-15x²+7x+23=0 i just need the answer of it even it's not correct charr cge na loves​

Answers

Answer 1

Use the quadratic formula where -15 = a, 7 = b, 23 = c:  [tex]\frac{-b +- \sqrt{b^2 - 4ac}}{2a}[/tex]

Plug in the values: [tex]\frac{-7 +- \sqrt{7^2 - 4(-15)(23)}}{2(-15)}[/tex]

And get: [tex]\frac{-7 +- \sqrt{49 +1380}}{-30}[/tex]

Which simplifies to: [tex]\frac{-7 +- \sqrt{1429}}{-30} = (-7 + 37.8021163)/-30 OR (-7 - 37.8021163)/-30 = 30.8021163/30 OR -44.8021163/30[/tex]

Those are approximately 1 and -1.5


Related Questions

how do you find the LCM??

Answers

Look at the multiples of the two numbers and find the lowest one that matches e.g.

7 = 7, 14, 21, 28

4= 4, 8, 12, 16, 20, 24, 28

28 is the LCM of 7 and 4

Answer:

Step-by-step explanation:

one away to find to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number . if the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.

can someone help me please:)

Answers

Answer:

8,710

Step-by-step explanation:

23.4 times 13.9 = 1567.8/0.18 = 8,710.

Let me know if you need any more help. :)

Answer:

b will equal to  1807  

solveeee pleaseeee . thanks xoxo
t-4>-7

Answers

Answer:

t>-3 is the answer. hope this helped!

Step-by-step explanation:

Its simple you add 4 to both sides. t-4+4 > -7+4= t > -3

Which numbers are divisible by 5?

1: 124, 333, 315, 266, 391
2: 135, 205, 330, 275, 365
3:135, 211, 330, 274, 252
4:232, 250, 365, 225, 210​

Answers

Answer:

2. 134, 205, 330, 275, 365

Step-by-step explanation:

All number ending in 0 or 5 can be divisible by 5, besides 0, obviously. So, looking at the options, we can rule out 1, 3 and 4, leaving 2.

Hope this helps :)

i need help and someone quick 5m < ABC=540

Answers

Answer:

Step-by-step explanation:

So abc = 789.0

The graph of a quadratic function, y=x?. is reflected over the x-axis. Which of the following is the equation of the
transformed graph?

Answers

Answer:

x = -y

or

-y = x

Step-by-step explanation:

since you reflect it over the x axis, the y changes to a negative

Answer:

its A on edgy

Step-by-step explanation:

Chloe has 18inches of red licorice.Reid has 6inchex of red licorice. what fraction of a yard of red licorice do Chloe and Reid have together. use numbers pictures or Words to show your thinking​

Answers

Answer:

2/3

Step-by-step explanation:

Chloe = 18inches of red licorice.

Reid = 6inches of red licorice

Total = 18 inches + 6 inches

= 24 inches

what fraction of a yard of red licorice do Chloe and Reid have together

Chloe and Reid have 24 inches altogether

1 yard = 36 inches

Fraction = 24 inches / 36 inches

= 2/3

Write two numbers that multiply to the value on top and add to the value on bottom.
-72
Х
o
+
1

Answers

Answer: -8 and 9
Explanation: -8 x 9 = -72 and -8 + 9 = 1

Avery and Carmen both have summer jobs Avery gets paid $360 every four weeks, and gets paid $480 every six weeks summer break lasts a total of 12 weeks who earn more money during summer break every earns dollars per week Carmen earns dollars per week

Answers

Answer:

Avery earns $1,080 during summer

Avery weekly earnings = $1,080 / 12

= $90

Carmen earns $960 during summer

Carmen weekly earnings = $960/12

= $80

Carmen earns more money during summer break

Step-by-step explanation:

Avery payment = $360 every four weeks

Carmen payment = $480 every six weeks

summer break lasts a total of 12 weeks

Avery pay during summer = Total summer break weeks / 4 weeks × payment per 4 weeks

