Is the product of 2x - 5 and 3x2 + 5x - 7 equal to the product of 5x – 2 and 3x2 + 5x - 7? Explain your answer.

Answers

Answer 1

Answer:

see I need help for chemistry pls anyone here helps me I must submit before 10:30


Related Questions

Identify the terms, variables, coefficients and constants in each expression -4a-7b+5+c & 7-5h-2-k & 5-4x-8y & 9k+7-k+4 & -5a-7+5d+h & 7m-5-n-8k
Thank you!

Answers

Problem 1

Answers:Terms = -4a, -7b, 5, cVariables = a, b, cCoefficients = -4, -7, 1Constants = 5

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Explanation:

Each term is separated by a plus sign. If we had something like -4a-7b, then rewrite it as -4a+(-7b). This works because subtraction is really adding a negative. Example: 2-3 = 2+(-3)

So the original expression becomes -4a+(-7b)+5+c and we see there are four terms here.

The terms with the variables are -4a, -7b and c. The variables are simply letters so we just say a,b,c are the variables. The coefficients are the numbers to the left of the variables. For the term c, it is really 1c, so the coefficient is 1.

The constant is the term without a variable multiplied with it. So that would be the 5. As the name suggest, the constant term does not change based on whatever the variables are.

=========================================================

Problem 2

Answers:terms = 7, -5h, -2, -kvariables = h,kcoefficients = -5, -1constants = 7, -2

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

Explanation:

We'll follow the same idea as problem 1.

Rewrite 7-5h-2-k as 7+(-5h)+(-2)+(-k) and we see there are four terms.

The term -k is the same as -1k, so the coefficient is -1

The variables this time are h,k as those are the two letters that show up.

The constants are 7 and -2 because no variables are attached to them.

=========================================================

I'll let you do the rest. If you're still stuck, then please let me know

plz help i will mark you branlyest also plz answer both questions

Answers

Answer:

D(1, -2)

E(3, -4)

Carol walks a circular path with a radius of 280 yards at the local park. How far does she walk? round your answer to the nearest tenth.

Answers

The answer is 1748.4 yards. You multiply 280 by 2 which is 560, and then multiply that by pi, which gives you 1748.4 :)

Answer:

1508.6

Step-by-step explanation:

circumference=2πr

=2×22/7×240

=1508.57

=1508.6

Martin decided to buy 2 bags of grapes weighing 5 and two-thirds pounds each, instead of the 3 bags weighing 4 and one-fifth pounds each, because the bigger bags were on sale. Did he end up with more grapes or less grapes by buying the bigger bags?

Answers

Answer:

Martin ended up buying less grapes by buying the bigger bag.

Step-by-step explanation:

5 ⅔ + 5 ⅔ = 10 4/6

4 ⅕ + 4 ⅕ + 4 ⅕ = 12 3/15

Answer:D

Step-by-step explanation: hope this helps

absolute value of -3 |xy|

Answers

Answer:

|-3| = 3

Step-by-step explanation:

S=Ut + 1\2 at^2

U=10 a=-2 t=1\2

Work out the value of S

Hope u guys get this!

Answers

S=10(1/2)+ 1/2(-2)(0.5)^2
=5+ (-1)(0.25)
=5-0.25
=4.75

Hope this can help.

What are two consecutive integers of 184

Answers

43, 45, 47, and 49 are a few I hope this helps

You are choosing between two different cell phone plans. The first plan charges a rate of 22 cents per minute. The second plan charges a monthly fee of $34.95 plus 8 cents per minute. Let t be the number of minutes you talk and C1 and C2 be the costs (in dollars) of the first and second plans. Give an equation for each in terms of t, and then find the number of talk minutes that would produce the same cost for both plans (Round your answer to one decimal place). C1= C2= If you talk for minutes the two plans will have the same cost.

Answers

Answer:

249.64285714 minutes

Step-by-step explanation:

Let

The number of minutes you talk = t

C1 = Cost in dollars of the first plan

C2 = Cost in dollars of the second plan

First plan

The first plan charges a rate of 22 cents per minute

Converting cents to dollars

100 cents = 1 dollars

22 cents =

22/100 cents

=$ 0.22

C1 = $0.22 × t

C1 = 0.22t

Second Plan

The second plan charges a monthly fee of $34.95 plus 8 cents per minute.

Converting cents to dollars

100 cents = 1 dollars

8 cents =

8/100 cents

=$ 0.08

C2 = $34.95 + 0.08t

Find the number of talk minutes that would produce the same cost for both plans

We would Equate C1 to C2

C1 = C2

0.22t = $34.95 + 0.08t

Collect like terms

0.22t - 0.08t = $34.95

= 0.14t = $34.95

Divide both sides by 0.14

= t = $34.95/0.14

t = 249.64285714

Therefore, the number of talk minutes that would produce the same cost for both plans is 249.64285714 minutes.

please answer quickly!

