What is the area of the triangle

Mathematics

2 answers:

raketka [301]3 years ago

7 0

A = 1/2b*h = 0.5*9*10 = 45 m^2

Ludmilka [50]3 years ago

4 0

Wouldn't the formula be a×b/2?

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12 is 8% of what number?

jeka57 [31]

We can also say this in another way ... (8% of what number is 12?)
let a be the number of which 8 % is 12 ....
8/100 x a =12 
a=12 x 100/8 
a=(6/4) x 100 
a=(3/2) X 100
a = 150 

now if u want to check your answer.. substitute the value of a .....
(8/100) x 150=12 ....

Hope it helps !!!

7 0

3 years ago

Read 2 more answers

Jamie needs to determine the distance across a river. She selects a rock, R. on the opposite river bank. She finds a tree, T. on

Elina [12.6K]

9514 1404 393

Answer:

RT = 75 yards

Step-by-step explanation:

Triangle TCB is congruent to triangle TCR by ASA. (Side TC is between angles T and C.)

Then RT = BT = 75 yards.

4 0

3 years ago

Quadratic Formula to solve the equation x^2- 4x = - 7

mylen [45]

roots of the equation x^2- 4x = - 7 are 2+3i and 2-3i

What are the natures of root of quadratic equation?

Case I: $4ac > b^2$

The roots of the quadratic equation $ax^2 + bx + c = 0$ are real and unequal when a, b, and c are real numbers, a 0, and the discriminant is positive.

Situation II: $b^2$ $-4ac$ =0

The roots and of the quadratic equation $ax^2 + bx + c = 0$ are real and equal when a, b, and c are real numbers, a 0, and the discriminant is zero.

Case III: $b^2$ $-4ac$ <0

The quadratic equation $ax^2 + bx + c = 0$ has roots when a, b, and c are real numbers, a 0, and the discriminant is negative, but these roots are not equal and are not real. We refer to the roots in this instance as fictitious.

Case IV: Perfect square and $b^2 - 4ac > 0$

The roots of the quadratic equation $ax^2 + bx + c = 0$ are real, rational, and unequal when a, b, and c are real numbers, a 0, and the discriminant is positive and perfect square.

Quadratic Formula $x={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}$