EASY 100 POINTS

Create a memory device to help you remember the quadratic formula. The device could be a song, drawing, rhyme, mnemonic device, or anything else you can think of that would be useful to you.

Answers

Answer 1
x is equal to negative b plus or minus the square root of b squared minus four ac, all over 2a.

Related Questions

9. A bag contains 1 orange cube, 6 white cubes, and 3 grey cubes. Three cubes are drawn,
one at a time, without replacement Find the probability that the order in which they are
selected is
a white, white, white
b) white, white, grey
c) orange, white, grey
d) grey, white orange
urgent plz answer!!​

Answers

Either a or b. Probably b.

There are far more white cubes than orange, so you can assume you won’t pull the orange cube. There is double the amount of white cubes than grey, but you’re still likely to pull at least one grey cube.

2496 of what number is 6?
24% of is 6.

Answers

6% of 41600= 2496

Please correct me
If I am wrong :)

Brainiest please

Pablo grew a plant for school and recorded the growth of the plant
each week. He wrote ordered pairs to organize his data: (1, 5), (2, 8),
(3, 8), (4, 11), (5, 15).
Is this relation a function? Explain.

Answers

Answer:

Yes. the relation is a function

Step-by-step explanation:

Here, we want to check if the relation is a function

if a relation is a function, then every x-values (input values) will have one y-value

No two output values (y values) will have a single x value

Looking at the pairs;

It is a function

Although two x values have same y value; 2 and 3 to 8; no two y values have same x value

Hence, the ordered pairs is a function

please help me with this one

Answers

Answer:

50.24

Step-by-step explanation:

a=(pi)r²

A =(pi)4²

A = 50.27

but I used the actual pi if you use 3.14 I think you'll get 50.24 but that's the closest answer.

Hope you get it right

4. $5,000 is deposited into an account with an annual interest
rate of 3% compounded continuously. How much will be in the
account after 6 years? Round to the nearest cent.

Answers

Answer:

I wanna say $5,970.26

Step-by-step explanation:

40% of the flowers in a garden are red. If 70
flowers are growing in the garden, how many
red flowers are growing?

Answers

Answer:

40% of 70 = red flower hence red flower are 28

Answer:

So there are 28 red flowers are growing

Step-by-step explanation:

=40/100 ×70

= 28

Plz mark me as Brainest answer

If the signal had four circular lights, each having the same diameter, what would the total area of all four lights be?

Answers

Answer:

The answer is "[tex]153.86 \ in^2[/tex]"

Step-by-step explanation:

The circular light which fits around rather than is sufficiently large for fire a camera is indeed a ring light. The ring light provides light with very little darkness, as the bright light is very close to a lens's vertical system. It's also usually called glamour or brightness of beauty.

Let's Each light surface area has [tex]38.465\ in^2[/tex].

Therefore, the total area of four lights is [tex]38.465 \times 4= 153.86\ in^2[/tex].

The price of a train season ticket increased by 4%.
The price of the ticket increased by £ 152.20
Work out the price of the train ticket before the increase.

Answers

The original price of the train ticket will be £3805.

What is the percentage?

The Percentage is defined as representing any number with respect to the 100. It is denoted by the sign %.

Given that:-

The price of a train season ticket increased by 4%.The price of the ticket increased by £152.20

The original price will be calculated as:-

4 %  =  152.20

1 % =  152.20 / 4

1 %  = 38.05

So 100 percent will be calculated by multiplying by 100 on both sides.

100 % = 38.05 x 100

100% = 3805

Therefore the original price of the train ticket will be £3805.

To know more about percentages follow

https://brainly.com/question/24304697

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Out of 100 employees at a company, 92 employees either work part time or work 5 days each week. There are 14 employees who work part time and 80 employees who work 5 days each week. What is the probability that a randomly selected employee works both part time and 5 days each week?

