which equation has no real solutions?
a. -2x^2=-168
b. 4x^2+76=32
c. 25x^2=1
d. 43-x^2=12

Answers

Answer 1

Answer:

[tex]B. 4x^2+76=32[/tex]

Step-by-step explanation:

[tex]In ~ option~ B[/tex]

[tex]4x^2+76=32\\[/tex]

[tex]4x^2=-76+32[/tex]

[tex]4x^2=-44[/tex]

[tex]x^2=-44/4=-11[/tex]

[tex]x^2=-11[/tex]

A square of any real number can't be a negative integer.

So, Option B is your answer

[tex]--------------[/tex]

hope it helps..

have a great day!!


Related Questions

The principal P is borrowed at a simple interest rate r for a period of time t. Find the​ loan's future value​ A, or the total amount due at time t. Round answers to the nearest cent. P=$2000, r=%6, T=6 years

Answers

Answer:

$2720

Step-by-step explanation:

Given data

Principal=$2000

r= %6

T= 6 years

The expression for the final amount is

A= P(1+rt)

A=2000(1+0.06*6)

A=2000(1+0.36)

A=2000*1.36

A=2720

Hence the amount is $2720

what is a irrational number minus a irrational number?

Answers

Answer:

They won't both be rational but that's about it. If one is rational and the other is not then the result is certainly irrational. Subtracting two irrational numbers might produce a rational value but it might also not. Consider: a=1+2–√, b=2–√ and a=3–√, b=2–√.

Step-by-step explanation:

Answer:

Rational number minus irrational number will result in an irrational number respectively : 2 - √3 is an irrational number. And it's consequent results [ Addition ] will also result the same : Aslike : 2 + √3 is also an irrational number. If you dig deep into the question it is similar to the basic odd minus odd or even minus even.

Hope this helps <3

Crowned Brainly and will have 10 points. EMERGENCY!

Answers

Answer:

324ft^2

Step-by-step explanation:

rectangle: 22ft X 12ft = 264ft^2

trapazoid: 1/2(22+8)4 = 60ft^2

264 + 60 = 324ft^2

hope this helped!! :D

tell me if you need further explaination!

When n = 4, which of the expressions below will be greater than 20? Select all that apply.
A) n2+6n÷3
B) 12n –(6n+3)
C) n2–6
D) 4(n+6) –3n

Answers

B. 12n - (6n+3) = 21
D. 4(n+6) - 3n = 28

What expression is equivalent to -2 (5x - 4) + 13x

Answers

What expression is equivalent to -2 (5x - 4) + 13x

=3x+8

Can someone summarize this for me please?

Answers

Answer:

0 is 16 1 is 13 2 is 17 that's it final answer

Am I crazy or did we always press shift two to do the at sign? Because I swear I remember it used to be command two not shift.

Answers

Answer:

No, I'm pretty sure it's always been shift lol.

Step-by-step explanation:

In order to use the at sign, your supposed to press Shift + 2 which will give you the at symbol. Sometimes, what you remembered was because either your computer has switched languages, or just a bug which could be fixed after an update.

A box plot is shown below what is the median and q3 of the data set represented on the plot median=30;q3=44

Answers

The required boxplot isn't attached, an hypothetical solution is given which could be applied to solve your actual task.

Answer:

Kindly check explanation

Step-by-step explanation:

The median of a dataset plotted on a box and whisker plot can be obtained directly from the plot as the point where a vertical line splits the box. The line inside the box gives the median of the data. The Q3 value which is the upper quartile is depicted on the box and whisker plot as the endpoint of the box. The endpoint of the box gives the upper quartile value for the dataset.

In the scenario above, the median = 29

The upper quartile = 38

14523 round to nearest 10



Answers

Answer:

14520

Step-by-step explanation:

14520................

A 23.9 foot tall streetlight casts a shadow that is 17.7 feet long. How long is the shadow cast by a nearby parking meter that is 3.6 feet high?

Answers

Answer:

2.67 feet long

Step-by-step explanation:

Create a proportion where x is the length of the parking meter's shadow:

[tex]\frac{23.9}{17.7}[/tex] = [tex]\frac{3.6}{x}[/tex]

Cross multiply and solve for x:

23.9x = 63.72

x = 2.67

So, the parking meter's shadow is approximately 2.67 feet long

Will the product of two numbers with opposite signs have a negative or positive answer?​

Answers

Answer:

The product of two integers of opposite signs is equal to the additive inverse of the product of their absolute values.

