The decimal number that is multiplied by 10 must be less than a two-digit number.
We move the decimal point to the left for this problem and stop where the decimal is less than a two-digit number.
So, 956.3 becomes 9.56 after moving two places to the left. Moving to the left makes the exponent of 10 positive. Moving to the right, makes the exponent of 10 negative.
We want our answer in the form
(decimal number) x 10^(n).
Answer: 9.56 x 10^2
Understand???
Lila has $35.55. She buys a magazine for $3.15, a cookie for $2.20, and a shirt for $14.99. She also gets $5 from a friend. How much money does she have after the above transactions?
A)$10.21
B)$14.61
C)$16.51
D)$20.21
Answer:
$20.21
Step-by-step explanation:
$35.55 - $3.15 = $32.40
$32.40 - $2.20 = $30.20
30.20 - $14.99 = $15.21
$15.21 + $5.00 = $20.21
The answer is D
$35.55 - $3.15 = $32.4 $32.4 - $30.2 $30.2 - $14.99 = $15.21 $15.21 + $5 = $20.21
HELP!!! Parallel Line Proofs
Each line represents a proportional relationship.Write an equation for each line. Show your work.
Answer:
do u think u can zoom in more on the graph
Step-by-step explanation:
Answer:
can you zoom more in the graph?
Step-by-step explanation:
Alex has locked himself out of his house! Thankfully, there is an upstairs window open, but he needs to use a ladder to try to get up to the window that is 10 feet high. If Alex leans a 10-foot ladder against the side of the house so that the bottom of the ladder rests 6 feet from the base of the building, how high up the house does the ladder reach? Round your answer to the nearest tenth.
Answer:
The answer to this would be yes
Step-by-step explanation:
Why you may ask? Because why not :D
Explanation:
It might help to draw out what's going on. You should draw out a right triangle. We know a = 6 is one of the legs while b is the unknown leg. The hypotenuse is c = 10. Use the pythagorean theorem.
a^2 + b^2 = c^2
6^2 + b^2 = 10^2
36 + b^2 = 100
b^2 = 100-36
b^2 = 64
b = sqrt(64)
b = 8
The top of the ladder can reach 8 feet off the ground.
A quality control group found 7 defects for every 1250 units produced. If 8750 products were produced how many defects were there?
if Ad = 2x + 2 and cd= x +11, what is the value of x
Answer: the answer is 9
Step-by-step explanation:
Please help I have been stuck for 2 HOURS!
TY
In what step did Martin make a mistake, if any? Step 1: Martin should have written his ratio as StartFraction 1200 Over question mark EndFraction. Step 2: Martin should have divided 1200 by 8. Step 3: Martin should have added 1200 and 150. Martin did not make any mistakes.
Answer:
Martin Did not make any mistakes
Answer:d
Step-by-step explanation:
Martin did not make any mistakes. Have a nice day. ;)
At what point do the graphs of x = 5 and y = -3 intersect
What is Y
0.7+y=−1.34
y=
Answer:
y = -2.04
Step-by-step explanation:
0.7 + y = -1.34
~Subtract 0.7 to both sides
y = -2.04
Best of Luck!
Determine the slope and the y-intercept of the table.
Answer:
Slope: 1.5
Y-Intercept: -1
The scores of seven people playing a card game are listed below.
Answer:
there is nothing but a black screen
Step-by-step explanation:
Answer:Even though theres no screen the answers IQR is 73
Please check #9 and tell me if I’m right
Q: Find (x) so the (L) is parallel to (m) and state the converse used
Answer:
that's 53 °not 90 i thought
A group of students were in a disagreement about how to solve for x in the figure. Which
method could be used to solve? *
Use tan (30)
Use the Pythagorean Theorem
Use sin (30)
Use cos (30)
Answer:
use cos (30) because x is adjecent and 12 is the hypotenuse
Step-by-step explanation:
If 180 is decreased by 75%, what is the result?
