Answer:
88
Step-by-step explanation:
Use BODMASbrackets of division , multiplication , addition and subtraction
2+2+4+6*6*2+3+5
start with the multiplication
6*6*2 = 72
now do the addition
2+2+4+72+3+5 =88
Layla measured a line to be 6.8 inches long. If the actual length of the line is 6.5 inches, then what was the percent error of the measurement, to the nearest tenth of a percent?
Given parameters:
Measured length = 6.8inches
Actual length = 6.5 inches
Unknown parameter is the percentage error
Errors introduce uncertainty into a reading. Often times measurement errors are incurred in a process due to diverse reasons. This error can be due to the problems with the measuring device, incorrect reporting of measured values and also, the scientist can be at fault.
Deviation from the actual measurement leads to the concept of accuracy.
To solve this problem, we need to find the absolute error;
Absolute error = | Measured length - Actual length|
Input the variables given and solve;
Absolute error = | 6.8 - 6.5| = 0.3 inches
Now, let us find the percentage error;
Percentage error = [tex]\frac{Absolute error}{Actual length} x 100[/tex]
Input the parameters and solve;
Percentage error = [tex]\frac{0.3}{6.5} x 100[/tex] = 4.615%
To the nearest tenth percent = 4.6%
Therefore, the percentage error to the nearest tenth percent = 4.6%
Jacob attempted the third problem above but when checking his work realized he made a mistake. Identify what Jacob’s mistake was in your own words, and explain what Jacob would need to do differently to avoid making that mistake in the future:
Answer:
When solving, Jacob did not distribute properly.
Explanation:
Let's talk about 5(x + 2). The correct distribution would be 5x + 10. Jacob distributed 5 into x correctly and got 5x, however he did not distribute the 5 into 2 properly. It should have been 10, however it stayed as 2.
Jacob should be more careful when distributing, and make sure to distribute into EVERY term inside the parentheses.
When multiplying two negative integers, what is the sign of the product? positive negative zero one
Answer:
Positive
Step-by-step explanation:
2 Negative's make a Positive
Answer:
Positive
Step-by-step explanation:
when adding two negative integers it makes a positive
Snow is accumulating on mrs. Garcias driveway at a rate of 3/4 of an inch per hour. If there were already 3 inches of snow on her driveway when she woke up at 6:00 in the morning, how many inches of snow were on the driveway when she started shoveling 90 minutes later?
Answer:
4.125 inches.
Step-by-step explanation:
Based on the information provided we see that she took 90 minutes before shovelling which is 1 hour and 30 minutes or 1 1/2 hours (1.5 hours). Since we also know that the snow has been accumulating at a rate of 3/4 (0.75) inch per hour then we simply multiply these two values together to find out how much snow has accumulated.
0.75 * 1.5 = 1.125 inches
Now we can add this amount to the initial amount at 6:00 in the morning to find how many inches of snow were on the driveway when she started shovelling
3 + 1.125 = 4.125 inches.
On her way to her grandmother's house, Jackie traveled three times as many miles by train as by bus. She traveled four times as many miles by bus as by foot. If Jackie traveled 34 miles in all, how many miles did she travel by train?
Answer:
15
Step-by-step explanation:
Answer:15
Step-by-step explanation:
1 point
The rectangular prism shown below has a length of
3.0 cm, a width of 2.2 cm, and a height of 7.5 cm.
7.5 cm
1
1
3.0 cm
2.2 cm
What is the area of the bottom face made by the length and width, in square centimeters?
Answer:
3.0cm*2.2cm = 6.6cm^2
Step-by-step explanation:
Answer:
6.6 cm^2
Step-by-step
Area equals length times width. In this case 3x2.2=6.6 cm^2.
i need help on this
Answer:
x = 3
Step-by-step explanation:
For this problem, it's important to understand what an angle bisector is. An angle bisector is simply a line that splits an angle into two equal portions. In this problem, <ATS is bisected by TR which gives us <ATR = <RTS = 1/2 <ATS.
