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3 years ago

Which symbol replaces ? to make the statement true?

Mathematics

1 answer:

Leni [432]3 years ago

3 0

Use PEMDAS

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

3 ⋅ 12 − 12 = 36 - 12 = 24

3 ⋅ [26 − 2 ⋅ (3 + 6)] = 3 · (26 - 2 · 9) = 3 · (26 - 18) = 3 · 8 = 24

<h3>Answer: =</h3>

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Using the following data set of monthly rainfall amounts recorded for 10 randomly selected months in a two-year period, what is

Vlad1618 [11]

Answer: 0,1,5,5,8

Step-by-step explanation:

From the rule of five number summary, we have to solve and group the datasets into a single list ranging from the lowest to the highest.

On doing that , we'll have

0,0,0.5,0.5,1,1,2,2,3.5,5,5,5,5,5,5,5,7,8,8,8

From the grouping above, you can see that:

Minimum = 0

Q1 = 1

Median = 5

Q3 = 5

Maximum = 8

Therefore, the five number summary is:

0, 1, 5, 5, 8

3 0

3 years ago

ILL GIVE BRAINLIEST

weqwewe [10]

Answer:

See below

Step-by-step explanation:

I'll provide an example to help you. Let's say we were solving $x^2+5x-7=0$ and we wanted to factor the quadratic on the left side. We can't do that because the factors of -7 don't add up to 5. So we'd have to use the quadratic formula. The quadratic formula is essentially the last resort that will solve all quadratic equations, so it could be seen as a preferred method. But, unless you can factor the quadratic, it's much easier to solve.

Now let's do another one. $x^2+5x+6=0$ for example can be written as $(x+2)(x+3)=0$ and we can easily get $x=-2$ and $x=-3$ as solutions since plugging them into the factors would produce 0 (from the Zero Product Property). If we used the quadratic formula, it would take more time to plug in the variables and solve when we can just simply factor.

Hopefully, this explanation helps you to think of your discussion post!

5 0

3 years ago

You have an aquarium in the shape of a rectangular prism. The base is 4 feet by 2 feet. The height is 3 feet. How many square fe

gayaneshka [121]

A=2(l+w)h+l×w
A=2(4+2)×3+4×2
A=36+8
A=44 square feet, so there are 44 square feet of glasses were used to build aquarium. Hope it help!

3 0

3 years ago

Math help please thanks

Pepsi [2]

For most of these questions, all you would have to do is add the angles together and or subtract the larger angle from the smaller one to find the other angle. So in the first case.

You would add the angles, 26 degrees and 60 degrees to find the angle KLM which is about 90 degrees a right angle, in this case it would be 86 degrees.

Similarly, for the other question, take the larger angle, 145 degrees and subtract 61 degrees to solve for the angle that will also add to give 145 degrees,in this case it would be 84 degrees.

3 0

3 years ago

Graph a line with a slope of -2/5 that contains the point (-3,5)

kotykmax [81]

$y=-\frac{2}{5}x+\frac{19}{5}$