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2 years ago

A triangle has angles that measure 46° and 61° what is the measure of the third angle

2 answers:

8 0

A triangle in total is 360°. So you add what you are given

46 + 61 = 107

and subtract that from 360

360 - 170 = 190

And the remainder is the last unknown angle.

So, the third angle is 190°

Svetllana [295]2 years ago

6 0

For the most part, triangle angle measures add up to 180 degrees. Therefore, all that is needed to be done to figure out the third angle measure is add up the two that are already given and subtract that from 180. The answer will be the third angle measure.

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liberstina [14]

15.

0.20*x = 0.01*x + 38 => 0.19*x = 38 =>( 19/100 )*x = 38 => x = 3800/19 => x = 200.

6 0

2 years ago

Consider 8x2 - 48x = -104.

ki77a [65]

Answer:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

Step-by-step explanation:

Quadratic Equation Solving

We have the equation:

$8x^2-48x=-104$

Divide by 8:

$x^2-6x=-13$

Now complete the squares so the left side is a perfect square of a binomial:

$x^2-6x+9=-13+9=-4$

Factoring the perfect square:

$(x-3)^2=-4$

Taking the square root:

$x-3=\sqrt{-4}$

The square root of a negative number is an imaginary number:

$x-3=\pm 2\mathbf{i}$

Solving for x:

$x=3\pm 2\mathbf{i}$

The solutions are:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

7 0

2 years ago

Can someone double check my work for this problem? I got 38°??

scoundrel [369]

We need to use Law of sine.

sin A/a = sin C/c
sin A/|CB| = sin C/|AB|

sin A/14 = sin(118⁰)/ 20
sin A = (14*sin(118⁰))/ 20

A=arcsin((14*sin(118⁰))/ 20) ≈ 38⁰

4 0

3 years ago

An algebraic expression ,using d as the variable four times a number

larisa [96]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The cost of renovating the den is $4.55 per square foot for the carpet and $1450 for a TV. Write an equation to represent the si

7nadin3 [17]

4.5X+1450=C

X represents the amount of square feet
C represents the total cost