Find all values of j for which the quadratic equation has one real solution.
3x² + 5x-j=0
Write your answer as an equality or inequality in terms of j.

Answers

Answer 1

Answer:

x = (-5+/- √(25 + 12j))/6

Step-by-step explanation:

The solution to this question requires the application of quadratic formula


Related Questions

please help me 8x-3+4x+3​

Answers

Answer:

12x

Step-by-step explanation:

please help me 8x-3+4x+3​

8x - 3 + 4x + 3​ =

8x + 4x  - 3 + 3 =

12x

Answer:

12x

Step-by-step explanation:

1. To simplify this expression, we must group like terms.

[tex](8x + 4x) + (-3 + 3)[/tex] [tex]12x + (-3+3)[/tex] [tex]12x[/tex]

Therefore, the answer is 12x.

solve the proportion (someone pls help)

Answers

Answer:

y = 16

Step-by-step explanation:

11y = 2(24 + 4y)

11y = 48 + 8y

3y = 48

   y = 16

Math 8 Question! :)

Four different positive integers have a mean (average) of 100. If the positive difference between the smallest and largest of these integers is as large as possible, determine the average of the other two integers.

Answers

Answer:

2.5

Step-by-step explanation:

"Four different positive integers have a mean (average) of 100"

The total of the 4 numbers is then 4* 100 = 400

"the positive difference between the smallest and largest of these integers is as large as possible"

to get the greatest difference the first 3 numbers must be

1, 2 and 3 which totals 6

the 4th number is then 400 - 6 = 394

the four numbers are 1, 2, 3 and 394

The greatest difference is between 1 and 394

"the average of the other two integers"

(2 + 3)/2 = 2.5

The average of the other two integers is 1.5.

What is the average of the two numbers?

An integer is an whole number. An example of an integer is 20.

If the mean of the four integers is 100. It means that the sum of the integers must be 400. If the integers are 0,1,2, 397. The largest number is 397 and the smallest number is 0. The average of the other two integers is (1 + 2 ) / 2 = 1.5

To learn more about mean, please check: https://brainly.com/question/25842202

X(squared) + 16x +60=0
Solving quadric equations by factorising

Answers

Answer:

x = - 10, x = - 6

Step-by-step explanation:

x² + 16x + 60 = 0

Consider the factors of the constant term (+ 60) which sum to give the coefficient of the x- ter (+ 16)

The factors are + 10 and + 6 , since

10 × 6 = 60 and 10 + 6 = 16 , then

(x + 10)(x + 6) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 10 = 0 ⇒ x = - 10

x + 6 = 0 ⇒ x = - 6

We have x^2 + 16x + 60 = 0
<=> x^2 + 6x + 10x + 60 = 0
<=> x(x+6) + 10(x+6) = 0
<=> (x+10)(x+6) = 0
<=> x+10=0 or x+6=0
<=> x= -10 or x= -6

Ok done. Thank to me:>

Find the distance between the points

a. 3
b. 4
c. 5
d. 6

Answers

Answer:

B. 4

Step-by-step explanation:

HELP pleaseeeeeeeeee

Answers

Answer:

Or is separate

And is together

STAN LOONA FOR A BETTER LIFE OR ELSE U WILL BE SINGLE FOR THE REST OF UR LIFE

Answers

We as we see this question is quite simple

first we find the vocabulary which is in simple text slang and convert it formally to english...

Next we find that this question makes no sense so g'day

The question is very simple.
First look at the equipment

find the measure of each angle indicated

Answers

Answer:

91°

Step-by-step explanation:

The angles are consecutive interior angles (CIA) which add up to 180°.

180 - 89 = 91

Will give brainliest

Answers

See drawing attached below.

Corresponding angles and sides are congruent to each other. Thus,

∠L corresponds to ∠H

∠J corresponds to ∠P

HU corresponds to LO

PO corresponds to JU

LP corresponds to HJ

∠U corresponds to ∠O

Answer:

thanks for the points bye bye for now love u fin and I will

is 6,8,10 a pythagorem theorem? pls help me due rn

Answers

Answer:

Should be

Step-by-step explanation:

Answer: Yes

Step-by-step explanation:

Using the formula a^2+b^2=c^2, take the square of 6 (6x6=36) and 8 (8x8=64) and add them together to get the square of 10 (10x10=100) 64+36 does equal 100. Remember that the biggest number is c and the two sides a and b have to add to get c.

