PLZZZ HELP ASAP completly clueless

PLZZZ HELP ASAP Completly Clueless

Answers

Answer 1

Answer:

c

Step-by-step explanation:

quadratic formula:  -b±√b²-4ac/ 2a

a= -10

b= 12

c= -9

-12±√144- 4(-10)(-9)/ 2(-10)

-12±√144- 360/ -20

-12±√-216/-20

6±3i√6/ 10

simplify: 3/5± 3i√6/10


Related Questions

I will give you BRAINLIEST for the correct answer

Answers

Answer:

d

Step-by-step explanation:

how do you write a linear equation that relates y to x

Answers

Answer:

Find the slope and y-intercept of the line. = −2 Because the line crosses the y-axis at (0, 3), the y-intercept is 3. So, the linear function is y = −2x + 3. Use the graph or table to write a linear function that relates y to x.

Step-by-step explanation:

Workout plus offers a membership for $30 each month plus a $100 startup fee. Fit Works offers a membership for $50 each month plus a $20 startup fee. After how many months will memberships to both gyms cost the same amount?

Answers

Answer:

4 months

Step-by-step explanation:

Let

x = number of months

Workout plus = 100 + 30x

Fit works = 20 + 50x

After how many months will memberships to both gyms cost the same amount?

Equate the cost of both gyms

Workout plus = Fit works

100 + 30x = 20 + 50x

100 - 20 = 50x - 30x

80 = 20x

x = 80/20

x = 4 months

After 4 months, memberships to both gyms cost the same amount

What is 30% of 60?
options:

26

36

46

56

Answers

Answer:

None of these are correct.. 30% of 60 is 18.

Step-by-step explanation:

60 x .30 = 18

what is the answer to this fraction 4/8+2/8+4/8​

Answers

Answer:

1 2/8 OR 1 1/4

Step-by-step explanation:

4/8 + 2/8 + 4/8 =

6/8 + 4/8 =

10/8 =

1 2/8 OR 1 1/4

Hope that helps!

It is the assumption of staff at NSA that 96% of students will graduate on time. Last year 150 out of 154 students graduated on time. What is the p-value and z-score of the graduation rate at NSA?

a. p = .625, z = .73
b. p = .73, z = .625
c. p = .96, z = 1.976
d. p = 1.10, z =0.986

Is the staff at NSA correct in assuming that 96% of NSA students will graduate on time?

Yes
No

Answers

The answer is no and c your welcome

which expressions are equal to 2(2x + 1)​

Answers

Answer:  5

Step-by-step explanation: be 2 x 2 = 4 so +1 = 5

What is the value of log2 32?

Answers

Answer:

answer would be 5

Step-by-step explanation:

Logarithm base 2 of 32 is 5.

Can some one awnser the following

Answers

Answer:

-11

Step-by-step explanation:

can someone help with this question.​

Answers

Answer:

         Emily                Ben               Cath

         Adam               Darren           Empty

brainliest to correct answer

Answers

Yes
Jorge is thinking of the number 90
Because it’s bigger than 50
Smaller than 100
Divisible by 3
Even number

Gary is searching for a buried treasure. The treasure map is on a rectangular coordinate grid with only the following clue: The treasure is at a spot where one coordinate is the opposite of the other and the y-coordinate is 4 greater than the xcoordinate. At which coordinates would the treasure be located on the map?​

Answers

Answer:

on the grid it says 4 but gary is looking for treasure so it would be worth more than your you know?

Step-by-step explanation:

Write an equation of the line that passes through the points ( 2,6) and (- 8, 1)

Answers

Answer:

[tex]y = \frac{1}{2} x+5[/tex]  

Step-by-step explanation:

1) First, find the slope of the line that passes between the two points. Substitute the x and y values of (2,6) and (-8,1) into slope formula, [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]. Then, solve:  

[tex]m = \frac{(1)-(6)}{(-8)-(2)} \\m = \frac{1-6}{-8-2} \\m = \frac{-5}{-10} \\m = \frac{1}{2}[/tex]

So, the slope is [tex]\frac{1}{2}[/tex].

2) Now, write the equation of the line using the point-slope formula, [tex]y-y_1 = m (x-x_1)[/tex]. Substitute real values for [tex]m[/tex], [tex]x_1[/tex], and [tex]y_1[/tex].

