how long must the sides of an equilateral triangle be in order for the perimeter to be greater than 45m?

3x²+x-5=0

a = 3, b = 1, c= -5

-> ∆ ( delta ) = b²-4ac = 61 > 0

-> x1 =( -b+√∆ )÷ 2a =...

x2 = (-b-√∆)÷2a =...

p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.

Answer:

offer an entertaining and enjoyable shopping experience.

Step-by-step explanation:

Hedonistic is a word in English language used to describe the pursuit of pleasure by an individual or group of people as the main activity of life. A hedonistic individual is typically devoted to seeking and having fun and pleasurable times in life.

Hence, a store that provides hedonic benefits will offer an entertaining and enjoyable shopping experience such as playing video games, swimming, viewing centers, playing music or karaoke, etc. The main purpose of hedonic benefits is to induce or enhance customer impulsiveness, as well as influencing their decision to stay longer in the shopping environment or store.

Answer:

Option F

Step-by-step explanation:

Let the number be n.

Sum of a number and 5 is n + 5.

Sum of a number and five divided by fifteen is

( n + 5 ) / 15

Answer:

15

Step-by-step explanation:

First, calculate one side of your triangle like this:

[tex]A = h\frac{b}{2} \\\\A = 6 \frac{2.5}{2} \\\\A= 7.5[/tex]

You have 2 halves however, so add them to get your total area.

Answer:

Mixed Number: 7 And 1/10

Improper Fraction: 71/10

Please give me Brainliest if I'm right ! :)

Answer:

Mixed Number: 7 1/10

Improper Fraction: 71/10

Step-by-step explanation:

A Mixed Number is a Number with a fraction as part of it so 7 is a whole number, so this is the "number" part. .1 isnt a whole number, so you find out what the simplified form of .1 is, and you get 1/10. Put them together and you get 7 1/10. An improper fraction is where the number becomes only a fraction, no whole numbers allowed! you can find out 1 = 10/10 so this means 7 = 70/10. Add the .1 (1/10) to this and you get 71/10.

Answer:

45 in

Step-by-step explanation:

Given 2 similar figures with ratio of radii = a : b , then

ratio of volumes = a³ : b³

Here ratio of volumes = 8 : 27 , then

ratio of radii = [tex]\sqrt[3]{8}[/tex] : [tex]\sqrt[3]{27}[/tex] = 2 : 3

let r be the radius of the larger sphere then by proportion

[tex]\frac{2}{30}[/tex] = [tex]\frac{3}{r}[/tex] ( cross- multiply )

2r = 90 ( divide both sides by 2 )

r = 45

The radius of the larger sphere is 45 in

Answer:

180-25=155 degrees

Answer:

option 3

Step-by-step explanation:

Answer:

its jimmy

Step-by-step explanation:

Answer:

-7

-8

Step-by-step explanation:

Factors need to add up to the b in the equation and multiply to the ac.

y = ax^2 + bx + c

Answer: 60

Step-by-step explanation:

ball =x

bat = y

x + y = 90

and

equation II is

3 x + 2 y =210

By multiplying by 3 to equation I both sides

we get equation III as

3( x + y) = 3 ( 90 )

3x + 3y =270 III

subtract II and III

we get 3x+3y=270

- 3x+2y=210

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

0+y= 60

y =60

cost of bat is y ie = 60

and cost of ball ,is

let put value of y in equation I

x+60=90

x=90-60

x=30

cost of ball is 30

Answer:

1 - C (38 cm)

2 - A (13)

3 - C (4x + 44 = 180)

Step-by-step explanation:

Answer:

45/2

Step-by-step explanation:

ashjasdhkjasdha hello there

There are two people and there are 45 minutes to shoot the ball. As both people shoot for the exact same time, you have to divide 45 by 2 to split the time into two equal halves. Thus, the answer is 45 divided by 2, or just 45/2.