Let's use this information to solve our equation to find x.
m<RTS = 1/2 m<ATS
17x - 5 = (1/2) (28x + 8)
17x - 5 = (1/2)(28x) + (1/2)(8)
17x - 5 = 14x + 4
17x - 14x - 5 = 14x - 14x + 4
3x - 5 = 4
3x - 5 + 5 = 4 + 5
3x = 9
3x * 1/3 = 9 * 1/3
x = 3
Hence, we have found the value of x to be 3.
Cheers.
Wages $6.54 1. Cook, fast food 21. P
Answer:
I dont get it. :(
Line RS intersects triangle BCD at two points and is parallel to segment DC. Triangle B C D is cut by line R S. Line R S goes through sides D B and C B. Lines D C and R S are parallel. width= Which statements are correct? Select three options. △BCD is similar to △BSR. StartFraction B R Over R D EndFraction = StartFraction B S Over S C EndFraction If the ratio of BR to BD is Two-thirds, then it is possible that BS = 6 and BC = 3. (BR)(SC) = (RD)(BS) StartFraction B R Over R S EndFraction = StartFraction B S Over S C EndFraction
Answer:
The correct options are;
1) ΔBCD is similar to ΔBSR
2) BR/RD = BS/SC
3) (BR)(SC) = (RD)(BS)
Step-by-step explanation:
1) Given that RS is parallel to DC, we have;
∠BDC = ∠BRS (Angles on the same side of transversal)
Similarly;
∠BCD = ∠BSR (Angles on the same side of transversal)
∠CBD = ∠CBD = (Reflexive property)
Therefore;
ΔBCD ~ ΔBSR Angle, Angle Angle (AAA) rule of congruency
2) Whereby ΔBCD ~ ΔBSR, we therefore have;
BC/BS = BD/BR → (BS + SC)/BS = (BR + RD)/BR = 1 + SC/BS = RD/BR + 1
1 + SC/BS = 1 + RD/BR = SC/BS = 1 + BR/RD - 1
SC/BS = RD/BR
Inverting both sides
BR/RD = BS/SC
3) From BR/RD = BS/SC the above we have by cross multiplication;
BR/RD = BS/SC gives;
BR × SC = RD × BR → (BR)(SC) = (RD)(BR).
This question is related to properties of similar figures. Therefore, the three statements that are correct are:
ΔBCD is similar to ΔBSR [tex]\frac{BR}{RD}[/tex] = [tex]\frac{BS}{SC}[/tex] (BR)(SC) = (RD)(BS)Two or more figures or shapes are said to be similar if they have all properties in common. This implies angles, orientation and parallel/ perpendicular sides etc.
Comparing the properties of the sketch for the question, the required statements that are correct are:
a. ΔBCD is similar to ΔBSR
b. [tex]\frac{BR}{RD}[/tex] = [tex]\frac{BS}{SC}[/tex]
c. (BR)(SC) = (RD)(BS)
The sketch for the question is attached for better comparison.
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Round 19,805 to the indicated place.
19,805 rounded to the nearest ten is
19,805 rounded to the nearest hundred is
19,805 rounded to the nearest thousand is
19,805 rounded to the nearest ten is 19,810
19,805 rounded to the nearest hundred is 19,800
19,805 rounded to the nearest thousand is 20,000
I apologize, this very late, but for future viewers this will help you.
- 1 = 2m - n; solve for n
Answer:
n = 2m + 1
Step-by-step explanation:
[tex]-1=2m-n\\\\-1+n=2m-n+n\\\\-1+n=2m\\\\-1+1=n=2m+1\\\\\boxed{n=2m+1}[/tex]
Hope this helps.
Last year you bought a pair of boots for $84 last year. Your friend bought the same pair of boots this year for $120. What is the percent of change in the cost of the boots.
Answer:
30%
Step-by-step explanation:
70% of 120 is 84. So take the remainder of 70 (30, as %'s go up to 100.) and that's the percent left. We can "fact check this" the other way around as well.
30% of 120 = 36.
84 + 36 = 120.
The price of the boots have changed/raised 30%.
Hope this helps and have a nice day!
