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
scZoUnD [109]
3 years ago
10

What is 47000000 in scientific notation

Mathematics
2 answers:
mixas84 [53]3 years ago
8 0

Answer:

4.7 * 10^7

Step-by-step explanation:

Put a decimal at the end.

47 000 000.

Count the places to the left of the decimal.

There are 6 zeros and one more place to get a number between 1 and 10.

1 ≤ x < 10 ( note that 10 is not included).

There are 6 + 1 places to move.

Answer: 4.7 * 10^7

Sedbober [7]3 years ago
7 0

Answer:

Step-by-step explanation:

4.7 * 10^{7}

You might be interested in
Does anyone know this? <br> Will mark brainliest !!!!
stich3 [128]

Answer:

x=4

y=4√5

Step-by-step explanation:

Set up 3 right triangles and mark their respective angles. The largest will have sides (in typical a,b,c[hypotenuse] order) y, z, and 10. The middle 8, x, and y. The smallest x,  2, and z.

Then since they are all similar triangles, using the midde and smaller triangles, set up the proportionin which both A sides when divided are equal to the B sides.

So 8/x = x/2

Cross multiply and get 16=x^2.

The  square root of 16 is 4, so x is 4.

Then using the larger and middle triangles, do the same for the A and C sides.

So y/8 = 10/y.

Cross multiply and get 80=y^2.

Find the square root of it, which since it doesn't have a perfect square, you use a calculator or the whatever theorem and get √4*4*5 or simply 4√5.

So x = 4 and y = 4√5

5 0
3 years ago
Answer I need help this question because I don’t know what it is and I need help
Lesechka [4]

Answer:

17

Step-by-step explanation:

QS and RS equal the same

5x - 8 = 3x + 2

-3x  +8    -3x +8

2x = 10

x = 5 you would then plug x into QS

5(5) - 8

25 - 8

17

5 0
3 years ago
You have 100 cm of string which can be cut in one place (or not cut at all) and then formed into a circle and a square (or just
Ne4ueva [31]

Answer:

44cm for minimum area and 0 for maximum area (circle)

Step-by-step explanation:

Let's C be the circumference of the circle and S be the circumference of the square. If we cut the string into 2 pieces the total circumferences would be the string length 100cm.

S + C  = 100 or S = 100 - C

The side of square is S/4 and radius of the circle is \frac{C}{2\pi}

So the area of the square is

A_S = \frac{S^2}{4^2} = \frac{S^2}{16}

A_C = \pi\frac{C^2}{(2\pi)^2} = \frac{C^2}{4\pi}

Therefore the total area is

A = A_S + A_C = \frac{S^2}{16} + \frac{C^2}{4\pi}

We can substitute 100 - C for S

A = \frac{(100 - C)^2}{16} + \frac{C^2}{4\pi}

A = \frac{100^2 - 200C + C^2}{16} + \frac{C^2}{4\pi}

A = 625 -12.5C + \frac{C^2}{16} + \frac{C^2}{4\pi}

A = 625 -12.5C + C^2(\frac{1}{16} + \frac{1}{4\pi})

To find the maximum and minimum of this, we can take the first derivative and set that to 0

A^{'} = -12.5 + 2C(\frac{1}{16} + \frac{1}{4\pi}) = 0

C(\frac{1}{8} + \frac{1}{2\pi}) = 12.5

C \approx 44 cm

If we take the 2nd derivative:

A^{''} = \frac{1}{8} + \frac{1}{2\pi} > 0

We can see that this is positive, so our cut at 44 cm would yield the minimum area.

The maximum area would be where you not cut anything and use the total string length to use for either square or circle

if C = 100 then A_C = \frac{C^2}{4\pi} = \frac{100^2}{4\pi} = 795.77 cm^2

if S = 100 then A_S = \frac{S^2}{16} = \frac{100^2}{16} = 625 cm^2

So to yield maximum area, you should not cut at all and use the whole string to form a circle

4 0
4 years ago
Please help with this for brainliest
Irina-Kira [14]

Answer:

105cm^2

Step-by-step explanation:

5 times 6 = 30

30 div 2 = 15

6 times 15 = 90

90 + 15 = 105

8 0
4 years ago
X+5=5+x is an example of what property?
barxatty [35]

Answer: Commutative Property

Step-by-step explanation: In Picture.

7 0
3 years ago
Other questions:
  • A crater shaped like a cone has a height of 24 yd and a diameter of 72 yd.
    9·1 answer
  • New York City is the most expensive city in the United States for lodging. The mean hotel room rate is $204 per night (USA Today
    14·1 answer
  • What dimension or dimensions do you need to know to find the volume of a sphere?
    14·1 answer
  • One fifth of a number plus three times the number is equal to twice the number plus 42. What is the number
    9·1 answer
  • Find a non zero vector in R4which is orthogonal
    13·1 answer
  • Letters w, x, y, and z are angle measures. Lines r and s are intersected by line m. At the intersection of lines m and r, clockw
    5·2 answers
  • -3=-7+t//////////////////
    9·1 answer
  • HELP PLZZZZZZZZZZZZZZXZXXXZZZZXZZX
    9·2 answers
  • Find the volume of the cone
    9·1 answer
  • Suppose each license plate in a certain state has three digits followed by three letters. The digits and are not used. So, there
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!