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ozzi
3 years ago
6

.........................

Mathematics
1 answer:
malfutka [58]3 years ago
8 0
Pay attention in math class! in higher grade levels, this is gonna show up EVERYDAY! no joke
In these types of problems, you need to use PEMDAS also.

((4)+3)+(13(-2)-5)
(7)+(-31)
7-31
-24
<u><em>C</em></u>

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2/5 x - 5 = 2/3<br> help pleasee
salantis [7]

Answer:

exact form is x=85/6

decimal form is x=14.16 repeating

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4 0
2 years ago
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Help please this is due soon! I need you to show the work as well &lt;3 pic below
Dafna1 [17]

Answer:

perimeter: 4x+2 area: x^2+x

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Solve the system of equations.<br> 5y – 4c = -7<br> 2y + 4x = 14
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Step-by-step explanation:

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ratelena [41]
Hey I just started this test to that's funny lol
7 0
3 years ago
A triangle can have at most ________ right angle.
andrey2020 [161]
A triangle can only have at most one right angle.

Here's a proof that shows why this is so:

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Let's show that having two right angles is impossible

Let A = B = 90

90 + 90 + C = 180

180 + C = 180

Subtract 180 from both sides

C = 0

We cannot have an angle with 0 degrees in a triangle. Thus, it is impossible to have 2 right angles in a triangle.

Let's try to show that it's impossible to have 3 right angles

Let A = B = C = 90

90 + 90 + 90 = 180 ?

270 ≠ 180

Thus it's impossible to have 3 right angles as well.

Let's show that is possible to have 1 right angle

Let A = 90

90 + B + C = 180

Subtract both sides by 90

B + C = 90

There are values of B and C that will make this true. Thus, a triangle can have at most one right angle.

Have an awesome day! :)
3 0
2 years ago
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