Answers

Answer: 0.02

Step-by-step explanation:

OpenStudy (judygreeneyes):

Hi - If you are working on this kind of problem, you probably know the formula for the probability of a union of two events. Let's call working part time Event A, and let's call working 5 days a week Event B. Let's look at the information we are given. We are told that 14 people work part time, so that is P(A) = 14/100 - 0.14 . We are told that 80 employees work 5 days a week, so P(B) = 80/100 = .80 . We are given the union (there are 92 employees who work either one or the other), which is the union, P(A U B) = 92/100 = .92 .. The question is asking for the probability of someone working both part time and fll time, which is the intersection of events A and B, or P(A and B). If you recall the formula for the probability of the union, it is

P(A U B) = P(A) +P(B) - P(A and B).

The problem has given us each of these pieces except the intersection, so we can solve for it,

If you plug in P(A U B) = 0.92 and P(A) = 0.14, and P(B) = 0.80, you can solve for P(A and B), which will give you the answer.

I hope this helps you.

Credit: https://questioncove.com/updates/5734d282e4b06d54e1496ac8

Answer:

The probability that a randomly selected employee works both part time and 5 days each week is 0.02

Step-by-step explanation:

What is probability?

Probability is a branch of math which deals with finding out the likelihood of the occurrence of an event.

The total employees =100

Let A= Employees who work part time = 14

and B = Employees who work 5 days each week = 80

Then, A∪B= 92

We have to find, P(A∩B)

P(A∪B)=P(A)+P(B)-P(A∩B)

[tex]\frac{92}{100}=\frac{14}{100}+\frac{80}{100}-[/tex]P(A∩B)

0.92=0.14+0.8-P(A∩B)

0.92=0.94-P(A∩B)

P(A∩B)=0.02

Hence, the probability that a randomly selected employee works both part time and 5 days each week is 0.02.

To know more about probability here

https://brainly.com/question/23044118

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Linda needs 6/9 cup of strawberries and 3/4 cup mashed peach for a recipe. She wants to find whether she needs more peaches or strawberries. How can you write 6/9 and 3/4 as a pair of fractions with a common denominator?

Answers

Answer: Smashed Peach i.e.  [tex]\dfrac{27}{36}[/tex]

Step-by-step explanation:

Given

Linda needs [tex]\frac{6}{9}[/tex] cup of strawberries

and [tex]\frac{3}{4}[/tex] cup of mashed peach for a recipe

For two fractions to have the same denominator, take L.C.M. of the denominator

[tex]\Rightarrow \text{L.C.M.(4,9)}=36[/tex]

[tex]\therefore \dfrac{6}{9}=\dfrac{6\times 4}{36}=\dfrac{24}{36}\\\\\Rightarrow \dfrac{3}{4}=\dfrac{3\times 7}{36}=\dfrac{27}{36}[/tex]

Therefore, she needs more mashed peach for the recipe.

solve by factoring
x^2-10=9x

Answers

Answer:

x=10

Step-by-step explanation:

x^2 - 10 - (9x) = 0

x^2 - 9x - 10 = 0

(x - 10) + (x + 1) = 0

x= 10

x = -1

PLEASE HELP THIS IS URGENT>>>>NO LINKS!!

Answers

Answer:

i believe that the answer is c

The mean of data set A is 42. The mean of data set B is 47. The mean absolute deviation (MAD) of both data sets is 2.5. What is the difference of the means?

Answers

Answer:

the difference of the mean in the case of mean absolute deviation is 2.5

Step-by-step explanation:

The computation of the difference of the mean is shown below:

Difference is of

= B - A

= 47 - 42

= 5

Now the difference of the mean is

= 5 ÷ 2.5

= 2.5

Hence, the difference of the mean in the case of mean absolute deviation is 2.5

The same would be relevant

In circle O below AB is a diameter and m

Answers

The measure of arc AC is 40°
Step-by-step explanation:
In any circle the measure of an inscribed angle is one-half the measure of its subtended arc
In circle O
∵ ∠BAC is an inscribed angle subtended by arc BC
∴ m∠BAC = m arc BC
∵ m∠BAC = 70°
- Substitute it in the the expression above
∴ 70 = m arc BC
- Multiply both sides by 2
∴ 140 = m arc BC
∴ The measure of arc BC is 140°
∵ AB is a diameter
- The diameter divides the circle into two equal arcs
∴ m of arc ACB = measure of the circle
- The measure of the circle is 360°
∴ m of arc ACB = (360°)
∴ m of arc ACB = 180°
∵ m arc BC + m arc AC = m arc ACB
∴ 140° + m arc AC = 180°
- Subtract 140 from both sides
∴ m arc AC = 40°
The measure of arc AC is 40°

