All categories

3 years ago

In pathagrean theorem if c is 17 and b is 15 what is a

Mathematics

2 answers:

sertanlavr [38]3 years ago

6 0

Answer:

a=8

Step-by-step explanation:

Pythagorean Theorem is:

a^2+b^2=c^2

Plug 15 in for b and 17 in for c

a^2+15^2=17^2

a^2+225=289

Subtract 225 on both sides

a^2=64

Take the square root of both sides

a=8

Hope this helped! :)

Scorpion4ik [409]3 years ago

5 0

Answer: a = 8

Step-by-step explanation:

use the equation a^2 + b^2 = c^2

c = 17, b = 15

a^2 + 15^2 = 17^2

a^2 + 225 = 289

a^2 = 64

a = 8

You might be interested in

the sum of Julio's and Charles's age is 44 years. seven year from now, Julio will be twice Charles's age. how old is each one no

Wewaii [24]

J + C = 44

J + 7 = 2C

I hope this helps. :)

3 0

3 years ago

Read 2 more answers

Which statements are true about a triangular pyramid? Check all that apply.

miss Akunina [59]

Answer:

It has exactly four faces that are triangles.

It has 4 vertices.

It has 6 edges.

Step-by-step explanation:

A triangular pyramid is also termed as a tetrahedron.

The properties of a triangular pyramid include:

four triangular faces,
six edges
four vertex corners.

Among the four faces, any one of them can be considered to be the base of the pyramid.

The faces are of equal shape and size.

The edges have the same length.

The triangles are equilateral.

4 0

2 years ago

Read 2 more answers

Find the value of the trig function indicated

Lera25 [3.4K]

Answer:

$\cos(\theta)=\frac{4}{5}$

Step-by-step explanation:

Step 1:

Let us find the missing side. We know this is a right triangle, so we can use the pythagorean thereom to find the last side. Let us set 12 as variable a, 20 as variable c, and the unknown side as variable b.

$a^2+b^2=c^2\\12^2_b^2=20^2\\b^2=400-144\\b^2=256\\b=\pm16$

We do know that a length can never be negative, so the side b would be 16.

Step 2:

According to SOHCAHTOA, cosine is utilizes the adjacent and hypotenuse of the given angle theta. Let us write the equation:

$\cos(\theta)=\frac{adjacent}{hypotenuse} \\\\\cos(\theta)=\frac{16}{20} \\\\\cos(\theta)=\frac{4}{5}$

I hope this helps! Let me know if you have any questions :)

6 0

3 years ago

5. Find the area of an equilateral triangle with radius 8 m. Leave your answer in simplest radical form.

EastWind [94]

Radius,r=8√3 m

Height of triangle ,h=2r ⇒ 16√3 m

Side of the triangle ,a=16√3/sin60 ⇒ 32 m

Area of the triangle,

A=√3/4(a²)

A =√3/4(32²)

A =443.4 m²

7 0

2 years ago

Read 2 more answers

Janine found a perfect sundress for 30% off. The original price, before tax, was $60. What was the sale price of the dress befor

Mazyrski [523]

60 * .30 = 18

60 - 18 = $42

7 0

2 years ago