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
vodomira [7]
3 years ago
8

Please assist me with these scientific notation problems​

Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer:

The answer to your question is:

Step-by-step explanation:

1.-

Data

3.3 x 10 ⁴ pounds of paper

1.5 x 10³ pounds of aluminum

Amount of aluminum / amount of paper = 1.5 x 10³ / 3.3 x 10⁴

                                                                  = 0.045 times

                                                                 = 4.5 x 10 ⁻²

2.-

Data

1.2 x 10 ³ text messages in a month

text messages in a year = ?

                  1.2 x 10³ text messages -------------------  1 month

                     x                                   -------------------  12 months

                    x = (12 x 1.2 x 10³) / 1

                    x = 14400 text messages

                   x = 1.44 x 10⁴ text messages

3.-

Data

distance = 4 x 10⁶ miles I am not sure if the power is 6 or 8

speed = 1.6 x 10³ mi/h

Formula

              time = distance / speed

              time = 4 x 10⁶ / 1.6 x 10³

              time = 2500 h

              time = 2.5 x 10 ³ h

You might be interested in
How to multiply fractions
GREYUIT [131]
You wanna cross out numbers if they can both divide by the same number. then multiply the numbers in the same row together

5 0
3 years ago
A bakery used 38 pounds of flour to make French bread and
fomenos

Answer:

since we are not given the options, I will write down a few equations that represent the number of French bread loaves and bagels:

  • a = number of loaves of French bread
  • b = number of bagels
  • available amount of flour = 38

2a + b ≤ 38

2a ≤ 38 - b

a ≤ (38 - b) / 2

a ≤ 19 - 0.5b

b ≤ 38 - 2a

b ≤ 2(19 - a)

Hopefully one of these equations is one of the choices given to you.

8 0
3 years ago
When the sum of 8 and a certain number is increased by 12, the result is the same as the product of 3 and the number. What is th
Roman55 [17]
ANSWER: The number is 10.
Hope this helps!!

I used the variable n as the number we needed to find. The equation was n + 8 + 12 = 3n

6 0
3 years ago
(4x - 3) × (x + 2)=0
matrenka [14]

Hi,

AxB = 0 means A=0. or B=0

so 2 solutions :

4x-3= 0

4x=3

x = 3/4

and x+2 = 0.

x= -2

solutions are : -2 +and 3/4

7 0
3 years ago
Read 2 more answers
Someone please help me in this question it is kind of confusing it is a question under pre calculus in first year calculus i wil
masya89 [10]
Neither P, nor A are on the sketch 
I guess P is the upper right corner of the rectangle 
and A=(0,1) 

P belongs to the line going through (1,0) and B(0,y) 
<span>but we don't know the y-coordinate of B </span>

<span>the triangle is right and isosceles, so pythagoras a²+a²=2² ... 2a²=4 ... a²=2 ... a=sqrt2 </span>
now look at the right triangle BOA 
<span>his hypotenuse is AB=sqrt2 and the <span>the kathete</span> OA is 1 </span>
so y²+1²=(sqrt2)² ... y²+1=2 ... y²=1.. y=1 
so the coordinates of B are (0,1) 

the line going through (1,0) and (0,1) is L(x)=-x+1 

P belongs to this line, so the coordinates of P are P(x,-x+1) (0<x<1) 

b) so if that's P, the height of the rectangle is -x+1 and the width=2x 
<span>so its area A(x)=2x*(-x+1)= -2x²+2x 

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

</span>
5 0
3 years ago
Other questions:
  • Explain how you can use doubles when multiplying with4 to find 4x8?
    13·1 answer
  • Need help with this one!!!
    5·1 answer
  • Describe a way to transform each graph so that it goes through the labeled points.
    9·1 answer
  • The figure below shows a rectangle ABCD having diagonals AC and DB: A rectangle ABCD is shown with diagonals AC and BD. Anastasi
    6·1 answer
  • Sierra’s ice-cream shop made $45 before she had to close early when the power went out. She realized she lost 2/3 of a dollar ea
    7·2 answers
  • Which of the following is an equivalent simplified expression for 2(4x + 7) – 3(2x – 4) ?
    11·1 answer
  • I need help :) please and thank u if u get it right i will give u brainlist :))))):)))))
    11·1 answer
  • Which is the correct graph for the equation?
    13·1 answer
  • Which of the following equations represents an exponential relationship?
    5·1 answer
  • A country trying to decide whether to join the United Nations must determine whether it is willing to: O A. give up its own nati
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!