Mathematics Middle School

Someone help please!!!!!

Answers

Answer 1

the answer is (B)…………

Related Questions

1. Rút gọn biểu thức A(x) = (x+2)(x+3)(x+5) - (x-1)(x+4)(x+7). Từ đó tìm tất cả các giá trị x sao cho A(x) = 0.

Answers

x = -29/7

Step-by-step explanation:

A(x) = (x^2 + 5x + 6)(x + 5) - (x^2 + 3x - 4)(x + 7)

= (x^3 + 10x^2 + 31x + 30) - (x^3 + 10x^2 + 17x - 28) = 14x + 58

A(x) = 0 => 14x + 58 =0 => x = -58/14 = -29/7

Answer:

778744

Step-by-step explanation:

387t98878989890

What is the Tenth COMMON FACTOR of 6 and 9? (DO NOT respond with the LCM of 6 and 9)

Answers

GMC Answer : 3 because of there

no 3 yhe othr it erng

A bag of marbles contains 12 blue marbles, 5 red marbles, and 13 green marbles. if one is selected at random, what is the probability that the selected marble is blue?

A. 0
B. 2/5
C. 13/30
D. 5/6
E. 1

Answers

Answer:

2/5

Step-by-step explanation:

Total marbles=12+13+5=30

P(that the selected marble is blue) = 12/30 = 6/15 = 2/5

I think it’s B sorry if im wrong

A dice is rolled twice and the result the result of each roll is added together. What is the probability that the sum is equaled to 2?

Answers

Answer:

1/36

Step-by-step explanation:

to get a sum of 2 you must roll a 1 both times. The probability of this is (1/6)*(1/6)=1/36

Answer:

1/36

Step-by-step explanation:

There are 36 total possibility, and 2 is one of them

Please help thx and I will mark you as brainliest!

Answers

First one : y=1/3x+4.32

Second one: y=3x-2

Explanation: try Desmos. its a magical machine

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (5, 6) and (x₂, y₂ ) = (- 1, 4)

m = [tex]\frac{4-6}{-1-5}[/tex] = [tex]\frac{-2}{-6}[/tex] = [tex]\frac{1}{3}[/tex] , then

y = [tex]\frac{1}{3}[/tex] x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (- 1, 4 ) , then

4 = - [tex]\frac{1}{3}[/tex] + c ⇒ c = [tex]\frac{12}{3}[/tex] + [tex]\frac{1}{3}[/tex] = [tex]\frac{13}{3}[/tex]

y = [tex]\frac{1}{3}[/tex] x + [tex]\frac{13}{3}[/tex] ← equation of line

-----------------------------------------------------------------------

The equation of a line in point- slope form is

y - b = m(x - a)

m is the slope and (a, b) a point on the line

Here m = 3 and (a, b) = (- 2, 0 ) , then

y - 0 = 3(x - (- 2) ) , that is

y = 3(x + 2)

y = 3x + 6 ← equation of line

Rectangle A and Rectangle B are similar. Rectangle A has side lengths of 16 and 8. Rectangle B has a side length of 32. What are the possible values for the length of the other side of Rectangle B? Select all that apply.

12
16
38
64

Answers

Triangle A and triangle B have a Similarity coefficient equal to 2 (32/16)

If 32 is the largest side therefore the other side is 16

If 32 is the smallest side so another side is 64

Answer : 16, 64

Answer:

16，64

Step-The side with a side length of 32 may be the long side or the short sideby-step explanation，so there are two cases：

1、the long side: 16/8=32/X，X=16

2、the short side：16/8=X/32，X=64

Please help with these two problems and give an accurate explanation. Thank you!

Answers

The domain is all of the x-values a function can have. The range is all of the y-values a function can have.

#50.

Domain: [-5, 10]

---The function starts at the x-value -5 and stops at the x-value 10.

Range: [-3, 5]

---The smallest y-value is -3 and the largest y-value is 5.

#51.

Domain: [-2, infinity)

---The function starts at the x-value -2 and has an arrow to indicate that it goes on forever.

Range: [0, infinity)

---The smallest y-value is 0 and an arrow indicates that the functions goes up and on forever.

Hope this helps!

I don’t know sry ksjdnjd huh

solve the following problem as a percent equation: 36 is 80% of what number?

Answers

Answer:

Step-by-step explanation:

80%= 4/5

36 = 4/5 * ?

Take 4/5 on the other side and flip it

36 * 5/4 = ?

45=?

36 is 80 percent of 45

Help with this two pls

Answers

Answer:

I'm not sure about 20 but here's 21.

Part A is 274.622.