Help me solve this -> g(x) = 2x + 3



g(7)

Answers

Answer:

17

Step-by-step explanation:

g(7) = 2(7) +3

substitution

Cereal is on sale this week. Is it a better buy to get the 10-ounce box for $2.12 or the 14-ounce box for $2.74?

Answers

First you want to know the price for each ounce. So for the 10 ounce box: 2.12 / 10= $0.212 per ounce. Now for the 14 ounce box : 2.74/ 14 = $0.19 per ounce. So the 14 ounce box is cheaper for $2.74 as 0.19<0.21

The 14-ounce box is cheaper at a cost of $2.74 than the 10-ounce box.

What is the division operation?

In mathematics, divides left-hand operands into right-hand operands in the division operation. The primary purpose of the division is to generate equal groupings or to determine how many people are in each category after a fair distribution.

For example 4/2 = 2

First, we have to find the price for each ounce.

So for the 10-ounce box:

⇒ 2.12 / 10

Apply the division operation,

⇒ $0.212 per ounce.

Now for the 14-ounce box:

⇒ 2.74/ 14

Apply the division operation,

⇒ $0.19 per ounce.

Here the cost of the 14-ounce box is less than the 10-ounce box as 0.19 < 0.21

Therefore, the 14-ounce box is cheaper at a cost of $2.74.

To learn more about the division operation click here :

brainly.com/question/25870256

#SPJ2

What is the range of this relation?
(-5,0)
(8,9)
(-10, 2)
(-1, -3)

Answers

Answer:

{0,9,2,-3}

Step-by-step explanation:

the range is all the ys.

these are all in the format (x, y)

Hope this helps.

PS-If it's a multiple choice question, the numbers might not be in the same order. just pick the one with those numbers.

457x64-(163+208x45) + ( 2820÷20)-1802

Answers

Answer:

18064

Step-by-step explanation:

these equations are always in this order:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

To remember this, my teacher told us the phrase; "Please Excuse My Dear Aunt Sally".

Brian invests £7500 into his bank account.
He receives 6% per year compound interest.
How many years will it take for Brian to have more than £10000?

Answers

Answer:

5 years

Step-by-step explanation:

Peter made 19 1/8 cups of chili for the
football game. If 14 3/4 cups of the chili were
eaten, how many cups of chili did Peter have left over
have left over?

Answers

Answer:

4.38, aka 219/50

Step-by-step explanation:

if we conduct 105 hypothesis tests at the 5% level, how many of them would be expected to be statistically significant just by chance alone

Answers

5.25
i think if my calculations r right

helppppppppppp i hv 5 mins

Answers

Answer: 342.5 miles

Step-by-step explanation:

Distance = Speed x Time

Speed(mph) Time(hr)   Distance(miles)

     55        x        3.5        =     192.5

     60         x       2.4        =     150

Total Distance (miles) =        342.5 miles

A rectangular field will be fenced on all four sides. There will also be a line offenses across the field, parallel to the shorter side. If 900 M of fencing are available, what dimensions of the field will produce the maximum area? What is the maximum area?

Answers

Answer:

Pretty sure the dimensions are 125.6 meters by 251.2 meters 31,550.72 square meters.

20 plants were measured and their heights recorded in cm. Here are the heights: b) Draw a fre 8.2 6.5 2.7 19.4 to represe 16 14.1 17.1 14 8 4.9 2.9 15.5 7.3 15 4.4 11.8 13.9 7 10.2 4.6 19.5 7.3 6 . Ол о a) Complete the frequency table. Height, h cm Frequency 0 ​

Answers

The required frequency table as

Heights, h cm      Frequency

0 < h ≤ 5                     5

5 < h ≤  10                   4

10 < h ≤ 15                   6

15 < h ≤ 20                  5

What is the frequency of an observation?

