Luis solved the following equation below: - x ^ 2 + 10x - 21 = y Line Line Line 1x = (- (10) plus/minus sqrt((10) ^ 2 - 4(- 1) * (- 21)))/(2(- 1)) 2x = (- 10 plus/minus sqrt(100 - 84))/- 2 3x = (- 10 plus/minus sqrt(16))/- 2 Line 4 x= -10 pm sqrt 4 -2 5x = (- 10 plus/minus 2)/- 2 Linedx = (- 10 + 2)/- 2 x = (- 10 - 2)/- 2 x = - 8/- 2 x = - 12/- 2 Line Line 7 Line 8 x = 4 x = 6 Did Luis solve the above function properly ? Justify why or why not and be specific (use the line numbers as reference

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The figure is a rhombus when the sides are the same length.

  21 -x = 2x +9

  12 = 3x . . . . . . . . add x-9 to both sides

  4 = x . . . . . . . . . . divide by 3

Answer:

20+m

Step-by-step explanation:

Answer:

20+m=?

Step-by-step explanation:

if moore already has 20 songs and his freind brought m more books then we would need to find the total amount of books more has now.

Answer:

4- 3(x -3) =17 x =10

Step-by-step explanation:

Answer:

i think its 20 too, tho good luck

Step-by-step explanation:

Answer:

Allison

Step-by-step explanation:

Allison:

2^6 = 64

Chris:

3³ = 27

Hannah:

4² = 16

Steve:

18^1 = 18

Answer:

Allison

Step-by-step explanation:

Allison

[tex]2^{6}[/tex] = 2 x 2 x 2 x 2 x 2 x 2 = 64

Chris

[tex]3^{3}[/tex] = 3 x 3 x 3 = 27

Hannah

[tex]4^{2}[/tex] = 4 x 4 = 16

Steve

[tex]18^{1}[/tex] = 18 = 18

Answer:

The correct one is 6 is 3 times as many as two.

Step-by-step explanation:

Answer:

43.20

Step-by-step explanation:

100%=24

1%=24÷100=0.24

100+80=180

180%=0.24×180=43.20

Answer:

789

Step-by-step explanation:

Answer: μp^​​​​ = 0.93

σp^ = √0.93(0.07)/40​​​

Step-by-step explanation:

Answers:

864cm

Step-by-step explanation:

Answer:

Step-by-step explanation:

6x4=24+1=25 75/25=3 .

oh and btw go back to high school

12 pieces ! ( > < )

for future reference, this will be a lot easier to do than using points !! so simple :))

use your calculator to divide the large number by the small number !! that should give your answer

and remember if a fraction is out of four think of it like quarters or 25 cents :3

so 75 divided by 6.25 is 12 !!

good job !!! ♡♡

try googling it thats what I would do. I think it would be 1/6 tho

Answer:

.04%

Step-by-step explanation:

you would subtract the 20.8 by 20 to get .8, then you divide .8 by the actual wait to get .04%

Answer:

5 and 1/4

Step-by-step explanation:

7*3/4= 3/4 of 7.

Answer:

Step-by-step explanation:

Answer:

one million six hundred sixty-three thousand two hundred

Step-by-step explanation:

Our fathers brought forth on this continent a new nation.

Answer:

450 ml.

Step-by-step explanation:

Volume of a cylinder:

The volume of a cylinder is given by:

[tex]V = \pi r^2h[/tex]

In which r is the radius and h is the height.

A cylindrical drinking glass has a base radius of 3.2 centimeters and a height of 14.0 centimeters.

This means that [tex]r = 3.2, h = 14[/tex]

How many milliliters of water does the glass hold when it is full?

Radius and height are measured in centimers, so the volume will be in cubic centimeters, which is the same as milliliter. So

[tex]V = \pi(3.2)^2*14 = 450.3[/tex]

Rounding to the nearest millimeter, the answer is 450 ml.

