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3 years ago

What the heck does this mean? -(-) =

Mathematics

2 answers:

sweet [91]3 years ago

8 0

It means positive I guess because a negative with a negative is positive

Bond [772]3 years ago

3 0

Answer:

Step-by-step explanation:

++ = +

+- = -

-+ = -

-- = +

Example:

-1 x -1 = 1

1 x -1 = -1

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Lincoln, Nebraska lies directly North of Dallas, Texas. Lincoln is at a latitude of 40.5

vfiekz [6]

Answer:

The angular speed of a point on Earth is

π12

radian per hour. The Equator lies on a circle of radius approximately 4000 miles. Find the linear velocity, in miles per hour, of a point on the Equator.

Step-by-step explanation:

7 0

3 years ago

A pool in the shape of a rectangle prism is being filled with water. The length and width is 24 feet and 15 feet. If the hight o

hram777 [196]

Check the picture below.

$\textit{volume of a rectangular prism}\\\\ V=Lwh~~ \begin{cases} L=length\\ w=width\\ h=height\\[-0.5em] \hrulefill\\ L=24\\ w=15\\ h=1\frac{1}{3} \end{cases}\implies V=(24)(15)(1\frac{1}{3})\implies \stackrel{in~ft^3}{V}=(24)(15)(\frac{4}{3}) \\\\\\ \stackrel{\textit{converting all feet to inches}}{\stackrel{in~in^3}{V}=(24\cdot 12)(15\cdot 12)(\frac{4}{3}\cdot 12)}\implies V=(288)(180)(16)\implies V=\stackrel{in^3}{829440}$

7 0

2 years ago

A company sells boxes of duck calls (d) for $35 and boxes of turkey calls (t) for $45. they make batches of duck calls that fill

SIZIF [17.4K]

Answer:

Option A is the correct choice.

Step-by-step explanation:

Let d be the number of boxes of duck calls and t be the number of boxes of turkey calls.

We have been given that a company sells boxes of duck calls for $35 and boxes of turkey calls (t) for $45, so the revenue earned from selling d boxes of duck and t boxes of turkey call will be 35d and 45t respectively.

Further, the company plan to make $300. We can represent this information as:

$35d+45t=300...(1)$

We are also told that they make batches of duck calls that fill 6 boxes and batches of turkey calls that fill 8 boxes. the company only has 42 boxes. We can represent this information as:

$6d+8t=42...(2)$

$6d=42-8t...(2)$

Therefore, our desired system of equation will be:

$35d+45t=300...(1)$

$6d=42-8t...(2)$

8 0

2 years ago

Agustin solved an equation as shown. What error did Agustin make? What is the correct answer?

Hitman42 [59]

Subtract 3/4x from both sides

1/3x-4-3/4x= 3/4x+1-3/4x

-5/12x-4=1

Add 4 to both sides

-5/12x-4+4=1+4

-5/12x=5

Multiply both sides by 12/(-5)

(12/-5)*(-5/12x)= (12/-5)*(5)

x= 12

I hope that's help.

3 0

2 years ago

Help me////////////////////////////////

Sophie [7]

Answer:

Step-by-step explanation:

You need two facts

The smallest angle is opposite the smallest side
The name is the letter not making up the line.

RP is the smallest side

Q is the smallest angle

PQ is the next smallest side

R is the next smallest angle

QR is the largest side

P is the greatest angle

<Q <R <P is the correct order from smallest to largest

That's the second one from the top.

8 0

2 years ago