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forsale [732]
3 years ago
10

On a blueprint, the scale indicates that 4 centimeters

Mathematics
1 answer:
makvit [3.9K]3 years ago
6 0

Answer:

Length: 15 feet Width: 105 feet

Step-by-step explanation:

set up a proportion of x over 4 and x over 12 fill in the length or width that you do know. Then cross multiply and solve the simple equation you get: for example) 60 = 4x. Just divide both sides by 4 to get x by itself.

Hope this answered your question!

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Rasek [7]

Answer:

3/2 is equivalent to 2/3 because

when u do 3/2 that means ur

doing 3x2 and 3x2 equals 6 and 2x3 eqauls 6.

7 0
2 years ago
Simplify the radical expression. EXPLAIN ALL YOUR STEPS. <br><br> sqrroot 363-3sqrroot 27
Jobisdone [24]

Answer:

2√3

Step-by-step explanation:

\tt\sqrt{363}-3\sqrt{27}= \sqrt{11^2\cdot3}-3\sqrt{3^2\cdot3}= 11\sqrt{3}-9\sqrt{3}=2\sqrt{3}

7 0
3 years ago
A seed company planted a floral mosaic of a national flag. The perimeter of the flag is 2,340 ft Determine the​ flag's width and
netineya [11]

Answer:

Step-by-step explanation:

L=W+390, W=L-390

P=2(W+L), P=2340

2(L-390+L)=2340

2L-390=1170

2L=1560

L=780ft

3 0
3 years ago
What's the approximate area of a segment of a circle with a height 6 m and the length of the chord is 20 m? Round your answer to
yuradex [85]
Hello!

The Correct Answer to this would be 100%:

Option "85.4".

(Work Below)

Given:
height = 6m
chord = 20 m

We need to find the radius of the circle.

20 m = 2 √ [ 6m( 2 x radius - 6 m ) ] 
20 m / 2 = 2 √[ 6m( 2 x radius - 6 m ) ] / 2 
10 m = √ [ 6m( 2 x radius - 6 m ) ] 
(10 m)² = √[ 6m( 2 x radius - 6 m ) ] ² 
100 m² = 6 m( 2 x radius - 6 m ) 
100 m² = 12 m x radius - 36 sq m 
100 m² + 36 m² = 12 m x radius - 36 m² + 36 m² 
136 m² = 12 m x radius 
136 m² / 12 m = 12 m x radius / 12 m 
<span>11.333 m = radius 
</span>
the area beneath an arc: 

Area = r² x arc cosine [ ( r - h ) / r ] - ( r - h ) x √( 2 x r x h - h²<span> ). 
</span>
r² = (11.333 m)² = 128.444 m² 
r - h= 11.333 m - 6 m = 5.333 m 
r * h = 11.333 m x 6 m = 68 m²

Area = 128.444 m² x arc cosine [ 5.333 m / 11.333 m ] - 5.333 m x √[ 2 x 68 m² - 36 m² ] 

Area = 128.444 m² x arc cosine [ 0.4706 ] - 5.333 m x √ [ 100m² ] 

Area = 128.444 m² x 1.0808 radians - 5.333 m x 10 m 

Area = 138.828 m² - 53.333 m² 

Area = 85.4 m<span>²
</span>

Hope this Helps! Have A Wonderful Day! :)


And as Always...

7 0
3 years ago
The formula for the circumference of a circle is C = 2nr. Find the circumference of a
Sholpan [36]

Step-by-step explanation:

circumference = 2\pi \: r \\ C = 2 \times 3.14 \times ( \frac{4}{2} ) \\ C = 12.56 \: ft

7 0
2 years ago
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