Answer:
b
Step-by-step explanation:
The students measured length during a science experiment,they got 12 cm.But the actual measurement was 14.25cm.what was the percent error?
Answer:
Percent error = 15.79%
Step-by-step explanation:
Given the following data;
Experimental value = 12cm
Actual value = 14.25cm
To find the percentage error;
Percent error can be defined as a measure of the extent to which an experimental value differs from the theoretical value.
Mathematically, it is given by this expression;
[tex] Percent \; error = \frac {experimental \;value - actual \; value}{ actual \;value} *100[/tex]
Substituting into the equation, we have;
[tex] Percent \; error = \frac {12 - 14.25}{14.25} *100[/tex]
[tex] Percent \; error = \frac {2.25}{14.25} *100[/tex]
[tex] Percent \; error = 0.1579 *100[/tex]
Percent error = 15.79%
Here is some information about the goals scored in some hockey games.
I need to respond questions B and C
Answer:
c=10
Step-by-step explanation:
12 is 3 more than 7
True or False?
Answer:
false
Step-by-step explanation:
It is 5 more 7+3 is 10 and 5+7 is 12
Answer:
false
Step-by-step explanation:
false coz 12 is 5 more than 7 not 3
A coin will be tossed three times, and each toss will be recorded as heads (H) or tails (7). Give the sample space describing all possible outcomes. Then give all of the outcomes for the event that the second toss is heads. Use the format HTH to mean that the first toss is heads, the second is tails, and the third is heads. If there is more than one element in the set, separate them with commas. Sample space: Event that the second toss is heads: 0 Х ?
Answer:
A). {HHH, HHT, HTH, THH, TTH,THT,HTT,TTT}
(B). {HHH, HHT, THH, THT}
Step-by-step explanation:
Given:
A coin is to be tossed three times and each tossed will be recorded as Head(H) and Tails(T).
To Find:
(a). Sample Space
(b). Event that the second toss is Heads
Explanation:
(A). Sample Space: When a coin is tossed 3 times
{HHH, HHT, HTH, THH, TTH,THT,HTT,TTT}
(B). Event that second toss is Head
{HHH, HHT, THH, THT}
What is true about (0, 5)
Answer:
0/5 equals zero as anything divided by zero gives zero. However 5/0 is an undetermined form which gives infinity.
Step-by-step explanation:
In the fall, you charge people $8 for going to their house to
rake leaves, then $5 for every hour you rake. If you make $38
one day, how many hours did you spend raking?
hours
Answer:
24 hours
Step-by-step explanation:
24 hours is in a day You have to read the answer and comprehend it
Can someone help me? I'd appreciate it
If someone can help me with this question i’ll thank them forever!!
Answer:
[tex]-\frac{3}{2}[/tex] < x or x > 4
Step-by-step explanation:
Convert the inequality to an equation.
2x² - 5x = 12
2x² - 5x - 12 = 0
Factor by grouping.
(2x + 3)(x - 4) = 0
If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.
2x + 3 = 0
x - 4 = 0
Solve for x.
x = -3/2
x = 4
Use each root to create test intervals.
The solution consists of all of the true intervals.
[tex]-\frac{3}{2}[/tex] < x or x > 4
good luck, i hope this helps :)
एक कार की गति 92.4 किमी प्रति घंटा है यह 20 मिनट मे कितना दुरी तय करेगी
Answer:
mate I will surely help if nut pls translate it in English as I can barely read hindi
Holly shipped a 5-pound package for $4. She shipped a 3-pound package for $3.60 and a l-pound l package for $3.20. A 10-pound package cost $5 to ship. The cost follows a pattern based on the
weight. Which expression could be used
to find the shipping cost for a package
of p pounds?
Answer:
the answer would be A
Step-by-step explanation:
The cost seems to start at 3 and increase by each pound times .20 cents. Ex: 1 x .20 =.20 + 3 =3.20
The graph of f(x) = |xl is transformed to g(x) = |x+1|- 7. On which interval is the function decreasing?
O (-infinite,-7)
0 (-infinite,-1)
0 (- infinite,1)
O (-infinite ,7)
Answer:c
Step-by-step explanation:
How does 17- (-15) compare to 17-0
It is due there is 5 minutes please complete this. I will give brainlest, and extra points just complete this please
Need help on this please any one
Which point(s) on the diagram show(s) the solution(s) to the equation x = x2 - 2x - 8?
solution 1
solution 2
Answer:here is the answer on yt
Step-by-step explanation:
https://youtu.be/dQw4w9WgXcQ
What is the end behavior of the graph of the polynomial function y = 10x9 – 4x?
Answer:
The value of the highest degree ( x^9) is 9 - odd.
So this well rise from negative infinity on the left and rise to positive infinity on the right - or, putting it in a different way, fall to the left and rise to the right.
Answer:
Step-by-step explanation:
IWHDHDNDJBFJDNX HELP!!!!!
Answer:
The answer should be B.
Step-by-step explanation:
I got the answer before. Can't remember if I was right. Also A can also be correct.
