I need help please I don’t understand this

Answers

Answer 1

Answer:

cosB = 21/75, tanB = 72/21

Step-by-step explanation:

Here, we can use pythagoras to figure out all sides. 75^2-72^2 = 21^2. So, we have sides with lengths 21, 72, and 75. We are given that sinB = 72/75. The definition of sin is opposite of hypotenuse. So, the opposite of angle B is side CA and the hypotenuse is BA. This allows us to find that BC is the 21 length side. The cos of an angle is adjacent over hypotenuse. In this case, it is BC/BA which is 21/75. similarly, Tan is opposite over adjacent or 72/21. And we are done. Those are the values. TO remember these, use the acronym:

SOH CAH TOA. S refers to sin and OH refers to opposite over hypotenuse. Similarly C is cos, A is adjacent, and H is hypotenuse, and then T is tan, o is opposite and A is adjacent.

Related Questions

−2+(−7)? help me what is the answer please help.

Answers

Answer:

-9

Step-by-step explanation:

-2 + (-7) = -2 - 7-2 - 7 = -9

I hope this helps!

Answer:

-9

Step-by-step explanation:

Please make me Brainliest

1. Multiply (3)(−4)(2). (5 points)

Answers

Answer:

-24

Step-by-step explanation:

Answer-24

Step-by-step explanation:

3 x -4 x 2

6 x -4 =

-24

Find ‘k’ if 2 k- 1, 7, 11are in A.P.

Answers

Given:

• 2k -1 , 7 and 11 are in AP .

To find :

• The value of k .

Solution :

• As we know that , In AP common difference is same .

• b - a = c - b

=> 2b = a + c

Here :

• a = 2k-1

• b = 7

• c = 11

=> 2 (7) = 2k-1+11

=> 14 = 2k+10

=> 2k = 14-10

=> 2k = 4

=> k = 4/2

=> k = 2 .

Hence ,the value of k is 2 .

Hope it will help you.

Regards.

A fruit bowl contains 2 bananas, 5 oranges, and 4 apples.

Carol wrote the ratio 511. What could Carol’s ratio represent? Explain your reasoning based upon what you know about ratios.

Answers

Answer:

Oranges: to all fruit in the bowl.

Step-by-step explanation:

A ratio is similar to a fraction in the way that it represents a part to a whole.

There are 11 fruits total in the bowl (the whole), and oranges are the only fruit in the bowl that equal 5 (the part).

Answer:

Step-by-step explanation:

Oranges: to all fruit in the bowl.

Step-by-step explanation:

A ratio is similar to a fraction in the way that it represents a part to a whole.

There are 11 fruits total in the bowl (the whole), and oranges are the only fruit in the bowl that equal 5 (the part).

June has a savings account with an annual simple interest rate of 2.6%. She hopes to gain $6,500 in interest over a period of eleven years. To accomplish this, June invested $17,801 in the account, but later realized that this was not enough money. To the nearest dollar, how much more money should June have initially invested to reach her goal?

Answers

Answer:

Step-by-step think she needs 2.73861528462

The amount of money invested in an account with simple interest at an annual rate of 2.6% would be $22,727.27.

What is simple interest?

Simple interest is a method of calculating the interest charge. Simple interest can be calculated as the product of principal amount, rate and time peroid.

Simple Interest = (Principal × Rate × Time) / 100

Given that June has a savings account with an annual simple interest rate of 2.6%. She hopes to gain $6,500 in interest over a period of eleven years.

Rate = 2.6 %

Therefore, Simple Interest = (Principal × Rate × Time) / 100

Simple Interest = P× 2.6% × 3

6,500 = P× 2.6/100 × 3

P = 22,727.27

Hence, the amount of money invested in an account with simple interest at an annual rate of 2.6% would be $22,727.27.

Learn more about simple interest here;

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Jayvon has 33.6 points in a competition. He loses 5.5 points,
Write and then evaluate an addition expression to determine Jayvon's current points.

Answers

Answer:

33.6+(-5.5)=28.1

Step-by-step explanation:

Since positive times negative is equal to negative, we can multiply -5.5 by an addition symbol, making it an addition problem, and making it the same expression.

To evaluate the expression, we can do 33.6-5.5.

When adding or subtraction decimals, write it stacked like a normal problem, and line up the decimal places, like so.

33.6-

5.5

Then you can subtract normally, getting 28.1

which two ratios quantities that are proportional
A. 9/5 and 19/10
B. 25/25 and 20/24
C. 4/6 and 10/16
D. 15/10 and 21/14

Answers

Answer:

Step-by-step explanation:

9/5 and 19/10 so yeah hope it helps

Answer:

C. 15/10 and 21/14

Explanation:

A P E X

convert 300 seconds to minutes there are 60 seconds in 1 minute

Answers

Answer:

5 Minutes

Step-by-step explanation:

If you divide 300 by 60 you get 5.