= 12 / 4 × $360

= 3 × $360

= $1,080

Carmen pay during summer = Total summer break weeks / 6 weeks × payment per 6 weeks

= 12 / 6 × $480

= 2 × $480

= $960

Avery earns $1,080 during summer

Avery weekly earnings = $1,080 / 12

= $90

Carmen earns $960 during summer

Carmen weekly earnings = $960/12

= $80

Carmen earns more money during summer break

Answer:

Step-by-step explanation:

Avery earns $1080 in 12 weeks

Carmen earns $960 in 12 weeks

What are the solutions of this quadratic equation?
X2– 6x= – 58

Answers

Answer:

Solve the rational equation by combining expressions and isolating the variable

X

.

X

=

2

(

3

x

29

)

X

=

2

(

3

x

29

)

Step-by-step explanation:

Answer:

No real Solutions

Step-by-step explanation:

Step one: The coefficient on -6x is -6. So b= -6

Step two: Add (b/2)^2 to each side. in our case it is 9

x^2-6x+9= -49

Step three: Factor left side

(x-3)^2 = -49

Step four: take the square root

x-3 = ±√-49

Step five: add 3 to both sides

x = 3 ± √-49

So there is no real solutions

Which equation correctly applies the distributive property?


​−2.5⋅(4⋅1.045)=(−2.5⋅4)⋅1.045​

​50+1.015=(50⋅1)+(50⋅0.01)+(50⋅0.005)​

​−1.2⋅0.57⋅0.5=−1.2⋅0.5⋅0.57​

​(0.5⋅0.5)+(0.5⋅0.3)+(0.5⋅0.2)=0.5⋅(0.5+0.3+0.2)

Answers

Answer:

the last one

Step-by-step explanation:

In the last one, it takes all of the numbers in the one parentheses and distributes it to the 0.5.

Look at the picture. (sorry for the messy writing)

Answer:

last one

Step-by-step explanation: i did the quiz

Find the square root of [tex]\sqrt -36[/tex]

Answers

This can’t be done because you can not find the square roots of negatives! Hope this helps <3
i believe it’s i square root of 6

How many hours are in 17 years? Write your answer in scientific notations with 3 sig figs.

Sig figs are: are the number of digits in a value, often a measurement, that contributes to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit. Calculate the number of significant figures for an assortment of numbers.

Answers

Answer:

1.49 x [tex]10^{5}[/tex] hours

Step-by-step explanation:

1 day=24hours

1 year=365 days

365days=24 x 365=8760hours

17 years

= 8760hours x 17

=148920hours

=1.4892 x [tex]10^{5}[/tex]

= 1.49 x [tex]10^{5}[/tex] hours

Answer:

1.49 x  hours

Step-by-step explanation:

1 day=24hours

1 year=365 days

365days=24 x 365=8760hours

17 years

= 8760hours x 17

=148920hours

=1.4892 x

= 1.49 x  hours

The formula K= C + 273 is used to
convert temperatures from degrees
Celsius to Kelvin. Solve this formula
for C.

Answers

C = K - 273
Subtract 273 from both sides
273 cancels on right side

Answer:

c = k - 273

Step-by-step explanation:

solve for c: k = c + 273

flip the equation: c + 273 = k

add -273 to both sides: c + 273 + -273 = k + -273

answer: c = k - 273

Fill in the table with the rule y = 2x-2 X: -3, -2, -1, 0, 1, 2, 3, 4 Y: _, _, _, _, _, _, _, _.​

Answers

Answer:

-8, -6, -4, -2, 0, 2, 4, 6

Step-by-step explanation:

What is the distance between the points (19,-9) and (-5,-2)?

Answers

Answer:

look at image attached, hope this helps :)

i need one to solve this please
Given sin A = and cos B = where A and B are both acute,
the exact value of cos(A - B)

Answers

I’m not really so sure i’m sooo sorry but i think it is A

Solve the equation below.

3+X= -8

Answers

Answer:

x = -11

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other.

