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
Harlamova29_29 [7]
3 years ago
14

Find the simplified form of the expression. Give your answer in scientific notation. (8x10^4)(9x10^-8)

Mathematics
2 answers:
Maslowich3 years ago
8 0
7.2x10^-3 is the correct answer :)

Orlov [11]3 years ago
6 0
<span>you just have to multiply the bases. 3 x 9 = ? add the exponents of the base 10 10^8(10^7)= 10^(8+7)</span>
You might be interested in
A communications tower is supported by two wires, connected at the same point on the ground. One is attached to the tower at D a
viktelen [127]

Answer:

10.99 m

Step-by-step explanation:

✍️What we are basically asked to solve here is to find the distance between C and D.

To find CD, find the length of BC, and BD. Their difference will give us CD.

Thus, BC - BD = CD.

✍️Finding BC using trigonometric ratio formula:

\theta = 30 + 10 = 40

Opposite side = BC = ??

Adjacent side = 42 m

Thus:

tan(\theta) = \frac{opposite}{adjacent}

Plug in the values

tan(40) = \frac{BC}{42}

Multiply both sides by 42

tan(40) \times 42 = \frac{BC}{42} \times 42

35.24 = BC

BC = 35.24 m

✍️Finding BD using trigonometric ratio formula:

\theta = 30

Opposite side = BD = ??

Adjacent side = 42 m

Thus:

tan(\theta) = \frac{opposite}{adjacent}

Plug in the values

tan(30) = \frac{BD}{42}

Multiply both sides by 42

tan(30) \times 42 = \frac{BD}{42} \times 42

24.25 = BD

BD = 24.25 m

✍️How much below the top of the tower is the shorter one attached:

Thus,

BC - BD = CD

35.24 m - 24.25 m = 10.99 m

7 0
3 years ago
MATH PLEASE HELP ASAP
Dahasolnce [82]

Answer:

c. 59.3 ft²

Step-by-step explanation:

½× [(3.14×5²) + (10×4)]

= ½ × (78.5+40)

= ½× 118.5

= 59.3

7 0
3 years ago
Graph the function y = 8 –. Which is the best approximation of a point on the function? (4.4, 3.421) (4.6, 4.232) (5.2, 4.025) (
Trava [24]

Answer: (5.9, 3.781)

6 0
3 years ago
A patrolman spends three times as many hours patrolling as she does completing paper work. If she works 36 hours per week, how m
fomenos

Answer:

27 hours

Step-by-step explanation:

Let her work "x" hours for paperwork

Since, patrolling amount of hours is THREE TIMES that,

Patrolling = 3x hours

Total Hours = 36

That is including paperhour work (x) and patrolling (3x). So we can setup an equation in x and solve for x first:

x + 3x = 36

4x = 36

x = 36/4

x = 9 hours

Amount of Hours for Patarolling = 3x hours = 3(9) = 27 hours

So, she spends 27 hours patrolling

4 0
3 years ago
Match the fraction with its equivalent decimal form of the number.
bagirrra123 [75]

Answer:

  see below

Step-by-step explanation:

The overbar on decimal digits means they repeat forever.

Any fraction with a denominator consisting of powers of 2 and/or 5 will terminate. These can be converted to decimal by multiplying the fraction by a number to make the denominator an appropriate power of ten.

  1 2/3 = 1.66666666666... repeating

  1 3/5 = 1 (3·2)/(5·2) = 1 6/10 = 1.6

  1 1/4 = 1 (1·25)/(4·25) = 1 25/100 = 1.25

  1 33/50 = 1 (33·2)/(50·2) = 1 66/100 = 1.66

Of course, your calculator can tell you the decimal equivalents, too.

3 0
3 years ago
Other questions:
  • A gravel company sells gravel by the cubic yard and charges a flat delivery fee. The table shows the total cost C based on the a
    13·1 answer
  • The drama club is selling short-sleeved shirts for $5 each, and long-sleeved shirts for $10 each. They hope to sell all of the s
    16·2 answers
  • Find the sum of the measures of the interior angles of each of the following convex polygons: a pentagon, an octagon, a dodecago
    8·2 answers
  • What is 1 1/4 + ( 3 2/3 + 5 3/4)?
    8·1 answer
  • How to solve 4x-y=3<br> 3x+y=4 <br> using subsitution
    5·1 answer
  • Simbolizar: un medio de x
    15·1 answer
  • 6. The temperature of an iron block decreases from 85°C to 25°C. If the mass for
    10·1 answer
  • What is the slope of this line select 1 answer
    11·1 answer
  • 2x+2y=4y+x , x+y+2x+2y=180
    7·1 answer
  • You spin the spinner once.<br> What is P(odd or divisor of 9)? Enter your answer as a percentage.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!