HELP ME PLZZZ!!!! URGENT!!!
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.
You pick a card at random. 4 5 6 7 What is P(less than 7)? Write your answer as a fraction or whole number.
Answer:
3/4 is less than 7.
Step-by-step explanation:
There are 4 numbers but there are only 3 less than 7.
The probability P(less than 7) is 3/4.
What is probability?Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
For the given situation,
The cards are numbered as s = {4,5,6,7}
⇒[tex]n(s)=4[/tex]
The event is probability of picking the cards less than 7
Cards less than [tex]7[/tex] , [tex]e=4,5,6[/tex]
⇒[tex]n(e)=3[/tex]
Probability of picking the card is given by [tex]p(e)=\frac{n(e)}{n(s)}[/tex]
On substituting the values,
⇒[tex]p(less than 7)=\frac{3}{4}[/tex]
Thus the probability P(less than 7) is 3/4.
Learn more about probability here
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80 timess 40 plus 60
Answer:
3260 hope i helped u
Step-by-step explanation:
the value of -1 raised to 55 is
Answer:
-1
Step-by-step explanation:
because -1 raised to odd number is -1
Answer:
-1
Step-by-step explanation:
55 is an odd number and you just multiply -1 55 times
8TH GRADE MATH PLEASE HELP
Answer:
∠x = 46°
Step-by-step explanation:
We have triangle = 180° = 18° + ∠x + (180° - 64°)
=> ∠x = 180° - 18° - 116° = 46°
The number of bacteria in a Petri dish increases by 18% every hour. If there were initially 200 bacteria placed in the Petri dish, which function can be used to determine the number of bacteria in the Petri dish in exactly x hours?
Answer:
Step-by-step explanation:
an exponential equation has the form y=ar^x where y=final amount, a=initial amount, r=rate, and x=time, in this case
y=200(1.18)^x
Which of these explanations is the best?
Choose 1 answer:
When a file has an extension, the user knows who created the file.
When a file has an extension, the computer can decide what application to open it in.
When a file has an extension, the computer knows exactly how much memory it needs to
allocate for it
When a file has an extension, users can open files in applications they don't own.
When a file has an extension, the computer is allowed to store additional metadata about it.
Answer:
When a file has an extension, the computer is allowed to store additional metadata about it.
Hope that helped :)
Pleas help I need help
Answer:
i think c just see what the other people say first to make sure
Step-by-step explanation:
how do i find a slope
Answer:
To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points
Answer:
To the find slope in slope-intercept form (y=mx+b) you just find the m of the equation for example: y=4x+8 the 4 is the slope since it is replacing the m
To find the slope in two points (x1,y1) (x2,y2) follow this formula
y2-y1/x2-x1
For example: Find the slope of (4,9) and (9,19)
19-9/9-4 Which is 10/5 simplify: 2
The slope is 2
Step-by-step explanation:
find the measure of side b
Answer:
227in
Step-by-step explanation:
260 * cos(29 degrees) = 227.401
Find the area of the following
triangle:
5.7 cm
4 cm
13 cm
A= [?] cm
Answer:
26 cm
Step-by-step explanation:
To find the area of a triangle, you must use the formula A=1/2xbxh.
For this triangle, the base is 13 and the height is 4. So, multiply the 13 by 4 to get a total of 52, and then divide by 2 to get your final answer of 26.
у = 2х – 6
у = х2 – 4х + 2
free brainliest if you answer this!
can 5 14 inch screws fit in ONE 24 inch wide, 2 inch long hole? pls help asking for a friend
How many inches are in 1 & 2/5 groups of 1 & 2/3 inches? *
The new PS5 costs $500. The only place left to buy it
is at the Best Buy in Washington state. Washington
charges a 6.5% sales tax. How much would you need to
pay for the PS5 in total?
Answer:
they really brought the ps5 in a quiz lol
Step-by-step explanation:
Solve x/-4 > 8
1. x > -2
2. x < -32
3. x < -2
4. x > -32
Answer:
x<-32
Step-by-step explanation:
I hope this helped have a good night
PLS PUT THE SLOPE INTERCEPT FORM OF THIS LINE ILL GIVE BRAINLIEST!!
Answer:
Y=2x+(-1)
Step-by-step explanation:
The slope/m = 2/1 and the Y int.= -1 So for it to be in slope intercept form it would look like this Y=2x+(-1).
Jasmine gets paid $150 each week and $55 for every laptop that she sells. Write and equation that represents her weekly income.
