if the discriminant of an equation is zero which of the folllwing is true of the equation?
Answer: one real solution
Step-by-step explanation:
Step-by-step explanation:
the discriminant of an equation, ax^2 + bx + c= 0 is
b^2 - 4ac
if b^2 - 4ac = 0
the equation will have equal roots therby being perfect
conclusion:
if the discriminant of an equation is zero
the equation will have two rootsthe equation will have one real solutionthe curve of the equation will touch the x-axis at only one pointthe equation will be a perfect squareEvaluate 5(r+12) when r=3.
Answer:
The answer is 75
Step-by-step explanation:
5(3+12)
15+60
75
Answer:
Step-by-step explanation:
5(3+12) = 5×15 = 75
Please help I will give brainliest
Answer:
1. 40 ft
2. 150 bricks
3. 100 ft
Step-by-step explanation:
Answer:
1st place on perimeter is 40
last on perimeter is 100
2nd place on # of bricks is 150
Step-by-step explanation:
200 bricks is 80 square feet, so 200/80 is 2.5. so 2.5 bricks is one square foot, that means that 25 bricks is 10 square feet, 20 is 50, and so on
A rectangle has a length of 6 inches and a width of 8 inches. A square with a side length of 3 was cut out of it. What is the area of the remaining paper
Answer: 39 inch²
Step-by-step explanation:
The rectangle's area was:
= Length * Width
= 6 * 8
= 48 inches²
The square's area is:
= Length * width
= 3 * 3
= 9 inches²
The square was cut out of the rectangle which means the area of the square should be deducted from the rectangle to find out the remaining area.
= 48 - 9
= 39 inch²
Use the discriminant to determine if the following quadratic equations have complex or real solution(s). If an equation has real solution(s), determine the solution(s).
Part A: 4x^2-3x-10=0
part b x^2-14x+49=0
part c g [x]=x^2-8x-20
Part D: h[x]=x^2-9x+36
Part E: 3[x+2]^2+36=0
Can you plzzzzz help me?
Answer:
65 people
Step-by-step explanation:
0 represents the unknown value
0-19= -19
-19+17= -2
63+ the two that were lost during the journey=65
Find the volume of the pyramid, given its slant height. Round them to the nearest tenth please.
Can you help me? I tried but I did not understand and thank you
9514 1404 393
Answer:
4. 1.3 cm³
5. 621.2 mm³
6. 116.5 m³
Step-by-step explanation:
The height to the peak of the pyramid is one side of the right triangle that has its hypotenuse equal to the slant height, and one leg equal to half the base side length. The Pythagorean theorem is used to find the height from the slant height (s) and the base length (b):
h = √(s² -(b/2)²)
The volume is found from the formula ...
V = (1/3)b²h
where b is the base length and h is the height found using the previous formula.
The tedious arithmetic is nicely done using a spreadsheet. Results are attached.
need answer. please help
FIND THE ANGLE OF ELEVATION. PLS HELP. ANSWER IF YOU FOR REAL KNOW THE ANSWER. I WILL MARK U BRAINLEST IF THE ANSWER IS CORRECT
Answer:
46.06
Step-by-step explanation:
the angle from the right triangle is 43.94 so you subtract from 90 and 46.06
Answer:
46 degrees
Step-by-step explanation:
acos(18/25) is 43.95
Subtract that from 90 and round and you get 46 degrees
find the l of this cone
Answer:
l=√261 in
Step-by-step explanation:
l²=(12/2)²+15²
l²=6²+15²
l²=36+225
l²=261
l=√261 in ≈ 16.1555 in
Help it’s a multiple choice
PLEASE HELP ME!! ASAP
Given f(x) = x^2 – 10x + k, and the remainder
when f (x) is divided by x + 2 is 32, then what is
the value of k?
Answer:
Step-by-step explanation:
PLEASE HELP ME!! ASAP
Given f(x) = x^2 – 10x + k, and the remainder
when f (x) is divided by x + 2 is 32, then what is
the value of k?
A broken pottery shard found at an archaeological dig has a curved edge. Find the diameter of the
original plate. (Use the fact that the diameter PR is the perpendicular bisector of chord AB.) If necessary,
enter your answer as a simplified proper fraction or mixed number.
Answer: 18 1/2 inches
Step-by-step explanation:
Applying the segments of chords theorem, the diameter of the original plate is: PR = 18 ⅛ inches.
What is the Segments of Chords Theorem?Based on the segments of chords theorem, the following equation is true:
(AQ)(QB) = (PQ)(QR)
Plug in the values
(9)(9) = (8)(QR)
QR = 81/8
QR = 10 ⅛ inches.