Answer: 45
Step-by-step explanation:
help lol i forgot the picture
Answer:
x=12
Step-by-step explanation:
4(12)+17 equals 65
(12)+23 equals 35
180-80=100
65+35=100
A circle is centered at the point (5,-4) and passes
Answer:
it is c
Step-by-step explanation:
You have to line up the graph and see then your gonna wanna solve it from there hope this helps
A cookie recipe for 60 cookies calls for 4 cups of flour. how much flour is needed to make 90 cookies that elevated, flat-topped landforms are shown in the above picture?
Answer:
6
Step-by-step explanation:
60/4=15
1 cup of flour=15 cookies
2 cups of flour= 30 cookies
3 cups of flour= 45 cookies
4 cups of flour= 60 cookies
5 cups of flour= 75 cookies
6 cups of flour= 90 cookies
If a car is traveling at 120 km/s within 120 min, what is its distance? (Remember: 60 seconds = 1 min. 120 km = 120,000 m) *
Answer:
[tex]d=864\times 10^6\ m[/tex]
Step-by-step explanation:
Given that,
Speed of a car, v = 120 km/s
It takes 120 minutes
v = 120000 m/s
t = 7200 s
We need to find the distance covered. Speed is given by :
v = distance/time
[tex]d=v\times t\\\\d=120000\ m/s\times 7200\ s\\\\d=864\times 10^6\ m[/tex]
So, the distance covered is [tex]864\times 10^6\ m[/tex].
Whoever answers gets brainlist!
Answer:
i belive its 19/33
Step-by-step explanation:
I’ll give Brainly! :) Which equation has the greatest value when solved?
A) 53 − 6 × 2 =
B) 33 + 3 × 2 =
C) 10 × 2 + 18 =
D) 20 × 4 ÷ 2 =
Answer:
I'm pretty sure it's a
Step-by-step explanation:
A:41
B:27
C:38
D:40
Answer:
A) 53 − 6 × 2 = 41
Step-by-step explanation:
A. 53 − 6 × 2 = 41
B. 33 + 3 × 2 = 39
C. 10 × 2 + 18 = 38
D. 20 × 4 ÷ 2 = 40
Translate the following equation into a verbal sentence: x + 3 = 2(6 + x)
Answer:
"x" plus three equals to two times six plus "x"
i need help with these 9 questions they’re pretty simple
Answer:
1. n = 4
2. n = -29
3. n = -28
4. n = -48
5. n = -22
6. n = 97
7. n = 220
8. n = -18
9. n = 36
Step-by-step explanation:
1. -n = -4
Multiply both by -1 to get n = 4
2. 12 + n = -17
Subtract 12 from both sides of the equation to get n = -29
3. -n/14 = 2
Multiply by 14 on both sides of the equation to get -n = 28
Multiply -1 on both sides of the equation to get n = -28
4. -42 = n + 6
Subtract 6 from both sides of the equation to get -48 = n or n = -48
5. -4n = 88
Divide -4 on both sides of the equation to get n = -22
6. n + -3 = 94
Add 3 to both sides of the equation to get n = 97
7. 11 = -n/-20
Multiply by -20 on both sides of the equation to get -220 = -n or -n = -220
Multiply -1 on both sides of the equation to get n = 220
8. -108 = 6n
Divide by 6 on both sides of the equation to get -18 = n or n = -28
9. 67 = 31 + n
Subtract 31 from both sides of the equation to get 36 = n or n = 36
I Hope That This Helps! :)
Please help me I am confused
10. The table below shows the sales for a flower company for the years 2007 through 2012. Answer the given questions about
this table on your answer sheet.
14 -
A) Graph the data on the scatter plot and draw a line of best fit for the data.
FLOWER SALES
$420
Sales
$395
Year
(in
thousands)
Sales in
$370
2007 $305
thousands)
2008
$345
$330
2009
$345
$330
2010
$370
$305
2007 2008 2009 2010 2011 2012
2011
$395
2012
$420
year
B) Write an equation for the line of best fit for this data.
