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3 years ago

Finding missing angles please help!!! pls

Mathematics

2 answers:

Alex73 [517]3 years ago

8 0

Answer:

x = 15

Step-by-step explanation:

luda_lava [24]3 years ago

3 0

Answer:

Step-by-step explanation:

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Ming drew a triangle. The sum of the angles of the triangle is 180º.

Veronika [31]

Answer: The second matrix

If we want to write a proper matrix to represent the given system of equations, we have to arrange it in order:

$a+b+c=180$

$2a-b+0c=0$

$4a+0b-c=-5$

After this, we can write the matrix with the coefficients of each equation:

$\left[\begin{array}{ccc|c}1&1&1&180\\2&-1&0&0\\4&0&-1&-5\end{array}\right]$

Being this, the matrix that represents the measure of each angle in Ming's triangle

6 0

3 years ago

Slope is -1/2 and (-9,5) is on the line<br> the equation of the line is y= ?

Lesechka [4]

Y=-1/2x+5 because the y intercept of the two points is 5

8 0

3 years ago

Help please<br> what is<br>

dsp73

Option A. is correct for the given condition.

Lets solve it through steps of range and functions,

First of all, Solve the equation:
$f(x) = |x|+5$
$= > x = -5$ (1)

$= > x = 5$ (2)

So these would be the ranges of X in between 5 and -5.

Hence option A. $R{f(x)eR [f(x) < 5}$ is correct.

Learn more about range and functions on:

https://brainly.ph/question/10400053

#SPJ10

3 0

2 years ago

How do I simplify this?

Anastasy [175]

3/4 + 1 = 1.75 which is equivalent to 7/4
1- 3/4 = 0.25 which is equivalent to 1/4
the problem now looks like 7/4 / 1/4
you cancel out both 4
this problem simplified looks like 7/1
which is equivalent to 7 if you divide

6 0

1 year ago

What is the value of 9P5 ?

zalisa [80]

$\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \qquad \qquad _9P_5=\cfrac{9!}{(9-5)!}$

check your calculator for the [!] factorial button.

also bear in mind that most calculators also have an [ₙPᵣ] button, to get Permuations, and you can just use that.

6 0

3 years ago