Answer fast please and thanks!

Answer Fast Please And Thanks!

Answers

Answer 1

Answer:

tan 30 = x / 15

General Formulas and Concepts:

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ = 30°

Opposite Leg = x

Adjacent Leg = 15

Step 2: Solve for x

Substitute in variables [tangent]:                                                                     tan 30 = x / 15

Answer 2

Answer:

3rd one

Step-by-step explanation:

Recall that

Sin = opposite over hypotenuse

Cos = adjacent over hypotenuse

Tan = opposite over adjacent

For the angle with a measure of 30 degrees we are given it's adjacent side length and need to find it's opposite side length

When dealing with opposite and adjacent we use tangent

If tan = opposite over adjacent

Then tan30 = x / 15 and the correct answer choice is the third one


Related Questions

ANSWER ASAPPP PLSSS. ILL MARK BRAINLIEST TOO



A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days:


f(n) = 10(1.02)n


Part A: When the scientist concluded his study, the height of the plant was approximately 11.04 cm. What is a reasonable domain to plot the growth function? (4 points)


Part B: What does the y-intercept of the graph of the function f(n) represent? (2 points)


Part C: What is the average rate of change of the function f(n) from n = 1 to n = 5, and what does it represent? (4 points)

Answers

Answer:

Step-by-step explanation:

11.04 = 10(1.02)^n

1.104 = 1.02^n

ln 1.104 = ln 1.02^n

ln 1.104 = n ln 1.02

n = ln 1.104/ ln 1.02

n = 4.99630409516

4.99 can be rounded to 5.

So a reasonable domain would be 0 ≤ x < 5

PART B)

f(0) = 10(1.02)^0

f(0) = 10(1)

f(0) = 10

The y-intercept represents the height of the plant when they began the experiment.

f(1) = 10(1.02)^1

f(1) = 10(1.02)

f(1) = 10.2

(1, 10.2)

f(5) = 10(1.02)^5

f(5) = 10(1.1040808)

f(5) = 11.040808

f(1)=10(1.02)^1

f(1)=10.2

Average rate= (fn2-fn1)/(n2-n1)

                     =11.04-10.2/(5-1)

                    =0.22

the average rate of change of the function f(n) from n = 1 to n = 5 is 0.22.  

Answer:

Part A

The domain should be 0 ≤n≤5

Part B

f(n) = 10(1.02)^n

The function is in the form y =a b^x  where a is the y intercept

The y intercept is 10.  This is the value when n =0 days.

Part C

The average rate of growth over the 4 days is .21 cm per day

Step-by-step explanation:

f(n) = 10(1.02)^n

Part A

Let f(n) = 11.04

11.04 = 10 * 1.02 ^n

Divide each side by 10

11.04/10 = 1.02^n

1.104 = 1.02^n

Taking the log of each side

log 1.104 = log 1.02^n

We know log a^b = b log a

log 1.104 = n log 1.02

log 1.104 / log 1.02 = n

4.99630=n

Rounding n to 5

The domain should be 0 ≤n≤5

Part B

f(n) = 10(1.02)^n

The function is in the form y =a b^x  where a is the y intercept

The y intercept is 10.  This is the value when n =0 days.

Part C

To find the average rate of change

f(5) - f(1)

-----------

5-1

f(5) = 11.04  

f(1) = 10 *1.02 =10.2

11.04 - 10.2

-----------

5-1

.84

-----

4

.21 cm per day

The average rate of growth over the 4 days is .21 cm per day

The list price on slacks is $22, and the list price on jumpers is $37. If Petit’s Clothing Store orders 30 pairs of slacks and 40 jumpers at a discount rate of 11%, what is the trade discount on the purchase?

Answers

Answer:

The trade discount is

$235.4

Step-by-step explanation:

Given data

Slacks= $22

Jumpers= $37

Number of orders for Slacks= 30

Number of orders for Jumpers= 40

Total cost

22*30=$660

37*40=$1480

=$2140

11% discount can be computed as

=11/100*2140

=$235.4

The amount of increase from the cost to the selling price is called the?​

Answers

Answer:

profit

hope it is helpful to you

Step-by-step explanation:

Markup is the percentage amount by which the cost of a product is increased to arrive at the selling price.

