Answer:
Depending on what difficulty of division you are doing, if it's simple division such as 120 ÷ 12, you can solve that by remembering your multiplication table. If you want to know how to solve long division, tell me and I'll extend my answer.
Write 7.12 as a mixed number in simplest form.
Work Shown:
7.12 = 7 + 0.12
7.12 = 7 + (12/100)
7.12 = 7 + (3/25)
7.12 = 7 & 3/25
The notation 7 & 3/25 means we have the whole part 7 and fractional part 3/25.
Collect 5 large numbers and 5 small numbers related in life and express them as exponents. Sample- Distance of the Earth from the moon
384400 km = 3.844 × 10⁵ km
Answer:
Exponential notation is a powerful way to express repeated
multiplication of the same number. Specifically, powers of 10
express very large and very small numbers in a manner which is
convenient to read, write and compare.
• For any non-zero integer a, a–m 1
m a
=
• Laws of exponents are
(a) am × an = am+n
(b) am ÷ an = am–n
(c) (am)
n = amn
(d) am × bm = (ab)
m
(e) a° = 1, where a ≠ 0
(f)
m m
m
a a
b b
=
• Numbers can be expressed in expanded form by using exponents.
• Very large and very small numbers can be expressed in standard
form.
• Standard form is also called scientific notation form.
Step-by-step explanation:
Example 1 : Multiplicative inverse of 27 is
(a) 2–7 (b) 72 (c) – 27 (d) – 27
Solution : The Correct answer is (a).
Example 2 : The human body has about 100 billion cells. This number
can be written in exponential form as
(a) 10–11 (b) 1011 (c) 109 (d) 10–9
Solution : The correct answer is (b).
In examples 3 to 5, fill in the blanks to make the statements true.
Example 3 :
4
4 5 (– 4) ______ 4
× =
Solution : 54
Example 4 : ( ) ( ) 2 3 –3 –2 2 3 _____ × =
Solution : 6–6
Example 5 : The distance between earth and sun is 150 million
kilometres which can be written in exponential form as
_______.
Solution : 1.5 × 108 km
In examples 6 and 7, state whether the statements are true (T) or false (F):
Example 6 : Very small numbers can be expressed in standard form
using positive exponents.
Solution : False.
Example 7 : (–10) × (–10) × (–10) × (–10) = 10–4
Solution : False.
Step-by-step explanation:
Error Analysis: Describe and correct the error in solving the equation
Answer:
x = 2
Step-by-step explanation:
1.) Subtract 8 from both sides.
x + 8 = 10
- 8 -8
2.) Simplify 10 - 8 to 2
x + 8 = 10
-8 -8
——————
x = 2
For each ordered pair in the table, how does the second number compare to the first number... can yall tell me I need to turn it in Tomorrow!!??
Answer:
The first number in each ordered pair tells how far across the X line is to move. The second number in each ordered pair tells how far up or down the Y line is to move. The point where the X and Y lines cross is marked “0” on the graph. It is called the “origin,” and is the starting point for plotting points.
The table represents the equation y = 2 - 4x
х
y
Use the drop-down menus to complete the statements
The x-values are the
The y-values are the
The missing value in the table for x = -1 is y = 1
V
-2
10
-1
0
2
1
-2
-6
N
It
Answer:
the x-values are the inputs
the y-values are the outputs
the missing value in the table for x = -1 is y = 6
Step-by-step explanation:
Naomi has earned $54 mowing lawns
the past two days. She worked 2 hours
yesterday and 4 hours today. If Naomi is
paid the same amount for every hour she
works, how much does she earn per hour
to mow lawns?
Answer:
9$ per hour
Step-by-step explanation:
if its 54 dollars in 2 days all you have to do is add the total of hours togther and divided it sk it would be 54 divided by 6 because that is the total of hours in 2 days. which gets you 9 dollars per hour
Simplify completely:
Show all work for full credit.
Answer:
[tex]3 {x}^{3} [/tex]
Step-by-step explanation:
[tex]( \frac{81 {x}^{12} }{3 {x}^{3} } {)}^{ \frac{1}{3} } [/tex]
[tex]( \frac{27 {x}^{12} }{ {x}^{3} } {)}^{ \frac{1}{3} } = (27 {x}^{9} {)}^{ \frac{1}{3} } [/tex]
[tex] \sqrt[3]{27 {x}^{9} } [/tex]
[tex] = 3 {x}^{3} [/tex]
Please help me fast this question
Answer:
64÷16+[12x{16÷(16-10)}]
64÷16+[12x{16÷6}]
64÷16+[12x2.66666666667]
64÷16+32
4+32
36
what is the simplified form of (3x^3 - 4x^2 + 6x) + (-3x + 2x^2 + 5x^3) written in standard form?
Answer:
8x³ - 2x² + 3x
Step-by-step explanation:
Given
(3x³ - 4x² + 6x + (- 3x + 2x² + 5x³) ← remove parenthesis
= 3x³ - 4x² + 6x - 3x + 2x² + 5x³ ← collect like terms
= 8x³ - 2x² + 3x
Add using the number line.
−0.5+(−1.7)
Select the location on the number line to plot the sum.
