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
Semmy [17]
3 years ago
14

The nile river, the longest river in the world, is 66.7x100 kilometers long. What is the nile's length?

Mathematics
1 answer:
kvasek [131]3 years ago
4 0

Well if you multiply 66.7 x 100 you get 6,670.0. When multiplying by numbers like 10, 100, 1,000, etc, just simply transfer the 0's. So in this case, there are 2 0's in 100, so you add 2 of the 0's behind 66.7.  So when you add the 2 of the 0's you get 6,670.0 which should be your answer.

You might be interested in
One root of f(x) = x + 10x2 – 25x – 250 is x = -10. What are all the roots of the function? Use the Remainder Theorem.
Natalka [10]

Answer:

-10

-5

5

Step-by-step explanation:

From the answers given, you probably mean f(x) = x^3 + 10x2 – 25x – 250

The Remainder Theorem is going to take a bit to solve.

You have to try the factors of 250. One way to make your life a lot easier is to graph the equation. That will give you the roots.

The graph appears below. Since the y intercept is -250 the graph goes down quite a bit and if you show the y intercept then it will not be easy to see the roots.

However just to get the roots, the graph shows that

x = -10

x = - 5

x = 5

The last answer is the right one. To use the remainder theorem, you could show none of the answers will give 0s except the last one. For example, the second one will give

f((10) = 10^3 + 10*10^2 - 25*10 - 250

f(10) = 1000 + 1000 - 250 - 250

f(10) = 2000 - 500

f(10) = 1500 which is  not 0.

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

f(1) = (1)^3 + 10*(1)^2 - 25(1) - 250

f(1) = 1 + 10 - 25 - 250

f(1) = -264 which again is not zero

3 0
3 years ago
Read 2 more answers
A pizza parlor offers thin, thick, and traditional style pizza crusts. You can get pepperoni, beef, mushrooms, olives, or pepper
elena55 [62]
I think there are 12 possible outcomes in the sample space. Because if you put one crust with one topping for each crust and topping it equals up to 12.
6 0
3 years ago
What is the wavelength of a 320 Hz sound traveling 330 m/s?
maw [93]

Answer:1.03125 meter

Step-by-step explanation:

Velocity =330 meter per second

Frequency =320 Hertz

wavelength=velocity ➗ frequency

Wavelength=330 ➗ 320

Wavelength=1.03125 meter

8 0
3 years ago
What is 5.712g=in kg
mel-nik [20]

Answer:

5.712g in kg is<u><em> 0.0057Kilograms</em></u>

Step-by-step explanation:

5 0
1 year ago
Read 2 more answers
(1) Let {v1,v2,v3} be a set of vectors in Rn . If u is Span {v1,v2,v3}, show that 3u is in Span {v1,v2,v3}.
Evgesh-ka [11]

Answer:

(1)

Multiplying by 3 both sides of the equality you get that

3u = 3c_1v_1+3c_2v_2+3c_3v_3

3u  is in the Span of the vectors \{v_1,v_2,v_3\}.

(2)

That's not true, consider the following counter example.

v_1 = (0,0,0,1)\\v_2 = (0,0,1,0)\\v_3 = (0,1,0,0)\\v_4 = (1,0,0,0)\\u = (0,1,1,1)

u is a linear combination of v_1,v_2,v_3 but is NOT a linear combination of v_1,v_2,v_3,v_4.

Step-by-step explanation:

(1)

As the hint indicates, you know that

u = c_1 v_1 + c_2v_2+c_3v_3

Then, if you multiply both sides of the equality by 3, you get that

3u = 3c_1v_1+3c_2v_2+3c_3v_3

And that's it. 3u  is in the Span of the vectors \{v_1,v_2,v_3\}

(2)

That's not true, consider the following counter example.

v_1 = (0,0,0,1)\\v_2 = (0,0,1,0)\\v_3 = (0,1,0,0)\\v_4 = (1,0,0,0)\\u = (0,1,1,1)

u is a linear combination of v_1,v_2,v_3 but is NOT a linear combination of v_1,v_2,v_3,v_4.

4 0
3 years ago
Other questions:
  • How do you solve this problem: 2y(6 - 1)(6 - 1) = - 200
    13·2 answers
  • A movie cost $3,254,107 to produce. What digit is in the hundred thousands place?
    15·1 answer
  • Item 19 The scale on a map is 1 cm:30 mi. The distance on the map between San Francisco, CA, and Chicago, IL, is 61.9 cm. What i
    13·1 answer
  • If your company needs to produce 7800 products by the end of the next 12 weeks how many products will you need to produce each w
    6·1 answer
  • The button on Keith's shirt has a radius of 3 cm.
    7·1 answer
  • The sales tax for an item was $26.40 and it cost $440 before tax.
    12·1 answer
  • PLZ HELP ILL MARK U BRAINLIEST!!!
    7·1 answer
  • Please help with my math I'm begging you
    5·1 answer
  • The length of a board is 2 5/8 feet long. If 5/6 of a foot is trimmed off, find the new length
    11·1 answer
  • Write in point-slope form an equation of the line through each pair of points
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!