Find the zeros of y=x2 - 4x-9 by completing the square.
A X=3/13
B. x=13
C. x=-21-13
D. x=213

Answer:

I love Math anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

The GCF of 40x and 25 is 5.

Step-by-step explanation:

5 goes into both 40 and 25.

Answer:

Step-by-step explanation:y=4  x=3

Answer:

33

Step-by-step explanation:

1. 3(x - y)

2. 3(9 - -2)

3. 3(9 + 2)

4. 27 + 6

5. 33

[tex]3(x - y)[/tex]

where x = 9 and y = - 2.

[tex]3(9 - ( - 2)) \\ 3(9 + 2) = 3(11) \\ 33[/tex]

Hence, the answer is 33.

[tex] \large{33}[/tex]

Answer:

[tex]2.5h = 3g[/tex]

Step-by-step explanation:

Given

[tex]Sugar = 2\frac{1}{2}\ cups[/tex]

[tex]Bars = 3\ pans[/tex]

Required

Determine the equation for h pans and g cups

We have that:

[tex]Sugar = g[/tex]

[tex]Bars = h[/tex]

To do this, we make use of the following equivalent ratios.

[tex]Bars : Sugar = Bars : Sugar[/tex]

So, we have:

[tex]3 : 2\frac{1}{2} = h : g[/tex]

Express fraction as decimal

[tex]3 : 2.5 = h : g[/tex]

Express as fraction

[tex]\frac{3}{2.5} = \frac{h}{g}[/tex]

Cross multiply

[tex]2.5h = 3g[/tex]

No options were given. So, I will stop here

Answer:

0

Step-by-step explanation:

find mean of given numbers u notice that mean is actually 6 so no number is required to be included

Answer:

Step-by-step explanation:

Mean is the average

4.

Data given:

The mean is

5. Let the added number is x, then the mean is:

Answer:

Sorry dude I don't know the answer.

Answer:

$36.38

Step-by-step explanation:

If the sales tax rate is 7% in New York, then how much sales tax would you pay in New York for a $34 pair of pants?

Given data

Tax= 7%

Cost = $34

Let us solve for the amount of tax

=7/100*34

=0.07*34

=2.38

Hence the total is =2.38+34

=$36.38

Answer:

4 cubes will be shown in the right view of the model and the 1st option is the top view for the model.

Answer:

-35

Step-by-step explanation:

X's cancel out each other

-10+-25

Answer:

15/28 loads of laundry needs to be washed.

Step-by-step explanation:

2/7 + 1/4

=  

2 × 4 + 1 × 7

7 × 4 + 4 × 7

=  

8/28 + 7/28

=  

8 + 7/ 28

=  

15/28

Answer:

204

Step-by-step explanation:

The area of the top triangle = 5*12/2 =                        30

The area of the bottom triangle =                                30

The hypotenuse of the top triangle is

5^2 + 12^2 = hypotenuse^2

25 + 144 = hypotenuse^2

169 = hypotenuse squared.

hypotenuse = sqrt(169)

hypotenuse = 13

Now the back face = 13 * 8 =                                       104

The area of the left side rectangular  face = 5*8 =     40

The total area = 30 + 30 + 104 + 40 =                        204

Answer:

The median of a list of numbers is the center number when you order the numbers from least to greatest.

Since there are 9 numbers; the center number is the fifth number. Four numbers below and four numbers above. Median is 4.44 and the mean or average is 4.09.

Step-by-step explanation:

List in order from least to greatest

(3.25, 3.25, 3.66, 3.83)  4.44  ( 4.52, 4.57, 4.69, 4.74) Notice 4 numbers below 4.44 are lower and 4 numbers above 4.44 are higher.  So the median number is 4.44

For the mean you add all the number and divide the sum by the number of numbers you have. We know you have 9 numbers from the first part. So, add the numbers from the list (3.25 +3.25+ 3.66 + 3.83 + 4.44 + 4.52 + 4.47 + 4.69 + 4.74)  = 36.85  Then divide by 9 = 4.09

Answer:

The answer is number 3

Step-by-step explanation:

I hada this question on a quiz and i clicked this and it was rigt

Answer:

4 and -3 if im not wrong......

Answer:

-6

Step-by-step explanation:

-30÷5=-6

this is the ans

Answer:

1) 3:24

2) 3:24 and 3:25

Step-by-step explanation:

just look at the time given

Answer:

3:23 and 3:24

Step-by-step explanation:

Answer:

Allan is 150cm tall.

Step-by-step explanation:

120% of 150 is 180.

So, the answer is 150cm

Hope this helps! :)

Answer:

its 63 lol

Step-by-step explanation:

Answer:

63

Step-by-step explanation:

x/3-10=11

x/3=21

crisscross then

x=21×3

c=63

Answer: id-k C and don’t know didn’t look into it to much

Step-by-step explanation:

Answer:

x = 36°

Step-by-step explanation:

x + 20° + 4x = 200° { exterior angle of a triangle is equal to the sum of two opposite interior angles }

5x = 200° - 20°

5x = 180°

x = 180° / 5

x = 36°

Hope it will help :)

Answer:

1. Move the variables to one side: 3(-4+4) = -3n

2. Distribute. You will end up with 0 = -3n

3. Divide both sides by -3. n = 0

Step-by-step explanation:

Answer:

n=0

Step-by-step explanation:

3(-4+4)+5n=2n

first distribute

-12+12+5n=2n

combine like terms

5n=2n

subtract 2n on both sides

3n=0

divide by 3 on both sides

n=0/3

which is also equal to

n=0

Answer:

Area =0.41 units^2

Step-by-step explanation:

sin 26 degrees=height/1.53

height=.438371 x 1.53=0.67

Area =(1/2)(0.67)(1.22)=0.41 units^2

the total no of population=1650

13:17 first add the two numbers 13+17=30

then 13/30×y =715 , i make 13 at the numerator because it's males ratio

after that 30/13×13/30y =715 ×30/13

y =715×30/13

y =1650

after u find the total no it's simple to find the no of females

17/30×1650=935

Answer:

3=111

Step-by-step explanation:

Answer:

(4,6)

Step-by-step explanation:

i used a ca lC uLator

Answer:

120 degrees

Step-by-step explanation:

Answer:

It is the second one.

Step-by-step explanation:

a and e are equal because they are mirrored. d and b are equal because they are on the same  line and at the same point where the parallel lines go through. b and f are also mirrored. That leaves c and e which don't match.

Step-by-step explanation:

i already done it.thank you