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
Felicia has a box of 16 cookies. if she divides all of the cookies up evenly among the 7 children she watches at the day care, h
Arturiano [62]
Each child will get 2 cookies,with two leftover. Technically 2.28, but rounding to a whole number is 2, because you wouldnt give a child .28 of a cookie lol
5 0
3 years ago
Read 2 more answers
What is the height of an equilateral triangle with side lengths of 14?
olganol [36]
If Each side of an equilateral triangle<span> is 10 m. ... Thus </span>triangle<span> APC is a right</span>triangle<span>. The length of CA is 10 m, and the length of PC is 5 m, and hence you can use Pythagoras' theorem to find the length of AP, which </span>is the height<span> of the </span>triangle<span>ABC.
</span>If Each side of an equilateral triangle<span> is 10 m. ... Thus </span>triangle<span> APC is a right</span>triangle<span>. The length of CA is 10 m, and the length of PC is 5 m, and hence you can use Pythagoras' theorem to find the length of AP, which </span>is the height<span> of the </span>triangleABC. 
5 0
4 years ago
Read 2 more answers
Martin can travel 174 miles in 3 hours. At this rate, how far can he travel in 7.
Blizzard [7]

Answer:

I believe the answer is 406 miles.

Let me know of this is the correct answer

7 0
3 years ago
Diameter = 18 cm
miskamm [114]

Answer:   B. 254.34 cm^2

Step-by-step explanation:

The area of a circle is pi times the radius squared.

Using the diameter we have to find the radius.

The diameter is two times the radius meaning that the radius is half the diameter.

18/ 2 = 9

The radius will be 9 cm

Now using the formula   v= pi * r^2    ,  input the value for pie and the radius and solve for  v  the volume

v = 3.14 * 9^2

v= 3.14 * 81

v = 254.34 cm^2

7 0
3 years ago
Read 2 more answers
PLEASEEE HELP<br> Questions 4 and 5
Ilya [14]

Answer:

  • Given and explained below.

question 4

using sine rule:

\sf sinx = \frac{opp}{hyp}

\sf sinx = \frac{11}{13}

\sf x = sin^{-1}(\frac{11}{13} )

\sf x = 57.8

question 5

using cosine rule:

\sf cosx =\frac{adj}{hyp}

\sf cos(31) =\frac{x}{17}

\sf cos(31)*17 =x

\sf x = 14.6

4 0
2 years ago
Read 2 more answers
Other questions:
  • Y varies directly with x , and x=3 when y=16 . What is x when y=40
    13·1 answer
  • Simplify 6a+11b-3a-4b ?????
    7·2 answers
  • I need help finding the slope of a line
    13·1 answer
  • Michelle wants to make cupcakes for her daughter's birthday. The recipe calls for 3/4 cup of brown sugar, 1 1/2 cups of white su
    15·1 answer
  • what are the slope and the y- intercept of the line described by the equation y=4x-7? a. slope:4; y-intercept0,7) b. slope: -7:
    7·1 answer
  • 5.62 × 0.7 = 2.68 × 1.35<br> True or false?
    11·2 answers
  • A Stability cable is attached to the top of an electricity pole and then stretched to the ground.The pole is 4.5m tall while it
    12·1 answer
  • Mrs anglin is driving her car at a constant speed of 90 miles in 2 hours select three statements that are true based on her spee
    14·1 answer
  • The population of a certain bacteria doubles every 24 hours. How many times as great is the population after 5 days as the popul
    6·1 answer
  • PLEASE HELP ASAP
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!