look at the pic, which one is equivalent and which one is not or both

Answer:

12

Step-by-step explanation:

diameter is just radius times 2

hope this helps!

please mark me brainliest! thanks!

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.

Answer:

1/4

Step-by-step explanation:

because when u add the demical u get the answer b

Answer:3:3:1

Step-by-step explanation:divide by 3

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: 80 cm

Step-by-step explanation:

2.4 divided by 3 is 0.8

To convert m to cm multiply by 100

100 x 0.8 = 80

Answer:

Each piece of ribbon will be 80 cm or 0.8m

Step-by-step explanation:

Hope this helps!

Answer:

14km

Step-by-step explanation:

answer:

yes, i have put too much pressure on myself when i was not able to accomplish my goal as quickly as i would have liked. some things in life don't always work out the way you want, but we have live through it. this happened to me when i kept on doing bad at a subject even when i kept practicing. it was frustrating at first, however i just kept going and now im pretty good at it.

step-by-step explanation:

Answer:

Omg yes all the time

Step-by-step explanation:

And I hate myself for it I need to be more patient towards myself

Answer:

m=-1/4

Step-by-step explanation:

(0,5)(4,4)

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:

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:

4

Step-by-step explanation:

10/100=0.1

1% = 0.1

0.1*40= 4

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.

7) 65%

8) 5%

9) 19 pencils

10) 30 questions

7)20 - 7 = 13

13/20= 0.65

0.65= 65%

8) 40 - 38 = 2

2/40= 0.05

0.05 = 5%

9) 0.38 times 50 = 19

10) i just did 30 divided by 27 and got 90%

Answer: The probability of getting a prime number exactly five times = 0.1908

Step-by-step explanation:

Prime numbers from 1 to 30 are 2,3,5,7,11, 13, 17, 19, 23, 29.

The probability of getting a prime number p= [tex]\dfrac{10}{30}=\dfrac13[/tex]

Number of trials n = 12

Binomial probability formula:

[tex]P(X=x) = \ ^nC_x p^x(1-p)^{n-x}[/tex]

, where x= number of successes

n= number of trials.

x = Number of successes

p= probability of getting one success.

The probability of getting a prime number exactly five times:

[tex]P(X=5)=\ ^{12}C_5(\frac13)^5(1-\frac13)^{7}[/tex]

[tex]=\frac{12!}{5!7!}(\frac1{243})(\frac{128}{2187})\\\\=0.1908[/tex]

Hence, the probability of getting a prime number exactly five times = 0.1908

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]

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:

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 :)

Answer:

angle 1= 30 degrees

angle 2= 120 degrees

angle 3= 30 degrees

Step-by-step explanation:

A triangle is equal to 180 degrees so first step is to subtract 120 to get the total of your two missing angles

180-120=60

and since your two missing angles are equal to each other you can divide by 2 and you get your two missing angles

60 / 2 = 30

Answer: $7.56

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:

5x^4

Step-by-step explanation:

Just subtract the exponent values because coefficient is same

Answer:

5x x (x-1) x (x + 1) x (x^2 + 1)

Step-by-step explanation:

5x x (x^4 - 1)

5x x (x^2-1) x (x^2+1)

Answer:

5x x (x-1) x (x + 1) x (x^2 + 1)

Answer:

two distinct real solutions

Answer:

the first one is b)

Step-by-step explanation:

the first one is B. bc x= 6 or x= -6

answer:

substituion property or transitive property

step-by-step explanation:

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

Answer:

I think its 15

Step-by-step explanation:

25 + 25 = 50

So 15 + 15 = 30

Answer:

iliterallydontknowfigureitoutyourself

Answer:

x = 19.25

Step-by-step explanation:

The diagonal of a rhombus bisects opposite angles and opposite angles are congruent.  

So, 2x - 1 is the measure of the third angle of the triangle

Therefore, 2x - 1 + 2x - 1 + 4x + 28 = 180 since the sum of the measures of the angles of a triangle is 180

8x + 26 = 180

8x = 154

x = 19.25

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: