7262...years which is converted to 525/11 years

=($320×11×525/11)/100

=$1680

therefore total amount which will be owed at that time =principal+interest accrued

=$320+1680=$2000

5 0
3 years ago
At a Super Duper Saver Mart, you can now buy 25 cartons of mostly-melted ice cream for $4. How many Caron’s of mostly-melted ice
Alex73 [517]

Answer:

  75

Step-by-step explanation:

$12 is 3 times $4, so we can expect to buy 3 times 25 cartons.

You can buy 75 cartons of mostly-melted ice cream for $12.

5 0
3 years ago
ASAP help me with this ty!
iren2701 [21]

Answer:

96 degrees

Step-by-step explanation:

The angle bisectors splits the two angles mentioned down the middle so the 2 angles are equal to each other.

4x + 4 = 2(x + 13)  Distribute the 2

4x + 4 = 2x + 26  Subtract 2x from both sides

2x + 4 = 26  Subtract 4 from both sides

2x = 22  Divide both sides by 2

x = 11  Plug that back into either the right side or the left side of the original equation

4x + 4

4(11) + 4

44 + 4

48.  Each angle is 48 degrees.  48 + 48 is 96

4 0
2 years ago
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