Mathematics High School

another trigonometry question

i just want this test to be over >-

Another Trigonometry Questioni Just Want This Test To Be Over >-

Answers

Answer 1

Answer:

e) cos(90-x)

Step-by-step explanation:

sinx=cos(90-x)

Related Questions

In the figure below, ∆ABC ~ ∆QRS.



If AB = 50, AC = 60, QS = 6, find QR.



Write a proportion and solve.

QR = ?

Answers

QS/AC=6/60=1/10

QR/AB=QR/50=1/10

QR=5

SO THAT TRIANGLE ABC IS EQUAL TO TRIANGLE QRS(2SIDES PROPORTIONAL.INC. ANGLE)

Answer:

QR = 5

Step-by-step explanation:

It's given that ∆ABC ~ ∆QRS. As both of them are similar , the ratio of corresponding sides of both triangles will be proportional to each other.

[tex] \frac{AB}{QR} = \frac{BC}{RS} = \frac{AC}{QS} [/tex]

AB = 50 ; AC = 60 ; QS = 6

From the above proportion ,

[tex] \frac{AB}{QR}= \frac{AC}{QS}[/tex]

Putting all the values ,

[tex] \frac{50}{QR} = \frac{60}{6} [/tex]

[tex] = > \frac{50}{QR} = 10[/tex]

[tex] = > QR = \frac{50}{10} = 5[/tex]

|
-6y + 4x = 8
Slove for y

Answers

Answer:

y  = [tex]\frac{2}{3 }[/tex]x - [tex]\frac{4}{3}[/tex]

Step-by-step explanation:

-6y + 4x = 8  Subtract 4x from both sides of the equation

-6y = -4x + 8  Divide everything by -6

y  = [tex]\frac{2}{3 }[/tex]x - [tex]\frac{4}{3}[/tex]

Anyone wanna help me do this because I’m not understanding how this works

Answers

Answer:

its b .

Step-by-step explanation:

Find the area of this parallelogram please help!!

Answers

260cm^2 because the area of a parallelogram is base x height. The base length is 20cm and the height is 13cm. Multiply them together and you get 260cm^2

Brennan earns $14.50 each week for walking his neighbor's dog. He earns $18 each week for mowing another neighbor's lawn. How much money will Brennan earn in 5 weeks?

Answers

Answer:

$162.50

Step-by-step explanation:

X = (14.50*5) + (18*5)

x = 72.50 + 90

x = 162.50

F(x) = x^2+3; g(x) = square root of x-2 find f(g(x))

Answers

f(g(x)) = x + 1 . Just replace square root of x-2 to x in f(x)

13d+8=-1

b=?
need answer

Answers

Answer:

d=[tex]\frac{-9}{13}[/tex]

Step-by-step explanation:

Original equation: 13d+8=-1

1. Subtract 8 from both sides of the equation to get:

13d=-9

2. Divide both sides by 13 to get:

d=[tex]\frac{-9}{13}[/tex]

Answer:

-9/13

Step-by-step explanation:

i took the iready quiz

Which set of ordered pairs represents a function? *
O {(1,8), (8, 1), (1,5), (5, 1)}
O {(2,1),(3,1),(4,3), (5,3)}
O {(5,1),(3, 8), (3,7), (7.1);
{(5,1),(5,6), (1,3), (9.7)}

Answers

The answer is the second choice.

There cannot be repetitive domains in one set. Therefore, all choices except the second choice have repetitive domains.

Thus, not making them a function but rather a relation instead for other choices. The only relation that is a function here is the second choice.

the second one because the x values should not have repeating numbers

what is the value of 81 3/2 ?​

Answers

Answer:

82.5

Step-by-step explanation:

3/2 = 1.5

81+1.5=82.5

A rectangle with a width of 2.5 cm and a length of 3 cm is dlated by a scale factor of 4. Which statements about the new
rectangle are true? Check all that apply.

