QUESTION 1: Marques made a mistake when solving this problem. On what line did he make the error?
Line 1 Line 2 Line 3 Line 4 Line 5​

Line 2 presents the error for the solution presented because the square of numbers: 14 and 8 was calculated incorrectly.

This law can be applied when two sides of the triangle and the angle formed for these sides are known. Therefore, from the law of cosines, it is possible to write the relation between sides and their respective cosines. See below:

                           [tex]c^2=a^2+b^2-2*a*b*cos(C)[/tex]

For solving this question, you should apply the Law Cosines and after that compare your solution with this exercise. From the comparison, you should identify the mistake for the solution presented in this problem.

                 [tex]c^2=a^2+b^2-2*a*b*cos(C)\\ \\ c^2=14^2+8^2-2*14*8*cos(80)\\ \\ c^2=196+64-224*0.1736\\ \\ c^2=196+64-38.8864\\ \\ c^2=221.1136\\ \\ c=\sqrt{221.1136}=14.9[/tex]

He made the error in line 2. Instead of calculating the square of 14 and 8, he multiplied these numbers by 2. This was the error.

Read more about the law cosines here:

https://brainly.com/question/7872492

5. A group of eighth-graders at your school is thinking of forming a club whose members rent DVDs. The club would also rent DVDs to non-members but at a higher price. They decided to create a membership for $20 flat fee and then charge $4 per DVD for members. Non-members could also rent a DVD, but for $5 per DVD. When would the membership be worth the money?

What is 37.025 written in word form

HELP ILL GIVE BRaINLIeST

Julian is wrapping a birthday present for his sister. He starts with 2 yards of ribbon. Then, he cuts off 9 inches to decorate the present. How many inches of ribbon does he have left now?
inches

A bag of marbles contains 4 which are red, 4 which are blue and 4 which are green. How many marbles must be chosen from the bag to guarantee that two are the same colour

Do exactly what it’s says please!

can you please help me ​

4/5,278 what's the answer

. What is the probability of flipping a coin twice, and FIRST landing on heads,
THEN landing on tails?

help!! 100 points! (IF SPAM I WILL REPORT YOU AND IF YOU WANT POINTS TYPE FRE ANSWERS IN SEARCH)

Which deal is better? 10 slices of cheese at $2.48 or 12 slices of cheese at $3.18?

Question 3 options:

10 slices of cheese at $2.48.


12 slices of cheese at $3.18.


Neither. They are the same.

The average depth of the Arctic Ocean is 4 x 10^3 feet while the average depth of the Atlantic Ocean is 1.2 × 10^4 feet. How many times more deep is the Atlantic Ocean than the Arctic Ocean?

At Kroger 10 waffles cost $2.56. what is the unit price for 1 waffle at Kroger?​

Determine whether the underlined number describes a population parameter or a sample statistic. Explain your reasoning. Sixty-five of the 93 passengers aboard an airship survived an explosion Choose the correct statement below.
A. The number is a sample statistic because it is a numerical description of all of the passengers that survived.
B. The number is a population parameter because it is a numerical description of all of the passengers that survived.
C. The number is a population parameter because it describes the people in the airship, which is a subset of all people.
D. The number is a sample statistic because it describes the people in the airship, which is a subset of all people.

carolina decides to make some bracelets. she pus some beads on a wireto make the bracelets. The wire is 1m in length. Carolina uses 1/4 of the wire for each bracelet. Carolina thinks that each bracelet will use 20cm of wire.Is Caroline correct?​

A. Answer what is asked. Show your solutions. 1. Given the measure of one interior angle of a regular polygon, give the number of sides.
a. 108 b. 140
2. What is the sum of the different measures of the exterior angles of a polygon with 105 sides
3. What is the measure of the exterior angle of a regular dodecagon?

please I need the answer right away !​

The value of y varies directly with x. When y=2 What is the value of y when x is? 0 1 0 29 7 0 31 0 3 34​

The figure shown is a square with a triangular hole cut into one side. The ratio of the heighth of the
triangle to a side length of the square is 7 to 8. The ratio of the base b of the triangle to the side length of
the square is 1 to 2. If the area of the square is 64 square inches, what is the area of the shaded part of the
square?
b
h
The area of the shaded part of the square is
square inches.

A scoop of ice cream in the shape of a whole sphere sits in a right cone The radius of the ice cream scoop is 3.0 cm and the radius of the cone is 3.0 cm
b. How tall must the height of the cone be to fit all the ice cream without spilling if it melts? show all your work​

the tangent to curve y = 2x / x - 1 which is not equal to1, at the point (2,4) and the normal to the same curve at the point (3,3) intersect at the point P find the coordinate of p

Laine Is making fruit salad recipe calls for half cup shredded coconut lane has only 1/4 cup measure how can she measured the correct half cup amount

simplify (-34.67)^0

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Find and describe the mistake in this equation. can someone help

Find the domain of the function expressed by the formula: y= 1/x +7

PLEASE HELP ILL DO ANYTHINGG !!!!,,,,,,,

Which of the following shows numbers ordered from least to greatest

Round 9000000 to one decimal

HELPPPP!!!


Proof:


Statements Reasons


1.

//


1.


2. are alternate

interior angles


2.


3. 3.

4. 4.

5. 5.


Buntun Bridge

A ternary string is an ordered string of characters which consists of digits (0,1, or 2). For example, the ternary string 2122010 consists of exactly 2 zero's, 2 one's and 3 two's; another ternary string meeting these conditions is 0021221. How many ternary strings are there with exactly 4 zero's, 3 one's and 6 two's?

The graph of y = f ′(x), the derivative of f(x), is shown below. List the intervals where the graph of f is concave down.
(–4, –2) U (2, 4)
(–2, 2)
(–4, 0)
(0, 4)