1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Orlov [11]
1 year ago
13

10POINTS !!

Mathematics
2 answers:
emmasim [6.3K]1 year ago
3 0

Step-by-step explanation:

<h3> length </h3>

a + b = 18cm

a = 18 - b

<h3> Area </h3>

a² + b² = 212cm²

(18-b)² + b² = 212

324 - 36b + b² + b² = 212

2b² - 36b + 112 = 0

b² - 18b + 56 = 0

b² - 4b - 14b + 56 = 0

b(b-4) -14(b - 4) = 0

(b-4) (b-14) = 0

b-4 = 0 OR. b-14 = 0

b = 4 cm b = 14 cm

so 4cm < 14cm

so , length of a side of the smaller square is 4cm .......

And , large square's = 14cm .....

Dennis_Churaev [7]1 year ago
3 0

Answer:

square one sides = 14, 14

square 2 sides = 4, 4

14 + 4 = 18

14 x 14 + 4 x 4 = 212

Step-by-step explanation:

14 x 14 + 4 x 4

this is the area of the 2 being added

the sides lengths are 14 and 4

You might be interested in
If a tree 28 meters tall casts a shadow 32 meters long, what is the angle of elevation of the sun to the nearest degree?
blagie [28]
We need an angle measure we have to use an inverse trig ratio, sin^-1, cos^-1, or tan^-1.
Setting up the right triangle we have the opposite and adjacent so we use tan.
tan angle = 28/32
tan^-1 (28/32) = 41 degrees
7 0
3 years ago
Read 2 more answers
Find the roots of the quadratic equation 2x^2-x-4 =0
professor190 [17]

Answer:

I hope it will help you...

7 0
3 years ago
10^-2 + 8 round the coefficient to two decimal places​
Dahasolnce [82]

Answer:

I believe it is .0801

Step-by-step explanation:

- A negative exponent will always turn into a fraction

- First change it to a fraction

1/10^2

- Simplify the exponent

10 times 10 = 100

- Change the fraction

1/100 or in decimal form which is 0.01

- Now the addition

8 + 0.01 = <u>8.01</u>

- Move decimal to two decimal places

.0801

6 0
2 years ago
Read 2 more answers
Is it possible for two different numbers, when squared, to give the same result? What does this result tell you about solving an
Marizza181 [45]
Let x,y be two different numbers
suppose x^2=y^2
then x^2-y^2=0
which yields (x+y)(x-y)=0
so either x=y or x=-y
In any case, x and y must be the same value
also when a vairable is squared like y=x^2
we must note that there are 2 possible solutions
x=(+/-)sqrt(y)
7 0
3 years ago
Find the total surface area of this triangular prism 8cm 30cm 24cm 7cm
Alenkinab [10]

Answer:

61

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • 8th grade: identify the transformation from the original figure to the image
    9·2 answers
  • Simplify (3 to the 6th power) to the 18th power??
    7·2 answers
  • Please HELP me lol I need it !!
    6·1 answer
  • 2(5×+3)=4×+18<br><img src="https://tex.z-dn.net/?f=2%285x%20%2B%20%203%29%20%3D%204x%20%2B%2018" id="TexFormula1" title="2(5x +
    15·1 answer
  • Find the missing length, c, in the right triangle below. Round to the nearest tenth, if necessary. a. 76.3 in. b. 5.5 in. c. 3.5
    11·1 answer
  • Please Help Me with this Step by step:<br> 12-(3x+13)=0
    14·1 answer
  • What’s the value of 7 In 7(n)=50+4n
    5·1 answer
  • 3.25x+(-0.4y)+1/2 + 1/5y
    5·1 answer
  • 2 hermanos tienen una cuenta de ahorros en el banco por 1.920.000 pesos, lo que le corresponde al hermano mayor es 6 veces lo qu
    10·1 answer
  • What is the area of the small square?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!