Answer:
If x represents the number of laptops sold and y represents the total weekly income, our equation would be y = 55x + 150
Answer:
Step-by-step explanation:
Every week, the given or set in stone amount of money she receives $150. So automatically, the first part of the equation is 150x, because x represents the number of weeks, and 150 is $150. So for instance, if she works for two weeks, she will earn $300. Anyway, she has an additional amount of money she gets, which is $55 for every laptop she sells. This isn't a set in stone amount of money. She might not always earn the extra $55, because she might not sell a laptop for a certain week. So, the final equation would be 150x+55. Hope this helped :)
Which expression is equivalent to -3(2m - 1) - n?
A) 6m - n - 3
B) 6m - n + 3
C) -6m - n - 3
D) -6m - n + 3
Answer:
D
Step-by-step explanation:
-3(2m-1)-n
open the bracket
-6m+3-n
rearrange
-6m-n+3
Answer:
D) -3(2m -1) -n = -6m-n + 3
Find the length of a rectangle with a perimeter of 200 cm and
breadth 10 cm.
Answer:
2,000
Step-by-step explanation:
take 10×200 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
HELP??? What is the equation of the line in y=mx+b format?
Answer:
y = 1/2x - 1Step-by-step explanation:
To find the slope, you need to find the y-intercept first (or the place the line crosses over the y-line). After you've found the y-intercept (-1), you need to find the next point that the line crosses. This line has a positive slope, so you'll want to look for the next point towards the right. The next point was 1 up and 2 over.
Answer:
y = 2/5x - 1
Step-by-step explanation:
There are a couple of different ways to figure this out, but since you have a graph, the fastest way is to count the slope, or m in the formula, by counting the rise (units up) over run (units to the right), which is 2/5. Then, find the value of b by finding the y-intercept on the graph, or -1.
(4pts)
Show all Work!!!!
1)
The sum of four consecutive integers is -18. What are the four integers?
(Use a let statement)
Answer:
-4.5
Step-by-step explanation:
this the work, -4.5-4.5-4.5-4.5
8th grade math, please help.
Answer:
49
Step-by-step explanation:
180-131
Answer:
45°
Step-by-step explanation:
Here, since m||n, 131°+x=180°
x=180-131
x=49°
Please help with this, I have no clue what it means.
Answer:
LN = 4.326
Step-by-step explanation:
dropping a perpendicular from point k to LM
call that point on line LM, point X
angle KLM = 47 degrees so angle NKL = 28 degrees
sin 47 = KX/8.9
KX = 6.509
angle LKX = 90-47-28 = 15 degrees
tan 15 = XN/6.509
XN = 1.744
cos 47 = XL/8.9
XL = 6.070
XL-XN=LN
LN = 6.070-1.744 = 4.326
ASAP WHO EVER ANSWER THIS QUESTION WILL BE MARKED BRANLIEST URGENT
Answer:
i think its A. . .
Step-by-step explanation:
What is the area of this parallelogram?
364 cm²
143 cm²
91 cm²
52 cm²
Answer:
which parellogram
Step-by-step explanation:
where is photo
Answer:
143cm2
Step-by-step explanation:
I did the quiz :> (K12)
10+8÷2(4+3) simplify the expression using the order of operation
Answer:
truly ez points
Step-by-step explanation:
help me please- the fraction is 5/2.
Answer:
Step-by-step explanation:10.8
Answer:
A 6
Step-by-step explanation
Divide 15 by 5/2 because MN is smaller than JK
6
Molly bought 10 bags of the same dog food. She had a coupon for $5. She sprang a total of$65. How much money was each of bags dog food?
Answer:
$7
Step-by-step explanation:
if she bought 10 bags and had $5 off and she spent $65 it would technically its $70 ÷ 10 = $7 per bag.
Each bag of dog food cost $7.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
We have,
Molly bought 10 bags of the same dog food.
She had a coupon for $5.
and, the amount without coupon is $65.
Then, the total amount is
= 65 + 5
= $70
So, the price per bag is
= 70/ 10
= $7
Learn more about Unitary Method here:
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Given the relation y = x² + 3x + 2, find the outputs for x = -2, -1, 0, 1, and 2.
Complete the table (marking brainliest)
Answer:
3x+6
3x+3
3x+2
3x+3
3x+6
Step-by-step explanation:
1. -2^2 + 3x +2=4+3x+2=6+3x
2. -1^2 + 3x +2=1+3x+2=3+3x
3. 0^2+3x+2=0+3x+2=2+3x
4. 1^2+3x+2=1+3x+2=3+3x
5. 2^2+3x+2=4+3x+2=6+3x
