Sharon completed the proof below. Which statement about Sharon’s proof is true

Answer:

V = 84.8 cubic meters

Step-by-step explanation:

V(cone) = πr²·(h÷3)

V = 3²π·(9/3)

V = 27π

V = 84.8 cubic meters

Answer:

see explanation

Step-by-step explanation:

The nth term of an arithmetic progression is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₈ = - 10 , then

a₁ + 7d = - 10 → (1)

The sum of the first n terms of an arithmetic progression is

[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]

Given

[tex]S_{20}[/tex] = - 350 , then

[tex]\frac{20}{2}[/tex] [ 2a₁ + 19d ] = - 350

10(2a₁ + 19d) = - 350

20a₁ + 190d = - 350 → (2)

Multiply (1) by - 20

- 20a₁ - 140d = 200 → (3)

add (2) and (3) term by term to eliminate a₁

0 + 50d = - 150

50d = - 150 ( divide both sides by 50 )

d = - 3

substitute d = - 3 into (1)

a₁ + 7(- 3) = - 10

a₁ - 21 = - 10 ( add 21 to both sides )

a₁ = 11

Then first term a₁ = 11 and common difference d = - 3

(b)

a₁ + (n - 1)d = - 97 , that is

11 - 3(n - 1) = - 97 ( subtract 11 from both sides )

- 3(n - 1) = - 108 ( divide both sides by - 3 )

n - 1 = 36 ( add 1 to both sides )

n = 37

That is the 37th term = - 97

The total cost is $450 + $55h.

To calculate the total cost of fixing Yonna's car, we need to consider both the cost of the parts and the labor charges.

1. Cost of parts = $450.

2. Labor charges:

The mechanic charges $55 per hour for labor. We need to know the number of hours the mechanic spends fixing the car to calculate the labor charges.

Let's assume the mechanic spends "h" hours fixing the car.

Labor charges = $55 per hour * h hours = $55h.

The total cost of fixing the car is the sum of the cost of parts and the labor charges:

Total cost = Cost of parts + Labor charges

Total cost = $450 + $55h.

The total cost depends on the number of hours the mechanic spends fixing the car ("h" hours)

The total cost is $450 + $55h.

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Answer:

85

Step-by-step explanation:

398.23 + 8.8912 = 407.1212

492.1212 - 407.1212 = 85

Answer:

y = 5

Step-by-step explanation:

All angle measures in a triangle add up to 180°.

Solving for Y:

Step 1: Combine like terms.

Step 2: Subtract 145 from both sides.

Step 3: Divide both sides by 7.

Step 4: Check if solution is correct.

Therefore, y = 5.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer:

3x^(2) - 5x - 6

Step-by-step explanation:

the answer is 3x^(2) - 5x - 6

Answer:

y= -2/3x+12

Step-by-step explanation:

Answer:

Katlyn uses more flours per cookies

Step-by-step explanation:

Katlyn's

[tex]3\frac{1}{2}[/tex] cookies ---> [tex]2\frac{1}{2}[/tex] flours

1 cookies ---> [tex]2\frac{1}{2} /[/tex] [tex]3\frac{1}{2}[/tex]

1 cookies ---> 0.71428 flours

Megan's

[tex]2\frac{11}{12}[/tex] cookies ---> [tex]1\frac{3}{4}[/tex] flours

1 cookies ---> [tex]1\frac{3}{4}[/tex] / [tex]2\frac{11}{12}[/tex]

1 cookies ---> 0.6 flours

As a result, Katlyn uses more flours per cookies.

Answer:

b) line 2: you should have added 7 to both sides

Step-by-step explanation:

Answer:To get the graph of the given parabola, we will use the equation of the parabola to check if given points in options are lying on that parabola or not. If they lie on the graph of parabola,  then they would satisfy the equation, else not. We will use vertex form of parabola to get its vertex.

Thus, by below shown calculations, we have

Option A: On a coordinate plane, a parabola opens up. It goes through (-6, 0), has a vertex at (-2, -8), and goes through (2,0)

Answer:

its the 3rd graph

Step-by-step explanation:

c

Answer:

x=9

y=15

Step-by-step explanation:

it's a parallelogram, the sides parallel are equal

Answer:

(2/3)+6

2/3 + 18/3

= 20/3

in the mixed form, it is 6 2/3.