What is the value of x in the triangle?
3/2
X
help please<3

Answers

Answer:

x = 3

Step-by-step explanation:

Assuming the acute angle are 45degrees

Hypotenuse = 3√2

Opposite = x

According to SOH CAH TOA

Sin 45 = opposite//hypotenuse

Sin 45 = x/3√2

1/√2 = x/3√2

Cross multiply

√2x = 3√2

x = 3

Hence the value of x is 3

How many vertices does a triangular prism have?
4 5 6 9

Answers

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Vertices are the vertex points. there are 4 vertices at the bottom and 2 vertices at the top which makes 6.

Hope this helps

HELP!! Emma made punch with
1
4
How many gallons of ginger ale does she need to add to make a total of 4 gallons of punch?
Part A
Which diagram can Emma use to help find the number of gallons of ginger ale she needs?
O
B.
A.
4 gal
g
g
9
g
1
2
7
8
3
4
g
O
D.
g
g

Answers

Part A

Answer: Choice B (upper right corner)

Explanation: Simply add the fractions mentioned, plus the g term, and that leads to a total of 4 gallons overall.

=====================

Part B

Answer: Choice A. 7/8 of a gallon (upper left corner)

Explanation:

The mixed number 1 & 1/2 converts to the improper fraction 3/2

Adding the fractions gets us to

(3/2) + (7/8) + (3/4)

(12/8) + (7/8) + (6/8)

(12+7+6)/8

25/8

So far, 25/8 of a gallon is accounted for. Add on the g to get (25/8)+g

Set this equal to the 4 gallons we want and solve for g

(25/8)+g = 4

g = 4 - (25/8)

g = (32/8) - (25/8)

g = (32-25)/8

g = 7/8

She needs 7/8 of a gallon of ginger ale

20 POINT MATH PROBLEM HELP

Answers

Answer:

x=50

Step-by-step explanation:

EFI=HFG (diagonals bisect angles)

125=3x-25

125+25=3x

150=3x

150/3=3x/3

50=x

Eric wants to buy a new hat
which costs $17. He made
$5 by raking leaves and
$8 by washing cars.
How much more money does he need?

Answers

Answer:

the answer is 4

Step-by-step explanation:

you subtract 13 from 17 =4

Can someone answer with steps and explanation? Thanks.

Answers

Answer:[tex]\color{yellow}{}[/tex]

∆ABC

∆DEF

∆ABC

<C

<D

<X

BE>

CF>

AD>

34>

x9×>

A=3.7

15-9x 1/2

I’ll give Brainiest

Answers

Answer:

-9x/2 + 15/2

Step-by-step explanation:

(15-9x)* 1/2

15(1/2)-9x 1/2

15/2 -9x *1/2

15/2-9x/2

-9x/2 + 15/2

Answer:

21/2 ( SEE IMAGE BELOW)

Step-by-step explanation:

Calculate the product

15- 9/2

Calculate the Differnce

21/2

so the answer is 21/2

There are 12 squares and 9 circles . What is the simplest ratio of circles to total shapes?

Answers

:) sorry i put the wrong answer before bc i thought i knew it but it was the wrong one and i dont know how to delete the answer sorrryyyyyyyyyyyyyyyy

PLEASEEEEEEEEEE HELPPPPPP PLSEASEEEE IM BEGGING SOMEONE PLEASEEEEEEEEEEEEEEEEEEEEEEEEE PLEASEEEEEE PLEASEEEEE​

Answers

Answer:

30 degree

Step-by-step explanation:

x + x + 60 + 60 = 180 degree (being sum of interior angles of a triangle )

2x  120 = 180

2x = 180 - 120

x = 60/2

x = 30 degree

Answer:

I'm not quite sure but there is 180 degrees in a triangle and they give us two 60 degrees which add up to 120. So, I'm assuming x = 60 or either 30 degrees if we're solving for both the x's at the top.

I'm really sorry if this is wrong.

which figure shows the radius of circle O?

Answers

Answer:

D

Step-by-step explanation:

The radius of a circle refers to a segment connecting the center of the circle to the circumference of the circle. This can be seen in selection D), as a segment connects the center of the circle (O) to the circumference or outer edge of the circle.