2. Write the following expanded form: 3.26x10^(-2). *
Answer:
o.o326
Step-by-step explanation:
when dealing with negative exponents you move the decimal to the left
Rachel and her friends are making necklaces out of beads and straws. They plan to use 12 beads and 5 straws for each necklace. They have a jar of beads that contains a total of 2,700 beads. How many necklaces can they make? Write an equation to solve the problem. ÷ =
Answer:
225 necklaces.
Step-by-step explanation:
Assuming that they have the necessary amount of straws to match the beads then we can use the following simple equation to solve this problem.
t = b/12 ... where t is the total amount of necklaces and b is the number of beads you have
t = 2700 / 12
225 necklaces.
For 225 necklaces you would also need 1125 straws since each necklace requires 5 straws to be fully made. Therefore if you have this amount you should not run into any problems.
Standard Form
Helllpppp Plzzz
Answer:
2.4*10^6
Step-by-step explanation:
R = x^2 / y
R = [tex]\frac{(3.8 * 10^5)^2}{(5.9*10^4)}[/tex]
R = [tex]\frac{1.444*10^{11} }{5.9*10^{4} }[/tex]
R= 2447457.627
to find out what to round of to , you look at the value of x and y
both x and y are rounded of to 2 significant figures. hence for R you should use the same
R = 2447457.627
R = 2.447457627 * 10^6
to 2 sf
R = 2.4 *10^6
Consider the equation below. -2(5x + 8) = 14 + 6x
Answer:
-1.875
Step-by-step explanation:
1. Write the problem: -2(5x + 8) = 14 + 6x
2. Multiply -2 by 5 and 8 to get: -10x - 16 = 14 + 6x
3. Combine like terms: -16x - 16 = 14
4. Repeat step 3: -16x = 30
5. Divide -16 by 30 to get the answer which is -1.875.
Hope this helped!
Two angles form a linear pair if and only if they are _______and their non-common sides are________.
Answer:
adjacent and opposite rays.
Step-by-step explanation:
Mr. Andrews is trying to lose weight. He starts the year weighing 254 pounds. If he plans to burn enough calories to lose 4 pounds per week, then how many weeks will pass before Mr. Andrews weighs 228 pounds?
Answer:
9 weeks before he weights 228
1. how is 5 x 10^3 written in standard form?
2. how is 6.89 x 10^7 written in standard form?
3. how is 9.010 x 10^6 written in standard form?
Answer:
5000 x68900000 x9010000 xStep-by-step explanation:
hope this helps
need an answer asap!!!!
a = 12, b = 5, and c = 4.
3c + bc - 2a
Answer:
8
Step-by-step explanation:
3(4)+(5)(4)-2(12)
then solve
12+20-24=8
Answer of the given expression 3c + bc -2a is equals to 8.
What are variables?" Variables is that quantity which gets vary or change as per the situation assigned to it."
According to the question,
Given,
a = 12 , b = 5 , and c=4
Substitute the values of the given variable in the equation we get,
3c +bc - 2a
=3(4) + (5)(4) -2(12)
= 12 +20 -24
=32-24
=8
Hence, value of 3c + bc -2a is equals to 8
Learn more about variable here
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_______ % of 40 = 1% of 400 please do the calculation and explanation if you do this question I will mark you as brainliest
Answer:
Step-by-step explanation:
its 10
Answer:
10%
Step-by-step explanation:
Let x be the percentage
[tex]\frac{x}{100} *40= \frac{1}{100} *400\\\frac{x}{10} * 4=4\\ x=10*\frac{4}{4} \\x=10[/tex]
Suppose that S and T are on points on the number line.
If ST=20 and S lies at 3, where could T be located?
Answer: T= 6.66
Step-by-step explanation:
ST = 20 and S=3
(3)T = 20
T= 20 \ 3
T= 6.66
A local drugstore sells tissues at 10 boxes for $7.50. A super discount
warehouse sells the same tissues at 30 boxes for $22.00. Which store has a
better offer?
Answer:
The local drugstore
Step-by-step explanation:
The local drugstore sells 10 boxes for 7.50. You would do 10/7.50 = 1.34
The local drugstore sells every box for 1.34
The warehouse sells 30 boxes for 22.00. 30/22 = 1.36. Each box at the warehouse cost 1.36
The local drugstore is cheaper and a better sale. The drugstore is 0.02 cheaper.