(I'm assuming the x between 5 and 2 is a multiplication sign)

Answer:

it is a zero slope

Step-by-step explanation:

Answer:

98 girls twice that amount of boys so that should be

98times 2 =196boys in grade 1st through 3rd

i hope this helps if not then sorry

Step-by-step explanation:

Answer:

196 boys

Step-by-step explanation: its 98 times 2 because theres twice as many boys as girls

Answer:

z/3 = 3/2 so 2z = 9 z = 4.5 cuz triangles are proportional

Answer:

CR = 17

Step-by-step explanation:

Using Pythagoras Theorem:

a² + b² = c²

8² + 15² = CR²

64 + 225 = CR²

289 = CR²

CR = √289

CR = 17

Answer:

Kind Note:

This question is incomplete. You need to provide the question in order to get the best answer on brainly. In this answer, I will tell you how many solutions are in this system of equations.

Step-by-step explanation:

This question involves the use of 'system of equations'.

              4x - 11y = -5

Hence, this system of equations has infinitely many solutions.

Hoped this helped!

Answer: -4x +11y =5

4x - 11y = -5

Step-by-step explanation:

Answer:

34.10

Step-by-step explanation:

Note:

16% = .16

Important:

What was the old price of the shoes

Solution:

40.60 x .16 = 6.946 [Round:6.50]

40.60-6.50= 34.10

Hence, the old price of the shoes is $34.10

Answer:

Point-slope:

y - 1 = -2(x - 4)

Slope-intercept:

y = -2x + 9

Standard:

2x + y = 9

Step-by-step explanation:

The equation you were given is:

y = -2x + 7

This is slope-intercept form of the equation. When an eq is in this format you can see (no work!) the slope and the y-intercept (hence the name) Anyway, the number infrontof the x is the slope. Parallel lines have the same slope. So your new equation will also have a slope of -2.

We have a point on the new line, but not the y-intercept, so we need another form of the equation. Point-slope equation is something we can use.

y - y = m(x - x)

in this fill-in-the-blank formula, we put the slope in place of the m. And, given any point on the line (x,y) We fill in the SECOND x and the SECOND y. The FIRST x and y just stay variables.

So, we know the slope is -2.

And a point on the line is (4,1).

Fill in:

y - 1 = -2(x - 4)

This is the least- amount-of-work-for-us, equation of the line.

Sometimes the teacher/book/class/program asks for a specific version of the equation.

y - 1 = -2(x - 4)

Distribute the -2.

y - 1 = -2x + 8

Add 1 to both sides.

y = -2x + 9

This is slope-intercept form of the equation.

Or we can change it to Standard form.

y = -2x + 9

Add 2x to both sides.

2x + y = 9

Answer:

Around 25

Step-by-step explanation:

452 candies/18 children

= 25.11111111

Meaning there are around 25 left

Answer:

452 divided by 18 equals

25 with a remainder of 2

Step-by-step explanation:

Answer:

Below.

Step-by-step explanation:

[tex]\large \underline{\textsf {Distributive Property:}}\ \normalsize \tex a (b + c + d) = ab + ac + ad}\ \textsf{and } \tex a (b + c) = ab + ac[/tex]

[tex]\boldsymbol{\sf A.\ 9\left(4x - 3y -\dfrac{2}{3}\right)}[/tex]

[tex]\boxed{\begin{minipage}{4.55 cm}\implies \sf 9(4x) + 9(-3y) + 9\left(-\dfrac{2}{3}\right)\\\\\implies \sf 36x -27y - \dfrac{18}{3}\\\\\implies \boxed{\sf 36x -27y -6}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\boldsymbol{\sf B.\ -2(-6x + 3y - 1)}[/tex]

[tex]\boxed{\begin{minipage}{4.8 cm}\implies \sf -2(-6x) - 2(3y) - 2(-1)\\\\\implies \boxed{\sf 12x -27y + 2}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\boldsymbol{\sf C.\ \dfrac{1}{5}(20y-4x-13)}[/tex]

