HELP ME PLZZZ!!!! URGENT!!!​

HELP ME PLZZZ!!!! URGENT!!!

Answers

Answer 1

Answer:

Step-by-step explanation:

Given equation is,

x² + (p + 1)x = 5 - 2p

x² + (p + 1)x - (5 - 2p) = 0

x² + (p + 1)x + (2p - 5) = 0

Properties for the roots of a quadratic equation,

1). Quadratic equation will have two real roots, discriminant will be greater than zero. [(b² - 4ac) > 0]

2). If the equation has exactly one root, discriminant will be zero [(b² - 4ac) = 0]

3). If equation has imaginary roots, discriminant will be less than zero [(b² - 4ac) < 0].

Discriminant of the given equation = [tex](p+1)^2-4(1)(2p-5)[/tex]

For real roots,

[tex](p+1)^2-4(1)(2p-5)>0[/tex]

p² + 2p + 1 - 8p + 20 > 0

p² - 6p + 21 > 0

For all real values of 'p', given equation will be greater than zero.


Related Questions

2/3 (3m-2) -3/4 (8m-2)

Answers

Answer:-4m+1/6

Step-by-step explanation:2/3(3m-2)-3/8(8m-2)

distribute

=(2/3(3m)+(2/3)(-2)+-6+3/2

=2m+-4/3+-6m+3/2

combine like terms:

=2m+-4/3+-6m+3/2

=(2m+-6m)+(-4/3+3/2)

=-4m+1/6

What Percent of 60m is 9m?​

Answers

The answer is 15%

Nope this helped :)
The percent of 60m and 9m is 15%

1. What is (6^1/2 x3/4 simplified?

Answers

Answer:

1/ 6

Step-by-step explanation:

Which equation is equivalent to
1/5x-3=2/3

A 5X-45=3

B 3x - 15=10

C 3x-45 = 10

D X-15 = 10

Answers

Answer:

c) 3x - 45 = 10

Step-by-step explanation:

[tex]\frac{1}{5}x-3=\frac{2}{3}\\\\\frac{1}{5}x-\frac{3*5}{1*5}=\frac{2}{3}\\\\\frac{x-15}{5}=\frac{2}{3}\\[/tex]

Cross multiply,

3*(x - 15) = 2*5

3*x - 3*15 = 10

3x - 45 = 10

Please Help give me an A

Answers

What are your answers? And btw kinda cute

PLEASE HURRY I WILL MARK BRANLIEST

Answers

Answer:

Option c

Step-by-step explanation:

-2x-10=-2(x+5)

Answer:

second is the answer okkkkkkkkkkkkkkkk

Points Y and Z are points of tangency. Find the value of a.

Answers

Answer:

a = 2

Step-by-step explanation:

If Y and Z are points of tangency, then |XY| = |XZ|.

We have

[tex]|XY|=9a^2-30\\|XZ|=3a[/tex]

Domain

[tex]a>0[/tex]

Substitute

[tex]9a^2-30=3a\qquad|\text{subtract}\ 3a\ \text{from both sides}\\\\9a^2-3a-30=0\qquad|\text{divide both sides by 3}\\\\3a^2-a-10=0\\\\3a^2-6a+5a-10=0\\\\3a(a-2)+5(a-2)=0\\\\(a-2)(3a+5)=0\iff a-2=0\ \vee\ 3a+5=0\\\\a-2=0\qquad|\text{add 2 to both sides}\\a=2\\\\3a+5=0\qquad|\text{subtract 5 from both sides}\\3a=-5\qquad|\text{divide both sides by 3}\\a=-\dfrac{5}{3}<0[/tex]

what is 4300x300 if you dont know it just try

Answers

Answer:

1,290,000

Step-by-step explanation:

hecker skills

20. A ticket printer made 450 tickets in 9 minutes. Another ticket printer made tickets for 5
minutes at twice the rate of the first printer.
How many tickets did the second ticket printer make?
A. 4050
B. 1250
C. 810
D.500

Answers

The answer is D 500.

A school has all of the students in grade 8 take a math test. Several samples are taken from the results. Which of the following samples is NOT likely to produce a representative sample of the population?

Answers

917.8
step by step
sisbeuejebusnanakaiajrbrv

Pleaseee help I really dont get it​

Answers

Answer:

1/2

Step-by-step explanation:

find the slope (1,1) and (2,3) do change in y over change in x then simplify

Answer:

2

Step-by-step explanation:

Find 2 easy-to-read points. Points that easy to read are on the intersection of grid lines.

For example, choose (1, 1) and (2, 3).

slope = rise/run

rise = difference in y

run = difference in x

Start at point (1, 1). To go to point (2, 3), first you go up 2 units. The difference in y is 2, so the rise is 2. Then you go 1 unit to the right. The difference in x is 1, so the run is 1.

slope = rise/run = 2/1 = 2

Answer: slope = 2

Solve the equation: 13 + c = 232. What is the value of c?

Answers

Answer:

219

Step-by-step explanation:

Just take 232 minus 13, you get 219

Answer:

219

Step-by-step explanation:

13+c=232

subtract 13 from each side

c=219

hope this helps :)

(C) Write an equation for the amount, a, that Maria makes as a function of the number of hours, h, that she
tutors. Keep in mind that Maria will make $0 for tutoring for 0 hours.

Answers

Answer:

yes

Step-by-step explanation:

yes

I need help quick plssss I’ll give brainliest

Answers

Answer:

64

Step-by-step explanation:


Classify the triangle: a triangle with one right angle and no congruent sides.

Enter your answer

Answers

Answer:

Scalene Traingle

Step-by-step explanation:

Because a scalene triangle has no congruent sides, but can be a right angle (90 degree)!