Since [tex]m[/tex] represents the slope, substitute [tex]\frac{1}{2}[/tex] in its place. Since [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of a point the line intersects, substitute the x and y values of one of the given points into the formula as well. (Any of the two will do. Either choice will represent the same line. I chose (2,6).) Then, isolate y to put the equation in slope-intercept form and find an answer:

[tex]y-6 = \frac{1}{2} (x-2)\\y-6 = \frac{1}{2} x-1\\y = \frac{1}{2} x+5[/tex]

2. Vera is half as old as Chuck. Write an expression in terms of x that represents her
age.

Answers

Answer:

y=x1/2

Step-by-step explanation:

y = Vera

x = Chuck

Y=1/5x+14 when b=7? how do i solve this?

Answers

Answer:

Step-by-step explanation:

Y = 1/5 x + 14 where b = 7

Result:

x + 70 = 5 Y

Geometric figure:

line

Alternate forms:

x = 5 Y - 70

x - 5 Y + 70 = 0

Real solution:

Y = x/5 + 14

Solution:

Y = x/5 + 14

Integer solution:

x = 5 n, Y = n + 14, n element Z

Solution for the variable x:

Translate this sentence into an equation.
The sum of 10 and Rhonda's savings is 64.
Use the variable r to represent Rhonda's savings.

Answers

Answer

Rhonda's savings is r and 10 would be what she already has so

Step-by-step explanation:

sum of = +

r + 10 = 64

Help!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

2826yd²

Step-by-step explanation:

The area of a circle is 3.14r²

Youre given a diameter of 60 so the radius would be 30 now plug into the equation and you get 2826

Answer:

11,309.734

Step-by-step explanation:

hope it is correct.

if is correct please mark as brainliest

have a great day/night

thank you

19NBoli

Fill in the blanks to create a true statement.
(125 x^3 y^-12)^-2/3=

Answers

Answer:

Step-by-step explanation:

Factorize 125 = 5 * 5 * 5 = 5³

[tex](125x^{3}*y^{-12})^{\frac{-2}{3}} = (5^{3}x^{3}*y^{-12})^{\frac{-2}{3}}\\\\ = 5^{(3*\frac{-2}{3})}* x^{[3*\frac{-2}{3}]}*y^{-12*\frac{-2}{3}}\\\\= 5^{-2} * x^{-2} * y^{(-4*-2)}\\\\=\frac{1}{5^{2}x^{2}}*y^{8}\\\\=\frac{y^{8}}{25x^{2}}[/tex]

[tex](a*b)^{m} = a^{m}*b^{m}\\\\a^{-m}=\frac{1}{a^{m}}[/tex]

helppppppo poooooooo

Answers

Answer: 3.886 m/s

Step-by-step explanation:

1 A.

The initial velocity (u) =  10 km/hr or 2.77 m/s

1 B.

The final velocity (v) = 60 km/hr or 16.66 m/s

1 C.

5 seconds.

1D. Acceleration = Final velocity - initial velocity / time

= 16.66 m/s - 2.77 m/s / 5 s

= 3.886 m/s.

Perform the indicated operation and simplify. (x+3)(x2−5x+2) Write your answer in standard form. No spaces when entering your answers. For this question, you will have to use the carrot key ^ for an exponent and the carrot key is found by pressing "shift" and "6". For example, 42 would be entered as 4^2

Answers

Answer:

x^3-2x^2-13x+6

Step-by-step explanation:

We are to simplify the expression (x+3)(x^2−5x+2). This is as shown;

(x+3)(x^2−5x+2)

Expand

= x(x^2)-5x(x)+2x+3x^2-3(5x)+6

= x^3 - 5x^2+2x+3x^2-15x+6

Collect the like terms

= x^3 - 5x^2+3x^2+2x-15x=6

= x^3-2x^2-13x+6

This gives the required expression

Evaluate the expression for j = 0.

5j2 =


the 2 is (2 the second power)​

Answers

Answer:

0

Step-by-step explanation:

anything times 0 equals 0

Challenge A new coffee shop sold cups of hot coffee and cups of iced coffee during its first two days. The ratio of cups of hot coffee sold to cups of iced coffee sold on the first day was . On the second​ day, the shop sold as many cups of iced coffee as the first day. The ratio of cups of hot coffee sold to cups of iced coffee sold on the second day was . How many cups of each type of coffee did the shop sell each​ day?