Answers

Answer:

Step-by-step explanation:

1 - 3 - 6 - 7

For dinner, jerry had a double cheeseburger and one order of medium fries totalalling 1200 calories. Joe has two double cheeseburgers and one medium fry totalling 1260 calories. How many callories are in one cheeseburger and medium frys

Answers

Answer: See explanation

Step-by-step explanation:

Let the number of callories that are in one cheeseburger be = x

Let the number of calories that are in one medium frys be = y

Therefore, the question can be formed into an expression as:

Jerry = 1x + 1y = 1200

Joe = 2x + 1y = 1260

x + y = 1200 ....... i

2x + y = 1260 ....... ok

Subtract equation i from ii

x = 60

Therefore, number of callories that are in one cheeseburger is 60 calories

Since x + y = 1200

60 + y = 1200

y = 1200 - 60

y = 1140 calories

The number of calories that are in one medium frys is 1140 calories

Janine has $45. She plans to spend $70. Her father gives her $10. How much money does she need to borrow from her sister?

Answers

Answer:

i think -15 would be ur answer

Step-by-step explanation:

subtract 70 and 55 and u should get -15 if its right

She needs to borrow £15 of her sister

42/12 - 85/25 + 117/30

Answers

Answer:

the answer is 4 it think it is correct

Answer:

4

Step-by-step explanation:

42/12=7/2

85/25=17/5

117/30=39/10

So

7/2-17/5+39/10

35-34+39/10

40/10

4

Whats The Answer Marking Brainliest, Please explain your answer:D...................

Answers

It’s D because, it’s the only one that uses the ratio symbol.

Answer:

10/19

Step-by-step explanation:

the question is asking you for the amount of time that Tia spends playing the computer to the amount of time that she spends playing outside.

she spends 10 minutes playing on the computer

she spends 19 minutes playing outside

therefore it is 10:19 or 10/19 or 10 to 19

Which multiplication expression is equal to 1/4÷1/3​?


A.1/4×1/3


B.1/4×3/1

C.4/1×1/3

D.4/1×3/1

Answers

Answer:

1/4 × 3/1

To divide by a fraction you have to multiply by the inverse of the second fraction.

If you take a number, times by 5 then subtract 9. You get the same as if you took the number, times by 4 then add 1. What is the number?

Answers

Answer: 7

Step-by-step explanation:

Answer:

Let number be x

5x + 9= 4x + 1

5x - 4x = - 9 + 1

x = - 8

What is the m∠L?




54°

52°

40°

45°

Answers

The answer to ur question is 54°

Find the slope of a line that contains the two points (-2,8) and (1,2)

Answers

Answer:

[tex]m = -2[/tex]

Step-by-step explanation:

Slope Formula: [tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

Points: (-2, 8), (1, 2)

[tex]m = \frac{8-2}{-2-1}[/tex]

[tex]m = -2[/tex]

What is a correct first step in solving the inequality -4(3-5x)>-6x+9?

Answers

Answer:

you would distribute the -4 into the parenthesis and the answer would be option D

Step-by-step explanation:

Sally has 42 cookies . She wants to eat some and share some with her class. If she hopes to share at least 35 of them with her class, how many cookies can she eat?

Answers

Answer:

1.2 please tell me if im wrong

Step-by-step explanation:

Reggie is deciding when to go bowling with his friends. Friday night is glow-bowling night, with 5 glow-bowling games for $22.50. But the early-bird special on Saturday morning offers 8 games for $30. How much more does glow-bowling cost per game?

How much does it cost per game?

Answers

$.75 per game

Step by step explanation:

Hanna Was Riding Her Bike For 11/12 Mile long. She Rode For 1/2 Mile And Then Stopped To Rest. She Rode Another 1/3 Mile And Then Had A Flat Tire. How Far Dose Hanna Have To Walk Her Bike To Complete The Loop?

Answers

Hanna have to walk her bike for 1/12 mile to complete the loop .

