Q4 - Exam prep: Missing values
Audrey measures all 7 pencils in her pencil case and writes the first 6 lengths down.
11.8 cm, 12.9 cm, 13 cm, 13.2 cm, 14 cm, 13.5 cm
Audrey calculates the mean length of all 7 pencils to be 11.7 cm.
Find the length of the missing pencil.
cm
[2]

Answers

Answer 1

Answer:

3.99 or 4

Step-by-step explanation:

The sum of the six known measurements is 78.4

3.99+78.4=82.39

Divide 82.39 by seven to get the average and it equals 11.77


Related Questions

elimination method
x-5=-y
3x-10=2y​

Answers

Answer:

(4,1)

Step-by-step explanation:

Multiply the first equation by -3

(x-5=-y)*-3 = -3x+15=3y

Then combine like terms with the new equation and the second equation

(-3x+15=3y) + (3x-10=2y) = 5=5y

Divide 5 by both sides

1=y

Plug in 1 for y in an equation. Doesn’t matter which one and solve

x-5=-(1)

Distribute the negative sign to the 1

x-5=-1

Add 5 to both sides

x=4


X-5= -y
-X+5=y
-4+5=y
1=y

3X-10=2(-2+5)
3X-10= -2X+10
3X+2X=10+10
5x=20
X=4

Re-write the expression in the rational exponent form.

Answers

Answer: If you meant:  [tex]\sqrt{x5}[/tex]

Then, let's change the square t :o read: [tex]\sqrt[x]{1/2}[/tex] Now, we can just multiply the two powers, and your answer is[tex]x\frac{5}{2}[/tex]Hope this helps have a awesome day/night❤️✨

20 Points!!! Math Question

Answers

Here is how to do the question,

The Remainder Theorem starts with an unnamed polynomial p(x), where "p(x)" just means "some polynomial p whose variable is x". ... If you get a remainder, you do the multiplication and then add the remainder back in. For instance, since 13 ÷ 5 = 2 R 3, then 13 = 5 × 2 + 3. This process works the same way with polynomials.

Hope that helps!!!!

Answer:

Remainder Theorem starts with an unnamed polynomial p(x), where p(x) just means "some polynomial p whose variable is x". ... If you get a remainder, you do the multiplication and then add the remainder back in, For instance, since 13 ÷ 5 = 2 R 3, then 13 = 5 × 2 + 3. This process works the same way with polynomials

which represents the solution to this equation?
[tex] \sqrt{x =} 121[/tex]

Answers

Answer:

14641

Step-by-step explanation:

[tex]\sqrt{x} =121\\x = 14641[/tex]

Find the sum of the interior angles of a regular 14-gon.

Answers

9514 1404 393

Answer:

  2160°

Step-by-step explanation:

The sum of interior angles of a convex n-gon is ...

  angle sum = 180(n -2)°

When n=14, the angle sum is ...

  angle sum = 180(14 -2)° = 2160°

х^2x+x(x^x) when x ,=2​

Answers

Answer:

X= 81

your welcome :)

Step-by-step explanation:

Simplify the expression (2 + 3i) + (3 – 5i).
o
A. 5- 2i
B. 5 + 2i
C. 5i + 15
D. 13
E. 3

Answers

Answer: A

Step-by-step explanation:

Treat the real and imaginary parts separately, then combine. Because it is addition,  not subtraction, distributing the sign will not make a difference. Remove the parenthesis and group like terms together. Then simplify and put in standard form for imaginary numbers (real first, then imaginary).

2+3i+3-5i

2+3+3i-5i

5+ (-2i)

5-2i

need help with questions 15 and 16 please

Answers

Answer:

#15: y = -5x -4

#16: y = 2/5x -4

Step-by-step explanation:

Lets start with #15:

Slope-Intercept Form is y = mx + b, where m is the slope and b is the y-intercept.

First we can locate the y-intercept, or where the line passes through the y-axis.

The y-intercept is -4.

Substitute in the Slope-Intercept Form Equation:

y = mx -4

Pick another point and substitute its x and y values in this equation.

I chose (-1,1) and substituted as 1 = m(-1) -4

Isolate m:

1 + 4 = -m - 4 + 4

5 = -m

m = -5

The Equation in Slope Intercept Form is y = -5x -4

Let's do #16.