Answers

Answer:

1 day =   221 hot coffee cups and 117 iced coffee cups

2 day = 247 hot coffee cups and 234 iced coffee cups

Step-by-step explanation:

A new coffee shop sold 468 cups of hot coffee and 351 cups of iced

coffee during its first two days. The ratio of cups of hot coffee sold to cups of

iced coffee sold on the first day was 17 : 9. On the second day, the shop sold

twice as many cups of iced coffee as the first day. The ratio of cups of hot

coffee sold to cups of iced coffee sold on the second day was 19 : 18.

a) How many cups of each type of coffee did the shop sell the first day?

Let  cups of hot coffee be denoted by x

Then

17x+ 19x= 468

or

36x= 468

x= 13

On the first day the number of hot coffee cups sold are 17y or 17*13=  221 cups.

On the second day the number of hot coffee cups sold are 19y or 13*19=  247 cups.

Similarly Let  cups of iced coffee be denoted by  y

Then

9y+18y= 351

27y= 351

y= 351/27= 13

On the first day the number of iced coffee cups sold are 9y or 13*9=  117 cups.

On the second day the number of iced coffee cups sold are 18y or 13*18=  234 cups.

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The diagram shows a pentagon ABCDE.
BC is parallel to AE and angle CDE is a right angle.
Find the values of r and y.​

Answers

Step-by-step explanation:

[tex]find \: y \\ 180 - 90 = 90 \\ 90 \div 2 = 45 \\ y = 45 + 90 = 135[/tex]

[tex]find \: x \\ 360 - 2(90) - 76 = \\ = 360 - 180 - 76 = \\ = 180 - 76 = \\ = 104[/tex]

Can someone help me thank you.

Answers

To get the area, you do 13 * 9, which is 117, and the perimeter is 13+13+9+9 which is 44 :)

Answer:

Area = 117 sq. ft.Perimeter = 44 feet

Step-by-step explanation:

Given,

Length of the bedroom = 13 feet

Width of the bedroom = 9 feet

Therefore,

First Case:

Area of the bedroom = Length × Width

= 13 feet × 9 feet

= 117 sq. ft.

Second Case:

Perimeter of the bedroom = 2(Length + Width)

= 2 (13 + 9) feet

= 2 × 22 feet

= 44 feet

Hence,

Required area of the bedroom is 117 sq. ft. and perimeter of the bedroom os 44 feet (Ans)

A group of Metropolis Middle School students volunteered to build a new city playground. A local pizzeria donated 20 large pizzas for their lunch. The volunteers shared the pizza equally.
Complete the following table to show how the amount of pizza for each
volunteer depends on the number of volunteers.
Number of Volunteers
1
2
5
10
20
40
Number of Pizzas per Volunteer
20
10
?
?
?
?

Answers

Answer:

so so sorry if this anwser is wrong hope this helps

Step-by-step explanation:

number of vounteers                number of pzzia per volunteer

1                                                                   20

2                                                                   10

5                                                                    0

10                                                                 -10

20                                                                -20

40                                                                -40

|x +2], if x>-1
Plz help

Answers

Answer:

Step-by-step explanation:

greater than 1   ,  is your teacher just giving you brain teaser questions?  these seem like they are .. "out in the weeds"  type of questions,  not really useful math   :/  

Please help me find the experimental probability for each question! (This is not multiple choice)
a. Tossing 2 blue
b. Tossing 1 blue and 1 pink
c. Not tossing all blue
Thanks. I will give brainliest

Answers

Answer:

1. 4/15

2.8/15

3.11/15

P{E} = No. of Favourable Outcomes/Total Outcomes

In physics, a force is any interaction that, when unopposed, will change the motion of an object.

[tex] \\ [/tex]

Is 8 a solution to 6+6=48

Answers

Answer:

yes

Step-by-step explanation:

8x6

Answer:no it is not

Step-by-step explanation:

please help I will give brainliest


-5x+4y=7 y=-2x-8

Answers

x = 13, y = 18

hope this is right

Answer:

x=−3 and y=−2

Step-by-step explanation:

-5x+4(-2x-8)=7

-13x-32=7

-13x-32+32=7+32

-13x=39

divide both sides by -13

x=-3

substitute x for -3

-2(-3)-8= -2

y= -2

How do I solve this??

Answers

Answer:

swsry

Step-by-step explanation:

ssry

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