First, subtract 3 from both sides of the equation:

3 + x = -8

x + 3 (-3) = -8 (-3)

x = -8 - 3

Simplify:

x = -8 - 3

x = -11

x = -11 is your answer.

~

The answer is -11. If you +8 to -8 it would cancel out and since you added +8 to that side you have to add +8 to 3 which would make X -11.

Which one I'll give stars or points

Answers

Answer:

the answer is B

Step-by-step explanation:

if the temperature is 50 degrees Fahrenheit what is the temperature in celsius

Answers

Answer:

10.00 °C

Step-by-step explanation:

Answer:

50 degrees Fahrenheit is 10 degrees Celsius

Step-by-step explanation:

(50°F − 32) × 5/9 = 10°C

NEEDDDD HELP WILL MARK BRAINLIEST

Answers

Answer:

d hopes this helps'

Step-by-step explanation:

Answer:

A (the first one)

Step-by-step explanation:

If m27 = 55°, which of the following statements are true? Select all that apply.
2
3
4
5/6
8
A m26 = 55°
B
m25 = 135°
Cm21 + 24 = 250°
Dm21 + m26 = m 27+ m24

Answers

Answer:

2, 3 , 5/6, b

Step-by-step explanation:

What is the definition of liquidity?
ERRE
how difficult it is to maximize returns on investments
how much money someone has in a savings account
how easily an investment can be exchanged for cash
how much income someone has to invest each year

Answers

Answer: The answer is the third option (How easily an investment can be exchanged for cash)

Step-by-step explanation: I got 100% on this quiz on Edge, I’m 3 weeks late to answering this, but I hope It helps somebody :)

Answer:

C. How easily an investment can be exchanged for cash.

Step-by-step explanation:

A backpack costs $18 and has a 7 percent tax. How much will Sheila have to pay for the backpack after tax?

Answers

Answer: 19.26

Step-by-step explanation: 7% is $1.26, so just add 1.26 and 18.

Answer:

19.36 dollars is the answer

Step-by-step explanation:

The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $4 and each adult ticket sells for $8.50. The auditorium can hold at most 79 people. The drama club must make no less than $460 from ticket sales to cover the show's costs. If 53 student tickets were sold, determine the minimum number of adult tickets that the drama club must sell in order to meet the show's expenses. If there are no possible solutions, submit an empty answer.

Answers

Answer:

There is no way.

Step-by-step explanation:

4 x 53 = 212.

460 - 212 = 248.

The mininmum adult tickets you would need is 29 but that would go over the capacity

pls help ill give brainliest to first answer

Answers

Answer:

bahahahhahahahahahah hello

hi i just need to answer 2 questions so i can ask something again

Donner un encadrement d’amplitude 10^-p des réels donner, l’entier p étant précisée pour chaque cas

Answers

I do not understand because it’s not in English
what is this i really don’t get anything

You start at (10, 1). You move down 1 unit and left 7 units. Where do you end?

Answers

Translation in right or left causes the x coordinate to change while translation in up or down causes the y coordinate to change.

Moving left or down causes the coordinates to be going negative.

Moving right or up causes the coordinates to be positive.

Original point (10, 1).

Down 1 unit:

(10, 1 - 1) = (10, 0)

Left 7 units:

(10 - 7, 0) = (3, 0)

You end at (3, 0)

a=4, b=2 and c=-3
who wanna tell me the answer lol my Photomath won’t tell me

Answers

Answer:

-23

Step-by-step explanation:

Answer:

-23

Step-by-step explanation:

Just plug in the values of the variables into the expression. You'll get -4(10)/2 - 3. That equals -20 - 3, or -23.


[tex] |3x - 6| + 3 < 15[/tex]
Solve each inequality. Graph the solution.​

Answers

i can’t graph it, but this is how you would simplify it:

|3x-6|+3<15
(subtracting is really adding a negative):
|3x+-6|+3<15
(absolute value makes it all positive):
3x+6+3<15

3x+9<15 should be the answer, but if it were to act as a ratio this would be the answer:

x+3<5
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