Mathematics High School

Find the error & explain why it is wrong: Megan wanted to solve this problem: given that sin 0=-divided2/2, and cos =divided3/2, find tan 0

What did she do wrong

Find The Error & Explain Why It Is Wrong: Megan Wanted To Solve This Problem: Given That Sin 0=-divided2/2,

Answers

Answer 1

Answer:

As seen on the picture, all the steps A to D are correct.

Step A. Identity is correctStep B. The fraction is correctStep C. Simplification is correctStep D. Solution is correct

Note:

It could be more simplified by adding a step and multiplying both the numerator and denominator by √3: [tex]\frac{-\sqrt{2} }{\sqrt{3} } = - \frac{\sqrt{6}}{3}[/tex]

Related Questions

(Help!) I need somebody (Help!) Not just anybody (Help!) You know I need someone (Help!). Algebra question :)

Answers

Step-by-step explanation:

meetcome on (Help!) You know I need someone (Help!). Algebra question :)

Answer:

the 1st, 3rd, 6th and last one

Step-by-step explanation:

just use square roots

PLS HELP! WILL MARK BRAINLIEST!

Mr. Smith makes a pasta sauce
He mixes tomato concentrate: olive oil at a ratio of 3: 1

How many liters of tomato concentrate does he need to mix if he adds 3 liters of olive oil?

Answers

Answer:

9 litres of tomato concentrate

Part B Liam buys a pair of jeans that cost $29.99 and 5 shirts that each cost the same amount of money. He spends a total of $94.94. • Write an equation or inequality to represent the cost of each shirt that Liam buys. Define all variables used. • What is the cost of each shirt that Liam buys? Show your work.​

Answers

Given :

Liam buys a pair of jeans that cost $29.99 and 5 shirts that each cost the same amount of money.

He spends a total of $94.94.

Solution :

Let, cost of each shirt is $ x.

It is given that there are 5 shirt and each cost the same.

Also, the sum of 5 shirt and a pair of jeans is equal to $94.94 .

So,

[tex]29.99 + 5x = 94.94\\\\5x = 94.94 - 29.99\\\\x = \$ 12.99[/tex]

Therefore, the cost of each shirt that Liam buys is $12.99 .

Question 21 of 25
Which of the following is the coefficient in the algebraic expression 12x+ 24?
O A. 4
O B. x
C. 12
D. Z
SUBMIT

Answers

Answer:

12

Step-by-step explanation:

Coefficient is the number before the variable

Which is the slope of the line that passes through the points (3,17) and (7,25)?

Answers

Answer:

The slope is 2.

Step-by-step explanation:

2 7. Which numbers in the set {2,3,4,5} are solution(s) to the inequality 16 - 3x > 5?

A. 2 only
B. 3 only
C. 2 and 3
D.3,4, and 5​

Answers

Djdhhzns DVD’s hdudjdbdbbd

What does it mean to square a number? Provide an example to support your answer.

Answers

Answer:

When squaring a number it is essentially taking a number and multiplying it by itself. For example, 5^2 is 5×5 (=25).

What is the length of side c rounded to the nearest tenth of an inch?
17 in.
19 in.
С
The length of side c rounded to the nearest tenth of an inch is in.

Answers

Answer:

Step-by-step explanation:

This is a right triangle, and side c, our unknown, is the hypotenuse, the longest side in a right triangle. Using Pythagorean's Theorem, we have

[tex]17^2+19^2=c^2[/tex] which simplifies to

[tex]289+361=c^2[/tex] and

[tex]650=c^2[/tex] and

c = 25.5"

NEED HELP PLEASE I NEED THE ANSWER

Answers

Answer:

Step-by-step explanation:

The 2 lines are y=2x+12 (slope of 2 y-intercept at 12) and y=26 (line at y=26).

intersection= (7,26)

help fast please !!!!

Answers

Answer:

C=13

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2} \\\\5^{2} +12^{2} =c^{2}[/tex]

Emily is buying new cold-weather gear for her family. She pays $100 for 5 pairs of waterproof gloves that each cost the same amount. Four of the pairs of gloves are mittens. Which expression represents the total cost of the 4 pairs of mittens?​

Answers

5÷100=x

x=20

100-20=80

80= the total cost of the 4 pairs of mittens

5x=100
X=20
4x=80
This should be the expression

What is the length of a leg of a right triangle if the hypotenuse is 9 inches and the other leg is 8 inches.

Answers

Answer:

√17 or 4.12 inches

Step-by-step explanation:

√9²-8²=√81-64=√17 inches

or 4.12 inches

Francis is buying a new coffee table that is 45% off. The original price of the coffee table was $166. Which option gives the best estimate for the price after the discount?
A.$70
B.$85
C.$120
D.$100

Answers

about $92 so d) $100 is the best estimate

Answer: D

Step-by-step explanation:

What is the solution to the equation. |x- 4| = 17?
A. x= -13 or x= 21
B. x= 21
c. x= -21 or x= 13
D. No solutions exist.

Answers

A, x=-13 or x=21.

-13 - 4 (-13+ -4) is equal to -17. Due to absolute value bars, it is now positive 17.

21-4 = 17
Answer: C. x = -21 or x = 13

Step-by-step explanation:

what is the best choice for value y?

Answers

Answer:The answer is second option

[tex] {x}^{10 - 3} \\ {x}^{7} [/tex]

The correct answer is the second opinion. Have a great day lovely’s

What is 3^5 as a product of the same factor?

Answers

Answer:

9

Step-by-step explanation:

no links please!!!!!!!!!!!!!

