the sum of two numbers is 21 the second number is six times the first one

Answer:

2x^2 - 3x - 9

Step-by-step explanation:

y=(2x+3)(x-3)

Multiply using FOIL

2x × x

2x × -3

3 × x

3 × -3

2x^2 - 6x + 3x - 9

Combine like terms

2x^2 - 3x - 9

Answer:

-4x-1

Step-by-step explanation:

-4x-1

Answer:

There were 4 pieces

Step-by-step explanation:

Answer:

x-intercept = 2

Step-by-step explanation:

Sum = 3

Product = -10

Factors = 5 , (-2)      {5*(-2) = -10  & 5 +(-2) = 3)

Rewrite the middle term using the factors: 3x = 5x - 2x

x² + 3x - 10 = x² + 5x - 2x - 10

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

                  = (x +5)(x - 2)

x² + 8x +15 = x² + 3x + 5x + 15

                  = x(x + 3) + 5(x + 3)

                  = (x + 3)(x + 5)

[tex]f(x) =\dfrac{x^{2}+3x -10}{x^{2}+8x + 15}\\\\=\dfrac{(x+5)(x -2)}{(x+5)(x+3)}\\\\=\dfrac{x-2}{x+3)}[/tex]

At x-intercept, y = o

[tex]\dfrac{x -2}{x + 3}=0\\[/tex]

x - 2 = 0

x  = 2

Answer:

2.50 or 2.5

Step-by-step explanation:

1/4=.25 so 25% of a number=5/8=0.625

So we multiply .625*4 to get the number. Since it's 25% and we want 100% to get it back to the original number

.625*4=2.50 or 2.5

Answer:

y=4/5x+B

what is the whole question?

Answer:

1/4 slope

Step-by-step explanation:

From (-8,0) to (-7,4) it goes 1 up and 4 to the right

Answer:

5

Step-by-step explanation:

Answer:

$35 profit

Step-by-step explanation:

351-316=35

Answer:

$35

Step-by-step explanation:

she bought it for $316 and sold it for more than she bought it for so we know that she made money.

so all  we have to do is subtract 351 from 316

Answer:

I think this is it 61.33

Have a blessed day <333

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

1. Add 4x +8

the awswer would be 12x

2. subtract the 12x from the lenght which is 24

then your and will be 12

Answer:

I believe it to be the first answer. Since, similar triangles always have the same slope.

Step-by-step explanation:

Answer:

y= 2x +7

Step-by-step explanation:

Answer:

I don't know ask your parents

Step-by-step explanation:

Answer:

First we need our slope equation

Y₂-Y₁/X₂-X₁

So we have our equation now lets plug it in

-9+2/-4-3 (we make it a plus for -9+2 because the two minuses cancel out).

So now we have -7/-7 which is 1 because -7 divided by itself is one. Thereby your answer is A. 1

Same thing for question 12

1-5/2-4

-4/-2 which is 2 because -2 goes into -4 two times so your answer is A. 2

The total return will be $5611.8

A 2 year investment of $5,300 earns 2.9%

The investment is compounded annually

The total return can be calculated as follows

= 5300 (2.9/100 + 1)

= 5300 (0.029 + 1)

= 5300(1.029)²

= 5300(1.0588)

= $5611.8

Hence the total return is $5611.8

Read more on total return here

https://brainly.com/question/27815598

#SPJ1

Answer:

2x+y = 3

Step-by-step explanation:

Let's take y=-2x+b through the point (1,1), so we get b is equal to 3. So this is y=-2x+3, so 2x+y=3

Answer:

440 man its so easy just add up all the numbers

Step-by-step explanation:

440

Answer:

1) See the explanation

2) 400 Students

3) 95 Students

Step-by-step explanation:

1) As can be known from the question

Then, draw the venn diagram according to the known conditions.

2) 60 + 75 - 20 = 115 { Draw a venn diagram to calculate }

115 + 285 = 400

3) 60 - 20 + 75 - 20 = 95 ( Draw a venn diagram to calculate }

Step-by-step explanation:

The line given:

Other lines to compare:

Slope=m=+4/3

#1

m=3/4

#2

m=-4/3

#3

m=-3/4

#4

m=4/3

[tex]\\ \sf\longmapsto y=\dfrac{-1}{3}x+1[/tex]

Here let's compare with slope intercept form

[tex]\\ \sf\longmapsto y=mx+b[/tex]

We get

y = mx + k

gradien = m

y=−1/3x+1

gradien = -1/3

btw, di indo jg ada gradien :)

Answer:

I think the first one is correct.

The inequality represent the given graph is y≤7 . Therefore, option B is the correct answer.

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

From the given graph, the line passes through (0, -7)

In the given graph the inequality is y≤7

Therefore, option B is the correct answer.

To learn more about the inequalities visit:

https://brainly.com/question/20383699.

#SPJ7

Answer:

Like this...

Step-by-step explanation:

The best represented graph should look something like this :)

(program used is Desmos)

Answer:

h(2)=8

Step-by-step explanation:

The problem basically asks you to substitute 2 in, hence h(2).

Here is your base equation.

h(x)=-x^2+6x

Plug in 2.

h(2)=-2^2+6(2)

Simplify, using PEMDAS.

h(2)=-4+12

h(2)=8

There's your answer!

Hope this helped :)

Ans of your question . in which class do u read?

Answer:

60x$70=$4100

Step-by-step explanation:

ekdjnsjs

Answer:

60 x 70= 4200$

Step-by-step explanation:

60

70   x

_____

(jk no need to do this just multiply them this way,because there are zeros just multiply 6 and 7 which equals 42 then add the zeros which are equal to= 4200$

Answer:

0, 1, 2

Step-by-step explanation:

Hi there!

0

It is possible for a line and a circle to not intersect at all.

1

It is also possible for a line and a circle to meet at one point only. They would be tangent to each other and touch.

2

Finally, it is possible for a line to intersect the circle. They would appear overlapping. In any of these cases where a line intersects a circle, they would have crossed the circle at two points.

3

A line and a circle can only have a total number of 2 intersection points.

I hope this helps!

Answer:

Hello there,

Let's solve,

It takes 4tsp for 18 cupcakes

thus for 1tsp it'll be,

= 18/4

= 4 and a half cupcake

That is one teaspoon of vanilla is needed for 4 and a half cupcakes.

All the best!

Answer:

Step-by-step explanation:

∠1 = ∠2 = 70    {Corresponding angles}

2x +2 y = ∠1

2x + 2y = 70 --------------(I)

2x + y = ∠2

2x +y =  70 --------------(II)

Subtract equation (II) from (I)

(I)    2x + 2y = 70

(II)   2x  + y =  70

     -       -      -     {subtract}

               y  = 0

Plugin y= 0  in equation(I)

2x + 0 = 70

2x = 70

x = 70/2

x = 35

x = 35 ;  y = 0

Answer: y = 4x-8

Step-by-step explanation:

(4,-8)

(x,y)