Answer: 5 MINUTES

Step-by-step explanation:

Rewrite the expression using the distributive property: 3(2r + 2)

Answers

Answer:

3(2r+2) = 6r + 6

Step-by-step explanation:

Three times to is six just add the ''r'' to the six and you have six ''r'' then youdo three times two which is six

Two pounds of grapes cost $6. How many pounds of grapes can
you get for $1? (hint: write a repeating decimal as a fraction)

Answers

Answer:

1/3 of a pound .333

Step-by-step explanation:

6/2 =3

1/3= .333

Answer:

1/3 to 1 and 1 to 3

Step-by-step explanation:

Solve the notable products (x-12).(x+12)

Answers

Answer:

x^2 -144

Step-by-step explanation:

What is f(-8) for the function f?
F= 11(x-24)/2

Answers

Answer:

-176.........................

PLSS HELPP
Choose the equation for the line in slope-intercept form.

A y=2x+3
B y=1/2x+3
C y=1/2x−3
D y=−1/2x−3

Answers

Answer:

C or D, they look the same

Step-by-step explanation:

1. The graph passes through (2, -4) and (6, 0). You can use the rise over run formula to find the slope, so if you were to use the line to draw a triangle it would go to the right 2 spaces and up 1. Therefore the slope is 1/2.

2. Then you just need to see where the line crosses the y-axis (the vertical line). You can see here that it crosses at (0, -3).

3. Writing it in slope-intercept form is y = mx + (or -) b. Soooooo it would be y = 1/2x -3.

I hope this helped!

C - The slope is 1/2 and the y intercept is (0,-3)

brainly wont lemme do nun

Answers

lol ur wasting ur points

Answer:

why tho bro bro

Step-by-step explanation:

why tho bro bro

The Toys of Life store had 240 customers on October 24th. They had 264 customers on
October 25th. What was the percent increase in customers from October 24th to October 25th?

Answers

Answer:

Step-by-step explanation:

I think its 24 because 64÷20=40

What is -2(x - 5)- 11 in simplest form?

Answers

It would be -2x-1 if u need steps comment

Answer:

-2x - 1

Step-by-step explanation:

-2(x-5)-11

We need to follow order of operations to simplify this expression. Order of operations is PEMDAS (Parentheses, exponents, multiplication, division, addition, subtraction)

-2(x-5)-11

-2x + 10 - 11

-2x - 1

WILL GIVE BRAINLIEST IF CORRECT

Answers

Answer:

la respuesta correcta es laC

han ku po ammo paumahin

Water is steadily dripping from a faucet into a bowl. You want to write an equation that represents the number of milliliters y of water in the bowl after . What is the constant of proportionality for the relationship between the number of milliliters y of water in the bowl and the time in seconds x? What is the equation? Water from Dripping Faucet Time in Seconds (x) Milliliters in Bowl (y) 20 320 35 560 45 720 60 960

Answers

9514 1404 393

Answer:

k = 16y = 16x

Step-by-step explanation:

y is proportional to x when it satisfies the equation ...

y = kx

where k is the constant of proportionality. The equation can be solved for k by dividing by x:

k = y/x

The value of k for the given relation is ...

k = (320 mL)/(20 s)

k = 16 mL/s . . . the constant of proportionality

Then the equation is ...

y = 16x

39
Which statement is true of the numbers
and -0.328?
6 Which equ
rational nu
А
0.33.
A Only 39 is rational.
B
0.33
B
Only -0.328 is rational.
C 0.35
Both numbers are rational.
D 0.3
Both numbers are not rational.

Answers

It is in fact number 7

Which point lies on the graph of the function shown below y=-x^2+5x-3

A.(1,4)
B.(0,3)
C.(2,3)
D.(-2,2)

Answers

Answer:

C: (2,3)

Step-by-step explanation:

to solve this algebraically just plug in the x and y values of the points and see if they are true, but here is the graph to juse show you

If the domain of a relation is all whole numbers between 2.5 and 7.5, and the range contains 6 different values, can you determine whether the relation is a function? Explain your reasoning. Choose the correct answer below. A. The domain has more values than the range, so at least one range value is mapped to by more than one domain value. The relation is not a function. B. The domain has fewer values than the range, so there must be a domain value which maps to more than one range value. The relation is not a function. C. The domain has as many values as the range, but it cannot be determined whether the relation is a function with only the given information. D. The domain has as many values as the range, so each domain value maps to only one range value. The relation is a function.

Answers

Answer:

This relation is not a function as the domain has fewer values than the range, so there must be a domain value which maps to more than one range value.

Step-by-step explanation:

A relation is said to be a function if each and every element of the domain has a distinct value value in the range.

Domain of a relation is a set of all whole numbers between 2.5 and 7.5, and the range contains 6 different values.

Whole numbers between 2.5 and 7.5 are [tex]3,4,5,6,7[/tex]

This relation is not a function as the domain has fewer values than the range, so there must be a domain value which maps to more than one range value.

