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bija089 [108]
3 years ago
9

look at the digit to the right. if the digit to the right is less than 5, the digit in the roundig place stay the same. if the d

igit in the right is 5 or greater the digit in the rounding place increase by one. write zeros for the digits to the right of the rounding place. 389,422 209,767 191,306 66,098
Mathematics
1 answer:
ELEN [110]3 years ago
5 0
400,400,200,800,200,300,70,100
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The oven tray is 600mm by 500mm. A cake tin is 25cm in diameter. How many cake tins can jenny fit on the oven tray at one time?
MAXImum [283]
We have to convert the measurements
the tray is 60 cm by 50 cm

if the cake tin is 25 cm in diameter, it will fit just 4 cakes because we have a length of 60 cm (will have 10 cm left over) and a width of 50 cm 
hope it helps
5 0
3 years ago
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Given you or a person holding a kite string 100 feet long write and draw what the height or altitude the kite is off the ground
Salsk061 [2.6K]

Answer: 75.47\ ft

Step-by-step explanation:

Given

String of the kite is l=100\ ft

Angle of elevation \theta=49^{\circ}

suppose altitude of the kite is h

from the figure, we can write

\Rightarrow \sin 49^{\circ}=\dfrac{h}{100}\\\\\Rightarrow h=100\sin 49^{\circ}\\\\\Rightarrow h=75.47\ ft

Thus, the altitude of the kite is 75.47\ ft

8 0
3 years ago
There are 50 students going on a class trip. 35
iogann1982 [59]
The answer should be 74% probability

35/50+5/50-3/50= 37/50->74%
5 0
3 years ago
Solve the given differential equation by using an appropriate substitution. The DE is of the form dy/dx = f(Ax + By + C), which
Mariana [72]

d<em>y</em>/d<em>x</em> = 4 + √(<em>y</em> - 4<em>x</em> + 6)

Make a substitution of <em>v(x)</em> = <em>y(x)</em> - 4<em>x</em> + 6, so that d<em>v</em>/d<em>x</em> = d<em>y</em>/d<em>x</em> - 4. Then the DE becomes

d<em>v</em>/d<em>x</em> + 4 = 4 + √<em>v</em>

d<em>v</em>/d<em>x</em> = √<em>v</em>

which is separable as

d<em>v</em>/√<em>v</em> = d<em>x</em>

Integrating both sides gives

2√<em>v</em> = <em>x</em> + <em>C</em>

Get the solution back in terms of <em>y</em> :

2√(<em>y</em> - 4<em>x</em> + 6) = <em>x</em> + <em>C</em>

You can go on to solve for <em>y</em> explicitly if you want.

√(<em>y</em> - 4<em>x</em> + 6) = <em>x</em>/2 + <em>C</em>

<em>y</em> - 4<em>x</em> + 6 = (<em>x</em>/2 + <em>C </em>)²

<em>y</em> = 4<em>x</em> - 6 + (<em>x</em>/2 + <em>C </em>)²

7 0
3 years ago
diagram shows a track composed of a rectangle with a semicircle on each end. The area of the rectangle is 3,200 square meters. W
Volgvan
It is 468.4. Hope it helps
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