Let x represent the years since 2007 and y represent the
sales, in thousands of dollars.
C) According to your equation, in what year will the
sales reach about $500 (in thousands)? Use
mathematics to explain how you determined your
answer
how many real solutions will y=x^2 and y=-2x have? what are the solutions?
Answer:
there is none
Step-by-step explanation:
Answer:
No solutions
Step-by-step explanation:
Real number solutions only or real and complex solutions. A solution to the system:
y=-2x+2
y=x2-2x+4
is the value of x such that when you plug it into both equations, they both produce the same value of y, or the value of x such that
-2x+2=x2-2x+4
solving this equation----------> x2=-2, taking square root of both sides gives x= ±√2i, or the system has no real solutions but has 2 complex solutions. If you graph both functions in the xy-plane, where x, y are real numbers, you' ll see they do not intersect, which implies there is no real number solutions.
In the 2017 national Youth Risk Behavior Survey, 16.5% of high school students had ridden with a driver who had been drinking alcohol within the previous month. This data came from an SRS of 14,500 students. what is the mean and standard deviation
Answer:
[tex]Mean = 2392.5[/tex]
[tex]SD = 44.70[/tex]
Step-by-step explanation:
Given
[tex]Students = 14500[/tex]
[tex]p = 16.5\%[/tex]
Solving (a): The mean
Mean is calculated as thus:
[tex]Mean = np[/tex]
[tex]Mean = 16.5\% * 14500[/tex]
Convert % to decimal
[tex]Mean = 0.165 * 14500[/tex]
[tex]Mean = 2392.5[/tex]
Solving (b): The Standard Deviation
Standard deviation (SD) is calculated as thus:
[tex]SD = \sqrt{np(1-p)}[/tex]
[tex]SD = \sqrt{14500 * 16.5\%(1-16.5\%)}[/tex]
Convert % to decimal
[tex]SD = \sqrt{14500 * 0.165 * (1-0.165)}[/tex]
[tex]SD = \sqrt{14500 * 0.165 * 0.835}[/tex]
[tex]SD = \sqrt{1997.7375}[/tex]
[tex]SD = 44.6960568731[/tex]
[tex]SD = 44.70[/tex]
(a +3)/7 = 3
..........
Answer:
1/7
Decimal Form:
0.1428574
Step-by-step explanation:
Evaluate the expression on top helllp pls
Answer:
159
Step-by-step explanation:
Answer:
the answer is 59
Step-by-step explanation:
apply
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
First, add inside the parentheses. Your equation is now 8^2-5.
8 squared is sixty four, and subtract five to get 59. Hope this helped!
V'W'X'Y' has vertices V^' (-3,2),W^' (5,1),X^' (0,4),and Y'(-2,0). If V'W'X'Y' is the image of VWXY rotated 90° around the origin. What are the coordinates of VWXY (the pre-image).
Given:
V'W'X'Y' has vertices V'(-3,2), W'(5,1), X'(0,4) and Y'(-2,0).
V'W'X'Y' is the image of VWXY rotated 90° around the origin.
To find:
The coordinates of VWXY (the pre-image).
Solution:
V'W'X'Y' is the image of VWXY rotated 90° around the origin. It means, the figure VWXY is rotated 90° counterclockwise around the origin.
So, if we rotate V'W'X'Y' 90° clockwise around the origin, then we get the original figure VWXY.
If a figure rotated 90° clockwise around the origin, then
[tex](x,y)\to (y,-x)[/tex]
[tex]V'(-3,2)\to V(2,3)[/tex]
[tex]W'(5,1)\to W(1,-5)[/tex]
[tex]X'(0,4)\to X(4,0)[/tex]
[tex]Y'(-2,0)\to Y(0,2)[/tex]
Therefore, the coordinates of preimage are V(2,3), W(1,-5), X(4,0) and Y(0,2).
