All categories

3 years ago

A rectangle is formed by joining two squares with area 49 cm2.

Mathematics

2 answers:

Llana [10]3 years ago

7 0

7+7+7+7+7+7+7+7=56

56-14=42

answer=42cm

Minchanka [31]3 years ago

4 0

→ Chapter : Plane ←
≡ Solution:
⇔ First, we should know the size of the square side [s]:
⇒ $s^{2}=49$
⇒ $s=\sqrt{49}$
⇒ $s=7$

⇔ Find the perimeter of the rectangle [p]:
⇒ $p=(6).(s)$
⇒ $p=(6).(7)=\boxed{42}cm$
⇆ Note: Look at the picture for more clearly

You might be interested in

What is the Multiples of 8?

yan [13]

Answer: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 256, 264, 272, 280, 288, 296, 304, 312, 320, 328, 336, 344, 352, 360, 368, 376, 384, 392

Step-by-step explanation:

Basically just count by 8. Simple.

4 0

3 years ago

Read 2 more answers

( simultaneous equations)

daser333 [38]

Answer:

See method below.

Step-by-step explanation:

m/n + n/3 = 2

2/m + n = 4

First eliminate the fractions by multiplying the first equation by 3n:-

3m + n^2 = 6n...........(1)

and the second equation by m:-

2 + mn = 4m..............(2)

Now we solve using substitution:-

From equation (2):-

4m - mn = 2

m = 2 / (4 - n)

Now substitute for m in equation (1):-

6/ (4 - n) + n^2 = 6n

6 + n^2(4 - n) = 6n(4 - n)

6 + 4n^2 - n^3 = 24n - 6n^2

n^3 - 10n^2 + 24n - 6 = 0

This will not factor so we could solve this using graphical software.

To find the values of the variable m we substitute the found values of n into one of the original equations and solve for m.

6 0

4 years ago

If you wish to calculate the interest on an investment with a rate of 3.58%, what number will you plug into your equation?

irina [24]

To get a certain percentage as a decimal, all you have to do is divide this percentage by 100.

Applying this on the given question, we will find that:
3.58% = (3.58) / (100) = 0.0358

Comparing the calculated value to the given choices, we will find that the correct choice is:
c) 0.0358

6 0

3 years ago

Read 2 more answers

The volume of air in a balloon is represented by the function V (r) = four-thirds pi r cubed, where r is the radius of the ballo

Deffense [45]

Answer: You do not need calculus for this problem, as it is currently stated. Is something missing from the problem statement? If not, then just find the difference between the volumes. That will be the additional air required to inflate from the lower volume to the higher volume. For r in inches and V(r) in inches cubed,

V1(r) = (4/3)πr3

V2(2) = (4/3)π(r + 1)3

V2(r) - V1(r) = (4/3)π[(r + 1)3 - r3]

That is your function. You can simplify it further if you wish.

brainliest answer plz

hope this helps BTW

6 0

3 years ago

Read 2 more answers

Please solve this question

oee [108]

Answer: