How many significant digits are in 80,000

Answers

Answer 1

Answer: 2 because the equation can be reduced to: 8.0 x 10^4.

Answer 2

Answer: Actually it's 5 because there is no decimal space and if you only include 8 then that means the number is actually 8.

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David's company reimburses his expenses on food, lodging, and conveyance during business trips. The company pays $60 a day for food and lodging and $0.65 for each mile traveled. David drove 600 miles and was reimbursed $3,390.Part A: Create an equation that will determine the number of days x on the trip (3 points)Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points)Part C: How many days did David spend on this trip? (1 points)

Answers

For Part B, Part A of the equation is needed.
Each day for x ($60 food and lodgings).
Miles for y (600 miles)
3390=60x+0.65y
3390=60x+.65(600)
Equation: 3390=60x+390
Subtract 390 from both sides.
3000=60x
Divide 60 on both sides.
50=x

3390=60x+390
3390=60(50)+390
3390=3000+390
3390=3390

((46-(4-2)×5))÷2-4=
I need to show my work. The answer has to be 22

Answers

$((46-(4-2)* 5))÷2-4\n (46-(2)* 5)/ 2-4\n (46-10)/ 2-4\n 36/ 2-4\n 18-4\n =14$

$((46-(4-2)\cdot5))/2-4=\n(46-2\cdot5)/2-4=\n(46-10)/2-4=\n 36/2-4=\n 18-4=\n 14$

A system of equation is shown y=-2x+b
y= 3x+b
What value of b is required so that the system has the solution (0,6)
b=
Please no link I need help badly!

Answers

Answer:

The answer is 6

Step-by-step explanation:

(0,6)

x=0,y=6

Substituting 0 for x and 6 for y

6=2(0) + b

6=b

6 = 3(0)+b

6=b

Therefore, b=6

A can of 3 tennis balls sells for $2. If Sal spent more than $24 on tennis balls, which inequality can be used to find n, the number of tennis balls Sal could have bought? Two-thirds n greater-than 24 Three-halves n greater-than 24 2 n greater-than 24 3 n greater-than 24.

Answers

Answer:

Step-by-step explanation:

i just did the test

What is the range and domain of the function : y= sqrt(x) -5 ... Can you please explain? Thanks btw the square root is only over the x

Answers

Domain of $√(x)$ - 5 : x ≥ 25 .

Range of √x - 5 : y ≥ -5 .

Given,

f(x) = √x - 5

Here,

To find the domain,

√x - 5 ≥ 0

√x ≥ 5

Squaring both sides ,

x ≥ 25 .

Thus domain of √x - 5 is x ≥ 25 .

Range of √x - 5,

To define the range of the function the value of x can not be negative as it will make the function complex .

So,

Range will be ,

y ≥ -5 .

Know more about domain and range,

brainly.com/question/30133157

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okay so basically domain =input and range =output. you can never have a negative number underneath the square root sign because it will make the answer imaginary (i), unless you are on that concept. Therefore the range is any number greater than 0. -> all real numbers greater than or = 0

for the range if you input 0 as x you will get -5, so any number you input after 0 will be greater than -5. so range is all real numbers greater than or equal to -5.

Solve each equation by graphing. Round to the nearest tenth. 6x^2+18x=0

Answers

I hope this helps you

6 (x^2+3x)=0

x (x+3)=0

x=0

x+3=0

x= -3

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