12∙(40-39)+2

A. 18

B. 14

C. 24

D. 30

Answer:

Step-by-step explanation:

A parabolic graph with no real zeros never touches or crosses the x-axis.  

If the leading coefficient is negative, that tells us that the parabola opens down (and, in this case, that the entire graph is below the x-axis, because there are no real zeros.

If the y-intercept is odd, then the constant term, c, in ax^2 + bx + c, must be a negative, odd integer.

Suppose we say that the vertex of a particular parabola that is described by the above is (-2, -1) and that the y-intercept is -3.  (Note:  this is strictly an example.)  Then the vertex equation of this parabola is obtained from the general vertex equation of a parabola,

y = a(x - h)^2 + k.  Here h = -2 and k = -1, and so the particular parabola is

y = -a(x + 2)^2 - 1, where a is a constant and -a is negative.

In general form, this would be y = -a(x^2 + 4x + 4) - 1, or

                                                   y = -ax^2 - 4ax - 4a -1

and the constant terem (-4a -1) must be an odd negative integer

This is only one of an infinite number of possible equations for the parabola described above.

Answer:

A parabolic graph with no real zeros never touches or crosses the x-axis.  

If the leading coefficient is negative, that tells us that the parabola opens down (and, in this case, that the entire graph is below the x-axis, because there are no real zeros.

If the y-intercept is odd, then the constant term, c, in ax^2 + bx + c, must be a negative, odd integer.

Suppose we say that the vertex of a particular parabola that is described by the above is (-2, -1) and that the y-intercept is -3.  (Note:  this is strictly an example.)  Then the vertex equation of this parabola is obtained from the general vertex equation of a parabola,

y = a(x - h)^2 + k.  Here h = -2 and k = -1, and so the particular parabola is

y = -a(x + 2)^2 - 1, where a is a constant and -a is negative.

In general form, this would be y = -a(x^2 + 4x + 4) - 1, or

                                                  y = -ax^2 - 4ax - 4a -1

and the constant terem (-4a -1) must be an odd negative integer

This is only one of an infinite number of possible equations for the parabola described above.

Answer:

B?

Step-by-step explanation:

Answer:

[tex]7 \frac{1}{2} [/tex]

Step-by-step explanation:

[tex]8 \frac{3}{4} - 1 \frac{1}{4} = \frac{35}{4 } - \frac{5}{4} \\ = \frac{30}{4} \\ = 7 \frac{2}{4} \\ = 7 \frac{1}{2} [/tex]

Answer:

y= _3x+55

Step-by-step explanation:

we conqet two points
(0,55)  (12,19)

55=B                       subsiquent two points into the equation
19=a,12+55
a=-3
b=55
so we choose B

Answer:-3x=55

Step-by-step explanation:I had to do it

Answer:

See below

Step-by-step explanation:

1. 223 is q added to 158

  223 = q + 158

2. d divided by 34 is the same as d

   d / 34 = d

3. 299/b = t

4. p = 204 × p

5. 103 is equal to m added to 343

    103 = m + 343

Hope that helps! :)

(Also, can you mark me as brainliest?)

Answer:

[tex]2\frac{4}{5}[/tex]

Step-by-step explanation:

Rewriting our equation with parts separated

[tex]=9+\frac{1}{5} -6-\frac{2}{5}[/tex]

Solving the whole number parts

[tex]9-6=3[/tex]

Solving the fraction parts

[tex]\frac{1}{5} -\frac{2}{5} =-\frac{1}{5}[/tex]

Combining the whole and fraction parts

[tex]3-\frac{1}{5}=2\frac{4}{5}[/tex]

Step-by-step explanation:

For number one, you are looking for how many multiplication equations can equal the number given. For example,

C) 12: 1, 12, 6, 2, 3, 4,

For number 2, composite numbers are numbers that are products of two smaller numbers.

For example, 30=15x2, so it is composite. Try dividing the numbers to see if they are composite.

For number 3,

a) two factors: 5 (1, 5)

b) four factors: 15 (1, 15, 3, 5)

c) five factors: 20 (1, 2, 4, 5, 20)

Answer:

Step-by-step explanation:

b) 8: 1, 2, 4, 8

c) 12: 1, 2, 3, 4, 6, 12

d) 16: 1, 2, 4, 8, 16

e) 9: 1, 3, 9

f) 18: 1, 2, 3, 6, 9, 18

g) 50: 1, 2, 5, 10, 25, 50

h) 45: 1, 3, 5, 9, 15, 45

i) 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

j) 42: 1, 2, 3, 6, 7, 14, 21, 42

2a) 30: is a composite number

  b) 31: not composite

  c) 32: is a composite number

  d) 33: is a composite number

  e) 34: is a composite number

  f) 35: is a composite number

  g) 36: is a composite number

  h) 37: not composite

NOTE: a composite number has more than two factors

3a) two factors: 11

 b) four factors: 6

 c) five factors: 16

Answer:

the awnswr i believe is B, because a funcion has diffrent x's

Answer:

No, its not.

