What is the discrimination of the quadratic equation 8x^2-2x-1=0

Answer: x=[tex]\frac{U}{(k-1)}[/tex]

Step-by-step explanation:

Isolate x from xk-x that is, factorize x and you have U=x(k-1)

Then divide both sides with (k-1) and you get [tex]x=\frac{U}{(k-1)}[/tex]

Answer:

Step-by-step explanation:

9

Answer:

The answer is 36

Step-by-step explanation:

Times the 6 to get the area

Answer:

[See Below]

Step-by-step explanation:

[tex]Hey~There![/tex]

________________________

➜ Solve:

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So based on our work above we can conclude that the equation is equal because when solve it equals [tex]1[/tex], making [tex]1=1[/tex].

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[tex]Hope~this~helps~Mate!\\-Your~Friendly~Answerer,~Shane[/tex] ヅ

Answer: 2⁻²

Step-by-step explanation:

probably

Answer:

Step-by-step explanation:

If one cleaning company's cost can be calculated by the expression 75 + 50x, where x is the amount of hours they spend cleaning and another cleaning company's cost can be calculated using the expression 50 + 75x, then to calculate how long each company will have to clean to cost the same amount, we will equate both expression of the company cost and solve for x as shown;

On equating:

75 + 50x,  =  75x + 50

collect like terms'

50x-75x = 50-75

-25x = -25

divide both sides by -25

-25x/-25 = -25/-25

x = 1

hence the number of hours each company will have to clean to cost the same amount is 1 hour

Answer:

ITS A

Step-by-step explanation:

The number line that will represent the absolute value will be-

the distance from negative 3 to 0 is labeled 3.

The absolute value of a number is the magnitude of number. Absolute value describes the distance from zero that a number is on the number line, without considering direction.

We have a graph represents the absolute value of –3.

For a number [x], such that [x] < 0, the absolute value would be -

v[a] = -x

So, for x = -3, the absolute value would be 3.

The number line that will represent the absolute value will be -

The distance from negative 3 to 0 is labeled 3.

Therefore, the number line that will represent the absolute value will be-

the distance from negative 3 to 0 is labeled 3.

To solve more questions on number line, visit the link below-

https://brainly.com/question/24402764

#SPJ2

Using a linear function, it is found that:

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

A linear function modeling the height after t seconds has the following format:

[tex]h(t) = at + h(0)[/tex]

In which:

[tex]h(t) = -4.8t + 13[/tex]

Thus:

[tex]h(t) = -4.8t + 13[/tex]

[tex]1 = -4.8t + 13[/tex]

[tex]-4.8t + 13 = 1[/tex]

[tex]4.8t = 12[/tex]

[tex]t = \frac{12}{4.8}[/tex]

[tex]t = 2.5[/tex]

It takes 2.5 seconds for the acorn to be 1 foot above the ground.

A similar problem is given at https://brainly.com/question/22881900

Answer:

  B = (-1, 4)

Step-by-step explanation:

M = (A+B)/2

2M -A = B . . . . solve for B

__

B = 2(0, 3) -(1, 2) = (2·0 -1, 2·3 -2)

B = (-1, 4)

Answer:

(2x-4) + 10

Step-by-step explanation:

Answer:

QT = 21

Step-by-step explanation:

Because the left section is technically just a extension of the right triangle, the two triangles (PRQ and SRT) are similar, so the ratio between the sides will be similar as well.

The small triangle (SRT) has a ratio of 8/7 between its top side SR (40) and its bottom side TR (35). This means that the top and bottom side of the triangle PRQ will have the same ratio, and since we already known PR (24+40), we can write an equation to solve for QR:

[tex]\frac{SR}{TR} =\frac{PR}{QR} \\\\\\frac{40}{35}=\frac{64}{?}[/tex]

[tex]\frac{8}{7} =\frac{64}{?}[/tex]

64/8=8

This means so get our unknow length, we will need to multiply 7 by 8.

7*8=56

[tex]\frac{8}{7} =\frac{64}{56}[/tex]

This means that the side QR is 56, and since we know TR is 35, we simply need to subtract 35 from 56 to find QT: 56-35= 21

PS and QT also have the same ratio: 24/21 = 8/7 so we know that this is correct.

Hope this helped!