Part B is 282.018

Step-by-step explanation:

Part A show work:

278.320

- 3.698

________

274.622

Part B show work:

278.320

+ 3.698

________

282.018

20. Seens to 1. 21. A. 21. B

An adult ticket is twice the cost of a child's ticket. Angela paid $ 28 for two adult tickets and three children's tickets. Which of the
following equations could be used to find the price of a child's ticket?
(A) x + 2x = 28
(B) 3x + 2(2x) = 28
(C)3(2x) + 2x = 28
(D) 3x + 2x = 28

Answers

B = 3 x + 2 ( 2x ) = 28

The following equations could be used to find the price of a child's ticket, 3x + 2(2x) = 28, the correct option is B.

What is an Equation?

An equation is a mathematical statement formed when two expressions are equated using an equal sign.

The equations are useful in determination of unknown parameters.

The equations are of various types, such as Trigonometric equations, quadratic equations.

The system of equations are used to solve complex problems.

Let the cost of child ticket is $x

An adult ticket is twice the cost of a child's ticket.

Let the cost of adult ticket is $2x

The total amount Angela paid is $28 for two adult tickets and three children's tickets.

The equation that will be formed is

4x + 3x = 28

It can also be written as 3x + 2(2x) = 28.

To know more about Equation

https://brainly.com/question/10413253

#SPJ2

A coordinate grid with 4 lines. Line A passes through (0, 5) and (4, 3.75). Line B passes through (3.75, 0) and (0, negative 5). Line C passes through (0, negative 5) and (negative 3.75, 0). Line D passes through (negative 3.75, 0) and (0, 5).
Which line represents the linear equation
–3y = 15 – 4x?

The equation –3y = 15 – 4x rewritten in slope-intercept form is

Answers

Answer:

Step-by-step explanation:

im pretty sure

Answer:

Step-by-step explanation:

Choose 3 of the following to write using a single, positive exponent: 2^-7, 3^-23, 11^-8, 4^-9, 2^-32, 8^-3

Answers

Answer: um

Step-by-step explanation:

given m=-2 and y intercept (0,-2) find the equation of the line in standard form.

Answers

Answer:

the answer is -2x-y=2

Step-by-step explanation:

Ax+By=C

y=mx+b

y=2x-2

-2x-y=2

Answer:

y=−2x−2

Step-by-step explanation:

In triangle JKL, JKL is a right angle, KM and is an altitude. JL=25 and JM=5, find KM

Answers

Answer:

Step-by-step explanation:

What does this mean "Go from -2
What is this -2

Answers

Answer:Go from -2 means starting from -2 you should start or begin. -2 is an integer before 0. It also means negative 2.

if you right a timeline you will under stand it as -2 to 2 ( whole number ) the

La base de un rectangulo es doble que su altura Cuales son sus dimensiones si el perímetro mide 108 cm

Answers

Answer:

el ancho es

pulgadas y la longitud es

pulgadas.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Graph the solution of the inequality 2x − (3 − x) > x + 1 on the number line. sorry i don't have a graph but quick pls help'll give brainliest!!!

Answers

Answer:

see below

Step-by-step explanation:

2x − (3 − x) > x + 1

Distribute the minus sign

2x-3+x > x+1

Combine like terms

3x-3 >x+1

Subtract x from each side

3x-3-x>x+1-x

2x-3 >1

Add 3 to each side

2x-3+3>1+3

2x>4

Divide by 2

2x/2 >4/2

x>2

Open circle at 2 , line going to the right

Answer:7

Step-by-step explanation:

Greshak Corp. reports the following revenues:

2015 $10,000,000
2016 $11,250,000
2017 $12,500,000
2018 $13,500,000
2019 $12,750,000
2020 $12,900,000

What was Greshak’s compound annual growth rate (CAGR) in revenues over the 6-year period 2015 through 2020?

Answers

Answer

around 10%

Step-by-step explanation:

around 10 percent

perioh pooh

hope it right

Please help me! I will give brainly!

A law in Washington, D.C., restricts a new building's height to no more than 20 feet taller than the width of the street it faces. You design a building with stories that are each 15 feet tall for a street that is 88 2/3 feet wide. What is the greatest number of stories your building can have?

_______ Stories

How much shorter is your building than the height restriction?

________Feet

Answers

It can be up to 20 feet taller so add 20

To the width:

88 2/3 + 20 = 108 2/3

Divide total height by the height of one story:

108 2/3 / 15 = 7.24

The building can have 7 stories.

b. 7 x 15 = 105 total feet

108 2/3 -105 = 3 2/3 feet below the restrictions

‏Which of the following statements is generally true about change in the workplace ? a ) Most people accept change easily . b ) Smart companies can avoid change altogether . c ) Change in the workplace happens fairly infrequently d ) Individuals can learn to manage the change in their lives .

Help please!!! I only have 10 minutes!!