(1+i)(3-5i) equals what

Answers

Answer:

8-2i

Step-by-step explanation:

11.
Write an inequality to model the situation.

A number exceeds 9.

A. n > 9

B. n < 9

C. n [tex]\geq[/tex] 9

D. n [tex]\leq[/tex] 9

Answers

A would be the correct answer

Your entry level position at the law firm is $34,000 and it increases by 2.5% each year.
A. Write an exponential function to represent this situation.
B. What will your salary be in 5 years? Round your answer to the nearest dollar.

pls I need this I'll give away the rest of my points​

Answers

Answer:

A) [tex]S(n) = 34000(1.025^{n})[/tex]

B) $38,468

Step-by-step explanation

[tex]34000 (1.025^{5}) = 38,467.8792[/tex]

(Will give brainliest)A reflection is applied to triangle ABC according to the rule
(x, y) — (x, -y). Which point will be the top vertex of the
image?
Select one:
(3, 4)
(1,-2)
(-3,-4)
(-1,2)

Answers

Answer:

(-1, 2) will be point A'

Step-by-step explanation:

PLZ HELP IF RIGHT I WILL GIVE A BRAINLIST TO YOU!!!

Evan has a loyalty card good for a discount at his local hardware store. The item he wants to buy is priced at $14, before discount and tax. After the discount, and before tax, the price is $11.76. Find the percent discount.

Answers

Answer:

14 - 11.76 = 2.23

2.24 x 100

14 = 16%

Which of the following equations has a solution x = 4? Select all that apply.
0-2 (32 – 4) = -16
{(100 + 2) = 6
20 - 15x = 6 - 2 (4x + 7)
(90 - 12) +6 = -10

Answers

Answer:

[tex]-2(3x - 4) = -16[/tex] and [tex]20- 15x = 6 - 2(4x + 7)[/tex]

Step-by-step explanation:

Given

[tex]-2(3x - 4) = -16[/tex]

[tex]\frac{1}{2}(10x + 2) = 6[/tex]

[tex]20- 15x = 6 - 2(4x + 7)[/tex]

[tex]\frac{1}{3}(9x - 12) + 6=-10[/tex]

Required

Equations with [tex]x = 4[/tex] as a solution

[tex]-2(3x - 4) = -16[/tex]

Divide both sides by -2

[tex]3x - 4 = 8[/tex]

Add 4 to both sides

[tex]3x - 4 +4= 8+4[/tex]

[tex]3x =12[/tex]

Divide both sides by 3

[tex]x = 4[/tex]

[tex]\frac{1}{2}(10x + 2) = 6[/tex]

Multiply both sides by 2

[tex]10x + 2 = 12[/tex]

Subtract 2 from both sides

[tex]10x + 2 -2= 12-2[/tex]

[tex]10x = 10[/tex]

Divide both sides by 1

[tex]x = 1[/tex]

[tex]20- 15x = 6 - 2(4x + 7)[/tex]

Open bracket

[tex]20 - 15x = 6 - 8x - 14[/tex]

Collect like terms

[tex]8x - 15x = 6 - 14 - 20[/tex]

[tex]-7x = -28[/tex]

Divide both sides by -7

[tex]x = 4[/tex]

[tex]\frac{1}{3}(9x - 12) + 6=-10[/tex]

Subtract 6 from both sides

[tex]\frac{1}{3}(9x - 12) + 6-6=-10-6[/tex]

[tex]\frac{1}{3}(9x - 12) =-16[/tex]

Multiply both sides by 3

[tex]9x - 12 = -48[/tex]

Add 12 to both sides

[tex]9x - 12 +12= -48+12[/tex]