Answer:
-2.2
Step-by-step explanation:
-5 -4.5 -4 -3.5 -3 -2.5 -2.2 -2 -1.5 -1 -0.5 0
Find the sum of the given arithmetic series. 14 + 28 + 42 + 56 + ... + 280
14 + 28 + 42 + 56 + … 280
= 14 (1 + 2 + 3 + 4 + … + 20)
= 14 × 20 × 21 / 2
= 2940
where we use the well-known identity,
[tex]\displaystyle \sum_{i=1}^ni = 1 + 2 + 3 + \cdots + n = \dfrac{n(n+1)}2[/tex]
D is the midpoint of RJ⎯⎯⎯⎯. R has coordinates (−4,7), and D has coordinates (2,−1). Identify the coordinates of J.
Answer:
[tex](8,-9)[/tex]
Step-by-step explanation:
If the x-coordinate of R is 6 units away from D's x-coordinate, then so will J's x-coordinate. If the y-coordinate of R is 8 units away from D's y-coordinate, then so will J's y-coordinate.
Side note/Extra information:
The line would be [tex]y=\frac{-4}{3} x+\frac{5}{3}[/tex]
How do I solve:
1/6x - 4 =5/6x + 2
Answer:
The answer is x=-9
Step-by-step explanation:
I hope this helps you!
What is the final price including tax for the shoes?
Answer:
Step-by-step explanation:
$15 × 0.75 × 1.04 = $11.70
$25 × 0.75 × 1.04 = $19.50
$37 × 0.75 × 1.04 = $28.86
$65 × 0.75 × 1.04 = $50.70
A scientist uses 3 gallon of liquid for every 6 hours he uses (blank) of a gallon each hour he works
Answer:
2 gallons per hour
Step-by-step explanation:
6 divided by 3
Help if you don’t mind I would appreciate it
Answer:
1/5
Step-by-step explanation:
the answer would be 1/5 because on the chart it showed:
5-2
10-3
15-4
20-5
which changed by 1/5
What integer is equivalent to 25 3/2
The region bounded by chord and arc is called ________.
Select one:
a. Sector
b. Segment
c. Both a and b
d. None of the above
The region bounded by a chord and an arc is known as a segment .
This clock shows the time that Abby starts school this morning.
What time does Abby start school?
Answer:
7:55am
Step-by-step explanation:
The hour hand is not quite at the eight so it would be 7. The minute hand is directly on the 11, from each number is 5 minutes multiplying 11×5 would be 55. therefore it being 7:55am which is morning.
y= -23 +9
y = 42 - 3
PLEASE HELP
Answer:
y = -14
y = 39
Step-by-step explanation:
Step-by-step explanation:
are u sure this is possible
are these simultaneous equations
NEED HELP ASAP!
Carolina and Patricia received their Christmas bonus and decided to use this weekend to buy their Christmas gifts .
Carolina decided to take advantage of the Great Winter Sale in Liverpool that offers discounts of 50% + 20%.
Patricia went to the mall and took advantage of the boutique discount that offers discounts of 70%.
They both bought 3 items with a total listing price of $120. At the end of their purchase rounds, they will have coffee with their friend Cristina and tell her about the offers they found. Based on their experiences, Cristina must decide where she will do her shopping.
Analyze this situation and think,
Where would you recommend Cristina to do her shopping? What is the final price paid on each establishment?
Applying what you have seen in your math classes, what where your calculations and how you can relate it to composition of functions.
Answer:
I would recommend Christina to do her shopping at any of those 2 places because they both have a discount of 70%. The final price paid on each establishment was $36.
120*0.7 = 84
120 - 84 = 36
Step-by-step explanation:
Carolina has a discount of 50%+20% which is the same as a discount of 70%, and Patricia had a discount of also 70%, so they both had the same discounts.
How many milligrams are equal to 39 grams?
A 390 milligrams
B 390,000 milligrams
C 3,900 milligrams
D 39,000 milligrams
Answer:
39000
1 gram=1000milligrams
hence,
39 grams=39×1000milligrams
=39000milligrams
Which is greater 55.5% or 3/5
Answer:
3/5
Step-by-step explanation:
3 divided by 5 is 0.6, which translates to 60%.
55.5% < 60%
Answer:
3/5 is the greater .
I hope it will help you. Have a great day ahead.
Using the Triangle Sum Theorem. Determine the angle measure
of <1.
38
31
(78 and 31 degrees)
Answer:
71 degrees
Step-by-step explanation:
Hi there!
The sum of the interior angles of a triangle is always 180 degrees.
Knowing this, to solve for the measure of angle 1, subtract 78 and 31 degrees from 180:
180-78-31
= 71
Therefore, angle 1 measure 71 degrees.
I hope this helps!
What number can replace c
Answer:
3
Step-by-step explanation:
What do you mean by the value of function?
Answer:
The average value of the function over its domain
How many repeating digits are in the smallest group of repeating digits in the decimal equivalent of the fraction shown?
745/999
If x = 745/999, then
999x = 745
1000x - x = 745
This equation tells us that the fractional part of 1000x and x cancel upon subtracting. This means the block of repeating digits must be 3 digits long.
To verify this, suppose we write x = 0.yyy… , where y consists of 3 digits. Then
1000x = y.yyy…
1000x - x = y.yyy… - 0.yyy…
999x = y
x = y/999
which means y = 745.
Answer:
3 digits
Step-by-step explanation:
PQRS is a rectangle.
The length of PM and QM are shown in the diagram
what is the value of X?
Answer:
diagram pls
then I can answer this question
If a block has a volume of 216 cm³ in length and width of sides respectively 12 cm and 6 cm. What is the height of the cuboid?
Step-by-step explanation:
I hope it helped U
-17 + 20 + -3 = ?
also please try to explain it if u can :3
Answer:
000000000000000
Step-by-step explanation:
no explanation