Answers

x< -6 __________________

Answer:

Step-by-step explanation:

[tex]2 < -\frac{x}{3}[/tex]

To "undo" the division, multiply both sides of the inequality by 3.

[tex]6<-x[/tex]

To find  x, multiply both sides by -1, remembering that when you multiply (or divide) an inequality by a negative number, you have to switch the direction of the inequality sign (to avoid not telling the truth!!!).

[tex]-6>x[/tex]

Finally, it's a good idea to write the solution so the subject of the math sentence is x, not -6.

[tex]x<-6[/tex]

This isn't some kind of magic.  If -6 is bigger than  x,  then x  is smaller than -6.

Find the equation of the circle whose center and radius are given.

center ( 7, -3), radius = 7

Answers

Answer:

(x-7)^2 + (y+3)^2 = 49

Step-by-step explanation:

The general equation for a circle is given by

(x-h)^2 + (y-k)^2 = r^2

where ( h,k) is the center and r is the radius

(x-7)^2 + (y- -3)^2 = 7^2

(x-7)^2 + (y+3)^2 = 7^2

(x-7)^2 + (y+3)^2 = 49

Answer;

(x-7)^2 + (y+3)^2 = 49

Step-by-step explanation:

The general equation for a circle is given by

(x-h)^2 + (y-k)^2 = r^2

where ( h,k) is the center and r is the radius

(x-7)^2 + (y- -3)^2 = 7^2

(x-7)^2 + (y+3)^2 = 7^2

(x-7)^2 + (y+3)^2 = 49

Trigonometry is the study of____________

Answers

Answer:

relationships between side lengths and angles of triangles

Step-by-step explanation:

Answer:

Study of the angles and triangles

Step-by-step explanation:

Please help ill make you the brainiest(please no link people)

Answers

the answer to this should be C

WILL MARK BRAINLIEST PLEASE HELP ASAP !!!
Find the measure of the missing angles.

Answers

80 I believe hopefully it’s correct

Answer:

b=70 degree (by vertically opposite angle)

and c can be calculated as

b+c=180°

c=180°-b

c= 180°-70°

c= 110°

hence b=70° and c=110°

Simplify the expression.

12−3 ∙ 1210 ∙ 120


A: 367


B: 1


C: 17287


D: 127

Answers

Answer:

-435588

Step-by-step explanation:

12−3 ∙ 1210 ∙ 120

Multiply first

12-435600

Then subtract

-435588

Answer:

12^7

Step-by-step explanation:

I got it right in grandpoint

Which is a true statement based on the dot plots below?
10 20 30 40 50 60
10 20 30 40 50 60
Set A

Answers

Set a is less symmetric than set b

Math is hard -10/-10

Answers

Answer:

1 yup the answer is 1

Which of the following is the graph of the inequality y < 3x+ 1?
А
B
C
D
5
To (1.4)
(1.4)
(1.4)
5
(1.4)
(0.1)
(0.1)
€ (0, 1)
(0, 1)
-6
5
A. Graph A
B. Graph B
C. Graph C
D. Graph D

Answers

D is the correct graph.
Testing (1, 4) which on the line. 4 = 3x1 + 1 is true so the line is solid.
Testing (0, 0) which is below the line. 0 = 3x0 + 1 is true so the origin must be in the shaded region.



A car salesman sold three hybrid cars last week. The cars come in red, white, and black. A sale is listed as RWB if a red car was sold first, a white

was sold second, and a black car was sold third.

A list of all possible outcomes is shown. Each outcome has equal probability.

{RRR, RRW, RRB, RWR, RWW, RWB, RBR, RBW, RBB, WWW, WWR, WWB, WRR,

WRB, WRW. WBR, WBB, WBW, BBB, BBR, BBW, BWR, BWW, BWB, BRW, BRR, BRB)

What is the probability that the cars sold last week included a white car or the first car sold was red?

Answers

Answer:

23 / 27

Step-by-step explanation:

Total possible outcomes :

{RRR, RRW, RRB, RWR, RWW, RWB, RBR, RBW, RBB, WWW, WWR, WWB, WRR, WRB, WRW. WBR, WBB, WBW, BBB, BBR, BBW, BWR, BWW, BWB, BRW, BRR, BRB) = 27

Required outcome : 23

{RRR, RRW, RRB, RWR, RWW, RWB, RBR, RBW, RBB, WWW, WWR, WWB, WRR, WRB, WRW. WBR, WBB, WBW, BBW, BWR, BWW, BWB, BRW) = 23

Required outcome / Total possible outcomes

= 23 / 27

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Answers

Answer:

Answer is D

Step-by-step explanation:

Find the measurement of the base.
3.5 in
Area = 12.6 in?

Answers

3.6 in i believe
12.6 divided by 3.5
= 12.6/3.5
= 3.6
3.6 x 3.5
= 12.6 =12.6

NEED HELP ASAP!!!!!The perimeter of a ractangle is 176 ft. If the ratio of the length to the width is 9 : 2, what is the length of each side?

(P = 2l + 2w)

Answers

P=2l+2w

l+w equals half of the perimeter

220/2=110

the ratio of the length to the width is 7:3

7x+3x=110

10x=110

x=11

7*11=77 for the length

3*11=33 for the width

A=l*w

A=77*33

A=2541 square inches for the area

maybe you are getting the formula mixed up ?!?!

please help me out ill mark u brainlist

Answers

Answer:

a = 13

Step-by-step explanation:

Isolate the variables by dividing each side factors that do not contain the variable.

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