Answers

I think 0.7 would be it

[tex] - 0.7[/tex]

Step-by-step explanation:

[tex] \frac{1}{2} ( - 1.4m + 0.4) [/tex]

[tex] = - 0.7m + 0.2[/tex]

The animal shelter needs to split 6 1/2 pounds of dog food equally among the 13 dogs in the facility. How much dog food will each dog receive?

Answers

Answer:

1/2 pound for each dog.

Step-by-step explanation:

Don't get confused. There are only 2 numbers which will give 2 different answers: 2 and 1/2. Which one is correct?

You want the units to be pounds per dog or pounds/ number of dogs.

The numerator is 6.5

The denominator is dogs (13)

Food per dog = 6.5 / 13 = 1/2

1/2 for each doggo 2021

Hey! Can anybody help? I’m stuck on this question

Answers

I believe that it is C

it’s (C)………………………………

Rearrange the equation so xxx is the independent variable.
-5x-4y=-8
y=

Answers

Answer:

[tex]\displaystyle x = \frac{4y - 8}{-5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle -5x - 4y = -8[/tex]

Step 2: Solve for x

[Addition Property of Equality] Add 4y on both sides: [tex]\displaystyle -5x = 4y - 8[/tex][Division Property of Equality] Divide -5 on both sides: [tex]\displaystyle x = \frac{4y - 8}{-5}[/tex]

Answer:

4y-8/ -5

Step-by-step explanation:

Which fractions are equivalent to 40%? Check all that apply.
StartFraction 8 Over 100 EndFraction
Two-fifths
StartFraction 8 Over 20 EndFraction
StartFraction 4 Over 10 EndFraction
StartFraction 16 Over 40 EndFraction
btw: its a multiple choice question

Answers

8/20, 4/10 this is the answer also 16/40

is what I did correct

Answers

Answer:

Yes.

Step-by-step explanation:

Yes, it is correct. It can also be 73 = v + 29

Find the arc length of the partial circle.
Either enter an exact answer in terms of π or use 3.14 π and enter your answer as a decimal.

Answers

Answer:

1/2 pi

Step-by-step explanation:

This is 1/4 of a circle

Find the circumference and multiply by 1/4

1/4 C

1/4 ( 2*pi*r) where r is the radius

The radius is 1

1/2 pi*1

1/2 pi

Answer:

Step-by-step explanation:

A full circle has a circumference of 2*pi * r

r = 1

so Full Circle = 2 * PI

1/4 Circle = 2*pi / 4 = 1/2 pi

The length of the arc length = 1/2 pi

Just in case you prefer the more numerical answer, 1/2 * 3.14 = 1.57

A DVD is on sale for $1.05 off. This is a 15% discount from the original price. Use an equation to find the original price. A. $16.05, B. $15.75, C. $10.50, D. $7.00

Answers

He got summer school

D $7
0.15x=1.05

$16.05 • 0.15=2.4075
$15.75 • 0.15 =2.3625
$10.50 • 0.15 = 1.575
$7.00 • 0.15 = 1.05

There is a blueprint for a house that is a scale drawing for the entire house. One part of the house has a triangular base. The drawing of the width of the triangle is 4cm and the length is 6cm. If the width of

Answers

what’s the width? i think the question was cut off

PLZ HELPPPP!!! WILL GIVE BRAINLIEST! TYSM!!

Find the arc length of the semicircle.
Either enter an exact answer in terms of π (pi) or use 3.14 and enter your answer as a decimal.

Answers

Answer:

6 pi

Step-by-step explanation:

The arc length is 1/2 of the circumference

C = pi * d

So the arc length is 1/2 C

arc length= 1/2 ( pi *d)

= 1/2 pi(12)

= 6 pi

6pi
shshdhnddbdndbdbdb

100 POINTS
My neighborhood is full of one-way streets. To drive from my house to the grocery store, I have to go 1 block south, then 1 block east, then 5 blocks north, then 2 blocks east. Each block is 1/16 of a mile. How much shorter would my trip be if I could fly like a bird (that is, travel in a straight line)?
I FOUND THE distance for non bird which is 9/16. I wanna apply the pythagoreum theorum and draw a straight line to make it a triangle so I can do so but don't know where to place it

Answers

Answer:

1/4

Step-by-step explanation:

Let's suppose that your house is located at (0,0)

1 block south from here puts you at (0, -1/16)

1 block east from here now puts you at (1/16, -1/16)

5 blocks north from here puts you at (1/16, 4/16)

2 blocks east from here puts you at (3/16, 4/16)

You have traveled (1/16) ( 1 + 1 + 5 + 2) = 9 / 16 of a mile

The "straightline" distance between (0, 0) and (3/16, 4/16) =

sqrt [ (3/16^2 + (4/16)^2 ] = sqrt [ 25 / 256] = 5/16 of a mile

Your trip would be { 9/16 - 5/16 } equals 4/16 and simplifies equals 1/4 of a mile.

Goodluck and I hope this helped!

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