Please help what's the answer

Answer:

The value of b is either + 6 or -6

Step-by-step explanation:

Here, given that we have the value for the discriminant, we want to calculate the value for the coefficient of x

mathematically, the discriminant can be calculated using the equation;

D = b^2 - 4ac

a represents the coefficient of x^2 which is 3

b represents the coefficient of x given as b

2 represents the last number

D is the discriminant = 12

So we have that;

12 = b^2 - 4(3)(2)

12 = b^2 - 24

b^2 = 24 + 12

b^2 = 36

b = √36

b = +6 or -6

Answer:

Step-by-step explanation:

3b+8c=50c

3b=50c-8c

3b=42c

b=14c

So there are 14 cookies in each box.

Answer:

14

Step-by-step explanation:

First, take away the 8 cookies that were not part of the 3 boxes.

(50 - 8 = 42)

Now we know that 3 boxes of cookies can hold 42 total cookies. However, we need to know how much cookies 1 box can hold. If the 42 cookies are divided evenly between the 3 boxes, our equation would look like this:

42/3 = 14

Therefore, the answer is 14 cookies in each box.

Answer:

IM and JM

Step-by-step explanation:

They both have congruency marks that correspond to each other, indicated by the three short lines in the middle of each.

Answer:

The distance is 20

Step-by-step explanation:

Answer:

9x

Step-by-step explanation:

Since all of them have the same variable you can add them up

1x+3x+5x=9x

Answer:

-4

Step-by-step explanation:

We plug in the variables to get (3-4)(3+1)=(-1)(4)=-4

Answer:

-4

Step-by-step explanation:

(3 - 4) (3 + 1)

(-1) (4)

(-4)

hope this helps!!

Answer: this is correct

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

The transformation of the shape is most definitely correct.

Answer:

D. It is not possible to draw a conclusion

Step-by-step explanation:

we are not given enough information about the library schedule.

Answer:

live laugh love

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Let's put the equations in standard form. For the first equation, we have:

−11y=6(z+1)-13y

2y−6z=6

y−3z=3

The second equation is:

4y−24=c(z−1)

4y−cz=24−c

If we multiply the first equation by 4, we get:

4y-12z=12

Comparing the two equations, we see that if c=12, both equations will be the same and there will be infinitely many solutions.

The correct value of c is 12.

Answer:

4

Step-by-step explanation:

slope is rise/run, rise is 4, while run is 1.

4/1=4, you'd write the slope as 4x in an equation, not sure if you're supposed to write it as 4 if it's just asking for the slope.

Answer:

C

Step-by-step explanation:

(0,-4) (-4, -3)

-3- -4 / -4 -0 = 1/-4 is the slope

so is C

Answer:

The answer is B.

Step-by-step explanation:

slope-intercept form is y=mx + b with m being slope and b being y-intercept. slope is change in y over change in x, and in this situation the change in y is 1 and the change in x is 4. so, slope = 1/4. so now our equation is y=1/4x+b. now we have to find the y-intercept, which in this graph is -4. so, the equation is y=1/4x+-4. Hope this helps!

Answer:

a^4b^3/2

Step-by-step explanation:

Answer:

the simplify version is a^16 b^3

Answer:

J. 9

Step-by-step explanation:

First we have to plot the points (In the picture)

Now we have to count how close the are together which would make it 8.

And the closest to that would be 9.

Hope this helps :)

Answer:

Step-by-step explanation:

The distance between two points is

d^2=(x2-x1)^2+(y2-y1)^2

We have points (-4,-6) and (4,4) so

d^2=(-4-4)^2+(-6-4)^2

d^2=8^2+10^2

d^2=64+100

d^2=164

d=12.8

So H 13 units is closest to the distance between the two points.

Answer:

A) [tex]x = -12[/tex]

B) [tex]y = - 1[/tex]

Step-by-step explanation:

Answer:  the first one is -12 and the second one is 4

Answer:

See explanation

Step-by-step explanation:

Recall that all the sides of the square are equal

Hence;

Area of a rectangle= l * b ------- equation 1

Perimeter of a rectangle = 2(l + b)----------equation 2

Area of the rectangle = 140 square centimeters

140 = lb

l = 140/b

Perimeter of the rectangle =  54 centimeters

substituting l = 140/b into equation 2

54 = 2(140/b + b)

Multiplying through by b

54b = 280 + 2b^2

Hence;

2b^2 - 54b + 280 = 0

Solving the quadratic equation

b=20 or b=7

substituting b=20 or b=7 into l = 140/b

l = 140/20 or l = 140/7

l = 7 or 20

THEREFORE;

b=20 cm or b=7 cm

l = 7cm or 20cm

Answer:

1.70

Step-by-step explanation:

15.30 ÷ 9 = 1.70

1.70 dollars per chicken wing

I hope this helps

Answer:A

Step-by-step explanation:

The exponential decay functions are y = 2(2/5)ˣ and y = 2(4/3)ˣ

An exponential function's curve is created by a pattern of data called exponential decay, which exhibits higher decreases over time.

The exponential decay function:

Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.

We know,

The exponential decay function:

Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.

And to find the y-intercept,

Substitute the value of x = 0 and solve for y.

Then y =2.

The functions are y = 2(2/5)ˣ and y = 2(4/3)ˣ

Therefore, the function are y = 2(2/5)ˣ and y = 2(4/3)ˣ.

To learn more about the exponential decay;

https://brainly.com/question/14344314

#SPJ2

Answer:

yeah the graph does match the equation

Answer:

Yes because the y intercept is at -1 like the equation and also can I have brainliest.

Step-by-step explanation:

Answer:

-21

Step-by-step explanation:

Given the sum of the first n term as;

Sn = 2 - 7n^2

The nth term is expressed as;

Tn = Sn - Sn-1

Sn-1 = 2 - 7(n-1)^2

Tn = 2 - 7n^2 - (2 - 7(n-1)^2)

Tn = -7n^2 + 7(n-1)^2

To get the second term, we will substitute n = 2 into the resulting expression

T2 = -7(2)^2 + 7(2-1)^2

T2 = -7(4)+7(1)^2

T2 = -28 + 7

T2 = -21

Hence the second term of the sequence is -21

Answer:

MMEEEE but im SOOO behinnnd

Step-by-step explanation:

Answer:

Not me sorry.

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

4n + 2 and n = 3

4(3) + 2 = 12 + 2

12 + 2 = 14

Answer:

Bro u need to shu.t up all ready

Step-by-step explanation:

Answer:

The correct answer is 64.6%

Step-by-step explanation:

95 student total are taking a math class out of 147 kids. 95/147 = 0.646, carry the decible and you get your percentage which is 64.6%

Answer:

7.15 (two sig figs)

Step-by-step explanation:

There is a time limit dude, googling is a faster way

1. Area of rectangle

A = l*z

2. Find z

93 = 13*z

z ≈ 7.15

Answer:

7km

Step-by-step explanation:

The given figure is a rectangle

The formula to find area of rectangle is,

[tex]l \times b[/tex]

Here,

Length = 13km

Area = 91 km^2

Then breadth = 91/13

= 7 km

Answer:  x < 3

Step-by-step explanation:

3x+4   < 13

     3x < 9                  (Subtracted 4 from both side)

       x  < 3                  (Divide by 3 from both side)