Answer:

2x+h

Step-by-step explanation:

f(x+h) means that wherever there's an x in the function f(x) we plug in a x+h

we have

(x+h)²+9

Let's start with the numerator

(x+h)²+9-(x²+9)

Distribute the exponent

x²+2xh+h²+9-x²-9

Which gives us

2xh+h²

Divide the whole thing by h to give us

2x+h

Answer: C $25

HOPE THIS HELPS

Answer:

85,000

Step-by-step explanation:

425,000 x .20=85,000

Answer:

-2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

[Function] y = -2x + 8

[Coordinate] (5, __) → x = 5

Step 2: Solve for y

Answer:

Positive 3

Step-by-step explanation:

-29=9-6k-2k-14

-29=-5-8k

-24=-8k

k=3

Answer: I belive b, I could be wrong  tho.

Step-by-step explanation:

Answer:

I think that the answer is B

Answer:

B is the answer

Step-by-step explanation:

I converted each option to decimals so answer b looks like

2.25> 2.23> -2> -2.2

Answer:

1 sec = 437.5 divided by 62.5

=7

Step-by-step explanation:

7 meter per second

That's the answer

Just open it

Answer:

55 tickets for adults

Step-by-step explanation:

Start by setting up two equations. One equation will be the total amount of money spent and the other is the total amount of tickets sold. a is the # of adult tickets and c is the # of children tickets sold.

7a+4c=469

a+c=76

Now solve for c in the second equation. Then use that to substitute for c in the first equation.

c=76-a

7a+4(76-a)=469

7a+ 304-4a =469

7a+4a=165

3a=165

a=165/3

a=55

Answer:

x=40

Step-by-step explanation:

Reflections have to be equal to each other.

Therefore, the equation is going to be 3x-6=114. This is equal to 3x=114+6. This is equal to 3x=120. x=120/3. x=40. Therefore, x=40.

If this helps please mark as brainliest

Answer:

X=40   pls mark brainlist it would really help

Step-by-step explanation:

3x-6 must equal 114. So...

3x-6=114

+6      +6

3x=120

/3     /3

x=40

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

B. 3

Answer:

c

Step-by-step explanation:

the awnser is c

The triangle in option (D) follows the property of congruence triangle.

Therefore option (D) is correct.

A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.

The sum of the angles of a triangle is always 180°

In the given triangle ABC,

Two sides AB, and BC are given.

And two angle B and C are shown.

To find the triangle which is congruent to ABC,

Use Angle-side-Angle property,

According to ASA property,

One side and two angles should be equal.

The triangle in option (D) shows the ASA property.

Hence, option (D) is correct answer.

To know more about Triangle on:

https://brainly.com/question/2773823

#SPJ2

Answer: 384 fluid ounces

Step-by-step explanation:

First and foremost, when converting gallons to ounces, the conversion rate is:

1 gallon = 128 ounces

Therefore, since Trevor's mom bought 3 gallons of fruit juice, to convert it to to ounces, we have to multiply by 128. This will then be:

1 gallon = 128 ounces

3 gallons = 128 ounces × 3

= 384 fluid ounces of fruit juice.

Answer:

Step-by-step explanation:

Model the expressions

with bar models or algebra tiles to determine if the expressions are

Equivalent.

You can also write equivalent expressions using

properties of operations

and order of operations.

Answer:

Step-by-step explanation:

Blank 1

Model the expressions.

Blank 2 options.

Equivalent.

Blank 3 options.

properties of operations.

Answer:

175 AKA B

Step-by-step explanation:

40/8=5 5*35=175

Answer:

The third one counting from the top.

Step-by-step explanation:

We have the inequality:

(-1/3)*(2x + 1) < 3

The first thing we need to do is isolate x on one side of the inequality.

First we can by -3 in both sides of the inequality, and remember, because we are multiplying by a negative number, the inequality sign changes its direction:

(-3)*(-1/3)*(2x + 1) > 3*(-3)

(2x + 1) > -9

Now we can subtract 1 in both sides:

2*x + 1 - 1 > -9 - 1

2*x > -10

Now we can divide by 2 in both sides:

2*x/2 > -10/2

x > -5

Then we should see a number line such that all the points at the right of -5 are colored.

The correct option is the third one, counting from the top.

Slope = change in y over change in x

Slope = (-20 -20)/ (11-25)

Slope = -40/ -14

Slope = 20/7