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Law Incorporation [45]
3 years ago
9

The length of a rectangle is 4 meters longer than the width. if the area is 21 square​ meters, find the​ rectangle's dimensions.

round to the nearest tenth of a meter.

Mathematics
1 answer:
brilliants [131]3 years ago
7 0
The length of a rectangle is 4 meters longer than the width. if the area is 21 square​ meters, find the​ rectangle's dimensions. round to the nearest tenth of a meter.

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What 100-38 (656) =1000000
Likurg_2 [28]

100 - 38(656) = 1000000

100 - 24928 = 1000000

-24828 = 1000000

This is false!

Hope this helps! ;)

4 0
3 years ago
A store had 150 laptops in the month of January. Every month, 20% of the laptops were sold and 10 new laptops were stocked in th
Softa [21]

<u>Answer-</u>

\boxed{\boxed{f(n)=0.8(f(n-1))+10,\ f(0)=150,\ \ n>0}}

<u>Solution-</u>

Here, n represents the number of months and f(n) represents the number of laptops in the store after n months.

As the store had 150 laptops in the month of January or at the beginning.

So f(0)=150

Every month, 20% of the laptops were sold and 10 new laptops were stocked in the store.

As 20% of laptops were sold, so 80% were in the store.

So, after one month total number of laptops in the store,

\Rightarrow f(1)=0.8(150)+10

\Rightarrow f(1)=0.8(f(0))+10     (\because f(0)=150)

Again after one month total number of laptops in the store,

\Rightarrow f(2)=0.8\times (0.8(150)+10)+10

\Rightarrow f(2)=0.8(f(1))+10     (\because f(1)=0.8(150)+10)

Analyzing the pattern, the recursive function f(n) will be,

f(n)=0.8(f(n-1))+10,\ f(0)=150,\ \ n>0


3 0
2 years ago
Read 2 more answers
The ratio of adults to children on a field trip is 2:7. If there are 14 adults on the trip, how many children are there?​
Bas_tet [7]

Answer:

49 children

Step-by-step explanation:

Adult : Child = 2 : 7

Adult = 14

2 = 14

So, 1 = 14/2 = 1 = 7 in the ratio.

So, 7 x 7 = 49 children are there.

7 0
3 years ago
Read 2 more answers
(5x – 3y) (3x + 4y)​
MariettaO [177]

Answer:

\boxed{\red{15 {x}^{2}  + 11xy - 12 {y}^{2}}}

Step-by-step explanation:

\blue{(5x - 3y)(3x + 4y)} \\ \blue{5x(3x + 4y) - 3y(3x + 4y)} \\ \blue{15 {x}^{2}  + 20xy - 9xy - 12 {y}^{2} } \\ \pink{=  15 {x}^{2}  + 11xy - 12 {y}^{2} }

6 0
3 years ago
Read 2 more answers
See attached picture ​
lions [1.4K]

Answer:

ok i see it

Step-by-step explanation:

4 0
2 years ago
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