Slope-Intercept Form is y = mx + b, where m is the slope and b is the y-intercept.

First we can locate the y-intercept, or where the line passes through the y-axis.

The y-intercept is -4.

Substitute in the Slope-Intercept Form Equation:

y = mx - 4

Pick another point and substitute its x and y values in this equation.

I used Fractional Points as Whole ones were not seen.

I chose (5/2,-3) and substituted as -3 = m(5/2) - 4

Isolate m:

-3 + 4 = 5m/2 - 4 + 4

1= 5m/2

m=2/5

The Equation in Slope Intercept Form is y = 2/5x - 4

Hope I helped, Brainliest would be appreciated :)

Have a fantastic day!

           -Aadi x

8th grade math pls help and show work i’ll give brainliest

Answers

Answer:

B) -8

Step-by-step explanation:

Slope is rise/run, or the difference in y over the difference in x, so to solve this:

Take the y value of one of the points and subtract it from the other, and divide it by the same thing with the x values

[tex]\frac{9-1}{6-7} =\frac{8}{-1} =-8[/tex]

which is it???????????

Answers

Answer:

no solution:) have a great day!

No solution.............

What is the measure of the missing angle

Answers

Answer:

41°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

let x be the missing angle, then sum the angles and equate to 180°, that is

87° + 52° + x = 180°

139° + x = 180° ( subtract 139° from both sides )

x = 41°

If 1432x-3 = 143x+1, then...

Answers

Answer: x= 4/1289 not sure if this was what you were looking for.

Step-by-step explanation:

Step 1: Subtract 143x from both sides.

1432x−3−143x=143x+1−143x

1289x−3=1

Step 2: Add 3 to both sides.

1289x−3+3=1+3

1289x=4

Step 3: Divide both sides by 1289.

1289x/1289 = 4/1289

x= 4/1289

Hiiiooo!! Could someone please help me out with this❤️❤️❤️

Answers

Answer:

8

Step-by-step explanation:

3 divided by 4.8 = 0.625

5 divided by 0.625 = 8

Answer: I am not completely sure, but I think it is 8.6

The volume of a gas was measured as
its temperature was increased from 10°K
to 15°K at intervals of 1°K. The volumes
were 1.5, 2.2, 3.38, 5.1, and 7.6 cm.
Would a linear or exponential function
better approximate the data described?
Explain why.

Answers

Snsndndsnddnddnndjdd

please help!!!!! thank you

Answers

Answer:

b

Step-by-step explanation:

Alistair and Jason both deposited $500 into their bank accounts. Alistair earned 2.5% simple interest per year. Jason earned 4.5% simple interest per year. How much more did Jason receive in interest than Alistair after 4 years?

Answers

Answer:

$40

Step-by-step explanation:

The difference in interest amount is:

$500*4*(4.5 - 2.5)/100 = $40

Jason received $40 more than Alistair

n-6=2n-n

pls help solve :)

Answers

Answer:eorder the terms:

-6 + n = 2n + -1n

Combine like terms: 2n + -1n = 1n

-6 + n = 1n

Solving

-6 + n = 1n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-1n' to each side of the equation.

-6 + n + -1n = 1n + -1n

Combine like terms: n + -1n = 0

-6 + 0 = 1n + -1n

-6 = 1n + -1n

Combine like terms: 1n + -1n = 0

-6 = 0

Add '6' to each side of the equation.

-6 + 6 = 0 + 6

Combine like terms: -6 + 6 = 0

0 = 0 + 6

Combine like terms: 0 + 6 = 6

0 = 6

Simplifying

0 = 6

Combine like terms: 0 + -6 = -6

-6 = 6 + -6

Combine like terms: 6 + -6 = 0

-6 = 0

Step-by-step explanation:

Answer:

-6 = 0n

Step-by-step explanation:

n - 6 = 2n - n

n - 6 = n

-n        -n

-6 = 0n

I think you might have left something out but this is the answer for the equation you posted. Please let me know if there are more exponents or factors I am missing!

if candy bars are 6 for $2.58 , how much is one candy bar?

Answers

Answer:

divide it to get your answer

Step-by-step explanation:

Answer:

0.43

Step-by-step explanation:

First, divide $2.58 by 6. It looks like this $2.58/3.

Then you end up with 0.43 cents.

