PLEASE HURRY 100 POINTS!
Marques made a mistake when solving this problem. On what line did he make the error?
A) Line 1
B) Line 2
C) Line 3
D) Line 4
E) Line 5
Answers
Answer:
B) Line 2
using the formula:
[tex]\sf c^2 = a^2 + b^2 -2abcos(C)[/tex]
[tex]\sf c^2 = 14^2 + 8^2 -2(14)(8)cos(80)[/tex]
[tex]\sf c^2 = 196 + 64 -244 *0.173[/tex]
[tex]\sf c^2 = 221.1[/tex]
[tex]\sf \sqrt{c} = \sqrt{221.1}[/tex]
[tex]\sf c = 14.87[/tex]
Use law of cosines
c²=a²+b²-2abcosCc²=14²+8²-2(14)(8)cos80c²=196+64-244(0.173)c²=221.1c=14.87Error at line 2
Related Questions
Hey, what's 25.21-12.47?
Answers
First, you have to line up the decimal places (it isn't multiplication or division).
25.21
- 12.47
_______
12.74
25.21-12.47 = 12.74
Answer:
12.47
Step-by-step explanation:
PLEASE HELP ME WITH THIS QUESTION
The graph below shows the distances, in miles, that a dragonfly can travel in a certain number of hours:
A graph titled Motion of a Dragonfly shows Time in hours on the x axis and Distance in miles on the y axis. The scale on the x axis shows number from 0 to 10 at increments of 2, and on the y axis, the numbers are shown from 0 to 330 at increments of 66. A straight line joins the ordered pairs 0, 0 and 2, 66 and 4, 132 and 6, 198
Based on the graph, what is the dependent variable, what is the equation relating the two variables, and how far will the dragonfly travel in 24 hours if it continues to fly at the same speed?
The dependent variable is distance, the equation is y = 33x, and the dragonfly will travel 792 miles.
The dependent variable is distance, the equation is x = 33y, and the dragonfly will travel 1,056 miles.
The dependent variable is time, the equation is y = 33x, and the dragonfly will travel 792 miles.
The dependent variable is time, the equation is x = 33y, and the dragonfly will travel 1,056 miles.
Answers
Answer:
The dependent variable is distance, the equation is y = 33x, and the dragonfly will travel 792 miles
Step-by-step explanation:
ordered pairs: (0, 0) (2, 66) (4, 132) (6, 198)
slope of linear equation = change in y ÷ change in x
⇒ slope = (132 - 66) ÷ (4 - 2) = 33
Therefore, equation of the line: y = 33x
When x = 24, y = 33 × 24 = 792 miles
Distance is dependent on time, therefore distance is the dependent variable and time is the independent variable.
slove for X= what would this be for Mai poured 2.6 liters of water into a partially filled pitcher. The pitcher then contained 10.4 liters.
Which equation best represents the situation?
2.6\cdot⋅10.4 = x
, Not Selected
2.6 + 10.4 = x
, Not Selected
x + 2.6 = 10.4
, Not Selected
Incorrect answer:
x - 10.4 = 2.6
Results for item 16.
16
0 / 1 point
Solve for x in the equation you chose.
x =
Incorrect answer:
8.3
Answers
Answer:
x + 2.6 = 10.4
x = 7.8
Step-by-step explanation:
If 2.6 liters are added to x liters with the result that 10.4 liters then exist, the model is ...
2.6 +x = 10.4 . . . . . . . 2.6 added to x gives 10.4
The commutative property of addition lets you rewrite this to ...
x +2.6 = 10.4
__
Subtracting 2.6 from both sides of the equation gives its solution:
x +2.6 -2.6 = 10.4 -2.6
x = 7.8
Which of the equations or inequalities below are true?
A. 8-6<3
B. 8-6=2
C. 8-6>3
D. 6-8=2
Answers
Answer:
The answer is C because 8-6=2 and 2 is equal to 2
Step-by-step explanation:
What is the answer to 1+1
Answers
Answer:
5
Step-by-step explanation:
this is easy
Answer:
2
Step-by-step explanation:
Subtract six times the quantity 3a + 12b - 4c from eight times the sum of the quantities 14a +
70 and 5b - 12c
Answers
Answer:
94a - 32b - 72c + 560
Step-by-step explanation:
First get the product of 6(3a + 12b - 4c) = 18a + 72b - 24c.
Second get the sum of 14a + 70 and 5b - 12c = 14a + 5b - 12c + 70 then multiply by 8 and the product is 112a + 40b - 96c + 560. Subtract the first product from the 2nd product to get the final answer
I need help pls pls
Answers
Answer:
number one: 814 x 42=34,188 number two: 814 x 47=38,258
Step-by-step explanation:
well, both are correct giving the fact that in the bottom they want you to fill in the blank, both answers i have given start with 3 and end with 8, hope this helped!!
Twice the sum of a number and 9 is 30
Translate the statement into a mathematical equation & solve
Answers
Answer:
2x+9 is the equation
x = 10.5
Step-by-step explanation:
2x + 9 = 30
2x = 30 - 9 = 21
x = 21 ÷ 2 = 10.5
Hope this helps!
The thickness of DNA is about 3 * 10-9 meter. The thickness of the
smallest thing visible to the naked eye is 1* 10-4.
Compare the thickness of DNA to the smallest thing visible to the naked eye.
Answers
Answer:
The smallest thing is visible to the naked eye is 1/3x10^5 times as thick as DNA.
The thickness of DNA is 3x10^-5 of the thickness of the smallest thing visible to the naked eye.
Step-by-step explanation:
Answer:
Whatever is smallest to the naked eye is 1/3x10^5 times as thick as DNA.
ANSWER CORRECTLY FOR 25 POINTS (Again smh)
Use this rule to fill in the table.
Rule: Divide the input by 4 to get the output.
Divide by 4
Input Output
12 |
16 |
20 |
Answers
Answer:
the answers are 3, 4, and 5
The half-life of gold-195m is approximately 30.5 seconds.
Step 2 of 3: How much of a 12 gram sample of gold-195m would remain after 41 seconds? Round to three decimal places.
Answers
The amount of the 12 grams sample of gold-195m having a half-life of 30.5 s that would remain after 41 s is 4.726 g
How to determine the number of half-lives Half-life (t½) = 30.5 sTime (t) = 41 sNumber of half-lives (n) =?n = t / t½
n = 41 / 30.5
n = 82/61
How to determine the amount remaining Original amount (N₀) = 12 gNumber of half-lives (n) = 82/61Amount remaining (N) =?N = N₀ / 2ⁿ
N = 12 / 2^(82/61)
N = 4.726 g
Learn more about half life:
https://brainly.com/question/26374513
what is the slope of the line that contains the points (13,-2) and (3,-2)? Be sure to simply result
Answers
Answer:
0
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-2-(-2))/(3-13)
m=(-2+2)/-10
m=0/-10
m=0
Which of these units would be best to use to measure the length of a box of tissues?
A. Grams
B. Kilograms
C. Centimeters
D. Kilometers
Answers
Answer:
Metric Unit: US Standard Unit (English Unit or Customary Unit) Millimeter (mm) Used to measure very short lengths or thicknesses. Example, length of a pencil tip. Centimeter (cm): Used to measure small lengths. Example: Length of a pencil. Meter (m): Used to measure big lengths. Example: Length of a classroom. Kilometer (km):
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
A box of tissues is not that big, so we can't use kilometers.
You are only measuring the length, not the weight, so we can't use grams or kilograms.
The only option left is C, centimeters.
Assume a corporate bond pays a 5 percent coupon and matures in ten years. What will be the change in the current price of this bond if market interest rates increase from 5 to 5.5 percent?
Answers
The change in the current price of the bond when the market interest rates increase from 5% to 5.5% is a fall in the price of the bond.
What happens to bond prices with increased market interest rates?The attractiveness of bonds occurs when the interest rates fall. This fall drives up demand for bonds with fixed interest rates and the increasing demand causes bond prices to rise.
This implies that when interest rates rise, investors do not prefer the lower fixed interest rate paid by a bond. The reduced demand for bonds results in their declining prices.
Thus, when interest rates rise, bond prices fall and when interest rates fall, bond prices rise.
Learn more about bonds at brainly.com/question/25596583
Choose at random a person aged 20 to 39 years. Ask their age and marital status (never married, married, or
widowed/divorced/separated). The table gives the probability model for 12 possible answers.
Age in years.
20-24 25-29 30-34 35-39
Never married
0.227 0.156 0.089 0.054
Married
0.027 0.086 0.137 0.148
Widowed/divorced/separated 0.006 0.015 0.022 0.033
What is p(A)?