The frequency of a variable value is the number of times it appears in a particular observational series or data.

A variable's frequency is always a positive integer.

Here the heights in the condition of 5 < h ≤  10 appear as 4.

Here the heights in the condition of 10 < h ≤ 15 appear as 6.

Here the heights in the condition of 15 < h ≤ 20 appear as 5.

The required frequency table as

Heights, h cm      Frequency

0 < h ≤ 5                     5

5 < h ≤  10                   4

10 < h ≤ 15                   6

15 < h ≤ 20                  5

Thus, the required frequency table of the given observation is above.

Learn more about the frequency of an observation here:

https://brainly.com/question/5102661

#SPJ2

what number is 5 times greater then 6

Answers

Answer:

if you are talking about 5x6 then the answer would be 30 but if not please clarify :)

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

6x5=30 so I believe the answer to your question to be 30

1.) The graph of y = -7x - 10 is a ______ that shows the ________ to the equation

2.) find the slope a y-intercept of y=(-7x)-10

Slope = ________
y-intercept = _________

Answers

Answer:

Step-by-step explanation:

1.) The graph of y = -7x - 10 is a ______ that shows the ________ to the equation

I'm not sure what kind of response this question is seeking.  I can only write:

1.) The graph of y = -7x - 10 is a linear equation that shows the  ?  slope and y-intercept to the equation

I don't think these are the answer sought, but it's the best I can think of at the moment.

2.) find the slope a y-intercept of y=(-7x)-10

The slope is -7 and the y-intercept is -10.

The weights of 2-pound bags of Best Dog Food are approximately normally distributed with a given mean Mu and standard deviation Sigma. According to the Empirical Rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47. 5% 68% 95% 99. 7%.

Answers

I think it’s 68 percent

Julie has a square-shaped driveway with an area of 256 square feet. What are the dimensions of the driveway?

A. 64ft x 4ft

B . 15ft x 15ft

C. 16ft x 16ft

D. 32ft x 8ft

Answers

Answer:

16ft x 16ft

Step-by-step explanation:

Square shaped, so side lengths are all the same size, so 16ft by 16ft. 256 would also need to end in a 5 to be a product of 15 by 15 but would end in six for 16x16 (5*5 and 6*6 will show last digit of the number)

How would the number of solutions for an equation with two variables differ from the number of solutions for an equation with only one?​

Answers

Answer: An equation with one variable can have no solutions, one solution, or infinitely many solutions. An equation with two variables can have no solutions, one solution, or infinitely many solutions

Step-by-step explanation:

brainliest me

The measure of ones angle of a triangle is 40. The measure of the other two angles are in a ratio of 3:4

Answers

Answer:

40, 60, 80

Step-by-step explanation:

angles are 40, 3x, 4x

40+ 3x + 4x = 180

40 + 7x = 180

7x = 180 - 40

7x = 140

x = 20

so the angles are 40, 60, 80

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!10

Answers

[tex]\huge \bf༆ Answer ༄[/tex]

The slope of the marked line is " Negative "

Lines that make obtuse Angle with positive x - axis have a Negative slope.

[tex]꧁  \:  \large \frak{Eternal \:  Being } \: ꧂[/tex]

there are 50 students in a class and 30 of these students passed their social studies test. what percentage of these students passed their test.

Answers

Answer: 60 %

Step-by-step explanation:

Percentage of students passed the test = (number of students who passed the test / total number of students) x 100

                                                                     = 30 / 50 x 100 % = 60 %

An item is regularly priced at $55 it is now priced at a discount of 65% of the regular price

Answers

Answer:

$19.25

Step-by-step explanation:

Multiply 55 dollars by .65 to get the amount of money that is being dropped. 65% of 55 dollars is 35.75

Now subtract the original amount (55 dollars) by 35.75 dollars to get 19.25 dollars.

An easier way to do this is just by multiplying 55 dollars by the amount or percentage that is left so you multiply 55 by .35 and you will get the same answer.

help me with this one guys......

Answers

Answer:

[tex]7^-^1[/tex]

Step-by-step explanation:

So, when multiplying numbers with exponents that have the same base, all you have to do is combine the exponents.

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