Step-by-step explanation:

A DVD player manufacturer shipped 960 DVD players last month. According to the manufacturers records, 5 out of every 24 players were repaired during the first year of ownership. How many of the 960 DVD players were repaired in the first year?


a: 40


b: 120


C: 192


D: 200

Answers

Answer:

D: 200

Step-by-step explanation:

Given that

The DVD player shipped 960 players last month

There is a record that out of every 24 players, the 5 would be the repaired

So we need to find the number of DVD players were repaired in this 960 players

So

= 960 × 5 ÷ 24

= 200 players

Hence, the option is d.

A sociedade brasileira de pediatria recomenda limitar o tempo máximo de telas e jogos de videogames a três horas por dia, para adolescentes com idades entrar 11 e 18 anos Este tempo máximo, se usado todos os dias, representa, dos 11 aos 18 anos, um total de horas que equivale a A) 1 ano B) 3 anos C) 6 anos D) 7 anos E) 8 anos

Answers

Responder:

A) 1 ano

Explicação passo a passo:

Tempo máximo de tela = 3 horas / dia

Número de anos entre 11 e 18 anos = 8 anos

Vamos calcular o número de tempo de tela em um ano:

Número de dias em um ano = 365

Horas de uso em um ano:

3 horas / dia * 365 dias = 1.095 horas

Horas de uso em 8 anos:

1.095 horas * 8 = 8.760 horas

Convertendo o número de horas em anos:

Número de horas em um ano:

24 horas * 365 dias = 8760 horas por ano

Anos de tempo na tela:

Número de horas em 8 anos / número de horas em um ano

8760/8760 = 1 ano

The price of an item has been reduced by 35%. The original price was $17.

Find the price now

Answers

17 - (35/100x17)
Then just solve the equation
Hope it does help

Sue and Bill share a 16-ounce box of cereal. By the end of the week, Sue has eaten 5 8 of the box, and Bill has eaten 1 4 of the box of cereal. How many ounces are left in the box?

Answers

Answer: 2 ounce

Step-by-step explanation:

Given

16 ounce of the box is shared by Sue and Bill

Sue has eaten [tex]\frac{5}{8}[/tex] of the box

Bill has eaten [tex]\frac{1}{4}[/tex] of the box

total cereal eaten by them is

[tex]\Rightarrow \dfrac{5}{8}+\dfrac{1}{4}=\dfrac{5}{8}+\dfrac{2}{8}\\\\\Rightarrow \dfrac{7}{8}[/tex]

So, they have eaten this much of the box. Amount left in the box is

[tex]\Rightarrow 1-\dfrac{7}{8}\\\\\Rightarrow \dfrac{1}{8}[/tex]

In ounce it is

[tex]\Rightarrow 16\times \dfrac{1}{8}\\\\\Rightarrow 2\ \text{ounce}[/tex]

Find the mean of the data.


8, 12, 19, 13, 15, 12, 17, 16


The mean is
.

Answers

Answer:

The mean is 14

Step-by-step explanation:

add all of the numbers and divide by 8

The mean is 14
Because you add all the numbers then divided it by how many numbers there are

james says 5/5 is greater than 9/10 is james correct explain

Answers

Answer:

James is correct because 5/5 is 1 while 9/10 is 0.9. 1 is greater than 0.9 by 0.1 and that's why James is correct.

Answer:

Yes.

Step-by-step explanation:

5/5 = 1.

9/10 = 0.9 < 1.

what is the y intercept of . y = ½x -5

Answers

Answer: (0, 10) or 10

Step-by-step explanation:

plug 0 into y

(0) = 1/2x - 5

1/2x - 5 = 0

      + 5 + 5

1/2x = 5

* 2    * 2

x = 10

What is the measure of the smallest angle in the
diagram?
15°
299
32°
45°

Answers

Answer:

15

Step-by-step explanation:

it all comes down to 7x-1

then set that equal to 106 so it looks like 7x - 1 =106

106 - 1 = 105

105/7 = x

x = 15

good luck on your test

Answer:

Step-by-step explanation:

NEED HELP! The wind-speed, in miles per hour (mph), was measured every six hours during a day on the Isles od Scilly.

Answers

Answer:

Mean=

36/5=7.2

Median=8

Step-by-step explanation:

mean=add all the numbers/divide by how many

13+12+8+2+1=36

5 numbers altogether hence,

36/5=7.2

median=arrange all numbers and middle term is the median(for odd numbers only)

13,12,8,2,1

Hence,8 is the middle term

Hope this helped xx

A.y=-x+0.5
B.y=-x-0.5
C.y=x+0.5
D.y=x-0.5

Answers

Answer:

D

Step-by-step explanation:

the correct answer is D. Y=x-0.5

1. F(-5)=2x+1
2. F(-4)=2x+1
3. F(1)=2x+1
4. F(3)=2x+1
5. F(5)=2x+1

Answers

Answer:

1. F(-5) = -9

2. F(-4) = -7

3. F(1) = 3

4. F(3) = 7

5. F(5) = 11

Step-by-step explanation:

For each problem, F(x) is replaced with x.

