Mathematics High School

Please help with math it’s trigonometry and laws of sine I’m being timed

Answers

Answer 1

Step-by-step explanation:

x² = 50²+ 55² - 2 • 50 • 55 • cos61°

Related Questions

IF YOU KNOW MATH PLS HELP ME

Answers

Answer:

x ≈ 2.55

Step-by-step explanation:

Since the triangles are congruent then DE ≡ AB , that is

DE = AB

76x - 7 = x + 184 ( subtract x from both sides )

75x - 7 = 184 ( add 7 to both sides )

75x = 191 ( divide both sides by 75 )

x ≈ 2.55 ( to the nearest hundredth )

A local movie theater has an offer that for every seven movies you pay to go see, they will give you free passes for two other movies. If you paid to see 42 movies last year, how many free passes did you receive?

_free passes

A local movie theater has an offer that for every seven movies you pay to go see, they will give you free passes for two other movies. If you paid to see 42 movies last year, how many free passes did you receive?

Answers

Answer: 12

Step-by-step explanation: 42/7 = 6 and you get 2 free passes so 6 x 2 = 12

12

7 movies = 2 free passes
7x6 = 42
6x2 = 12

Lainey bought a set of 20 markers for $6
What is the cost of 111 marker?

Answers

Answer:

370

Step-by-step explanation:

First find the unit rate aka price per pencil: 20 divided by 6 equals 3.333

Then find amount for all pencils

3.333 by 111 is 369.963

Then we round up to have a realistic amount of pencils to 370

2. Which equation is equivalent to 2 + 4x = 5 - 3(x + 1)? A. 2 + 4x = 2x - 3 B. 2 + 4% = 5 - 3 -3. C. 6x = 5-(+ 1). D. 2 + 4 = 2/5 1).

Answers

Answer:

B) 2 + 4x = 5 - 3 - 3x

Step-by-step explanation:

By simplifying JUST the right side and re-arranging them

2 + 4x = 5 - 3(x + 1),

2 + 4x = 5 - 3x -3,

2 + 4x = 5 -3 - 3x

What is the value of x?
o 3
o 6
o 10
o12

Answers

Answer:

x = 6

Step-by-step explanation:

Sum of all the angles of a kite = 360

∠W + ∠Y + ∠V = 360

18x - 2 + 12x + 2 + 90 + 90 = 360 {Combine like terms}

18x + 12x -2 + 2 + 90 +90 = 360

30x + 180 = 360

30x = 360 - 180

30x = 180

x = 180/30

x = 6

I NEED HELP!! WILL GIVE BRAINLEST!!!

Solve the system below by GRAPHING:

Y=5x-8

Y=1/3x+6

Answers

Answer:

I promise you the app Math. way will save you it will do it for u and show you where to put it on the graph just download it

Beyonce is solving a system of equations: 2x – 3y = -2
4x + y = 24

She decides to use the elimination method to find the solution. She multiplies the second equation by 3 and adds it to the first equation to find 14x = 70, showing her that x = 5. Beyonce finds that y = 4.

Step 3: 4x + y = 24

4(5) + y = 24

20 + y = 24
-20 -20

y = 4

Step 1: 3(4x + y = 24) → 12x + 3y = 72
Step 2: 2x – 3y = -2
Solution: (5, 4)

+ 12x + 3y = 72
14x = 70

→ x = 5

Thinking about this process, Beyonce says out loud, “There are lots of ways I could go about solving this problem. I could do the method above or I could multiply the first equation by -2 and add the second.

Step 3: 4x + y = 24

4x + 4 = 24
-4 -4

4x = 20

x = 5

Step 1: -2(2x – 3y = -2) → -4x + 6y = 4
Solution: (5, 4)

Step 2: -4x + 6y = 4
+ 4x + y = 24
7y= 28

→ y = 4

“I seem to find that there is only one solution to the two equations, but I wonder if I will get the same solution if I use a different method?”

If Beyonce uses a different method, would she get the same solution? Be sure to show work or explain your reasoning.