In the population of young children eligible to participate in a study of whether or not their calcium intake is adequate, 52% are 5 to 10 years of age and 48% are 11 to 13 years of age. For those who are 5 to 10 years of age, 18% have inadequate calcium intake. For those who are 11 to 13 years of age, 57% have inadequate calcium intake.

Required:
a. Use letters to define the events of interest in this exercise.
b. Convert the percents given to probabilities of the events you have defined.

Answers

Answer:

(a) A = 5 to 10 years old

B = 11 to 13 years old

C = adequate calcium intake

I = inadequate calcium intake.

(b) P(A) = 0.52, P(B) = 0.48, P(I|A) = 0.18, P(I|B) = 0.57.

Step-by-step explanation:

Complete question

Please find the attached image

(a) A = 5 to 10 years old

B = 11 to 13 years old

C = adequate calcium intake

I = inadequate calcium intake.

b) P(A) = 0.52, P(B) = 0.48, P(I|A) = 0.18, P(I|B) = 0.57.

4. A certain bacteria doubles every day. If there are 810 bacteria on day one, how long will it take the bacteria to grow to 206550?

Answers

Answer:

255 days

Step-by-step explanation:

810 ÷ 206550 = 255

What is the difference between equation and function?
A. All of the options

B. An equation tells us in a clear term the nature of relationship between one variable and the other variable(s), but a function may not be explicit enough

C. An equation and a function is that, for an equation each of the values of independent variable should give a corresponding value of a dependent variable , that is not compulsory tor a function.

D. All equations are functions but not all functions are equations

Answers

Answer:

A is the answer........

Find the selling price of a $32 item after a 50% markup.
The selling price is $

Answers

Answer:

The seelijg price is $48.

Step-by-step explanation:

Markup is the amount a store adds to its cost of an item to come up with the selling price.

store cost + markup = selling price

If the markup on an item is 50%, then the store adds 50% of its cost to its cost to arrive at the selling price.

$32 + 50% of $32 =

= $32 + 0.5 * $32

= $32 + $16

= $48

Answer:

50% of 32 is 16 so it it 16$

Find the area of the figure below (Do Not put the units in your answer)

Answers

Answer:

54

Step-by-step explanation:

Area of rhombus= (12×9) ÷2

1. The curved surface area of a cylinder of height 21cm is
660cm", find its radius. please help me .....
I will give brainliest. ​

Answers

Answer:

21 times 660 and then you will get the answer

Mark Brainliest please

Answer: 5 cm

Step-by-step explanation:

Curved Surface area of a cylinder formula :-

2.pie*r*h (where r is the radius)
Height = 21 cm

Curved Surface area of the cylinder = 660 cm2

So, 2* pie* r* h = 660 (Here I will assume pie to be 22/7)

And 2* 22/7 * 21* r = 660

And 132 * r = 660
Therefore, r = 660/132 = 5cnn

Therefore radius of the cylinder = 5 cm

Complete the function, count_bases(s). It takes as input a DNA sequence as a string, s. It should compute the number of occurrences of each base (i.e., 'A', 'C', 'G', and 'T') in s. It should then return these counts in a dictionary whose keys are the bases.

Answers

Answer:

The function is as follows:

def count_bases(DNA_str):

   retDNA = {}

   for i in DNA_str:

       if i in retDNA:

           retDNA[i]+=1

       else:

           retDNA[i] = 1

   return retDNA

Step-by-step explanation:

This defines the function

def count_bases(DNA_str):

This initializes a dictionary

   retDNA = {}

This iterates through the dictionary

   for i in DNA_str:

If an item exists in the dictionary

       if i in retDNA:

The count is updated by 1

           retDNA[i]+=1

Otherwise

       else:

The count is set to 1

           retDNA[i] = 1

This returns the DAN

   return retDNA

The volume of a cone with a diameter of 9 and a height of 120

Answers

Answer: 15268.1403 unit^3 (unit: cm,m,mm)

Step-by-step explanation:

volume of a cone= 1/2*pi*r^2*h

r= radius (unit: cm,m,mm)

h= perpendicular height (unit: cm,m,mm)

volume= 1/2*pi* (9)^2* 120 = 15268.1403 unit^3

Caleb types 100 words in 5 minsutes . What is the unit rate

Answers

Answer:

The unit rate is 20.

Step-by-step explanation:

Divide 100 (words) by 5 (minutes) to get 20 words every minute.

Write the equation of the line in Point-Slope Form given the information below. Slope =−1/5 Y-Intercept =−3 Point-Slope Form:

Answers

Answer:

[tex]y - 0= \frac{ - 1}{5}( x + 15)[/tex]

The measure of ∠1 =

a. 110
b. 62.5
c. 55

Answers

Answer:

option C

Step-by-step explanation:

Answer
D

Explanation

5/8 + 3/4 / -2/3- 5/6.

Answers

Answer:

-5/16 or -0.3125

Step-by-step explanation:

Answer:

-11/12

Step-by-step explanation:

Fyi you can use the app photo math you just take a pic of the problem and it gives you the answer and explains the steps and it is free.

The function f(x) = { x + 1 is used to complete this Which statements are true of the given function? Check all that apply. table. f(x) 012) --2 -1 1 Of(0) = } f(1) = -1 0 کی ادN Of(2)= 1 1 2 Of(4) = ? 2 2 Na​

Answers

Answer:

Options (1) and (5)

Step-by-step explanation:

Expression that defines the function is,

[tex]f(x)=\frac{1}{2}x+\frac{3}{2}[/tex]

Option 1

[tex]f(-\frac{1}{2})=\frac{1}{2}(-\frac{1}{2})+\frac{3}{2}[/tex]

          [tex]=-\frac{1}{4}+\frac{3}{2}[/tex]

          [tex]=-\frac{1}{4}+1+\frac{1}{2}[/tex]

          [tex]=1+\frac{1}{4}[/tex]

          [tex]=1\frac{1}{4}[/tex]

So, [tex]f(-\frac{1}{2} )=-2[/tex] is false.

Option 2

f(0) = [tex]\frac{1}{2}(0)+\frac{3}{2}[/tex]

     = [tex]\frac{3}{2}[/tex]

True.

Option 3

f(1) = [tex]\frac{1}{2}(1)+\frac{3}{2}[/tex]

    = [tex]\frac{3+1}{2}[/tex]

    = 2

Therefore, f(1) = -1 is false.

Option 4

[tex]f(2)=\frac{1}{2}(2)+\frac{3}{2}[/tex]

       [tex]=1+1+\frac{1}{2}[/tex]

       [tex]=2\frac{1}{2}[/tex]

Therefore, f(2) = 1 is false.

Option 5

f(4) [tex]=\frac{1}{2}(4)+\frac{3}{2}[/tex]

     [tex]=2+\frac{3}{2}[/tex]

     [tex]=\frac{4+3}{2}[/tex]

     [tex]=\frac{7}{2}[/tex]

True.

Options (1) and (5) are the correct options.

5+9+9 divided by 3= ?

Answers

It’s 7.7 because you round it the the nearest ten which is 6 turns into a 7 by adding one

given the function f(x) = 2x^2 - 6x +4. calculate the following values

Answers

Answer:

x^1 = 1, x^2 =2

Step-by-step explanation:

its hard to explain but there's the answer

Can anyone help me with this question!

Answers

9514 1404 393

Answer:

  D.  (x² -2x -3) +(-x² +4x +2)

Step-by-step explanation:

The tiles on the first row model (x² -2x -3).

The tiles on the second row model (-x² +4x +2).

If the difference is being modeled, it will show as ...

  (x² -2x -3) -(-x² +4x +2) = (x -2x -3) +(x² -4x -2) . . . . . matches none

If the sum is being modeled, it will show as ...

  (x² -2x -3) +(-x² +4x +2) . . . . . matches D

_____

Additional comment

As is often the case, you can select the correct answer without even any understanding of the question. You can do that because the correct answer is the only one that is a true statement. All of the other answer choices are incorrectly "simplified."

1. Find the length of X (in the picture) plssss I need help.​

Answers

Step-by-step explanation:

[tex] \frac{5}{4} = \frac{x}{6} \\ 4x = 30 \\ x = 7.5[/tex]

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