Trigonometry question foundation

Answer:

Step-by-step explanation:

y=3(4)²+1

 =48+1

 =49

Answer:

The output is 49

Step-by-step explanation:

If the input is 4, then x = 4.

Replace x with 4 and you have the equation:

3(4)^2 + 1 = 49

Because Y is the output, and Y = 49, the output is 49

Answer:

(11+4)/3*square root of 64=40

Step-by-step explanation:

11+4=15

15/3=5

the square root of 64 is 8

5*8=40.

Answer:

3.2

Step-by-step explanation:

Answer:  28.8 divided by 9 is 3.2

Step-by-step explanation: PLEASE  MARK ME BRAINLIST!

answer:

substituion property or transitive property

step-by-step explanation:

Answer:

2

Step-by-step explanation:

When it comes to like terms, they have to end with the same symbol A.K.A variables, exponents, and numbers.

1 + 9 + 3u

There are two terms, constants and variables, constant being 1 and 9 while variable being 3u.

Step-by-step explanation:

Given

y = 2x - 3

if x = - 4 Then

y = 2 * ( -4) - 3

= -8 - 3

= - 11

Hope it will help :)

The value of y when the value of x is equal to the negative number 4 is negative 11 (-11).

Unknown variables are used to find the unknown values of the problem using the algebraic expressions.

The expression for the variable x and y are given as,

[tex]y=2x-3[/tex]

The x value for the above expression is given as,

[tex]x=-4[/tex]

The value of y for the above value of x has to be found out.  Put the value of x in the given expression to find the value of variable y as,

[tex]y=2(-4)-3[/tex]

Solve it further as,

[tex]y=2(-4)-3\\y=-8-3\\y=-11[/tex]

Hence, the value of y when the value of x is equal to the negative number 4 is negative 11 (-11).

Learn more about the unknown variable here;

https://brainly.com/question/1235185

Answer:

option B

Step-by-step explanation:

option B is the correct answer of this question.

plz mark my answer as brainlist plzzzz if you get it right .

Answer:

I'm going with option A  

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. The probability that your mail is delivered before 2 pm is 0.9, so the probability that the mail is delivered at 2 pm or after 2 pm (so not before 2 pm) is 1-0.9=0.1.

Remark: 0.9=9/10=90/100=90%, and 0.1 is 10%

2. Probability of the mail being delivered before 2 pm for 2 consecutive days is  

3. take a look at the picture attached, the tree diagram is another method we could use.

Answer:

.81

Step-by-step explanation:

I have acellus too and this is the correct answer. I can't explain it very well. Sorry!

Answer:

Hey!

Try this!

   Take the original price.

   Divide the original price by 5.

   Alternatively, divide the original price by 100 and multiply it by 20.

   Subtract this new number from the original one.

   The number you calculated is the discounted value.

   Enjoy your savings!

Answer:

Step-by-step explanation:

100-21 gives you 79 so 68.00- .79, however, that gives you 53.72

Answer:

Step-by-step explanation:

6*4*3434=24*3434=82416

Answer:

The slope of the line is [tex]\frac{5}{2}[/tex]

Step-by-step explanation:

Hi there!

We are given the following points: (-2, 4) and (0, 9)

We want to find the slope (m) of these 2 lines, and the problem asks us to use the slope formula

The slope formula is given as [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points

We have everything we need to calculate the slope, but let's label the values of the points to avoid any confusion.

[tex]x_1=-2\\y_1=4\\x_2=0\\y_2=9[/tex]

Now substitute these values into the formula to find the slope.

m=[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m=[tex]\frac{9-4}{0--2}[/tex]

Simplify.

m=[tex]\frac{9-4}{0+2}[/tex]

Add (or subtract) the numbers together

m=[tex]\frac{5}{2}[/tex]

The slope of the line is [tex]\frac{5}{2}[/tex]

Hope this helps!  

See more on finding the slope from 2 points here: https://brainly.com/question/26738734

Answer:3:3:1

Step-by-step explanation:divide by 3

Given:

Figure of similar triangles.

To find:

The value of x and the measure of NR.

Solution:

In triangle RST and RMN,

[tex]\angle SRT\cong \angle MRN[/tex]              (Vertically opposite angles)

[tex]\angle RST\cong \angle RMN[/tex]              (Alternate interior angles)

[tex]\Delta RST\sim \Delta RMN[/tex]                 (By AA property of similarity)

We know that, corresponding sides of similar triangles are proportional.

[tex]\dfrac{RS}{RM}=\dfrac{RT}{RN}[/tex]

[tex]\dfrac{40}{8}=\dfrac{60}{2x-2}[/tex]

[tex]5=\dfrac{60}{2x-2}[/tex]

[tex]2x-2=\dfrac{60}{5}[/tex]

On further simplification, we get

[tex]2x=12+2[/tex]

[tex]x=\dfrac{14}{2}[/tex]

[tex]x=7[/tex]

The value of x is 7.

Now,

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

[tex]NR=2(7)-2[/tex]

[tex]NR=14-2[/tex]

[tex]NR=12[/tex]

Therefore, the value of x is 7 and the measure of NR is 12 units.

