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3 years ago

What comes first addition or multiplication?

1 answer:

Montano1993 [528]3 years ago

8 0

The answer to this question is "MULTIPLICATION" comes first. As per the PEMDAS rule commonly used and followed in solving mathematics problems and equations, the multiplication comes first before addition. Well, the actual sequence is solving a problem using and following PEMDAS rule is PEMDAS - parenthesis, exponent, multiplication, division, addition, and subtraction. Therefore, the answer to this question is multiplication.

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What is 36:12 as a fraction in lowest terms?

Rom4ik [11]

Did you mean 36/12? If so the answer would be 3/1 or 3.

3 0

3 years ago

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 14901490 and the standard dev

kicyunya [14]

<h2>Answer with explanation:</h2>

Given : A standardized exam's scores are normally distributed.

Mean test score : $\mu=1490$

Standard deviation : $\sigma=320$

Let x be the random variable that represents the scores of students .

z-score : $z=\dfrac{x-\mu}{\sigma}$

We know that generally , z-scores lower than -1.96 or higher than 1.96 are considered unusual .

For x= 1900

$z=\dfrac{1900-1490}{320}\approx1.28$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

For x= 1240

$z=\dfrac{1240-1490}{320}\approx-0.78$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

For x= 2190

$z=\dfrac{2190-1490}{320}\approx2.19$

Since it is greater than 1.96 , thus it is unusual.

For x= 1240

$z=\dfrac{1370-1490}{320}\approx-0.38$

Since it lies between -1.96 and 1.96 , thus it is not unusual.

5 0

2 years ago

The sum of the square root of a number and 6

Anna007 [38]

Answer:

Step-by-step explanation:

4 0

2 years ago

Please answer the two questions on the photo

SIZIF [17.4K]

Answer:

a) 7 tiles

b)4 1/3 tiles*

Step-by-step explanation:

*you would need 5 tiles if the answer isn't supposed to be a fraction. 4 1/3 is the exact amount but if they are asking for whole tiles you need to put 5. since they didn't actually specifiy that i don't think you have to worry about it. i would go with 4 1/3 tiles

3 0

3 years ago

Use the angle measures and side lengths to classify the triangle. A) right scalene B) acute scalene C) right isosceles D) obtuse

timurjin [86]

A right scalene is the answer

5 0

3 years ago