HELPP. I DON’T GET HOW TO DO THIS!!!! You have to write 2 equations and solve using method of substitution or method of elimination.

Answer:

~21.6 miles

Step-by-step explanation:

72:1 is 72mph

18 min is 30% of a hour

72 times .3

Answer:

2

Step-by-step explanation:

Here, we want to know the x-coordinate of the rotation about the origin of a point 90 degrees clockwise

A rotation of 90 degrees clockwise about the origin will turn the coordinates (x,y) to (-y,x)

The coordinates of A is (3,-2)

So

upon the assigned rotation, it becomes (2,-3)

So the x-coordinates is 2

Answer:

C: 2

Step-by-step explanation:

Here, we want to know the x-coordinate of the rotation about the origin of a point 90 degrees clockwise

A rotation of 90 degrees clockwise about the origin will turn the coordinates (x,y) to (-y,x)

The coordinates of A is (3,-2)

So

upon the assigned rotation, it becomes (2,-3)

So the x-coordinates is 2

Answer:

[tex]t = \frac{1}{2} [/tex]

Step-by-step explanation:

[tex]4(t + \frac{1}{4} ) = 3[/tex]

[tex] = > 4t + 1 = 3[/tex]

[tex] = > 4t = 3 - 1 = 2[/tex]

[tex] = > t = \frac{2}{4} = \frac{1}{2} [/tex]

Answer:

t = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Given

4(t + [tex]\frac{1}{4}[/tex] ) = 3 ← distribute parenthesis on left side

4t + 1 = 3 ( subtract 1 from both sides )

4t = 2 ( divide both sides by 4 )

t = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex]

Part A

(3x)^2*x^4

(3x)*(3x)*x^4 .... expand out (3x)^2

(3*3)*(x*x*x^4)

9x^6

Answer:  9x^6

============================================

Part B

It appears that Tonya forgot to square the 3 term and had this as her steps

(3x)^2*x^4

3x^2*x^4

3x^(2*4)

3x^8

Which is incorrect as the answer in part A indicates.

Not only is the '3' part wrong, but also the exponent of 8. Instead of multiplying the exponents, she should have added them.

The rule is a^b*a^c = a^(b+c). In this case, a = x, b = 2 and c = 4.

So x^2*x^4 = x^(2+4) = x^6

Hello

5 + ( -3) ( 6x - 5 )

= 5 - 3*6x + 5*3

= -18x + 20

Good day. ;)

Answer:

None of the above

Step-by-step explanation:

I got it correct.

Answer:

9 hours in total

Step-by-step explanation:

Answer:

9 hours

Step-by-step explanation:

Firstly the would add 1 1/2 and 2 1/2.

4

Then you would add 2

6

Lastly you would add 3

9

Therefore, your answer would be 9 hours.

Answer:

16

Step-by-step explanation:

3 divided into 12 =4

4x4=16

4 divided into 16 =4 so 16

Answer:

-1/2

Step-by-step explanation:

The equation for slope is y2 - y1 and x2 - x1. So you do 5(y2) - 4 (y1) which is 1. And 6(x2) - 8(x1) which is -2. Put 1 as the numerator and -2 as the denominator as you got -1/2. The fraction is negative because the -2 made it that way

Answer:

x=[tex]\sqrt 26[/tex]/2-2

Step-by-step explanation:

Answer:

The four consecutive odd integers = 15, 17, 19, 21

Step-by-step explanation:

Four consecutive odd integers in Mathematics when x is an integer is given as:

x , x + 2 , x + 4, x + 6

Where:.

First integer = x

Second integer = x + 2

Third integer = x + 4

Fourth integer = x + 6

The sum of the first and fourth is 55 greater than the opposite of the third

Hence :

x + x + 6 = -(x + 4) + 55

x + x+6 = (-x - 4) + 55

2x + 6 = -x + 51

Collect like terms

2x + x = 51 - 6

3x = 45

x = 15

Therefore,

First integer = x = 15

Second integer = x + 2 = 15 + 2 = 17

Third integer = x + 4 = 15 + 4 = 19

Fourth integer = x + 6 = 15 + 6 = 21

The four consecutive odd integers = 15, 17, 19, 21

Answer:

Average rate of change is -7/3 and the initial value is 24

Step-by-step explanation:

The rate of change is simply the slope of the line connecting the points

mathematically, that would be;

m = y2-y1/x2-x1

m = (10-3)/(6-9) = -7/3

Let us get the complete equation;