B. This relation is not a function as the domain has fewer values than the range, so there must be a domain value which maps to more than one range value.

As we know that:

A relation is said to be a function if each and every element of the domain has a distinct value value in the range.

It is given that Domain of a relation is a set of all whole numbers between 2.5 and 7.5, and the range contains 6 different values.

Now, whole numbers between 2.5 and 7.5 are:

[tex]3,4,5,6[/tex]

There are 4 numbers in the domain and 6 numbers in the range.

That is the elements in domain are less than the elements in the range.

Therefore, this relation is not a function as the domain has fewer values than the range, so there must be a domain value which maps to more than one range value.

Hence the correct option is A.

Learn more:https://brainly.com/question/2264373

help me it's my homework

Answers

Answer:

2. Answer is 4 and for 3. P= 1/4s

Step-by-step explanation:

Simply divide the values of one another.

This results you with:

8/2 = 4

12/3 = 4

10/5 = 2 -> I think there was an error or typo here

40/10 = 4

The constant proportion would be 4 because it is constant in every situation for S and P.

The equation would be p= 1/4s because 1 value of p would equal 4 s.

what is the value of x in the equation 3(x-2)+4x=10(x+1)

Answers

Answer:

-16/3 =x

Step-by-step explanation:

3(x-2)+4x=10(x+1)

Distribute

3x -6 +4x = 10x +10

Combine like terms

7x -6 = 10x+10

Subtract 7x from each side

7x-6-7x = 10x-7x +10

-6 = 3x+10

Subtract 10 from each side

-6-10 = 3x+10-10

-16 = 3x

Divide by 3

-16/3 = 3x/3

-16/3 =x

The equation a = StartFraction one-half EndFraction left-parenthesis b 1 plus b 1 right-parenthesis.(b1 + b2)h can be used to determine the area, a, of a trapezoid with height, h, and base lengths, b1 and b2. Which are equivalent equations? Check all that apply.

Answers

Answer:

It's a &d

Step-by-step explanation:

The required Area of trapezoid(a) = 1/2(b1+b2)h.

What is quadrilateral?

Quadrilateral is four sided shape as given in the picture in question.

Question seems to be incomplete. So the correct option resembles with
Area of trapezoid a = 1/2(b1+b2)h

Thus, the required area of trapezoid
a = 1/2(b1+b2)h

Learn more about quadrilateral here:
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Evaluate the expression for x = 2 and y = 4.

Answers

Answer:

2985968

Step-by-step explanation:

your welcome

Answer:

Step-by-step explanation:

12(2*2*2) =96

2*2*4=16

96-16=80

8x+x(−2x+6)−7(−2x2+5x−6)
help me this

Answers

Answer: 12x2 -21x +42

Step-by-step explanation:

Are the lines parallel? y = x + 4 and y = x-2

A. yes, they have the same slope and a different y-intercept
B. no, they are not parallel

Answers

Answer:

Step-by-step explanation:

Remember that parallel lines have the same slope.

The y-intercept does not matter.

We have the two equations:

[tex]y=x+4[/tex]

And:

[tex]y=x-2[/tex]

The slope is the coefficient in front of the x.

In the first equation, we can rewrite it as:

[tex]y=(1)x+4[/tex]

Therefore, the slope of the first equation is 1.

Similarly, for the second equation, we can rewrite it as:

[tex]y=(1)x-2[/tex]

The slope of the second equation is also 1.

Therefore, since their slopes are equivalent, they are parallel.

Thus, our correct answer is A.

please help, due today thanks

Answers

the second question is 48 !!
mark me brainliest please <3

Answer:

what are the given of that hakdog

graph for y=2/3x-4

Answers

Y intercept at -4 and it will be increasing from left to right because it has a positive slope.

Answer:

2/3x-4

Step-by-step explanation:

I’m dumb too

help show work
assig 8
(a)solve the inequality
(b)graph the solution on the real number line.
(c)write the solution in interval notation.
29
30
31
32
33

Answers

Answer: see below

Step-by-step explanation:

29) -5x ≥ 30

÷ -5 ↓ ÷ -5

x ≤ -6

Graph: ←--------- ·

-6

Interval Notation: (-∞, 6]

30) -4x < -40

÷ -4 ↓ ÷ -4

x > 10

Graph: o---------→

Interval Notation: (10, ∞)

31) 2x - 5 ≥ -11

+5 +5

2x ≥ -6

÷ 2 ÷ 2

x ≥ -3

Graph: · ---------→

-3

Interval Notation: [-3, ∞)

32) 8 - 3x > 20

-8 -8

-3x > 12

÷ -3 ↓ ÷ -3

x < -4

Graph: ←---------o

-4

Interval Notation: (-∞, -4)

33) 4x - 11 < 7x + 4

-7x -7x

-3x - 11 < 4

+ 11 +11

-3x < 15

÷ -3 ↓ ÷ -3

x > -5

Graph: o---------→

-5

Interval Notation: (-5, ∞)

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