Answers

Answer:

Step-by-step explanation:

Why is 40x-16 not equivalent?
Please help (i’m in 7th grade)

Answers

Answer:

40x-6 is not equivalent because 16 is not a multiple of 40

Step-by-step explanation:

if you write the multiples of 4o you will see that 16 is not one of them so that means 40x-16 is not equivalent

What is the percent equivalent to 3/2?Use a pattern like the one in the table to support your answer

Answers

3/2 = 150/100 = 150%

Indicate below whether the equation in the box is true or false.4/8 = to 6/10

Answers

Answer:

Not equal. So, false.

Step-by-step explanation:

Just cross multiply

40 and 48

so no, they're are not equal.

Answer:

False

Step-by-step explanation:

Burger = 8.00
Fries = 2.00
Drink = 1.00
Tax = 7%
Tip = 20%
Total = _______

Answers

Answer:

$13.79

Step-by-step explanation:

$8.00+$2.00+$1.00=$11.00

7%=$0.77

$11.00+$0.77=$11.77

20%=$2.02

$11.77+42.02=$13.79

The ratio of men to women working for a company is 7 to 5. If there are 312 employees total, how many women work for the company

Answers

there would be 130 women working for the company because 5x26=130 and 7x26=182 and 130+182=312

Solve the inequality: y - 18 < 55

Answers

Answer:

y < 73

Step-by-step explanation:

y−18+18<55+18

y < 73

Isaac buys 17 anti-pollution masks for £5.25 each.
He pays with five £20 notes.
a) How much change should Isaac get?
Write your answer in £.

Answers

Answer:

£10.75

Step-by-step explanation:

£5.25 x 17 = 89.25

5 £20 notes is £100

£100 - £89.25 = £10.75

Answer: £10.75

Step-by-step explanation:

£5.25 x 17 = 89.25

5 £20 notes is £100

£100 - £89.25 = £10.75

What is the variables in the expression

x2 + y - 2 - 16

Answers

Answer:

The variables in your equation are x and y;

the numbers in your equation are 2, -2, and -16

A cable company uses the formula S = 20,000 (1 + 0.08)y to estimate the number

of subscribers, S, that use their service after y years. If there were 20,000 cable

television subscribers when the cable company began, what is the meaning of the

expression (1 + 0.08)Y?

A. Every year the number of subscribers is estimated to increase by 8 over the number

of subscribers the year before.

B. Every year the number of subscribers is estimated to increase by 8% of the original

20,000 subscribers

C. Every year the number of subscribers is estimated to increase by 8% over the

number of subscribers the year before.

D. Every year the number of subscribers is estimated to increase by 80% of the

original 20,000 subscribers.

I

Answers

Answer:

C. Every year the number of subscribers is estimated to increase by 8% over the

number of subscribers the year before.

Step-by-step explanation:

Using the formula :

S = 20,000 (1 + 0.08)^y to estimate ;

S = number of subscribers ; y = years

The expression : (1 + 0.08)^y

0.08 = 0.08 * 100% = 8%

(1 + 0.08)^y represents a continous growth or increase in the number of subcsribers by 8% over the number of subscribers the preceeding year

HELP ME PLEASEE IM ALREADY LATE

Answers

Answer:

sorry

Step-by-step explanation:

Answer:

4x+3x-1+x+3=8x+2=82

8x=80

x=10

3x-1=30-1=29

Step-by-step explanation:

WHO EVER ANSWERS FIRST GETS BRAINLEST

When rolling a regular
six sided number cube
400 times, how many
times can you expect to
get a number greater
than one?

Answers

Answer: 99%?

Step-by-step explanation:

Given b(x) - 1X+4. what is b(-10)?
-10
-6
6
14

Answers

Answer:

D. 1×10⁻⁸ M

Explanation:

[H⁺] [OH⁻] = 10⁻¹⁴

(1×10⁻⁶) [OH⁻] = 10⁻¹⁴

[OH⁻] = 1×10⁻⁸

The answer is -6 you welcome :)

Forty percent of the 70 buttons in the box had 5 holes

a. What fraction of the buttons did not have 5 holes?

b. How many buttons did not have 5 holes?

Answers

Answer: a. 0.6

b. 42 buttons

Step-by-step explanation:

a. What fraction of the buttons did not have 5 holes?

Since forty percent of the 70 buttons in the box had 5 holes, the number of buttons in the box that doesn't have 5 holes will be:

= 100% - 40%

= 60%

= 60/100

= 0.6

b. How many buttons did not have 5 holes?