Good Luck!

will give brainlesr please help im 25% blind

Which statement is true about the following pair of rectangles?

Two rectangles are shown. To the left, a larger rectangle has a lower side labeled 60 centimeters and a left side labeled 30 centimeters. To the right, a smaller rectangle has an upper side labeled 6 centimeters and a right side labeled 3 centimeters.
A. They are not similar because Start Fraction 6 over 60 End Fraction≠ Start Fraction 30 over 3 End Fraction.
B. They are not similar because Start Fraction 30 over 3 End Fraction = Start Fraction 60 over 6 End Fraction.
C. They are not similar because Start Fraction 3 over 6 End Fraction ≠ Start Fraction 30 over 60 End Fraction.
D. They are similar because Start Fraction 3 over 6 End Fraction = Start Fraction 30 over 60 End Fraction.

Answers

Answer:

Option D

Step-by-step explanation:

the height of the first rectangle ( 30 ) over the height of the other rectangle     ( 3 )  is 30/3 and equals 10

the length of the first rectangle ( 60 ) over the length of the second rectangle  ( 6 )  is 60/6 and equals 10

the ratio of the sides of both rectangles are equivalent therefore the are similar

Help me solve this problem please

Answers

It’s only a vertical angle

9 NEED HELP ASAP WILL GIVE BRAINLY

Answers

Answer:

The last statement is true

Step-by-step explanation:

B :))))))))))))!!!!!1!1!1

The local acting group has 35 members. They are carpooling in 5 vans to perform a show. They want each van to carry an equal number of people. Let p be the number of people in each van. Write a one-step multiplication equation to find the number of people in each van

Answers

Answer:

5 times x = 35 so x = 7

Step-by-step explanation:


Find the inequality represented by the graph.

Answers

Answer:

y= -1/3x+1

Step-by-step explanation:

HeIpheIp heIp hep heIp heIp heIpheIp heIp

Answers

Answer:

Area of sector ≈ 15.6π (nearest tenth)

Step-by-step explanation:

Given:

radius = 5 cm

Central angle in radians = ∅ = 5π/4

Required:

Area of the sector

Solution:

Area of sector = ½*r²*∅

Plug in the values into the formula

Area of sector = ½*5²*5π/4

= ½*25*5π/4

= 12.5*5π/4

= (12.5*5π)/4

Area of sector = 15.625π ≈ 15.6π (nearest tenth)

On the day of a child’s birth, a deposit of $25,000 is made in a trust fund that pays 8.75% interest, compounded continuously. Determine the balance in this account on the child’s 25th birthday.

Answers

9514 1404 393

Answer:

  $222,822.57

Step-by-step explanation:

The account balance is given by ...

  A = P·e^(rt)

where P is the principal invested at interest rate r for t years.

  A = $25,000×e^(0.0875·25) ≈ $222,822.57

AWARD BRAINLIEST FOR CORRECT ANSWER!!! NEED FAST PLEASE x

Answers

I’ve attached my work!
Hope it help

una fabrica necesita saber cual es el material favorito de las mujeres para su ropa. para tal fin realiza una encuesta entre algunas señoras. los resultados se representan en el digrama de barras
algodon: 5%
drill:20%
pana:15%
tela:30%
jean:45%

a. realiza la distribucion de frecuencias y el diagrama circular
b. identifica la moda e interpretala de acuerdo con la situcacion

Answers

Answer:

la moda es el jean ya que es lo que mas se repite, osea lo que prefieren

de los datos podemos deducir que se encuestaron a 115 mujeres de las cuales el 17% prefiere dril, el 4% prefiere algodon, el 13% prefiere pana, el 26% prefiere tela y por ultimo el 39% prefiere el jean

para un total de 100%Step-by-step explanation:

please help! just tell me the letter answer please :(

Answers

Answer: B. 5

Hope this helps! :)

Find the simple Interest
I=?
P=$1300
R= 5%
T=6 years
$390
$1690
O $39000



Answers

Answer:

Step-by-step explanation:

P =$ 1300

R = 5% = 0.05

T = 6 years

I = P * R *T

 = 1300 * 0.05 * 6

 = $ 390

PLS HELP:(

Find the volume of this figure.

Answers

Answer:

565.49

Step-by-step exp

i just got it from a caculator... i may not be correct lol sorry

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