Answer:

0.7 hours

Step-by-step explanation:

The computation of the number of hours is shown below:

As we know that

Time = Distance ÷ speed

where,

Distance is

= 27 miles × 0.4

= 10.8 miles

ANd, the speed is 16 miles per hour

So, the number of hours is

= 10.8 miles ÷ 16 miles per hour

= 0.675 hours

= 0.7 hours

Hence, the number of hours is 0.7 hours

Answer:

0.7 hours

Step-by-step explanation:

Answer: 5

Step-by-step explanation:

Answer:

(12 + 22 - 6) - 14 - 22 = ?

Step-by-step explanation:

Since it's in parenthesis, you must do 12 + 22 - 6 first. that will get you to:

28

now that you have found that answer, you can do the rest like this:

28 - 14 - 22

once you do that, you will have a finishing answer of:

-8

Answer:

The correct options are;

3) f(1/2·x)

5) f(2/3·x)

Step-by-step explanation:

The given parameter is presented here as follows;

f(x) = x

Therefore;

f(x) = y = x

Comparing with the general equation for a straight line, y = m·x + c, we have;

For y = x, m = 1

∴ The slope = 1

1) For f(3/2·x) = y = 3/2·x, the slope, m = 3/2 which is a steeper slope than m=1  and therefore a has more increase in y than in x values or has a vertical stretch rather than a horizontal stretch

2) For f(x + 2) = y = x + 2, the slope, m = 1 which gives an equal slope of m = 1 to the slope in the question, f(x) = x, resulting in no change in stretch

3) For f(1/2·x) = y = 1/2·x, the slope, m = 1/2 which is a gentler slope slope than m=1  as y increase half unit, for each unit increase in x and the function is horizontally stretched

4) For f(x - 3/2) = y = x - 3/2, the slope, m = 1 which gives an equal slope of m = 1 to the slope in the question, f(x) = x, resulting in no change in stretch

5) For f(2/3·x) = y = 2/3·x, the slope, m = 2/3 which is a gentler slope slope than m = 1  as y increase 2/3 unit, for each unit increase in x and the function is horizontally stretched.

Answer:

C, F

Step-by-step explanation:

i took the questions

Answer:

120

Step-by-step explanation:

180 subtract 60 equals 120

Answer:

7=7

Step-by-step explanation:

Answer:

X^2+11x+28

Step-by-step explanation:

FOIL = First, Outer, Inner, Last

First: x times x= x^2

Outer: x times 7= 7x

Inner: 4 times x= 4x

Last: 4 times 7= 28

Since outer and inner are both positive you would add togther. Therefore answer is x^2+11x+28

Answer:

16$

Step-by-step explanation:

$64/40packs=$1.6 per pack

1.6 × 10 packs =16$

Answer:

382.99

Step-by-step explanation:

Answer:

the correct answer is 30

Answer:D

Step-by-step explanation:

Answer:

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex] {b}^{2} = {c}^{2} - {a}^{2} [/tex]

[tex] {b}^{2} = {26}^{2} - {10}^{2} [/tex]

[tex] {b}^{2} = 676 - 100[/tex]

[tex] {b}^{2} = 576[/tex]

[tex] \sqrt{ {b}^{2} } = \sqrt{576} [/tex]

[tex]b = 24[/tex]

p = 10+10 +24+24

p= 68

Answer: NO

Step-by-step explanation: if the two lines intersect none of the points should be parrelle.

Answer:

No

Step-by-step explanation:

Parrallel means nothing touches it and it is at the same angle as the second line. You already say they touch so No.

IDEK but u fine hml

explanation:

u cute

Answer:

what lol

Step-by-step explanation:

Answer:

Yes, his collection will be complete by the time his grandfather visits

Step-by-step explanation:

Here, we want to know if his collection would be complete by the time his grandfather visits.

From the question;

he has collected 13 different quarters in 2.25 months

At the same rate, x different quarters will be collected in 9 months

Thus, mathematically;

x * 2.25 = 13 * 9

x = (13 * 9)/2.25 = 52

Thus, at this rate he would have collected 52 quarters in 9 months.

Since he has only 50 to collect, it means his collection would be complete by the time his grandfather visits

Answer:

he baked 30 pretzels 8 was salted

Answer:

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