Solve from question 1 to 10 ( I NEED THIS ASAP! TY )
Answers:
1. 65 + x = 90
x =25
2. 51 + x = 180
x =129
3. 107 + x = 180
x = 73
y = 107
z = 73
4. angle + 13 = 180 (supplementary means 180)
angle = 167
5. angle + 38 = 180 (supplementary means 90)
angle = 52
6. (5x + 9) + (3x +11) = 180
8x + 20 = 180
8x = 160
x = 20
angle 1 = 109 angle 2 = 71
7. 17x + 1 = 20x - 14
1 = 3x - 14
15 = 3x
5 = x
angle 1 = 86 angle 2 = 86
8. (3x + 3) + (10x - 4) = 90
13x -1 = 90
13x = 91
x = 7
angle 1 = 24 angle 2 = 66
9. p = 2q - 3; q + p = 180
p = 2(180 - p) - 3
p = 360 - 2p - 3
3p = 357
p = 119
______________
q + (119) = 90
q = 61
10. b = 3c + 2; b + c = 90
b = 3(90 - b) + 2
b = 270 - 3b + 2
4b = 272
p = 68
______________
c + (68) = 90
q = 22
gcmf and factored form of ײ + 2×
Answer:
The greatest common factor (GCF) is x
x(x+2)
Step-by-step explanation:
6.09 to the nearest tenth.
Answer:
6.1
Step-by-step explanation:
So when rounding off to the earest tenth check if the hundredeth number is bigger than 5 in this case the 9 is bigger than 5.
Because it is bigger than 5 add a 1 to the tenth unit making it 1.
Leave the 6 as it is.
The answer then becomes 6.1
HOPE THIS HELPED
The midpoint of AB is M(-1, -2). If the coordinates of A are (1,3), what are the
coordinates of B?
Answer:
In the pic
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)
The coordinates of point B of the line segment are (-3, -7).
What is the midpoint of a line segment?A midpoint of a line segment is the point on a segment that bisects the segment into two congruent segments.
The formula to find the midpoint of line segment is (x, y) = [(x₁+x₂)/2, (y₁+y₂)/2]
Given that, the midpoint of AB is M (-1, -2).
The coordinates of A are (1,3).
Let the coordinates of point B are (x, y)
Here, (-1, -2) = [(1+x)/2, (3+y)/2)
-1=(1+x)/2 and -2=(3+y)/2
-2=1+x and -4=3+y
-3=x and -7=y
The coordinates of point B are (-3, -7)
Therefore, the coordinates of point B of the line segment are (-3, -7).
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Here is the velocity-time graph of a car for 40 seconds. Work out the average acceleration during the 40 seconds
i think it will be 140 soconds
Answer:
a) 0.75m/s^2
b)10
Step-by-step explanation:
Consider the function f ( ) round( ) x x , which rounds the input, x, to the nearest integer. Is this function
one-to-one? Explain or justify your answer.
please help
Answer:
The function is not one-to-one
Step-by-step explanation:
Required
Determine if [tex]f(x) = round(x)[/tex] is one-to-one
To answer this question, we need to make use of illustrating values of x.
Take x = 6.7
This implies that:
[tex]f(6.7) = round(6.7)[/tex]
[tex]f(6.7) = 7[/tex]
Also, Take x = 6.8
[tex]f(6.8) = round(6.8)[/tex]
[tex]f(6.8) = 7[/tex]
Notice that the above values of x give the same resulting value of f(x).
If you also take x = 7.4
[tex]f(7.4) = round(7.4)[/tex]
[tex]f(7.4) = 7[/tex]
This also gives the same value as the (2) illustration previously used
With these illustrations, we've seen that f(x) has the tendency to have more than one values for different values of x.
Hence:
The function is not one-to-one
Which answer shows 9x 10-5 written in standard form?
-0.000009
-0.00009
0.0009
0.00009
Answer:
0.0009
Step-by-step explanation:
Answer:
0.00009
Step-by-step explanation:
Brainliest Please
