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3 years ago

With explanation plz.. ( -2) + 9 * 10 Order of Operation

2 answers:

6 0

Remember PEMDAS.
Parenthesis
Exponent
Multiplication/Division
Addition/Subtraction
First you see if there is anything that needs to be solved in perentheses. Insidently there is not. The only thing that is in perentheses is an integer and not an equation. Then you see if there is any exponents, yet again there is not. Next you find any Multiplication or Division. These go together and are solved from left to right in this equation there is a multiplication. Finally you solve the additon and subtraction together. There is an instance of this as well. Here is how to work it out.
(-2) + 9 * 10
= (-2) + 90
= 90 - 2
= 88
((-2) + 90 is the same thing as 90 - 2 so you can write it that way if it is easier for you)

Hope this helps!!!

kondor19780726 [428]3 years ago

3 0

Parentheses, Exponent, Multiply, Division, Addition, Subtraction is your order (aka PEMDAS). Multiply 9x10 which gives you 90, then add -2 (or subtract 2) and your answer is 88.

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What is the value of x? Enter your answer in the box

AfilCa [17]

Answer:

Step-by-step explanation:

Triangles equal up to 180 degrees therefore you do the following to solve this equation. So you have 80 and 55. So you add 80 to 55 and you get 135. Now you subtract 180 by 135 and that equals 45. So x=45. I will write it out as well.

55+80=135

180-135=45

x=45

To check.

80+55+45=180

7 0

3 years ago

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N+ 12 = -24<br><br> Help please

omeli [17]

Answer:

n = -36

Step-by-step explanation:

The answer is -36 because:

1) We first have to subtract -24 and 12 to find n

-24 - 12 = -36

This is because whenever there are two negative signs, multiply it.

Negative x Negative = Positive

We have to do, 24 + 12 which is 36. Finally, we just put the greater number's sign to the answer. 24 is greater than 12, therefore, we put a negative sign before 36.

Hope this helps!

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3 years ago

A triangle has sides with lengths of 6 miles, 14 miles, and 15 miles. Is it a right triangle?

maks197457 [2]

Answer:

the triangle is not right angled traingle

Step-by-step explanation:

For a right angle triangle

$a^{2}$ + $b^{2}$ = $c^{2}$ where a is the base , b is the height and c is the hypotenuse

taking a= 6 b = 14 and c = 15

hence $6^{2}$ + $14^{2}$ = $15^{2}$

36+196 = 232 which is not equal to 225

therefore the triangle is not right angled traingle

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3 years ago

HELP ME PLEASE! (25 POINTS!)

kumpel [21]

Answer:

Step-by-step explanation:

$60 * 3% = $1.80

y = 1.80x + $60

12 * 2 = 24

24 = x

y = 1.80(24) + $60

y = $43.20 + $60

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3 years ago

Is the line for the equation y = 1 horizontal or vertical? What is the slope of this line? Select the best answer.

Lilit [14]

Any line y=m is horizontal. The y-coordinate of any point lying on such line is m, only x-coordinates change.

If y=1, then two points on the line are (x₁,1) and (x₂,1).

$\hbox{the slope: } m=\frac{y_2-y_1}{x_2-x_1}=\frac{1-1}{x_2-x_1}=\frac{0}{x_2-x_1}=0$

So, the slope of this and any horizontal line is 0.

The answer is a.

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3 years ago

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