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deff fn [24]
2 years ago
9

mr.ross is building playroom.he is going to tile the flooring using 20cmx20cm tiles. the floor measures 2mx4m in area. how many

tiles will he need to complete the job?
Mathematics
1 answer:
Valentin [98]2 years ago
3 0

Answer:

200 tiles

Step-by-step explanation:

area of the floor = 2m×4m

the tile=20cm×20cm

the tiles needed to complete the job will be

2m×4m

——–—–

20cm×20cm

change the meters to centimeters

200cm×400cm

————————

20cm×20cm

therefore the answer is 200tiles.

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4.75 qt = fl oz. pls help me with complete answers
anzhelika [568]

Answer:

4.75 Qt = 152 Fl. Oz.

Step-by-step explanation:

1 Quart = 32 Fluid Ounce

4.75 Qt = 32 × 4.75 Fl. Oz.

4.75 Qt = 152 Fl. Oz.

3 0
3 years ago
Complete the equation of the line through (-10,-7)(−10,−7)(, minus, 10, comma, minus, 7, )and (-5,-9)(−5,−9)(, minus, 5, comma,
Tanzania [10]

Answer:

y = -\frac{2}{5}\cdot x - 11

Step-by-step explanation:

First, the slope is determined by using the following expression:

m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

m = \frac{-7-(-9)}{-10 - (-5)}

m = -\frac{2}{5}

The y-intercept is found by using the line equation, the slope and one point:

y = m \cdot x +b

b = y - m\cdot x

b = -7 - \left(-\frac{2}{5}\right)\cdot (-10)

b = -11

The equation of the line is:

y = -\frac{2}{5}\cdot x - 11

7 0
3 years ago
Use the MacLaurin series for f(x).
katrin [286]
<span>y = tan^−1(x2/4)</span> tan(y) = x2/4 sec2(y) = x/2 y′ = xcos^2(y)/2 <span>cos^2(y) = <span>16x2+16</span></span> <span>y′ = <span>8x/(<span>x2+16)

let u be x2+16
du is 2x dx
dy = 4 du / u
 y = 4 ln (</span></span></span>x2 <span>+ 16)
 
y at x =0 = </span> 4 ln (<span>16) = 11.09</span>
6 0
3 years ago
The Excel file Store and Regional Sales Database provides sales data for computers and peripherals showing the store identificat
zhannawk [14.2K]

Answer:

Total sales revenue use  excel function : ( SUMIF. =sumif(range, criteria, [sum_range] )

For each of the stores: Use excel function: For Store 1: =sumif(B4:B99,1,I4:I99) then repeat same for Store 2 to store 8

Step-by-step explanation:

To modify the spreadsheet to calculate the total sales revenue we will add a column " sales revenue "

multiply values of column : ( unit sold * unit price )  to get Total sales revenue. then use  excel function : ( SUMIF. =sumif(range, criteria, [sum_range] ) to find Total sales revenue

calculate the total revenue for each of the 8 stores using a pivot table using  "store identification number" in row  and " sales revenue " in values field

To get the sales revenue ; replace " store identification value" with sales region " column

8 0
3 years ago
For which of the following increasing functions f does (f-1)'(20) = 1/5
aalyn [17]

Answer:

D f(x)= e^x+ 5x + 19

Step-by-step explanation:

D f(x)= e^x+ 5x + 19

5 0
3 years ago
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