1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nexus9112 [7]
3 years ago
15

Work out (8×10^-2)−(4×10^-4) Give your answer in standard form.

Mathematics
2 answers:
creativ13 [48]3 years ago
8 0
The answer is -39,200

Explanation:
If you do (8x10^-2) that would = 800
And then if you do (800 - 4 x 10^-4) = 10 x 10 x 10 x 10 = -39,200
tiny-mole [99]3 years ago
7 0

Answer:

7.96 x 10^2

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10

. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

You might be interested in
15 POINTS!! I NEED TO KNOW THE ANSWER WITHIN 2 HOURS!!! PLEASE HELP!!
iogann1982 [59]
<h3>Answer: x*a^2 or a^2*x</h3>

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

Work Shown:

a^(b+2) = a^b*a^2 ... break up the exponent

a^(b+2) = x*a^2 ... replace a^b with x

We don't know the value of 'a' nor the value of x, so we cannot evaluate further. This is the same as a^2*x because order of multiplication does not matter. For example, 2*3 = 6 and 3*2 = 6, so 2*3 = 3*2.

8 0
3 years ago
Read 2 more answers
What is the area of Vivian’s garage door?
sergey [27]

The area  of Vivian’s garage door is 62.5 square feet

<h3>Area of composite shape.</h3>

The Vivian garage is made up of a trapezoid and a rectangle. The area of the door is expressed as;

Area = Area of rectangle + area of trapezoid

Area = (5 * 8) + 0.5(7 + 8)*3
Area= 40 +22.5
Area = 62.5 square feet

Hence the area  of Vivian’s garage door is 62.5 square feet

Learn more on composite shapes here: brainly.com/question/8370446

#SPJ1

3 0
2 years ago
Please HELPPP it’s timed test
MissTica

Answer:b

Step-by-step explanation:

4 0
4 years ago
Explain the process to solve the equation. Use proper
Rudik [331]

Answer: x = 5/2 or 2.5

Step-by-step explanation:

1/4x = 5/8

To find the value of X;

We multiply both sides by 4

1/4 x × 4 = 5/8 × 4

x = 5/2 or 2.5

7 0
2 years ago
Read 2 more answers
In a newspaper, it was reported that yearly robberies in Springfield were up 5% to 84 in 2012 from 2011. How many robberies were
Kazeer [188]

Answer:

80 robberies

Step-by-step explanation:

Robberies in 2011 = 84/105 * 100 =80

8 0
3 years ago
Other questions:
  • Round 1714.92 to the nearest hundredth
    8·1 answer
  • The image below shows two parallel lines cut by a transversal. What is the measure of angle 1?
    15·2 answers
  • What is the domain of the graph below?
    12·2 answers
  • 0.8-4x=-0.4y 6x+0.4y=4.2 Which of the following shows the system with like terms aligned? 4x - 0.4y = -0.8 6x + 0.4y = 4.2 -4x +
    13·2 answers
  • a square is constructed on side AD of quadrilateral ABCD such that FA lies on AB, as shown in the figure. If AD:AB=2:5, the coor
    5·1 answer
  • What is 660 yds converted to mi and the process?
    6·1 answer
  • Solve for x.(x+1)(3x+4)=0
    6·1 answer
  • The highest land in Saskatchewan is Cypress Hills, at 1468m above sea level. Lake Athabasca shoreline at 65 m above sea level. E
    8·1 answer
  • Find the circumference of each circle.
    7·2 answers
  • A farmer buys a tractor for rs.70000 and after using it for some time, he sells it at a loss of 5% to another farmer. He also se
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!