In the question , it is given that

distance Hanna had to ride to complete the loop  = 11/12 mile

distance rode by Hanna before rest = 1/2 mile

distance rode by Hanna before flat tire = 1/3 mile

So the distance Hanna has to walk her bike to complete the loop = total distance of the loop - distance rode by Hanna before rest - distance rode by Hanna before flat tire .

On substituting the values from above we get ,

distance Hanna has to walk her bike to complete the loop = 11/12 - 1/2 - 1/3

taking the LCM of 12 , 2 and 3 as 12

we get ,

= 11/12 - 6/12 - 4/12

Simplifying further we get ,

= (11-6-4)/12

= (11-10)/12

= 1/12

Therefore , the distance Hanna have to walk her bike to complete the loop is 1/12 mile .

Learn more about Fractions here

https://brainly.com/question/28489230

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PLS HELPPPPPPPPPPP Determine the approximate value of X round to the nearest hundredth

Answers

Answer:

Step-by-step explanation:

We can immediately elimate two answers since x cannot be larger than the hypotenuse, which is 9. You can cosine = adjaent/hypotenuse, which gives the equation cos(54) = x/9, which simplifies to x = 9*cos(54). When you plug this into a calculator, you should get 5.29. Keep in mind that 54 is measured in degrees and not radians because.

Answer:

D.) x = 5.29

Step-by-step explanation:

first find the last angle measure 180-90-54=36

use law of sines to find x

sin90/9=sin36/x

(sin90)(x) = (sin36)(9)

(sin90)(x) = 5.29

x = 5.29

My assigned ratio is: 2:5 Give Two examples of ratios that are equivalent to my ratio:

Answers

Answer:

4:10 and 6:15 are equivalent to 2:5

The equation x+3y=2 can be rewritten in the equivalent form y=___x+____ which revels a slope equals to ___


-3,-2,-1,-2/3,-1/3,1/3,2/3,1,2,3

Answers

Hello!

[tex]\large\boxed{Slope = -\frac{1}{3}}[/tex]

x + 3y = 2

Rewritten into slope form: y = mx + b

Find the slope when rewritten:

Move x to the right hand side of the equation. (Subtract)

x - x + 3y = 2 - x

3y = 2 - x

Divide both sides by 3:

y = 2/3 - 1/3x

Rearrange:

y = -1/3x + 2/3.

The slope is equivalent to -1/3.

Isaac buys eggs and apples at the store. .He pays a total of $24.26. • He pays a total of $4.36 for the eggs. • He buys 5 bags of apples that each cost the same amount. Write and solve an equation which can be used to determine x, how much each bag of apples costs. Equation: Answer: x = Submit Answer​

Answers

Each bag would cost 3.98$

The equation that represents the cost of each bag of apples is 5x + 4.36 = 24.26 and the cost is $3.98.

What is the solution to the equation?

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

Isaac buys eggs and apples at the store. He pays a total of $24.26. He pays a total of $4.36 for the eggs. He buys 5 bags of apples that each cost the same amount.

Let x be the cost of each bag of apples. Then the equation is given as,

5x + 4.36 = 24.26

Simplify the equation, then we have

5x = 24.26 - 4.36

5x = 19.90

x = 19.90 / 5

x = $3.98

The equation that represents the cost of each bag of apples is 5x + 4.36 = 24.26 and the cost is $3.98.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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what is the equation for the image graph

reflect f(x) = x² +1 over y axis​

Answers

Answer:

= 25

Step-by-step explanation:

solve the equation and answer it

what is [tex]\frac{7}{200}[/tex] as a decimal

Answers

Answer:

7/200 as a decimal is 0.035

Step-by-step explanation:

Simply divide the numerator by the denominator:

= 7/200

= 7 ÷ 200

= 0.035

7/200 as a decimal is 0.035

Bella has $1,200 in her bank account. She wrote a check to pay her rent for $975.25. Then, she deposits $105 into the account. What is the balance of her account?

Answers

Answer:

The balance in her account is $329.75

p=a+b+c solve for a
please help

Answers

Answer:

a=p-b-c

Step-by-step explanation:

p=a+b+c

a=p-b-c

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