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3 years ago

What is negative 1 plus positive 8

Mathematics

2 answers:

Mars2501 [29]3 years ago

7 0

Answer:

-9

Step-by-step explanation:

zysi [14]3 years ago

6 0

Answer:

Step-by-step explanation:

You can think of the negative 1 as a subtraction. What you do is ignore the negative 1, take the 8 and then subtract 1 from it.

-1+8 to 8-1

The SAME thing!

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Scientific notation of 45,000

babymother [125]

Answer: 4.5 * 10^4

Step-by-step explanation:

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2 years ago

Read 2 more answers

Help!!!!!!!!!!!! >>>>>Which number set contains all rational<br> numbers?

stellarik [79]

The only set that only has rational numbers is the first one:

{1/3, -3.45, √9}

<h3>Which of the given sets contains only rational numbers?</h3>

A rational number is a number that can be written as the quotient of two integers.

If we look at the first set, the elements are:

1/3 which is a rational number.
-3.45 = -345/100 which is a rational number
√9 = 3 = 3/1 which is a rational number.

In the other sets we can see elements like:

√37, √44, or √2 which are all irrational numbers, then the only correct option is the first one.

If you want to learn more about rational numbers:

brainly.com/question/12088221

#SPJ1

6 0

1 year ago

Does dose anyone know how to solve this?

solniwko [45]

Answer:

Width of rectangle = 6 m

Length of rectangle = 11 m

Step-by-step explanation:

Let width of rectangle = w

Length of rectangle = 3w-7

Area of rectangle = 66 m²

We need to find length and width of rectangle

The formula used is: $Area=Length \times Width$

Putting values and finding w

$Area=Length \times Width\\66=(3w-7)(w)\\66=3w^2-7w\\3w^2-7w-66=0\\$

Solve using quadratic formula: $w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

We have a=3, b=-7, c=-66

Putting values and finding w

$w=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\w=\frac{-(-7)\pm\sqrt{(7)^2-4(3)(-66)}}{2(3)}\\w=\frac{7\pm\sqrt{49+792}}{6}\\w=\frac{7\pm\sqrt{841}}{6}\\w=\frac{7\pm29}{6}\\w=\frac{7+29}{6}\:,\:w=\frac{7-29}{6}\\w=6, w=-3.6$

We get values of w as w=6 and w=-3.6

As we know width cannot be negative, so considering w = 6

So, Width = 6

Length = 3w-7 = 3(6)-7 = 18-7 = 11

So, Width of rectangle = 6 m

Length of rectangle = 11 m

6 0

2 years ago

What is the volume of a cylinder, in cubic centimeters, with a height of 8 centimeters

Arisa [49]

Answer:

1608.5 cm³

Step-by-step explanation:

Use the cylinder volume formula, V = $\pi$ r²h

If the diameter is 16 cm, then the radius is 8 cm.

Plug in the radius and height into the formula, and solve:

V = $\pi$ r²h

V = $\pi$ (8)²(8)

V = $\pi$ (64)(8)

V = 1608.5

So, to the nearest tenth, the volume of the cylinder is 1608.5 cm³

6 0

2 years ago

What function is it when an objective function is maximized.

Leokris [45]

Answer:

Linear Objective Function

7 0

2 years ago