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trapecia [35]
2 years ago
7

the ratio of the corresponding linear measures of two similar cans of cat food is 4:3. the larger can has a SA of 100 inches. fi

nd the surface area of the smaller can. round to the nearest tenth.
Mathematics
1 answer:
Scorpion4ik [409]2 years ago
7 0

Answer:

56.3 in²

Step-by-step explanation:

Given 2 similar figures with linear ratio = a : b, then

area ratio = a² : b²

Here linear ratio = 4 : 3, thus

area ratio = 4² : 3² = 16 : 9

Let x be the surface area of the smaller can then by proportion

\frac{16}{100} = \frac{9}{x} ( cross- multiply )

16x = 900 ( divide both sides by 16 )

x ≈ 56.3 in² ( to the nearest tenth )

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a rectangle has an area of 30 square meter and a perimeter of 34 meters. what are the dimensions of rectangle?
kow [346]
A=lw
P=2l+2w

30=lw
34=2l+2w

30=lw --> w= \frac{30}{l}

34=2l+2( \frac{30}{l}) \\ 34=2l+ \frac{60}{l}  \\ 34l=2l^2+60 \\ 2l^2-34l+60=0 \\ 2(l-2)(l-15)=0 \\ l=2, 15

30=(2)w
15=w

30=(15)w
2=w

The dimensions can either be 15 x 2 or 2 x 15.
3 0
3 years ago
3(4) divided by ( 14-5 ) x 2
wel

Answer:

it is 2.6 that is the answer

3 0
3 years ago
The Function approximate the velocity (in feet per second) of an object dropped from a height of x feet
grin007 [14]

Answer:

The answer to the question is

It take for the golf ball hit on Mars to reach the ground 8.284 s longer.

Step-by-step explanation:

To Solve the question, we note that the equation of motion is given to us as

h = -1.9·t² + 26·t

Therefore the height

We compare the above equation with the equation of of motion

S = ut - 0.5×g×t² where u = initial velocity = 26 m/s and  - 0.5×g = -1.9

Therefore the acceleration due to gravity om mars = -1.9/-0.5 = 3.8 m/s²

We now have the time taken to maximum height given by

v = u - g·t where v = 0 at maximum height

We therefore have u = g·t → 26 = 3.8×t or t = 26/3.8 = 6.84 seconds

The time taken for ball to hit the ground is 2 × the time to reach maximum height = 2 × 6.84 = 13.684 s

The time longer it takes for the ball on Mars to complete the path up to maximum height and down again is 13.684 s - 5.4 s = 8.284 s.

8 0
3 years ago
What is the smallest angle of rotational symmetry for a square? 45ş 90ş 180ş 360ş
vitfil [10]

Answer:

Step-by-step explanation:

i think 45 because a square could be broken up into 4s

6 0
2 years ago
Read 2 more answers
Pls answer this now pls i beg u i need to past it on school :) thank you so much​
ELEN [110]

Answer: 13.85kg Hope this helps, please consider making me Brainliest.

Step-by-step explanation:

Let's add! 7 1/4 + 6 3/5 = 7.25 + 6.6

7 + 6 + .25 + .6 = 13 + .85 =

13.85

8 0
1 year ago
Read 2 more answers
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