Answer:

161

Step-by-step explanation:

8*14+13*3+(5*4)/2

112+39+10 = 161

Answer:

161 [tex]m^2[/tex]

Step-by-step explanation:

Divide the given figure up into smaller pieces, calculate the area of each of the smaller pieces and add up the area to find the total area of the figure. One can partition the figure into two rectangles with dimensions (14 by 8) and (13 by 3) respectively, and a (4 by 5) triangle.

The formula for the area of a rectangle is (base * height), substitute in the given values,

14 * 8 = 112

13 * 3 = 39

The formula for the area of a triangle is ([tex]\frac{(base)*(height)}{2}[/tex]), substitute in the given values and solve,

[tex]\frac{(5)*(4)}{2}[/tex] = 10

Now add up all the values to find the total area of the figure,

112 + 39 + 10 = 161

Answer:

everything on the right, multiply by 4, and everything on the left, divide by 4

Step-by-step explanation:

The way to get from 8 to 2 is by dividing by 4. the same thing with the opposite side, but instead of multiplying, divide.

☁️ My answer is in the picture attached.

☁️ Authentic Answer

☁️ 좋은 하루 되세요 !!

[tex]-HunnyPeachy[/tex]

Answer:

The price of the items before the discount was $36.

Step-by-step explanation:

Since Emma has a loyalty card good for a 10% discount at her local pharmacy, to determine what her total in dollars and cents be, after the discount and before tax, if the total cost of all the items she wants to buy is $ 32.40, the following calculation must be made:

100 - 10 = 90

90 = 32.40

100 = X

100 x 32.40 / 90 = X

3240/90 = X

36 = X

Therefore, the price of the items before the discount was $ 36.

Answer:

[tex] y = \frac{1}{4}x + 1 [/tex]

Step-by-step explanation:

Line is passing through the points (0, 1) & (4, 2)

Slope of line = (2 - 1)/(4 - 0) = 1/4

y-intercept (b) = 1

Equation of line in slope-intercept form is given as:

[tex]y = mx + b \\ \\ y = \frac{1}{4}x + 1 [/tex]

Answer:

[tex]y = \frac{1}{4}x + 1[/tex]

Step-by-step explanation:

Slope intercept form allows one to write an equation for a line from only the y-intercept and the slope, so we need to identify those two things.

The slope is simply [tex]\frac{y_2 - y_1}{x_2-x_1}[/tex]=>[tex]\frac{2-1}{4-0}[/tex]=> 1/4

The slope intercept is the y value when x = 0, and since we have the point (0,1), the y-intercept must be 1

The equation is: y = mx + b where m is the slope and b is the intercept so the final equation is:

[tex]y = \frac{1}{4}x + 1[/tex]

Answer:

1/5 or 0.2 (There both the same amount)

Step-by-step explanation:

Answer: x=2−2√3,2+2√3

Step-by-step explanation:

I know how to solve this problem

Answer:

I believe that it is 4

Step-by-step explanation:

The slope would be 2/3 and you would go over right 3 because that's y, so if you go right 2 and up 3 (the slope), it would intercept at 6,2

Answer:

I think the answer is m= -1/3 b=7/3

Explanation:

so first, you need to make equations using the info that the question gave.

f(-2)= m(-2)+b f(4)= m(4)+b

= -2m+b =4m+b

f(-2)= 3 f(4)= 1

-2m+b= 3 4m+b=1 -(2)

b= 3+2m -(1)

substitute (1) into (2) : 4m+(3+2m)=1

4m+2m+3=1

6m=1-3

6m= -2

m= -2/6

m= -1/3

Substitute m= -1/3 into (2)

4(-1/3) + b=1

-4/3 +b =1

b= 1+ 4/3

b= 7/3

Therefore, m= -1/3 b=7/3

and that's how you do it

Answer:

8

Step-by-step explanation:

Answer:

The asnwer is B. 133

Step-by-step explanation:

14X950=13,300

13,300/100=133