Answer:

[tex]\displaystyle E=e^{5x}[/tex]

Step-by-step explanation:

Exponentials

Properties of exponentials:

[tex]x^ax^b=x^{a+b}[/tex]

[tex]\frac{x^a}{x^b}=x^{a-b}[/tex]

Simplify:

[tex]\displaystyle E=\frac{e^{-2}\cdot e^{2x+3}}{e^{1-3x}}[/tex]

Multiplying in the numerator:

[tex]\displaystyle E=\frac{e^{-2+2x+3}}{e^{1-3x}}=\frac{e^{+2x+1}}{e^{1-3x}}[/tex]

Applying the quotient:

[tex]\displaystyle E=e^{2x+1-(1-3x)}[/tex]

Operating:

[tex]\displaystyle E=e^{2x+1-1+3x}[/tex]

Simplifying:

[tex]\boxed{\displaystyle E=e^{5x}}[/tex]

Answer:

14km

Step-by-step explanation:

Answer:

250, 1250

Step-by-step explanation:

Since 10/2 = 50/ 10 = 5, the common ratio = 5    So the next term in the sequence is found by multiplying the last term by 5.  

Therefore, 50 x 5 = 250 and 250 x 5 = 1250. So, the next two terms in your sequence are 250 and 1250

Answer:

96 Miles

Step-by-step explanation:

Answer:

For, 250 messages the plans cost the same. Under 250 messages, plan A is cheaper.

Step-by-step explanation:

Giving the following information:

Plan A:

Fixed costs= $40

Variable cost= $0.2

Plan B:

Fixed cost= $40

I assume that we have to determine the indifference point, where the two plans cost the same.

First, we need to establish the total cost equations

Plan A= 20 + 0.2x

Plan B= 70

x= number of messages

Now, we equal both formulas and isolate x:

20 + 0.2x = 70

0.2x= 50

x= 250

For, 250 messages the plans cost the same. Under 250 messages, plan A is cheaper.

Answer:

I think its 15

Step-by-step explanation:

25 + 25 = 50

So 15 + 15 = 30

Answer:

[tex]E(x) = 4.56[/tex] --- Mean

[tex]s^2 = 1.0944[/tex] --- Variance

[tex]s = 1.0461[/tex] --- Standard Deviation

Step-by-step explanation:

See Comment for missing details

Given

[tex]p = 0.76[/tex] --- proportion

[tex]n = 6[/tex] -- sample

Solving (a): The mean; E(x)

This is calculated as:

[tex]E(x) = n * p[/tex]

Substitute values for n and p

[tex]E(x) = 6 * 0.76[/tex]

[tex]E(x) = 4.56[/tex]

Solving (b): The variance; s^2

This is calculated as:

[tex]s^2 = n*p*(1-p)[/tex]

Substitute values for n and p

[tex]s^2 = 6 * 0.76 * (1-0.76)[/tex]

[tex]s^2 = 6 * 0.76 * 0.24[/tex]

[tex]s^2 = 1.0944[/tex]

Solving (c): The standard deviation; s

This is calculated as:

[tex]s = \sqrt{s^2[/tex]

Substitute value for s^2

[tex]s = \sqrt{1.0944[/tex]

[tex]s = 1.0461[/tex]

Answer:

20

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

15/3 x 4/1 = 60/3  

60/3 simplified is 20/1 or 20! Hope this helps!

Answer:

x=51/5

Step-by-step explanation:

Add 61 on both sides

You'll have 5x=51

So now 51/5 is your answer.

Answer:

16/5

Step-by-step explanation:

|5x - 6| = -10

5x -6 = 10

5x = 10+6 = 16

x = 16/5

Step-by-step explanation:

step 1. pick one of the points: (-2, 5)

step 2. calculate the slope of the points (-2, 5) and (1, -1). m = (-1 - 5)/(1 - (-2)) = -6/3 = -2

step 3. plug them in: y - y1 = m(x - x1) = y - 5 = -2(x - (-2)).

Answer:

1/4

Step-by-step explanation:

because when u add the demical u get the answer b

Answer:

0 - 1

Step-by-step explanation:

U can do by simple division method to get the answer

Answer:

50°

Step-by-step explanation:

As we know that the opposite angles of parallelogram are equal so

< ADC = < ABC

< ABC = 38° +12°

< ABC = 50°

Hope it will help :)

9514 1404 393

Answer:

  34.2 cm

Step-by-step explanation:

Hopefully, you understand that the length of 2 beads is 2 times the length of 1 bead. Extending this to 18 beads, we hope you understand that the length of 18 beads is 18 times the length of 1 bead.

The length of the 18-bead bracelet will be ...

  18×1.9 cm = 34.2 cm

The length of Marlene's bracelet is 34.2 cm.

_____

Maybe you've never been given as "step by step" for the problem solving process.

Step 1: Set aside your math anxiety and turn on your brain. (The number at the top of the answer is intended to help you do that.)

Step 2: Read the problem statement, interpreting it according to your experience in the real world and your knowledge of English words and sentence structure.

Step 3: Identify what the problem statement is telling you.

Step 4: Identify what the problem statement is asking you.

Step 5: Apply your knowledge of real-world relationships and math relationships to determine how the asked-for information is related to the given information.

Step 6: Use logical reasoning, and/or math symbols to write any down any relationships (equations or inequalities or diagrams) that need further manipulation to achieve the desired answer.

Step 7: Solve those equations, logic problems, geometry diagrams, whatever, using the math relationships you have learned.

Step 8: Relate the solution(s) you found to the question that is being asked. (This may require additional steps.) Note that this is what is being done in the bold statement at the end of the answer above.

Answer:

A

Step-by-step explanation:

m = (-7 - 6 ) / (-5 - 1)

m = -13 / -6

m = 13/6

Answer: I think it might be B. Sorry if incorrect

Step-by-step explanation: