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3 years ago

35. Find the area of the shaded region in the following figure, correct to one decimal place.

Mathematics

2 answers:

o-na [289]3 years ago

7 0

Answer:

Step-by-step explanation:

nlexa [21]3 years ago

6 0

Answer:

I think the answer is 96.45cm

Step-by-step explanation:

The radius = 13 cm, the area of the semi-circle is equal to (pi x 13^2)/2 which is equal to 265.45

The area of the triangle is (26 x 13)/2 = 169

So the area of the shaded area is 265.45 - 169 = 96.45cm

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Copy and fill in the charts.

Eduardwww [97]

Answer:

15% = 3/20 = 0.15

1.25 =125% =5/4

12 3/8 = 12.375 = 1237.5%

Step-by-step explanation:

15% to fraction , then decimal ;

$15\% = \frac{15}{100} \\Cross\:cancel\:common\:factor ; 5\\\\15\div 5 = 3\\100\div 5 = 20\\\\= \frac{3}{20}\\\\\frac{3}{20} = 0.15$

1.25 to fraction , then percentage

$1.25 = \frac{1.25}{1} \times \frac{100}{100} \\\\1.25\times 100 =125\\1\times 100 = 100\\\\= \frac{125}{100} \\= \frac{5}{4} \\\\1.25\times 100\\= 125\%$

12 3/8 to decimal then percentage

$12\frac{3}{8} =\frac{99}{8} = 12.375\\\\12.375\times 100\\\\= 1237.5\%$

5 0

3 years ago

Does 10cm, 30cm, and 15cm form a triangle????

Helen [10]

Answer:

No, because the 3 angles of a triangle must add up to 180 degrees and yours only add up to 55

Step-by-step explanation:

7 0

3 years ago

OMG DUE IN 40 MINUTESSSS!!

ELEN [110]

Answer:

17 1/3 52/3

Step-by-step explanation:

3x+y=38

3x+2y=52

-y=14

y=-14

3x+-14=38

3x-14=38

3x=38+14

3x=52

3x/3=52/3

x=171\3

17 is a whole number then 1 divided by 3 . thus is x

4 0

3 years ago

Write a ratio, in the simplest form and a percent for the shaded area (there's a 5x4 box and 6 cubes are shaded)

Alexxandr [17]

Answer:

$\%Percent = 30 \%$

Step-by-step explanation:

Given

$Shaded = 6\ cubes$

$Box = 5\ x\ 4$

Required

Determine the percentage of the shaded cubes

First, we calculate the number of boxes:

$Box = 5\ x\ 4$

Express as multiplication

$Box = 5\ *\ 4$

$Box = 20$

This implies that there are 20 cubes in the box.

The percentage of the shaded cubes is:

$\%Percent = \frac{Shaded}{Box} * 100\%$

$\%Percent = \frac{6}{20} * 100\%$

$\%Percent = \frac{6* 100}{20} \%$

$\%Percent = \frac{600}{20} \%$

$\%Percent = 30 \%$

<em>30% were shaded</em>

5 0

2 years ago

Please help me on this TIA!!

tamaranim1 [39]

50.24 hope it helps:)

8 0

3 years ago