This will be:

= 60% × 70

= 0.6 × 70

= 42 buttons

The area of a rectangle is 14 square units. It has side lengths a and b. Given the following values for a, find b.

a=4 1/5

Answers

a = 4⅕ = 21/5

ab = 14
(21/5)b = 14
b = 14(5/21) = 10/3 = 3⅓

Help please! Thank you!!!!!!!!!!!!!!!!!

Answers

The top is 7 and the bottom is 56 I think

Answer:

[tex]7m\\ 322m^{2}[/tex]

Step-by-step explanation:

PLEASE HELP ITS DUE AT 11:59

Solve for the value of y.

(9y-6)° 51°

Answers

Answer:

Step-by-step explanation:

This is a right angle which means it is equal to 90. The angle is separated into two parts as shown - the sum of these two parts is equal to 90.

Calculations:

9y - 6 + 51 = 90

9y + 45 = 90

9y = 45

y = 5

it’s 5
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PLSSSSSSSSSS HEEEEEEEEEEEEEEEELLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
\sqrt(x^(2)-14x+49)=x-7

Answers

Answer:

infinite solutions

Step-by-step explanation:

note the expression inside the radical is a perfect square, that is

x² - 14x + 49 = (x - 7)², then

[tex]\sqrt{x^2-14x+49}[/tex] = x - 7

[tex]\sqrt{(x-7)^2}[/tex] = x- 7, that is

x - 7 = x - 7

Since both sides are the same then any value of x will make the equation true.

The equation has infinite solutions

Describe how you know whether an equation will be true for all values of x or true for no values of x.

Answers

Answer:

Substitute your answer for the variable x. If the equation looks accurate or is correct, then the value of x is the right answer. Not sure if this makes sense

Determining whether an equation is true for all values of x or true for no values of x requires simplifying the equation, determining its domain, checking for variable restrictions, and evaluating the equation for different values of x.

What is an equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Simplify the equation as much as possible using algebraic manipulations such as combining like terms, factoring, and expanding.

Evaluate the equation for a few different values of x to see if it holds true. If the equation is true for all values of x within the domain, then it will be true for all values of x. If there are any values of x within the domain that make the equation false, then it will be false for no values of x.

If the equation cannot be simplified or the domain cannot be determined, then it may require further analysis, such as graphing or using calculus techniques to determine its behavior.

Thus, determining whether an equation is true for all values of x or true for no values of x requires simplifying the equation, determining its domain, checking for variable restrictions, and evaluating the equation for different values of x.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ2

Determine the unknown angle in the triangle pictured below: pls help me /.

Answers

Answer:

Put the Brainlest please

Find m<YQR pls need grade gud.

Answers

Answer:

21°

Step-by-step explanation:

We can prove these two triangles congruent by the HL (Hypotenuse-Leg) theorem. Then, we know that m<YQR is congruent to m<PQY. We can then use their given values to form an equation.

5x+6=16x-27

Continue to solve . . .

33 = 11x

x=3

Therefore, we can plug this value of 3 into the expression for the value of m<YQR, and you will get

(16 x 3) - 27, which is equal to 21°.

Paco goes to the store and buys a carton of eggs. The carton has 4 rows of eggs. There are 6 eggs in each row. Then he buys 8 bagels. How many eggs and bagels does Paco have altogether? Its a? I got from school and I need help.

Answers

Answer:

Step-by-step explanation:

If there are 6 eggs in a row and there are 4 rows, the total number of eggs = 6 x 4 = 24 eggs

The sum of eggs and bagels = 24 + 8 = 32

Add the integers.
-6 + (-4) =( ?
B-2
C 2
D 10

Answers

Answer:

-10

Step-by-step explanation:

The answer is D. Negative equals negative.

The value of 3 expo3 + 4 expo2

Answers

Answer:

Step-by-step explanation:

[tex]3^{3}[/tex]+[tex]4^{2}[/tex]=

Solve:

[tex]3^{3}[/tex]= 3*3*3= 9*3= 27

[tex]4^{2}[/tex]= 4*4= 16

Then add them together:

27+16= 43

Hope this helps!

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