An example is F(-5) = 2x + 1 (your first question).

To solve this, you replace x with -5.

This creates F(-5) = 2(-5) +1

We just simplify by multiplying -5 by 2 and then adding 1.

-5 times 2 equals -10. -10 plus 1 equals -9.

Your final answer for this example problem would be F(-5) = -9.

This applies to all problems as such -- F(x) where x inside the parentheses replaces all x values in the equation.

Hope this helped!!

what is this can someone please help ?

Answers

Answer:

The answer is most likely A

Hope this helps if t does please consider giving brainliest

Cya on the next one!

Step-by-step explanation:

what is 2*3*4*5*6 uh i need more characters

Answers

Answer:

720

hope this helps

have a good day :)

Step-by-step explanation:

Answer:  720

Step-by-step explanation:

2*3 is 6

6*4 is 24

24*5 = 120

120*6=720

hope this helps ^_^

Create a data set with at least 7 values so that the mean is 20.
plz no bot if bot i will kill 50 point

Answers

Answer:

I cant remember this

Step-by-step explanation:

i cant remember

Answer:

Hello! answer: 45, 20, 15, 11, 36, 8, and 5

Step-by-step explanation:

Data set I created: 45, 20, 15, 11, 36, 8, and 5

It doesnt matter what the data set is as long as it has 7 numbers added together that equals 140 because 140 ÷ 7 = 20 45 + 20 + 15 + 11 + 36 + 8 + 5 = 140 then divide by how many numbers are in the data set and 140 ÷ 7 = 20 Hope that helps

Solve the equation: 7(x + 8) = 49​

Answers

Answer:

-1

Step-by-step explanation:

1.)Reorder the terms:

7(8 + x) = 49

(8 * 7 + x * 7) = 49

(56 + 7x) = 49

2.)Solving

56 + 7x = 49

3.)Solving for variable 'x'.

4.)Move all terms containing x to the left, all other terms to the right.

5.)Add '-56' to each side of the equation.

56 + -56 + 7x = 49 + -56

6.)Combine like terms: 56 + -56 = 0

0 + 7x = 49 + -56

7x = 49 + -56

7.)Combine like terms: 49 + -56 = -7

7x = -7

8.)Divide each side by '7'.

x = -1

9.)Simplifying

x = -1

Hope this helps

plz like and brainy

What’s the answer to this?

Answers

Answer

Where is the graph?

Step-by-step explanation:

√(4²×49)

__________________________________________

Answers

Hopes this helps:

Answer: 28

Please mark as brainlist

Usted esta tratando de manejar una inversion con un valor actual de $ 10,000 dentro de 10 años al 5% con acumulación anual. ¿ Cuanto necesita invertir?

Answers

Answer:

$6,139.1

Step-by-step explanation:

Using the compound interest formula;

A = P(1+r)^t

P is the amount invested

A is the amount = $10000

r is the rate = 5%

t is the time = 10years

10000 = P(1+0.05)^10

10000 = P(1.05)^10

10,000 = P(1.6289)

Swap

P(1.6289) = 10,000

P = 10,000/1.6289

P = 6,139.1

Hence I need to invest $6,139.1

pls pls pls pls help me i will give brainlist pls pls pls pls pls pls



When creating a coordinate plane, which direction does the y-axis lay?

Group of answer choices


diagnol


none of the above


vetical


horizontal




Which sentence is true about quadrilaterals?

Group of answer choices


All squares are rectangles.


All rectangles are rhombi.


All rectangles are squares.


All rhombi are squares.



What kind of triangle has exactly 2 congruent sides?

Group of answer choices


right


isosceles


scalene


equilateral



What is the name of the quadrilateral that has 1 and only 1 set of parallel sides?

Group of answer choices


trapezoid


square


rectangle


rhombus



Which of the following describes a triangle?

Group of answer choices


only 1 pair of parallel sides


no pairs of parallel sides


3 parallel sides


2 parallel sides

Answers

Answer:

#1 ) Vertical

#2) All rhombi are squares

#3) Isosceles

#4) Trapezoid

#5) No pairs of parallel sides

Hope this helps! Mark me brainliest if I'm right :)

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