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photoshop1234 [79]
3 years ago
11

What’s the answer to 8-(-4)

Mathematics
2 answers:
mash [69]3 years ago
8 0

Answer:

+ 12

Step-by-step explanation:

8 - (- 4) = 8 + 4 = 12

saul85 [17]3 years ago
6 0

Answer:

12

Step-by-step explanation:

When a sign is out of parenthesis and there's an opposite sign in parenthesis the sign for that number goes opposite. So... 8-(-4) ⇒ 8 + 4 ⇒ 12

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Y=3/2x-3
Inga [223]

Answer:

the answer is (2,-6)

Step-by-step explanation:


5 0
3 years ago
Type the correct answer in each box. Round your answers to the nearest tenth.
Alexxandr [17]
To find the length of the ladder, you need to do Pythagorean theorem.
50^2 + 30^2 = x^2
2500 + 900 = x^2
x^2 =3400
x= square root of 3400
58.31 OR 10 root34

To find the angle: 
tan theta = opposite/adjacent
50/30 = 5/3
theta = tan inverse of 5/3
= 59.04
6 0
3 years ago
The length of a postage stamp is
AleksAgata [21]
<h3>Answer: Choice B</h3><h3>2W+2( W+4 1/4) = 124 1/2</h3>

=========================================

Explanation:

L = length

W = width

"The length is 4 1/4 longer than the width" (paraphrase) so

L = W + 4 1/4

This means,

P = perimeter = 124 1/2

P = 2L+2W

2L+2W = P

2W+2L = P

2W+2( L ) = P

2W+2( W+4 1/4) = 124 1/2

5 0
3 years ago
What is the present value of an investment that will pay you $97,000 in four years. assume the appropriate discount rate is 7.75
frutty [35]
Total = Principal * (1 + (rate/n))^n*years
where "n" is the number of compounding periods per year (in this case it is 365)
Total = 97,000 * (1<span>.0002123288</span>)^365*4
Total = 97,000 * (1.0002123288)^1,460
<span> <span> <span> =132,247.89 </span> </span> </span>

Source: Compound Interest Formulas:
http://www.1728.org/compint3.htm



8 0
3 years ago
What percent of 75 is 40
9966 [12]

The answer is: " 53 \frac{1}{3} % " .

__________________________________________

→ " 53 \frac{1}{3} % " of 75 is "40" .

__________________________________________

Explanation:

To solve:

\frac{x}{100} * 75 = 40 ;

→ Rewrite as:

\frac{x}{100} * \frac{75}{1} = 40 ;

→ The "100" cancels to "4" ; and the "75" cancels to "3" ;

→ {since: "{100 ÷ 25 = 4}" ; and since: "{75 ÷ 25 = 3"} ;

→ So; we rewrite the problem as:

→ \frac{x}{4} * \frac{3}{1} = 40 ;

→ which is:

\frac{x}{4} * 3 = 40 ;

→ Divide each side of the equation by "3" ;

\frac{x}{4} * 3 ÷ 3 = 40 ÷ 3 ;

to get:

→ \frac{x}{4} = \frac{40}{3} ;

Now, cross-multiply:

→ 3x = (4)*(40) ;

→ 3x = 160 ;

Divide each side of the equation by "3" ;

to isolate "x" on one side of the equation; & to solve for "x" ;

→ 3x / 3 = 160 / 3 ;

to get:

→ x = 53 \frac{1}{3} .

______________________________

6 0
3 years ago
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