Rob is making a pizza the radius of the pizza is 21 inches what is the circumference of the pizza using 3.14 rounded to the nearest tenth
Answer:
131.9Step-by-step explanation:
C = 2πr
using 3.14 for π, we get C = 2(3.14)(21)
C = 2(65.94)
C = 131.88 or about 131.9
que es funcion.?????????¿
Answer:
es cuando una cosa esta trabajando como una computadora cuando esta encendida esta funcionando
Factor by grouping 8y3–4y2–14y+7
Answer:
[tex](2y - 1)( {4y}^{2} - 7)[/tex]
Step-by-step explanation:
1) Factor out common terms in the first two terms, then in the last two terms.
[tex] {4y}^{2} (2y - 1) - 7(2y - 1)[/tex]
2) Factor out the common term 2y - 1.
[tex](2y - 1)( {4y}^{2} - 7)[/tex]
Therefor the answer is, ( 2y - 1 ) ( 4y² - 7 ).
Answer:
[tex] \huge \boxed{ \boxed{ \red{ \sf (4 {y}^{ {2} } - 7)(2x - 1)}}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:factoringPEMDASgiven:[tex] \sf 8 {y}^{3} - 4 {y}^{2} - 14y + 7[/tex]to do:factoringtips and formulas:how to factor
factor out common constants and termsgrouplet's do:[tex] step - 1 : define \\ \sf{8y}^{3} - {4y}^{2} - 14y + 7[/tex]
[tex] step - 2 : solve[/tex]
[tex] \sf factor \: - 7 \: and \: 4 {y}^{2} \: from \: the \: expression : \\ \sf 4 {y}^{ {2} } (2y -1 ) - 7(2y - 1)[/tex][tex] \sf \: group : \\ \sf (4 {y}^{ {2} } - 7)(2x - 1)[/tex]If a 60-page magazine cost $1.20 to print, find the cost per page to print?
Answer:
2 cents per page
Step-by-step explanation:
1.2/60 = 0.02 dollars
==> 2 cents
A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River. Use the formula t=h‾√4 to find how many seconds it takes for the hammer to reach the river. Round your answer to the nearest tenth of a second.
Answer:
The hammer reaches the river after 15.8 seconds.
Step-by-step explanation:
The formula to find for how long it takes for the hammer to reach the ground is given by:
[tex]t = \frac{\sqrt{h}}{4}[/tex]
In which h is the initial height.
A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River.
This means that [tex]h = 4000[/tex].
So
[tex]t = \frac{\sqrt{4000}}{4}[/tex]
[tex]t^2 = \frac{4000}{16}[/tex]
[tex]t^2 = 250[/tex]
[tex]t = \sqrt{250}[/tex]
[tex]t = 15.8[/tex]
The hammer reaches the river after 15.8 seconds.
13/16 - 1/4.¿ using 5th grade work
Answer:
[tex]\frac{9}{16}[/tex]
Step-by-step explanation:
Answer:
9/16
Step-by-step explanation:
1/4x4=4/16 13/16-4/16=9/16
y + 1 = -4(x + 1)
Graph the equation
Answer:
-4x-5
Step-by-step explanation:
sorry I can't get the graph
Answer:
Step-by-step explanation:
y = -4x-5
a discount of 15% is given on all t-shirt how much less is paid on such a T-shirt which ordinary cost $85
Answer:
$72.25
Step-by-step explanation:
85 x 15/100
85 x 0.15= 12.75
85- 12.75=
72.25
find the equation of a straight line passing through the point (1,2) and making an intercept of 3 on the positive y-axis.
-4x-2y=-10
3x+y=4
Using substitution
Let get x from the first equation
-4x=+2y-10
x=-1/2y + 5/2
Now substitute the x in the second equation
3(-1/2y+5/2)+y=4
-3/2y + 15/2 + y =4
Move the terms without the y to the other side
-3/2y + y = -15/2 +4
Now multiple both side by 2
-3y +2y = -15+8
-y = -7
Y = 7 (ANSWER)
Now we substitute the y in the first equation so we can get the x
x = -1/2 (7) + 5/2
x = -7/2 + 5/2
x = -2/2
X = -1 (SECOND ANSWER)
The line plot shows the amount of water collected after seven days of an experiment. Tina decides to evenly divide the water into 3 glas
Amount of Water
X
X
X X
+ +
1 1 3
0
2 4
Measurement (in cups)
1
How much water should go into each glass?
cup
O
1 cup
2 cups
3 cups
Answer: my brother did it and it's 1 cup
Step-by-step explanation:
Answer:
1 cup
Step-by-step explanation:
ive done this test in class if you need further explionation let me know
Find a solution to the linear equation 13x+y=26
Answer:
y = -13x+26
Step-by-step explanation:
13x+y=26
y= -13x+26
Solve
2
X = 6.
x =
Help would be greatly appreciated
Answer:
x=3
Step-by-step explanation:
A company charges $60 per day plus $0.50
per mile for truck rentals. If Greg rents a
truck for 3 days and drives it a total of 150
miles, what will the company charge?
Answer:
$225
Step-by-step explanation:
$60 ×3=$180
150 ×$0.50 = $75
$180+ $75= $225
the company will charge $225
