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
Tanya [424]
2 years ago
8

Plz help ASAP!!!!!

Mathematics
1 answer:
Umnica [9.8K]2 years ago
4 0

Answer:

Square root 112 units

Step-by-step explanation:

What's Pythagorean Theorem?

  • Pythagorean Theorem states that the square of the hypotenuse is equal to the sum of the squares of the other legs.
  • It's represented as a^2 + b^2 = c^2, where a and b are legs and c is hypotenuse

Let's use Pythagorean Theorem to solve this problem. In this problem we're giving the variables of a and c.

  • 3^2 + b^2 = 11^2
  • 9 + b^2 = 121

Now, we solve for b.

Step 1: Subtract 9 from both sides.

  • 9+b^2-9 = 121 - 9
  • b^2 = 112

Step 2: Take square root of both sides.

  • \sqrt{b^2} = \sqrt{112}
  • b = \sqrt{112}

Therefore, the answer is square root of 12 units.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

You might be interested in
8.2 x 10 ^-5 in standard notation
Mars2501 [29]
8.2*10^-5 can be also written as 0.000082, in standard notation. 
Hope this helps.
5 0
3 years ago
Please help me with this homework question. No silly answers please and no bots! I will mark brainliest to whoever gets all them
MatroZZZ [7]

Answer:

The formula for the area of the triangle is:

\displaystyle A=24x^2

When <em>x</em> = 3, the area is 216 square centimeters.

When <em>x </em>= 2.4, the area is 138.24 square centimeters.

And when <em>x</em> = 5, the hypotenuse of the triangle is 50 centimeters.

Step-by-step explanation:

We are given a right triangle with a height of 8<em>x</em> and a base of 6<em>x</em>.

The area of a triangle is given by the formula:

\displaystyle A=\frac{1}{2}bh

So, by substitution:

\displaystyle A=\frac{1}{2}(8x)(6x)=24x^2

When <em>x </em>= 3, the area will be:

\displaystyle A(3)=24(3)^2=216\text{ cm}^2

And when <em>x</em> = 2.4, the area will be:

A(2.4)=24(2.4)^2=138.24\text{ cm}^2

When <em>x </em>= 5, the height will be 8(5) = 40 cm and the base will be 6(5) = 30 cm.

By the Pythagorean Theorem:

a^2+b^2=c^2

So:

(40)^2+(30)^2=c^2

The hypotenuse will be:

c=\sqrt{1600+900}=\sqrt{2500}=50\text{ cm}

3 0
3 years ago
What is the value of x in a 30-60-90 triangle with a hypotenuse of x+12 and a longer side of x?
enot [183]
In a 30 - 60 - 90 triangle the side opposite the hypotenuse is 1/2 the hypotenuse and which will be the shorter side. Read this over a couple of times till you realize that (x + 12)/2 is the shortest side.

[(x + 12) / 2]^2 + x^2 = (x + 12)^2 subtract [(x + 12)/2]^2 from both sides.

x^2 = (x +12)^2 - [ (x +12)/2]^2
x^2 = (x + 12)^2  [ 1 - (1/2)^2] You were given this as a question in school? It seems awfully hard.
x^2 = (x + 12)^2 [3/4] 
4x^2 = 3*(x^2 + 24x + 144)
4x^2 = 3x^2 + 72x + 432
x^2 - 72x - 432 = 0 This is a quadratic, do you know what they are?
The solution to this comes to x = 77.56

I don't think I made a mistake, but it is sure possible.Check the numbers and my method. 
4 0
3 years ago
Whats is the sum (2/5x + 5/8) + (1/5x - 1/4)?
Leviafan [203]
<span>Whats is the sum (2/5x + 5/8) + (1/5x - 1/4)?
A.3/5x + 1/8
B.3/5x + 3/8
C.3/5x + 5/8
D.3/5x + 7/8

The answer is </span><span>B.)   3/5x + 3/8</span>
5 0
3 years ago
Find the volume of the pyramid.<br><br> A) 22 cm3<br> B) 264 cm3<br> C) 132 cm3<br> D) 44 cm3
Stolb23 [73]
264 cm3.
Length * width * height gives the volume of a shape.
5 0
2 years ago
Other questions:
  • Chelsea and Pedro manipulated the rational expression \dfrac{14k^3 + 7k^2}{7k^3 + 14k^2} 7k 3 +14k 2 14k 3 +7k 2 ​ start fractio
    7·1 answer
  • WILL GIVE BRAINIEST 100 PIONTS
    15·1 answer
  • Julie is going to the store to buy candles. Small candles cost $2.50 and large candles cost $4.00. She needs to buy a mix of at
    10·1 answer
  • What is mean by vertically opposite angle​
    9·1 answer
  • Solve the following equation for y: 35x-7y=49​
    8·2 answers
  • Complete the statement with equal to, greater than, or less than
    5·1 answer
  • Which parallelograms have perpendicular diagonals
    11·1 answer
  • 3x-15 complementary angles find the sum of x
    11·1 answer
  • 4(x)+2 Is -18 what is x
    15·2 answers
  • Simplify the following expression. -4(2x +6) +x2 -9
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!