[tex]9x = -36[/tex]

Divide both sides by 4

[tex]x =-4[/tex]

[tex]-2(3x - 4) = -16[/tex] and [tex]20- 15x = 6 - 2(4x + 7)[/tex] have [tex]x = 4[/tex] has a solution

Answer: 1st and 3rd

Step-by-step explanation:

A messenger earns 2640 per year and pays tax at the rate of 10k On a naira how much tax does he pay in the year

Answers

Answer:

264 naira

Step-by-step explanation:

Given that:

Amount earned per year = 2460

Rate of interest paid : 10k per naira earned

Tax paid by messenger per year :

100k = 1 naira

10k = (100/10) = 0.1 naira

Hence 0.1 naira is paid as tax on every naira earned

Total amount paid on 2640 Naira :

Amount paid per naira * total amount earned

(0.1 * 2640) = 264 naira

5 is 5% of what number?​

Answers

Answer:

100

Step-by-step explanation:

1. Given the lines shown here, what are two possible equations for this system of equations?​

Answers

Answer:

i just need help pasing 5th grade can you help by giving me a link so i can get  answers to quistions pls

Step-by-step explanation:

f(x) = 3 and g(x) = -2x + 5
Find f(x) * g(x)

Answers

Answer: -6x + 15

Step-by-step explanation:

f (x) = 3

g (x) = -2x + 5

3 (-2x+5)

= -6x +15

simplify 3^6 X 3 please help i failed the test 3 times (im not that smart lol)

Answers

Answer:

2187

Step-by-step explanation:

[tex]3^{6}[/tex] × 3

729 × 3

2187

Answer:

l maooooooo but ill help

its 2187

Step-by-step explanation:

use pemdas ( parenthasis, exponents, multiplication, division, add, subtract) and do 3^6 first

3x3x3x3x3x3=9x9x9=81x9=729

729x3=2187

Answer this please...........

Answers

okay lets begin with the first part of it which is tan

sinx=p/h -----> some people have  

cosx=b/h ----> curly brown hair  

tanx=p/b -----> through proper brushing

an easy way to remember the ratios ^

we have sin and cos so we can say that the h=41 b= 40 and p is 9

so tan will be [tex]tanA=\frac{9}{40}[/tex]

now csc sec and cot are reciprocals of sin cos and tan

so sinA is 9/41 cscA will be 41/9

cosA is 40/41 secA will be 41/40

tanA is 40/9 cotA will be 40/0

Use a ratio box to solve this problem the ratio of new pens was 4 to 7 in all there were 242 new pens how many new pens were in the box?

Answers

Complete Question

Use a ratio box to solve this problem the ratio of new pens to used pens was 4 to 7 in all there were 242 pens, how many new pens were in the box?

Answer:

88 new pens

Step-by-step explanation:

The ratio of new pens : Old pens = 4:7

Sum of Proportion = 4 + 7 = 11

Total number of pens = 242 pens

The number of new pens is calculated as:

4/11 × 242 pens

= 88 new pens

Therefore, the number of new pens = 88 new pens

Find the equation of the line below. If necessary, use a slash (/) to indicate a
division bar.
(1.4)
10
10
Answer here

Answers

Answer:

y= 4x

Step-by-step explanation:

The points on the line are (3,12)(1,4)

Slope=y2-y1/x2-x1=

4-12/1-3=

-8/-2=

4

Y-intercept= 0

-------------------

Equation: y= 4x

-------------------

Hope it helps...

Have a great day!!!

PLEASSEE HELP MY ASSIGMENT IS ALMOST DUEEE!!! PLEASE HELP MY I WILL GIVE YOU BRAINLEST

Answers

Answer:

ill help you whats the question

Step-by-step explanation:

Answer:

what do we answer I see nothing

Step-by-step explanation:

??

What is your fav? Look down

Answers

y = x² - 12x - 8y = x² - 2×6×x + 36 - 44y = ( x - 6 )² - 44 option 4 is right

3 ... ummm i’m not sure like very possibly 3
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