Answers

Answer:

tanx

Step-by-step explanation:

tan=TOA

opp/adj

x=p/r

what is 3 3/4 as a decimal ​

Answers

Answer:

3.75

Step-by-step explanation:

Answer: 3.75

Step-by-step explanation: 3/4=.75 so add 3 and you get 3.73

A fitness center offers boxing classes for $15 per class and sells a set of boxing gloves for
$15.95. Josh paid a total of $135.95 to the fitness center for boxing classes and a set of gloves.
How many boxing classes did Josh attend?

Answers

Answer:

8

Step-by-step explanation:

total paid: $135.95

cost of gloves: $15.95

amount for classes: $135.95 - $15.95 = $120

cost of each class: $15

number of classes: $120/$15 = 8

Answer: 8 classes

Central Park in New York City is shaped like a rectangle. On a map of the park
in the coordinate plane, three of the vertices are located at (-1.25, -0.25),
(-1.25, 0.25), and (1.25, 0.25). Distances on the map are in miles. What is the
perimeter of Central Park? Show your work,

Answers

Answer:

6

Step-by-step explanation:

Given that the coordinate plane, three of the vertices of the rectangle are located at (-1.25, -0.25),

(-1.25, 0.25), and (1.25, 0.25)

The length L of the shape will be:

L = 0.25 - ( - 0.25 )

L = 0.25 + 0.25

L = 0.5

The width of the shape will be:

W = 1.25 - ( - 1.25)

W = 1.25 + 1.25

W = 2.5

Perimeter P = 2L + 2W

Substitute the Length and the width into the formula

P = 2(0.5) + 2(2.5)

P = 1 + 5

P = 6 metres

Therefore, the perimeter of the shape is 6 metres

2/m-5=3/m+5 solve for m​

Answers

Answer:

-1/10

Step-by-step explanation:

Answer: m=  −1 /10

Step-by-step explanation:

2 m −5= 3 m +5  

2 m +−5= 3 m +5

Multiply all terms by m and cancel:

2+−5m=3+5m

−5m+2=5m+3(Simplify both sides of the equation)

−5m+2−5m=5m+3−5m(Subtract 5m from both sides)

−10m+2=3

−10m+2−2=3−2(Subtract 2 from both sides)

−10m=1

−10m

−10

=

1  −10

(Divide both sides by -10)

m=  −1  /10

Check answers. (Plug them in to make sure they work.)

m=

−1 /10

(Works in original equation)

m=  −1 /10

The size of a playground is 160 feet by 360 feet. A model is created that measures 4 inches by 9 inches. Is it a rate, ratio only or a proportion?

Answers

Answer:

The model is made in a 1:40 ratio

Step-by-step explanation:

How many times is 4 multiplied to be equal to 160?

4(x) = 160

X = 160 / 4

X = 40

The proportion, rate, and ratio are almost the same.

They represent the correspondence between the parts and the whole since they all express a binary relationship between the quantities, that is, objects, people, tablespoons.

If the ratio is 1: 2 it could be read that for every 1 there are 2.

For example 1: 2 cups; For every cup of something there are 2 cups of something else.

In this case, 1:40; For every inch of the model, there are 40 feet in the playground.

2/3 of a number -11. Please help

Answers

Answer:

(2/3)x = -11

x = -33/2

Step-by-step explanation:

2/3 of a number is -11.

Let the unknown number be x.

2/3 of x is -11.

(2/3)x = -11

Multiply both sides by 3/2.

(3/2)(2/3)x = (3/2)(-11/1)

x = -33/2

Which of the following statements is true
regarding the solutions to the quadratic
equation 5x2 + 6x + 2 = 0?

Answers

Answer:

  c. This quadratic equation has two complex solutions.

Step-by-step explanation:

Of the choices ...

  a. This quadratic equation has exactly one real solution.

  b. This quadratic equation has two real solutions.

  c. This quadratic equation has two complex solutions.

  d. This quadratic equation has no solutions.

The one that is true is c: two complex solutions.

__

The discriminant of quadratic ax^2 +bx +c = 0 is ...

  d = b^2 -4ac

For this quadratic, the value is 6^2 -4·5·2 = -4.

When the discriminant is positive, there are two distinct real solutions.

When the discriminant is zero, there is one real solution.

When the discriminant is negative, there are two complex solutions. The discriminant of this quadratic is negative, so there are two complex solutions.

Solve the equation 3+
х
* = 10.
X=

Answers

if the equation is 3+x=10, x is equal to 7

Answer:

x=7

Step-by-step explanation:

subtracting 3 from both sides, you get x=7.

In the answer space below, provide one of the two positive integers whose product is 196 and whose sum is a minimum.

Answers

Answer:

14

Step-by-step explanation:

The value of two positive integers are 14 and 14.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

Product of two positive integers are 196.

Sum of two positive integers are minimum.

Now,

Let two positive integers are x and y.

Since, Product of two positive integers are 196.

So, we can formulate;

xy = 196    ... (i)

And, Sum of two positive integers are minimum.

