30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3​

Step-by-step explanation:

Please refer to the attachment

Answer:

x = 18

Step-by-step explanation:

5x/9 = x/6 + 7

multiply both sides by 9

5x = 9x/6 + 63

multiply both sides by 6

30x = 9x + 378

subtract 9x from each side

21x = 378

divide both sides by 21

x = 18

check by substituting 18 for x:

5(18)/9 = 18/6 + 7

5(2) = 3 + 7

10 = 10

Answer:

answer is zero in the following

Answer:

5,2,1,5

Step-by-step explanation:

Input the given domain to the equation

Answer:

Step-by-step explanation:

2 is a whole number and in 2/5 5 is the whole.  so 2/5 is like saying you need 5 cups but there is already 2 there :)

Answer:

120

Step-by-step explanation:

you add em all up then you find the answer choice

Answer:

CENTROID

Step-by-step explanation:

Answer:

108

Step-by-step explanation:

3x5 = 15 he has already delivered 15 presents

123-15= 108 he has 108 left to deliver

Answer:

the total amount collected is 2,665

Step-by-step explanation:

The computation of the total amount collected is shown below:

= price × number of tickets sold × price + number of tickets sold × price + price

= 14 × 15 × 10 + 56 × 10 + 5

= 2,100 + 560 + 5

= 2,665

Hence, the total amount collected is 2,665

1.64

2.512

3.27

4.125

I'm sorry if it's wrong

Answer:

yes? what do you need help with

Step-by-step explanation:

Answer:

I believe the answer is 2

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

((100-25)/100)× 60 is the correct answer

Answer:

that would be 40 and 20 !

Step-by-step explanation:

40 + 20 = 60

and 40 = 20 + 20.

Answer:

the answer is 40+20

20+20

Answer:

yes it is

Step-by-step explanation:

a squared + b squared= c squared

8^2+15^2=17^2

64+225=289

Answer:

agree

Step-by-step explanation:

Step-by-step explanation:

The ratio and proportion is the mathematical concept that can explain the correlation between the size of a dog and the amount of food it eats. For example dogs weighing 3 to 7 kg should consume 67 to 112 grams of food per day, that is, the amount of food must be proportional to the weight of the dog.

The ratio and proportion are interconnected concepts that allow the understanding of comparison between quantities.

Answer:

neither

Step-by-step explanation:

parallel lines have the same slope and different y-intercept

perpendicular lines have the reciprocal as slopes( 2/5 and 5/2)

as these slopes have neither the answer in NEITHER

Given:

Selling price of bird feeder = 40 each

Discount percent = 7%

To find:

The final price of the bird feeder after the discount.

Solution:

We know that,

Final price = Selling price - Discount

                 = [tex]40-\dfrac{7}{100}40[/tex]

                 = [tex]40-2.8[/tex]

                 = [tex]37.2[/tex]

Therefore, the final price of the bird feeder after the discount is 37.2 each.

Answer:

Step-by-step explanation:

Answer:

the equation of yours is wrong. the equation would be y=1/3x.

Step-by-step explanation:

here's the graph. hope it helps.

Answer:

[tex]80[/tex]

Step-by-step explanation:

[tex]the \: number \: between \: (-10) \: and \: ( 70) \: \\ is \: same \: as \: (70) - ( - 10) = 70 + 10 \\ ans = 80[/tex]

Answer:

Step-by-step explanation:

Find the midpoint:

The number is 40

The question is incomplete. Here is the complete question

Ahmad and Alicia share some sweets in the ratio2:3 Ahmad gets 14 sweets how many sweets dod Alicia gets

Answer:

21

Step-by-step explanation:

The ratio of sweets shared between Ahmad and Alicia is 2:3

Ahmad gets 14 sweets

2x = 14

x= 14/2

x= 7

7× 3

= 21

Hence Alicia gets 21 sweets

Answer:

Lea el párrafo y complete con las siguientes palabras que faltan:

Hereditaria Cromatina Equitativa Cromátidas Cromosomas

ADN Genes Duplica Brazos Centrómero

Los ______________________ son los portadores de nuestros _______________. A su vez, nuestros genes son los que

transmiten la información ________________________ de padres a hijos.

Él _________ se encuentra en el núcleo de la célula, unido a proteínas, formando la _________________. Cuando la

célula se va a dividir, la cromatina se _______________ para poder distribuir la información genética de forma

_____________________ entre las dos células hijas.

Tras la duplicación, cuando la célula empieza a dividirse, los cromosomas estarán formados por dos partes idénticas

denominadas ____________________, unidas entre sí por el _______________________, que divide a cada cromátida

en dos partes denominadas ________________________.

Step-by-step explanation:

step 1. f(x) = rx + s

step 2. domain of f(x): all x

step 3. f'(x) = lim h->0 (f(x + h) - f(x))/h

step 4. f'(x) = lim h->0 (r(x + h) + s - (rx + s))/h

step 5. f'(x) = r

step 6. domain of f'(x): all x.

9514 1404 393

Answer:

  g(x) = 3x^2 -2

Step-by-step explanation:

Reflection in the y-axis replaces x with -x.

  g(x) = f(-x) = 3(-x)^2 -2

  g(x) = 3x^2 -2

_____

The given function is symmetrical about the y-axis, so its reflection is itself.

Answer:

x = -72

Step-by-step explanation:

Let the number be x.

The quotient of number and -6 is written as :

[tex]\dfrac{x}{-6}[/tex]

Now the quotient is increased by 2 i.e.

[tex]\dfrac{x}{-6}+2=14[/tex]

Now we can solve it as follows :

Subtract 14 from both sides,

[tex]\dfrac{x}{-6}+2-14=14-14\\\\\dfrac{x}{-6}-12=0\\\\\dfrac{x}{-6}=12\\\\x=-72[/tex]

So, the value of x is equal to -72.