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3 years ago

Plz hep in the picture below brainliest 98 pionts

Mathematics

2 answers:

AfilCa [17]3 years ago

6 0

The answer is 180. Here is my work:

Ghella [55]3 years ago

3 0

IT IS 180 because 12*15 is one 180 and it cant go over 187.

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Find the area of the triangle defined by the coordinates (7,1), (0,10), and (9,4). (To the nearest tenth).

Usimov [2.4K]

<h2>Answer:</h2>

$\boxed{Area=19.5units^2}$

<h2>Step-by-step explanation:</h2>

A triangle is any polygon with exactly 3 sides. Let's call this sides the vertices of the triangle, and let's say:

$(7,1)=A(7,1) \\ \\ (0,10)=B(0,10) \\ \\ (9,4)=C(9,4)$

Where:

$A=(A_{x},A_{y}) \\ B=(B_{x},B_{y}) \\ C=(C_{x},C_{y})$

A formula for finding the area of a triangle given its vertices is:

$Area=|\frac{A_{x}(B_{y}-C_{y})+B_{x}(C_{y}-A_{y})+C_{x}(A_{y}-B_{y})}{2}| \\ \\ Area=|\frac{7(10-4)+0(4-1)+9(1-10)}{2}| \\ \\ Area=|\frac{-39}{2}| \\ \\ \boxed{Area=19.5units^2}$

<em>Finally, the area of the triangle defined by the coordinates (7,1), (0,10), and (9,4), to the nearest tenth is 19.5 squared units.</em>

7 0

3 years ago

Plz help me<br> Answer this plz:

sveticcg [70]

Answer:

sss

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

I need help please please

miv72 [106K]

Answer:

The value of x is 7.

Step-by-step explanation:

First, you have to make the left side into 1 fraction by making the denormintor the same and make it into simplest form :

$\frac{x}{3} + \frac{x}{6}$

$= \frac{x \times 2}{3 \times 2} + \frac{x}{6}$

$= \frac{2x}{6} + \frac{x}{6}$

$= \frac{2x + x}{6}$

$= \frac{3x}{6}$

$= \frac{x}{2}$

Next you have to multiply both sides by 2 in order to make x the subject :

$\frac{x}{2} = \frac{7}{2}$

$\frac{x}{2} \times 2 = \frac{7}{2} \times 2$

$x = 7$

5 0

3 years ago

Can somebody find this out

Aleonysh [2.5K]

Answer:

???

Step-by-step explanation:

?????what's the question

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3 years ago

Laura sells beaded necklaces each large necklace sells for $6.80 and each small necklace sells for $5.10 how much will she earn

Alex Ar [27]

Answer:

25.5

Step-by-step explanation:

3 large necklaces equals 20.4 plus 5.10 equals 25.5

8 0

3 years ago