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
scoray [572]
3 years ago
6

Multiply (1.2 ⋅ 1028) ⋅ (3 ⋅ 10−19). Express the answer in scientific notation.

Mathematics
2 answers:
insens350 [35]3 years ago
7 0

Answer: a) 3.6\cdot10^9


Step-by-step explanation:

The given multiplication problem is

(1.2\cdot10^{28})(3\cdot10^{-19})

First we open the parenthesis, and then multiply corresponding terms.

1.2\cdot10^{28}\cdot3\cdot10^{-19}\\=(1.2\cdot3)\cdot(10^{28}\cdot10^{-19})\\=3.6\cdot10^{28+(-19)}.....[\text{by using law of exponents }a^ma^n=a^{m+n}]\\=3.6\cdot10^{28-19}\\=3.6\cdot10^9

Thus, a) is the right answer.

iris [78.8K]3 years ago
5 0
The answer would be A. 3.6 × 10^9
You might be interested in
Write the equation of a rational function g(x) with vertical asymptotes at x = -3 and x = 3 , a horizontal asymptote at y = -4 a
Bezzdna [24]

Answer:

The equation for rational function for given asymptotes is

f(x)=(-4x^2-6)/{(x-3)(x+3)}

Step-by-step explanation:

Given:

vertical Asymptotes at x=3 and x=-3 and a horizontal asymptote at

y=-4 i.e parallel  to x axis.

To find:

equation of a rational function i.e function in form p/q

Solution;

the equation should be in form of p/q

Numerator :denominator.

Consider f(x)=g(x)/h(x)

as vertical asymptote are x=-3 and x=3

denominator becomes, (x-3) and (x+3)

for horizontal asymptote to exist there should have same degrees  in numerator and denominator which of '2'

when g(x) will be degree '2' with -4 as coefficient and dont have  any real.

zero.

By horizontal asymptote  will be (-4x^2 -6)

The rational function is given by

f(x)=g(x)/h(x)

={(-4x^2-6)/(x-3)(x+3)}.

3 0
3 years ago
Factor Completely -5x^3 + 10x^2
Anit [1.1K]

Answer:

D

Step-by-step explanation:

Given

- 5x³ + 10x² ← factor out - 5x² from each term

= - 5x²(x - 2)  → D

6 0
3 years ago
Read 2 more answers
Why is 3.3 > 3.2999 please can any explain
photoshop1234 [79]

Answer:

Step-by-step explanation: its cuz 3.3 is a equal to 3.30000 so 3.2999 would be less than it as it is just becoming smaller and smaller but whilst still staying the same number so 3.3000000=3.3 just like 3.29999999=3.29 all it is, is the repeating function in decimals.

5 0
2 years ago
Determine whether the given value of the variable is the solution of the equation (4-9)
Katen [24]

Answer: what do you think is the answer

Step-by-step explanation:

6 0
3 years ago
5x-y=7
seropon [69]

Answer:

see graph of y = 5x - 7

Step-by-step explanation:

If graphing is the task, you should rewrite the equation in a y = ax + b form. All straight lines can be described in this form, only the a and b determine which line it is.

Your equation 5x-y=7 has the 5x on the left side, so lets move it to the right. It will get a negative sign (this is the same as subtracting 5x like you did in your picture)

5x - y = 7

-y = 7 - 5x

Now we still have the -y which should be a +y. So we multiply left and right with -1 and get:

y = -7 + 5x

If we swap the -y and 5x (we can, because they are just an addition), we get:

y = 5x - 7

Now the equation is in its "normal" form. It's like the y = ax + b with a and b chosen as a=5 and b=-7.

The normal form is handy because you can immediately see the slope is 5 and the intersection with the y-axis is at y=-7.

3 0
3 years ago
Other questions:
  • Anothony went out to eat dinner, and the meal cost $50.00. of Anthony received a 15% discount, what was th3 toy value of the dis
    5·1 answer
  • What are the coordinates of the center of the ellipse shown below?
    7·2 answers
  • What is the gcf and lcm of 35 and 56
    10·1 answer
  • How much is a penny and a quarter
    12·2 answers
  • Round 132,463,217 to the nearest hundred million<br><br> first person is brainliest
    10·1 answer
  • Factor of <br> −21x^2+2x+8
    12·1 answer
  • Please help ME!!!!
    14·1 answer
  • when asked to write a point slope equation for a line passing through the points (-3,5) and (2,4) , a student wrote y-4=9/5(x-2)
    12·1 answer
  • Which one? I need help
    13·1 answer
  • What is the y-intercept of the line that passes through the points (2, -1) and (-3, 9)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!