Help me please..........

Answer:

When we have a quadratic equation:

a*x^2 + b*x + c = 0

There is something called the determinant, and this is:

D = b^2 - 4*a*c

If D < 0, then the we will have complex solutions.

In our case, we have

5*x^2 - 10*x + c = 0

Then the determinant is:

D = (-10)^2 - 4*5*c = 100 - 4*5*c

And we want this to be smaller than zero, then let's find the value of c such that the determinant is exactly zero:

D = 0 = 100 - 4*5*c

    4*5*c = 100  

       20*c = 100

            c = 100/20 = 5

As c is multiplicating the negative term in the equation, if c increases, then we will have that D < 0.

This means that c must be larger than 5 if we want to have complex solutions,

c > 5.

I can not represent this in your number line, but this would be represented with a white dot in the five, that extends infinitely to the right, something like the image below:

Answer:

33.2 mpg

Step-by-step explanation:

Answer:

ggggg

Step-by-step explanation:

gfv

Answer:

The missing x = 0.675 m

Step-by-step explanation:

In similar triangles, the corresponding sides are proportion (means their ratios are equal)

In the given figure

∵ The two triangles are similar

∴ Their corresponding sides are proportion

∵ The sides of lengths 1.8 m and x are corresponding sides

∵ The sides of lengths 8.0 m and 3.0 are corresponding sides

∴ [tex]\frac{1.8}{x}[/tex] = [tex]\frac{8.0}{3.0}[/tex]

→ By using cross multiplication

∴ x × 8.0 = 1.8 × 3.0

∴ 8x = 5.4

→ Divide both sides by 8

∵ [tex]\frac{8x}{8}[/tex] = [tex]\frac{5.4}{8}[/tex]

∴ x = 0.675

→ No rounding because there is no digit after the thousandth digit

∴ x = 0.675 m

Answer:

.03

Step-by-step explanation: because milligrams is 10 times as much as centimeters so if thereś .3 milligrams then you divide .3 by 10 and youĺl get .03

Answer:

x^2+y^2-32x+24y+375=0

Step-by-step explanation:

Equation of circle with given centre (h,k) and radius=r is

(x-h)^2+(y-k)^2=r^2

Given centre are=(16, - 12) and radius= 5

So equation of circle=

(x-16)^2+(y- -12)^2=5^2

x^2-32x+256+y^2+24y+144=25

x^2+y^2-32x+24y+375=0

Answer

Answer:

296

Step-by-step explanation:

There are 5 days where the fee was $37 and 2 days where the fee was $42

so simply multiply the given values by the number of days used.

(37*5)+(42*2)

185+84

296

Answer:

5% increase

Step-by-step explanation:

last Summer was 20° , this Summer is 21° so is 1° more so the question is what is the increase 1° of 20

20° is to 100% as

   1° is to ?%

cross multiply

?% *20 =1*100

divide by 20 both sides

?%= 100/20 = 5

Answer:

y = -2x + 13

Step-by-step explanation:

Answer:

Exact Form: -17/8

Decimal Form: -2.125

Mixed Number Form: -2 1/8

Step-by-step explanation:

Answer:

6 : 12

Step-by-step explanation:

sum the parts of the ratio, 1 + 2 = 3 parts

Divide by 3 to find the value of one part of the ratio

18 ÷ 3 = 6 ← value of 1 part of the ratio, thus

2 parts = 2 × 6 = 12

1 : 2 = 6 : 12

The number 18 splitted into a ratio of 1 : 2 is 12 and 6.

A ratio is a comparison between two similar quantities in simplest form.

Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.

In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.

Slitting in the ratio 1 : 2 can be done in this manner,

{1/(1+2)]×18.

= (1/3)×18.

= 6.

And,

{2/(1+2)]×18.

(2/3)×18.

= 12.

learn more about proportion here :

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Answer:

a. 372

b. 708

c. 451

d. 805

e. 965

f. 620

Step-by-step explanation:

Answer:

B ≤ 3.7

Step-by-step explanation:

Total money with Alonso = $21

Cost of Eggs = $2.50

Cost of Avocados in bags of 3 = $5

Let

B = number of bags of avocados that Alonso buys.

The inequality is:

Cost of Eggs + Cost of Avocados in bags of 3 ≤ Total money with Alonso

2.50 + 5B ≤ 21

5B ≤ 21 - 2.50

5B ≤ 18.5

B ≤ 18.5/5

B ≤ 3.7

The number of bags of avocados Alonso bought can be represented by B ≤ 3.7

Answer:

1) The inequality that describes this scenario is 2.50+5B≤21

2) Alonso can afford at most 9 avocados.

Answer:

.309

.34

.4

.46

.97

.98

Step-by-step explanation:

Hope this helped. Do not be shy to give Brainlist.

Answer:

0.4, 0.309, 0.34, 0.46, 0.97, 0.98

Step-by-step explanation:

Answer:

he uses 23 balloons for every 28 events.

9514 1404 393

Answer:

  x = 5

Step-by-step explanation:

These points have the same x-coordinate, so are on the same vertical line:

  x = 5

Answer:

x=12

Step-by-step explanation:

have a good day!

Answer:

12/14 to 18/w

Step-by-step explanation:

the w would equal 21 (incase you needed it) since the unit rate is 1.5

Answer:

w = 20

Step-by-step explanation:

Answer:

A.)

Step-by-step explanation:

I feel like it's A.) because the number sequence above continues to go on due to addition of 6 to each number. And now you are adding 6 to 10n because as stated before your supposed to add 6 to each number to get the answer in the sequence.

Hopefully I helped God bless !

Answer:

70 or 80

Step-by-step explanation:

Answer:

it is 10.3

Step-by-step explanation:

Answer:

I believe the answer is true, please let me know if I am wrong.

Answer:

[tex]Sides= 7\ units[/tex]

Step-by-step explanation:

Given

[tex]Sides= 7\ units[/tex]

[tex]Translation = 3\ units[/tex] (to the right)

Required

Determine the length of one side after translation

It should be noted that when a shape, line, object is being translated by shifting its position, only the position of the shape, line or object changes not its length

This implies that, the length of the sides of the equilateral triangle remain unchanged.

Hence:

[tex]Sides= 7\ units[/tex]

Answer:

17

Step-by-step explanation:

but not for sure

Answer:

2n-4

Step-by-step explanation:

The value of n for the given condition is 2(n - 2).

To simplify means to make anything easier. In mathematics, simplifying an equation, fraction, or problem means taking it and making it simpler. Calculations and problem-solving techniques simplify the issue. By eliminating all common factors from the numerator and denominator and putting the fraction in its simplest/lowest form, we can simplify fractions.

Given equation

(n + 8) + (n − 12) =

n + 8 + n - 12

solving constant separately and variables separately,

2n - 4

the common factor of 2 and 4 is 2

2(n - 2)

Hence the simplified form of an equation is 2(n - 2).

Learn more about simplification;

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Answer:

x = 1 and y = 7

Step-by-step explanation:

First, you substitute the y into the first equation

-5x+2(7x)=9

-5x+14x=9

9x=9

x=1

Then put the x into the equation to find y

This is if you substitute using the second equation

y=7(1)

y=7

5 is d and idk question 5 sorry

Answer:

C

Step-by-step explanation:

y = | x + 2 | − 1 has a vertex at (-2, -1).

y = | x | + 2 has a vertex at (0, 2).

So the graph is translated 2 units right and 3 units up.