[tex]\boxed{\begin{minipage}{4.68 cm}\implies \sf \dfrac{1}{5}(20y) + \dfrac{1}{5}(-4x) + \dfrac{1}{5}(-13)\\\\\implies \sf \dfrac{20y}{5}-\dfrac{4x}{5}-\dfrac{13}{5}\\\\\implies \boxed{\sf -\dfrac{4}{5}x+4y-\dfrac{13}{5}}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\boldsymbol{\sf D.\ 8\left(-x-\dfrac{1}{2}\right)}[/tex]

[tex]\boxed{\begin{minipage}{3.28 cm}\implies \sf 8(-x) + 8\left(-\dfrac{1}{2}\right)\\\\\implies \sf -8x - \dfrac{8}{2}\\\\\implies \boxed{\sf 8x - 4}\end{minipage}}[/tex]

..................................................................................................................................................

[tex]\boldsymbol{\sf E.\ -8\left(-x-\dfrac{3}{4}y+\dfrac{7}{2}\right)}[/tex]

[tex]\boxed{\begin{minipage}{5.4 cm}\implies \sf -8(-x)-8\left(-\dfrac{3}{4}y\right)-8\left(\dfrac{7}{2}\right)\\\\\implies \sf 8x + \dfrac{24}{4}y - \dfrac{56}{2}\\\\\implies \boxed{\sf 8x + 6y - 28}\end{minipage}}[/tex]

Answer:

example: find lcm of 48 and 32

48: 48, 96, 144, 192

32: 32,64,96,128,160,192

Step-by-step explanation:

list multiples and then find the smallest number that is both their multiple. That is Lcm

Step-by-step explanation:

the lowest common multiple of 2 numbers.

I recommend prime factorization.

starting with 2 you divide each number by lowest possible prime factor as many times as possible without remainder.

then you go to the next higher prime number and keep dividing without remainder.

and the next and the next until you reach 1 as the remaining number.

and then you combine (multiply) the longest streaks per prime number.

the result : the LCM

example :

98 and 36

98

2 49 (no more 2 division, 3 does not work, 5 does not work, but 7)

7 7

7 1

36

2 18

2 9

3 3

3 1

so, the longest streaks per prime number are

2×2 = 4

3×3 = 9

7×7 = 49

and the LCM = 4×9×49 = 1764

Answer:

a.Indirect

b.direct

c.idnirect

d.direct

e.indirect

Step-by-step explanation:

if you wnt to know which is direct or indirect you need to see if something increases the other will decrease this will be indirect

and if both increase or decrease then this is direct

like for example how many men working and and how much time it would take it is indirect cause the more the men the less the time , the less the men the more the time it takes to finish

Answer:

Answer is written below:

Step-by-step explanation:

A : Indirect variation

B : Direct variation

C : Indirect variation

D : Direct variation

E : Indirect variation

Answer: CE=17, BD= 16, BE=29

Step-by-step explanation:

So, the equation would be 2x-3-2+2x-4-2=3x-1

Then, x=10

Answer:

0.24 + 0.32 =0.56

Step-by-step explanation:

Is this what you needed?

Answer:

0.2 and 0.35

Step-by-step explanation:

Total sum is 0.55

Answer:

c = 3

Step-by-step explanation:

Hope it helps and have a great night! =D

~shining stars~

The value of 'c' in the 32^{2c} = 8^{c+7}[tex]32^{2c} = 8^{c+7}[/tex] is, 3.

Some common rules of exponents are

xᵃ×xᵇ = xᵃ⁺ᵇ.

xᵃ/xᵇ = xᵃ⁻ᵇ.

Addition and subtraction of exponents is only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.

Given, An expression [tex]32^{2c} = 8^{c+7}[/tex].

Now, To equate the exponents we have to change the bases to the same value.

Therefore, [tex]32^{2c} = 8^{c+7}[/tex] ⇒ [tex](2^5)^{2c} = (2^3)^{c+7}[/tex].

5(2c) = 3(c + 7).

10c = 3c + 21.

7c = 21.

c = 3.

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Answer:

c,Describe and design a completely randomized design for Nicole's experiment