What the guy above me said is true

Clare has 54$ in her bank account. A store credits her account with a 10$ refund. How much does she now have in the bank?​

Answers

Clare now has $64 in her bank account.

54 + 10 = 64

how do you find the area of a right triangle if you only have the base

Answers

Step-by-step explanation:

You can find the area of a right triangle the same as you would any other triangle by using the following formula:

A = (1/2)bh, where A is the area of the triangle, b is the length of the base and h is the height of the triangle; However, with a right triangle, it's much more convenient in finding its area if we utilize the lengths of the two legs (the two sides that are shorter than the longest side, the hypotenuse and that are perpendicular to each other and thus form the right angle of the right triangle), that is, since the two legs of a right triangle are perpendicular to each other, when we treat one leg as the base, then, consequently, we can automatically treat the length of the other leg as the height, and if we initially know the lengths of both legs, then we can then just plug this information directly into the area formula for a triangle to find the area A of the right triangle.

For example: Find the area of a right triangle whose legs have lengths of 3 in. and 4 in.

Make the 4 in. leg the base. Since the two legs of a right triangle are perpendicular to each other, then the length of the other leg is automatically the height of the triangle; therefore, plugging this information into the formula for the area of a triangle, we have:

A = (1/2)bh

= (1/2)(4 in.)(3 in.)

= (1/2)(12 in.²)

A = 6 in.² (note: in.² means square inches)

63° 55°
X =
degrees.

Answers

Answer:

Step-by-step explanation:

The sum of these angles must equal 360 degrees.

x+63+55=360

x+118=360

x=242

Solve the simultaneous equations
2x + 5y = 16
- 2x + 3y = 8

Answers

Answer:

2x+y= -2, x + 2y = 2

x+y=3 , 2x-8y = 19

6x^2+3y^2=12 , x +y = 2

help
pls
(lots of points)

Answers

Answer:

Step-by-step explanation:

b is the independent variable.

m is dependent on b.

If 100 boxes are sold, the money collected is 30·100 = $3,000.

They collected $1530.

$1530 × (1 box)/($30) = 51 boxes sold

Lance is an enthusiastic cyclist.

He uses an app on his phone to track each of his cycling sessions.

Below is shown some information about his last three.


In Lance’s last three cycling sessions.

(i) What was the shortest distance cycled?


(ii) What was the longest time that he cycled for?


(iii) Work out Lance’s cycling time.

Answers

Answer:

17.25 ; 1:01:13 ; 4 hours 47 minutes, 38 seconds

Step-by-step explanation:

From the picture attached :

The shortest distance cycled :

17.25 < 25.80 < 27.42

Hence, shortest distance cycled is : 17.25

Shortest cycling time :

1:01:13 < 1:50:05 < 1:56:20

Hence, shortest distance cycled is : 1:01:13

Total cycling time:

1:01:13 + 1:50:05 + 1:56:20

1 + 1 + 1 = 3 hrs

01 + 50 + 56 = 107 = 107/60 = 1 hr 47 minutes

13 + 05 + 20 = 38 seconds

Total cycling time :

(3 + 1 hr 47 minutes + 38 seconds) = 4 hours 47 minutes, 38 seconds

Find the percent change. Tell whether it is a percent increase or decrease.
from 84 to 63

A. 25% decrease
B. 33% increase
C. 25% increase
D. 33% decrease

Answers

It would probably be A

Write an equation of a like that passes through the points (9,5) and (6,7)

Answers

Answer:

y=-2/3x+11

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(7-5)/(6-9)

m=2/-3

m=-2/3

y-y1=m(x-x1)

y-5=-2/3(x-9)

y=-2/3x+18/3+5

y=-2/3x+6+5

y=-2/3x+11

I tried one and got it wrong so I need help again please ☹️​

Answers

Answer: 45/11

Step-by-step explanation: You would do 5/1 then 9/11 times that which is 45/11

The answer would be 45/11 or as a mixed number 4 1/11


because, you would times 9/11 by 5/1 and that would get 45/11.

help me with this pleas w

Answers

Answer: 8

Step-by-step explanation:

4x8= 32

32x8= 256

256x8= 2048

If the diameter of a circular pool is 15 ft, then what is the radius of the pool?
answer choices :
30 ft
15 ft
7.5 ft
5 ft

Answers

7.5 because the radius is half the diameter

how would i do both of these, show work pls

Answers

Answer:

-12.5%

-14.29%

Step-by-step explanation:

For #2:

Original price is $2.00, that price decreased by $0.25 is $1.75. First figure out what $0.25 out of $2.00 is as a percent:

0.25/2.00 = 0.125 = 12.5%

Then, since the price DECREASED by $0.25, the percent would be negative.

For #4:

Original price is $3.50, that price decreased by $0.50 is $3.00. Like #2, you need to figure out what $0.50 out of $3.50 is as a percent:

0.50/3.50 = 0.1429 = 14.29%

Then, since the price DECREASED by $0.50, the percent would be negative.

Un rectángulo de 72 metros cuadrados de área y 18 m de base ¿Cuánto mide de altura?

Answers

Answer:

Step-by-step explanation:

área = base multiplicada por altura

72 m² = 18 m × altura

Altura = 72/18 = 4 m

Sandy has a 10% discount off the total price before tax is added for Larry's Lunch Place. It
the cost of the meal is $18.50,
1. What is the cost of the meal after the discount? (WE DID THIS IN CLASS-copy from
classwork)

Answers

16.65 (explanation) i used a calculator. hope this helps you!

PLS HELP ASAP I ONLY GOT 15 MIN LEFTTT

Answers

Answer: b

Step-by-step explanation:

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