Answers
The probability model shows the distribution of people of age 20 to 39 years
The value of the probability P(A) is 0.631
How to determine the probability, P(A)From the question, the notation P(A) represents the probability that a person is either 20-24 years old or is married
From the table, we have the following parameters:
P(20-24) = 0.227 + 0.027 + 0.006 = 0.26P(Married) = 0.027 + 0.086 + 0.137 + 0.148 = 0.398P(20-24 and Married) = 0.027The probability, P(A) is then calculated as:
P(A) = P(20-24) + P(Married) - P(20-24 and Married)
Substitute known values
P(A) = 0.26 + 0.398 - 0.027
Evaluate the expression
P(A) = 0.631
Hence, the value of the probability P(A) is 0.631
Read more about probability at:
https://brainly.com/question/25870256
What is 10 x 10 in exponential form
Answers
Answer:
40
Step-by-step explanation:
Answer:
2= log(2x)
3=log(x)
4=log(x)
Step-by-step explanation:
A sports analyst determines that the number of points
scored in a basketball game is related to the number of
shots taken during the game. The least-squares
regression line is V = 5.0 + 1.2x, where y is the predicted
number of points scored and x is the number of shots
taken.
In one game, a team takes 50 shots and the residual is
10. How many points were scored by this team in this
game?
O 45
O 55
O 65
O 75
Answers
Answer:55
Step-by-step explanation:
i had that question in my test
Answer:
the person above me is correct!
Step-by-step explanation:
Pls help me out I really need help
Answers
Answer:
9: 8
10: divisible by 2
11: 8 1/3
Step-by-step explanation:
This is a picture of a cube and the net for the cube.
What is the surface area of the cube?
54 in²
81 in²
324 in²
486 in²
Answers
cube surface area = 6 x 9 x 9 = 486 in²
What method would you choose to solve the
equation 2x- - 7 = 9? Explain why you chose this
method.
Answers
Answer:
2x2 - 7 = 9
Step-by-step explanation:
The factoring method can be chosen to solve the equation 2x2 - 7 = 9. It is one of the easiest methods as we can isolate the variable by factoring out the GCF and obtaining the values.
Hope it helps!!!brainliest pls!!!
We reached our goal by helping 2000 customers this month which is 14% more than last month. That means we must have helped how many customers last month?
Answers
Answer:
1754
Step-by-step explanation:
114% : 2000
100% : x
x =
[tex]2000 \times 100\% \div 114\% = 1754 \: customers \\ [/tex]
4 flower bunches require 48 roses. how many bunches can be made with 84 roses?
Answers
Answer:
7 flower bunches
Step-by-step explanation:
One flower bunch requires 12 roses since 48/4 is 12
then to find out how many flower bunches can be made by 84 roses you would have to divide 84 by 12 which gives you 7.
Answer:
7
Step-by-step explanation:
48 roses divided by 4 roses is 12 roses per bunch.
84/12=7
solve the equation..
Answers
[tex]\\ \sf\longmapsto \dfrac{1}{4}y-7=\dfrac{1}{9}y[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{4}y-\dfrac{1}{9}y=7[/tex]
[tex]\\ \sf\longmapsto \dfrac{9-4}{36}y=7[/tex]
[tex]\\ \sf\longmapsto 5y=36(7)[/tex]
[tex]\\ \sf\longmapsto 5y=252[/tex]
[tex]\\ \sf\longmapsto y=50.4[/tex]
Surya purchased 176 return gifts for his birthday party. He spent 52,624 for all the gifts. Find the cost of one gift.
Answers
Answer:
who the f who spend the much money anyways divide 176 52,624 and u get 0.003344 or 299
Step-by-step explanation:
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEe
Answers
What does the • stand for n the problem. -4 • 6
Answers
Answer:
Multiplication
Step-by-step explanation:
simple form:
-4 x 6
-4 TIMES 6
therefore -4•6
Answer:
it stands for x or multiply
Step-by-step explanation:
A music downloading website reports that 5 out of every 7 songs downloaded are classified as pop
music. According to this information, predict how many of the next 500 songs downloaded will be pop
songs. Round your answer to the nearest whole number.
Answers
Answer:
357 songs were pop
Step-by-step explanation:
5 out of every 7 songs are pop
mathematically =5/7 is pop
.
therefore 5/7 of 500
=5/7×500
=357.143
to the nearest whole number = 357
8. The box plots show the heights of a sample of two types
of trees.
The median height of Tree _____ Is greater
WILL GIVE LOTS OF POINTS
Answers
How much more is required to make 780 g to 1 Kg ?
Answers
Answer:220g
Step-by-step explanation:
1 kg is equivalent to 1000g, therefore 1000g - 780g = 220g
Step by step
-there is 1000g in 1kg so you can do 1000 - 780 which is 220
I need help please ASAP !!
Answers
Step-by-step explanation:
5 An exterior angle of a triangle is equal to the sum of its two opposite non-adjacent interior angles. The sum of the exterior angle and the adjacent interior angle that is not opposite is equal to 180º.