The general equation form is;

y = mx + b

where m is slope and b is y-intercept

y = -7x/3 + b

To get b, we simply insert one of the points

Let us use (9,3)

We insert x = 9 and y = 3

So we have;

3 = -21 + b

b = 3 + 21

b = 24

So the complete equation is;

y = -7x/3 + 24

The initial value is when x = 0

If x = 0, y will be 24

Answer:

331.66

Step-by-step explanation:

125(1.05)^20

Answer:

Step-by-step explanation:

[tex]\sqrt{25^2 - 24^2 }[/tex] = [tex]\sqrt{(25-24)(25+24)}[/tex] = √49 = 7 units

Answer:

x= 30

Step-by-step explanation:

3x + 50 = 140

3x = 140 -50

3x = 90

x = 90/3

x = 30

Answer:

x = 30

Step-by-step explanation:

The given angles are vertical and congruent , then

3x + 50 = 140 ( subtract 50 from both sides )

3x = 90 ( divide both sides by 3 )

x = 30

Answer:

114 yards

456 yards

Step-by-step explanation:

Given that:

Area of square parking lot = 12,996 square yards

The lenght of one side of the parking lot :

Area of a square = a² ; a = side length

Hence ;

12996 = a²

√12996 = a

114 = a

Hence, length of one side = 114 yards

Yards of fence needed to enclose parking lot :

Perimeter of a square = 4a ; a = side length

Perimeter = 4(114)

Perimeter = 456 yards

Step-by-step explanation:

The absolute maximum of the function is y = 4, at (3, 4).

Both ends of the function point downward, which stretches to negative infinity.

Hence the range is -infinity < y <= 4. (D)

Answer:

Please check the explanation.

Step-by-step explanation:

Given the points

When we plot P1(3, 2) and P2(6, 8), we determine the line segment P1P2.

The direction of the segment is from P1 to P2.

Determining the length of the segment P1P2.

[tex]\:l=\:\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]

  [tex]=\sqrt{\left(6-3\right)^2+\left(8-2\right)^2}[/tex]

  [tex]=\sqrt{3^2+6^2}[/tex]

  [tex]=\sqrt{45}[/tex]

  [tex]=\sqrt{5}\sqrt{3^2}[/tex]

  [tex]=3\sqrt{5}[/tex]

Thus, the length of the segment is:

[tex]\:\:\:l=3\sqrt{5}[/tex]

Determining the equation of a line containing the segment P1P2

Given the points

Finding the slope between P1(3, 2) and P2(6, 8)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(3,\:2\right),\:\left(x_2,\:y_2\right)=\left(6,\:8\right)[/tex]

[tex]m=\frac{8-2}{6-3}[/tex]

[tex]m=2[/tex]

Using the line point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where m is the slope of the line and (x₁, y₁) is the point

substituting the values m = 2 and the point (3, 2)

[tex]y-2=2\left(x-3\right)[/tex]

Add 2 to both sides

[tex]y-2+2=2\left(x-3\right)+2[/tex]

[tex]y=2x-4[/tex]

Thus, the equation of a line containing the line segment P1P2 is:

[tex]y=2x-4[/tex]

Answer:

700 hamburguesas....

Answer: 75%

Step-by-step explanation:

Answer:

yes!

Step-by-step explanation:

4y+7-3y=4y+3y-7

Answer:

no

Step-by-step explanation:

4y+7-3y

y=7

4y+3y-7

y=-1

Answer: 304.8

Step-by-step explanation;

7300:23.95 = 303.8

Answer:20

Because I looked it up

Answer:

angle one equals 114

Step-by-step explanation:

180-66=114

Answer:

114

Step-by-step explanation:

a straight line is 180 degrees and so you subtract 66 from 180 and you get 114

9514 1404 393

Answer:

  see below

Step-by-step explanation:

Make use of the quadratic formula.

For equation ax² +bx +c = 0, the solutions are ...

  [tex]x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]

Here, you have a=1, b=-1, c=1, so the solutions are ...

  [tex]x=\dfrac{-(-1)\pm\sqrt{(-1)^2-4(1)(1)}}{2(1)}=\dfrac{1\pm\sqrt{1-4}}{2}=\dfrac{1\pm i\sqrt{3}}{2}\\\\\boxed{x=\dfrac{1+i\sqrt{3}}{2}\text{ and }x=\dfrac{1-i\sqrt{3}}{2}}[/tex]

Answer:

15. 88%

Step-by-step explanation:

I did division

Answer:

16. is 11550

Step-by-step explanation: