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konstantin123 [22]
3 years ago
14

Write the number 0.0000002 in scientific notation​

Mathematics
1 answer:
Hoochie [10]3 years ago
8 0

Answer:

2 x 10^-7

Step-by-step explanation:

Move the decimal point 'til it becomes a number that is less than 10 and more than 1 then count it.

Also if the point is before the number, it is negative.

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Suppose PR = 54, solve for QR<br> 4x-1<br> 3x-1<br> P<br> R
Svet_ta [14]

Answer:

QR = 23

Step-by-step explanation:

P, A, and R are collinear.

PR = 54

PQ = 4x - 1

QR = 3x - 1

To solve for the numerical length of PR, let's generate an equation to find the value of x.

According to the segment addition postulate:

PQ + QR = PR

(4x - 1) + (3x - 1) = 54 (substitution)

Solve for x

4x - 1 + 3x - 1 = 54

Combine like terms

4x + 3x - 1 - 1 = 54

7x - 2 = 54

Add 2 to both sides

7x - 2 + 2 = 54 + 2

7x = 56

Divide both sides by 7

\frac{7x}{7} = \frac{56}{7}

x = 8

QR = 3x - 1

Plug in the value of x into the equation

QR = 3(8) - 1 = 24 - 1

QR = 23

5 0
3 years ago
A bicycle wheel has a radius of 13 inches.
Dovator [93]
The distance traveled in  1 roation is assumed to be the circumferece

c=2pir
in 13 rotations

13 times 2pir=26pir=distance traveled for 13 revolutions

r=13
d=26pi13
d=338pi
using 3.14 for pi
d=1061.32 inches
6 0
3 years ago
3x + y = -21<br> x+y=-5<br> solving systems of equations by substitution
katen-ka-za [31]
First : x=-5-y and then put x in the phrase above
7 0
3 years ago
5 (x + 2) = 3 (x + 8)
aleksley [76]
So first you distribute the 5 to the x and the +2 and get
5x+10=3(x+8)
 then you distribute the 3 to the other x and the +8 and get
5x+10=3x+24
subtract 3x from both sides
2x+10=24
subtract 10 from both sides and get
2x=14
divide both sides by 2 and get
x=7
8 0
3 years ago
Read 2 more answers
Use the graph to determine the input value for
musickatia [10]

Answer: x=1.5

Step-by-step explanation:

8 0
3 years ago
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