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lesya [120]
3 years ago
9

A square has a side lengths of 9, use the pythagorean theorem to find the length of the diagonal

Mathematics
2 answers:
AnnyKZ [126]3 years ago
3 0
The diagonal length is 12.73 units
hodyreva [135]3 years ago
3 0

{a}^{2}  +  {b}^{2}  =  {c}^{2}  \\  {9}^{2}  +  {9}^{2}  =  {c}^{2}  \\  {81} + 81 =  {c}^{2}  \\ 162 =  {c}^{2}  \\  \sqrt{162}  =  \sqrt{ {c}^{2} }  \\ 12.73 = c
the length of the diagonal is 12.73
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For a set of five whole numbers, the mean is 4, the mode is 1, and the median is 5. What are the five numbers?
zmey [24]
SO we need 5 numbers that equal to 20, with 5 being the middle number, and ones being the most used number so

1 1 5 x y

According to this, x and y must equal 13 and both be bigger then 5. Because we can rule out every other number, x and y must be 6 and 7.

Your 5 numbers are 1, 1, 5, 6, 7.
5 0
3 years ago
Solve the equation <br>y=2x-4, 3x+y=11​
Ostrovityanka [42]

Answer:

(3, 2)

Step-by-step explanation:

Given the 2 equations

y = 2x - 4 → (1)

3x + y = 11 → (2)

Substitute y = 2x - 4 into (2)

3x + 2x - 4 = 11

5x - 4 = 11 ( add 4 to both sides )

5x = 15 ( divide both sides by 5 )

x = 3

Substitute x = 3 into (1) for corresponding value of y

y = (2 × 3) - 4 = 6 - 4 = 2

Solution is (3, 2)

5 0
3 years ago
Read 2 more answers
Please help me please hurry
Naya [18.7K]

Answer

899

Step-by-step explanation:

99

8 0
3 years ago
Every 3 weeks 8 students will lose their metro cards... How many will lose it in 9 weeks
Marina86 [1]
First we must divide 9 by 3.

9/3 = 3

Then multiply it by 8

3*8 = 24. Hope this helps!

7 0
4 years ago
Read 2 more answers
Paula, the local baker, usually makes 1"5 loaves of bread and 10 cakes per day, but today she made 25 loaves of bread and 12 cak
frozen [14]

Answer:

the percentage increase for bread and cake is 66.67% and 20% respectively  

Step-by-step explanation:

The computation of the percentage increase for each bakery item is shown below:

For bread

= (25  - 15) ÷ 15

= 66.67%

For cakes

= (12 - 10) ÷ (10)

= 20%

Hence, the percentage increase for bread and cake is 66.67% and 20% respectively  

3 0
3 years ago
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