All categories

3 years ago

What is the value of a? Enter your answer in the box.

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

7 0

Answer:

a = 15

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

a^2 + 20^2 = 25^2

a^2 + 400 = 625

Subtract 400 from each side

a^2 = 225

Take the square root of each side

sqrt (a^2) = sqrt(225)

a = 15

You might be interested in

11x<-66 what is the answer

melomori [17]

11 x < - 66

x < - 66 / 11

x < - 6

hope this helps!

8 0

3 years ago

What is a matrix for a system of equations that does not have a unique solution?

vlada-n [284]

A system of linear equations can have no solution, a unique solution or infinitely many solutions. A system has no solution if the equations are inconsistent, they are contradictory. for example 2x+3y=10, 2x+3y=12 has no solution. is the rref form of the matrix for this system.

This is in my opinion. Im not sure if it is correct or not but Good luck!

4 0

3 years ago

A=4ℼR2 solve for R<br> SHOW ALL STEPSSSSSSSSSSSSS

GuDViN [60]

Given problem;

A = 4 π R²

To solve for R, we have to make it the subject of the expression.

Since

A = 4 π R² , follow these steps to find R;

Multiply both sides by $\frac{1}{4\pi }$

A x $\frac{1}{4\pi }$ = $\frac{1}{4\pi }$ x 4 π R²

$\frac{A}{4\pi }$ = R²

Then find the square root of both sides

√R² = $\sqrt{\frac{A}{4\pi } }$

R = $\sqrt{\frac{A}{4\pi } }$

The solution is $\sqrt{\frac{A}{4\pi } }$

3 0

4 years ago

list as many combinations of three dimensions you can come up with that would give you a volume if 1536 cubic feet.

Monica [59]

Answer:

1.) Length = 8ft, width = 8ft, height = 24ft

2.) Length = 8ft, width = 16ft, height = 12ft

3.) Length = 8ft, width = 24ft, height = 8ft

4.) Length = 8ft, width = 32ft, height = 6ft

5.) Length = 6ft, width = 8ft, height = 32ft

6.) Length = 16ft, width = 4ft, height = 24ft

7) Length = 12ft, width = 8ft, height = 16ft

8.) Length = 2ft, width = 64ft, height = 12ft

9.) Length = 48ft, width = 16ft, height = 2ft

Step-by-step explanation:

To obtain a volume of 1536 cubic feet:

This means Length × width × Height equals 1536ft^3

1.) Length = 8ft, width = 8ft, height = 24ft

2.) Length = 8ft, width = 16ft, height = 12ft

3.) Length = 8ft, width = 24ft, height = 8ft

6 0

3 years ago

What is the slope of y=-4x+5

myrzilka [38]

Answer:

the slope is -4.

Step-by-step explanation:

To find the slope, look at the number in front of the x which is known as the coefficient. Hope this helps :)

5 0

3 years ago

Read 2 more answers