So, we can formulate;

s = x + y

From equation (i);

y = 196/x

Substitute in above equation, we get;

s = x + y

s = x + 196/x

Differentiate with respect to x as;

d/dx (s) = d/dx(x + 196/x)

ds/dx = 1 - 196/x² ... (ii)

Substitute ds/dx = 0, we get;

ds/dx = 1 - 196/x² = 0

1 - 196/x² = 0

1 = 196/x²

x² = 196

x = ± 14

Differentiate equation (ii) again;

d²s/dx² = 0 - (-2 × 196)/x³

d²s/dx² = 392/x³

At point x = 14,

d²s/dx² = 392/8³ > 0

Hence, At x = 14, the value is minimum.

So, we get;

xy = 196

at x = 14

y = 196/14

y = 14

Hence, The value of two positive integers are 14 and 14.

Learn more about the product visit:

https://brainly.com/question/13778771

#SPJ2

Which percent is equivalent to 2.5?
2.5%
25%
250%
2,500%
Please hurry

Answers

Answer:  C) 250%

Move the decimal point 2 spots to the right to go from 2.5 to 250%

Another example would be that 0.76 converts to 76%

Answer:

c

Step-by-step explanation:

For f(x)=4x+1 and g(x) x2-5, find (g/f)

Answers

Answer:

(f+g) (x)=x^2+4x-4

Step-by-step explanation:

add them together

f(x)+g(x)

14x+1+x^2-5

x^2+4x-4

(f+g)(x)+x^2+4x-4

Answer: (x^2 - 5)/(4x + 1)

Explanation:

(g/f)(x) = (x^2 - 5)/(4x + 1)

2 to the power of -3 simplified

Answers

Answer:

= 1/8 or 0.125

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

A negative x a negative makes a positive

What is the slope between the points (3,1) and (4,-1)

Answers

Answer:

Step-by-step explanation:

(-1 - 1)/(4 - 3)= -2/1= -2

y - 1 = -2(x - 3)

y - 1 = -2x + 6

y = -2x + 7

Answer:

-2

Step-by-step explanation:

-1 -1

4-3  

-2/1= -2

2(x + 4) = 4x + 3 - 2x + 5

Answers

I got zero
2x + 8 = 2x + 8
2x-2x= 0
8-8=0

Help me I need the answer ASAP ! Aundrea painted the background of a square mural on the wall using 138ft^2 of paint .which measurement is closest to the side length of this mural in feet ?
A.69 ft
B.12 ft
C.139 ft
D.35 ft

Answers

Hey there! I'm happy to help!

Since this mural is a square, all the sides are the same. This means that you square on of the sides to get the area (multiply it by itself). If we have the area and want to find a side, we just go backwards and use something called the square root!

If we plug this into our calculators...

√138≈11.74734

We see that is closest to B. 12 ft.

You could also figure this out without a calculator. 138 is very close to 144, which is 12². All the other answer options are way too big.

Have a wonderful day! :D

1/9 + 1/9 = * Your answer This is a required question​

Answers

Answer:

2/9 obvi

Step-by-step explanation:

2^2+4^2+6^2......50^2​

Answers

Answer:

422,500

Step-by-step explanation:

Since ^2 is comman

(2+4+6+8+10+12+14+16+18+20+22+24+26+28+30+32+34+36+38+40+42+44+46+48+50) ^2

= 650^2

=422,500

Hope this is correct plzz mark brainliest

what is a two variable linear equation

Answers

Answer: Linear equations in two variables. If a, b, and r are real numbers (and if a and b are not both equal to 0) then ax+by = r is called a linear equation in two variables. (The “two variables” are the x and the y.) The numbers a and b are called the coefficients of the equation ax+by = r.

Step-by-step explanation:

Answer:

see below

Step-by-step explanation:

It's an equation that has two variables

that's to say it has x and y (generally)

it is linear when you graph it, it forms a line and that only happens when the mayor exponent is one

so

[tex](something_1)x^{1}+(something_2)y^{1} =(something_3)[/tex]

notice all the something are completely different

or you could find it as

[tex]y=mx+b[/tex]

where m is the slope

and b some number

so that's it

Math problem giving brainlist and points!!

Answers

Answer:

It would be B

Step-by-step explanation:

divide 0.12 by 0.04. That means we want to find out how many times 0.04, or four-hundredths, goes into 0.12, or twelve-hundredths.

Answers

Answer:

3

Step-by-step explanation:

0.12 ÷ 0.04

if we want to calculate without calculator ,

multiply both nenominator and denominator by 100;

Then,

(0.12×100)÷(0.04 ×100)

= 12÷4

= 3

Round to the nearest hundred thousand. 636,665

Answers

Answer:

600,000

Step-by-step explanation:

I think that it will be 600,000 because the 3 is below 5 which you can not round anything that is below 5.This what I look at when i Round and it may or may not be helpful to other people:

5 or more raise the score

4 or less let it rest

That is what I learned.

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