Step-by-step explanation:

The mixed number for the  given case can be obtained as 10²/₅.

A linear equation for the given case can be written by assuming any variable as the unknown quantity. Then, as per the given data the required operations are done and it is equated to some value.

Suppose the number be x.

Then, the following equation can be written for information given as,

1/4(x - 3.2) = 1.8

It can be solved as,

x - 3.2 = 1.8 × 4

⇒ x = 7.2 + 3.2 = 10.4

It can be written in mixed form as below,

10.4 = 10 + 4/10

⇒ 10 + 2/5 = 10²/₅

Hence, the required number is 10²/₅.

To know more about linear equation click on,

https://brainly.com/question/11897796

#SPJ2

Answer:

-1/2 ?

Step-by-step explanation:

Step-by-step explanation:

simple: it will become 3 times 1/9 = 1/9+1/9+1/9 = 3/9 , which will eventually be 1/3, when both numerator and denominator will be divided by thier common factor that is 3

Answer:

11.9

Step-by-step explanation:

Answer: x= -14.5

Hope this help

Answer:

Quotient 5/6

Product 8b

Sum 5/6+8b

Step-by-step explanation:

Sum is addition and there is only one expression of the three that has addition. So sum goes with 5/6+8b.

Quotient is division or fraction so 5/6 is the expression to go with quotient.

Product is times so 8b is the expression that goes with that because 8b means 8 times b.

Answer:

Quotient 5/6

Product 8b

Sum 5/6+8b

Step-by-step explanation: pls follow and star

Answer:

49

Step-by-step explanation:

28 / (4/7)

= 28 * 7/4

= 7*7

= 49

Answer:

The answer is 49

Step-by-step explanation:

Trust me I'll edit and show my work if you'd like but there

Answer:

It should be 16

Step-by-step explanation:

You should mutiply the expoents to get your answer

Answer:

$17.55

Step-by-step explanation:

simply multiply the price by the amount of the product so: 2.6*6.75= 17.55

Answer:

b or 7/9

Step-by-step explanation:

Answer:

The correct answer is B: 7/9

Answer:$210

Step-by-step explanation: First you have the original worth which is equal to 100% and an additional $40%. Next you divide the current worth by 140% which can be written as 1.4. The result is $210 as the worth a year ago.

Answer:

it's 0.15

Step-by-step explanation:

1.45-0.85= 0.6

0.6 ÷ 4

15

Answer:

Hmmm this is tricky maybe ask your teacher for help

Step-by-step explanation:

[tex]\text{I think it is} ~ y = \dfrac{10}3= 3 \dfrac 13 \text{ when x =10 because the relation is}~ y = \dfrac{x}3[/tex]

Answer:

Multiply.

Step-by-step explanation:

2 * 15 = 30

5 * 37.50 = 187.5

6 * 45 = 270

8 * 60 = 480

480 + 270 = 750

187.5 + 30 = 217.5.

Answer:

I THINK (so so so so so so so so sorry If you get wrong :( )  C. (8, 5)

Step-by-step explanation:

Since it is a linear equation I assumed the formula y2 - y1/ x2 - x1 would equal the solution

SORRY! if it is wrong

I really do apologize/

Answer:

I am pretty sure that it is c. (8,5)

Step-by-step explanation:

Answer:

2t = 1 / 2

Step-by-step explanation:

2t = 1 / 2

t = 1 / ( 2 x 2 )

t = 1 / 4

Answer:

C. 2t = 1/2

Step-by-step explanation:

A. 2 1/4 + (1/4) = 4

9/4 + 1/4 = 4

10/4 = 4

2 1/2 = 4 X

B. 4(1/4) = 16

1 = 16 X

C. 2(1/4) = 1/2

1/2 = 1/2

D. (1/4) - 1 = 3/4

-3/4 = 3/4 X

Answer:

T = 7

Step-by-step explanation:

Answer:

A)2.5×10⁴

Step-by-step explanation:

A)2.5×10⁴= 25000

B)3×10³= 3000

Answer:

x = 3/5

Step-by-step explanation:

After substituting each option into the equation, we find that the only option that makes the equation true is x=3/5, since 4/5 - 3/5 = 1/5.