Diameter PR = QR + PQ
Diameter PR = 10 ⅛ + 8
Diameter PR = 18 ⅛
Learn more about the segments of chords theorem on:
https://brainly.com/question/13950364
#SPJ2
Dyami lives x miles from the school. Karla lives 2/3 further than that from the school.
Answer:
Where is the schools coordinates subtract two thirds from whatever the schools coordinates are and you will have your answer for Dyami
Step-by-step explanation:
Answer:
it's true
Step-by-step explanation:
You are not gaving the exact question
sebuah pesawat penyelam terbang dengan kecepatan 55.0 m/s dengan ketinggian konatan h 400m dengann gaya gravitasi 9.8 m/s kuadrat.tentukan sudut elevasi !!
help
Answer:
Step-by-step explanation:
Hand d hands. I Nnendjejw ndndnenend nsdnd nsrjer
What is the Value of X in the triange
Answer:
x = 65
Step-by-step explanation:
The sum of the angles of a triangle add to 180
25+ 2x+25 = 180
Combine like terms
50+2x = 180
Subtract 50 from each side
2x = 180-50
2x =130
Divide by 2
2x/2 =130/2
x =65
please help it’s on of my last questions
Determine whether you can construct many, one, or no triangle(s) with each description.
Help me on my homework pls
Answer:
point a would be (-4,3) point b would be (0,5) point c would be (2,1)
PLEASE HELP! 20 POINTS
The speed of the current in a river is 6mph. A ferry operator who works that part of the river is looking to buy a new boat. Every day his route takes him 22.5 miles each way against the current and back to his dock and he needs to make this trip in a total of 9 hours. He had a boat in mind but he can only test it on a lake where there is no current. How fast must the boat go on the lake in order to serve his needs? PLEASE SHOW ALL WORK
Answer:
1,215 i think please be right
stuck on this hope someone can help me
Answer:
all are correct except the third one. the formula for that one should be v = a³ since it's a cube
Step-by-step explanation:
plss helpppp !!!!! it’s urgent
Answer:
55° is x
Step-by-step explanation:
Angle sum property of triangle = 180°
180 - 70 = 110
As it is an isosceles triangle, two sides and of course angles will be same.
So, 110 ÷ 2 = 55.
So, the two remaining angles will be 55°
Hope it helps!!!
help please its math and i dont knon how to solve them
Answer:
1. It is doubled
I can't help with paragraph explanation as it is something that you should write
2. The change in the area is that is 16 times more
No explanation as it is something that you should write
3. The change in area is that it is 9 times less
I can't help with paragraph explanation as it is something that you should write
Step-by-step explanation:
20 + 16 = 36
40 + 32 = 72
72/36 = 2
Hence it is doubled
(5 x 6) / 2 = 15
(20 x 24) / 2 = 240
240/15 = 16
It is 16 times more
15 x 21 = 315
5 x 7 .= 35
315/35 = 9
x = 5
x + y = 12
help please
Answer:
y = 7
Step-by-step explanation:
(5) + y = 12
12 - 5 = 7
Suppose the ratio of girls to boys in your school is 19:17. There are 1908 students altogether. Write and solve a system of equations to find the total number of boys and girls in the school.
Answer:
901 boys and 1007 girls
Step-by-step explanation:
let b be the number of boys
let g be the number of girls
[tex]b + g = 1908\\17g = 19b\\g = \frac{19}{17} b\\b+\frac{19}{17} b = 1908\\2\frac{2}{17}b = 1908\\b = 901\\901 + g = 1908\\g = 1007[/tex]
Solve by factoring X^2-100=0
the temperature inside 10 pizza ovens is what level of data
a) nominal- level
b) ordinal-level
c) interval-level
d)ratio-level
Sloths climb through the canopy while hanging upside down. If it takes a sloth 10 minutes to climb 7.5 feet, what's its climbing speed in miles per hour?
Answer:
0.00852 miles per hour
Step-by-step explanation:
Given that:
Distance = 7.5 feets
Time taken = 10 minutes
Speed = distance / time taken
Speed = 7. 5 feets / 10 minutes = 0.75 feets / minutes
Converting to miles per hour :
0.75 feets / minute :
1 mile = 5280 feets
1 minute = 1/60 = 0.0166666 hour
0.75 feets / minute = (0.75/5280)mile / 0.0166666
= 0.0001420 / 0.0166666 mile per hour
= 0.0085200 miles per hour
= 0.00852 miles per hour
can someone help me, with this problem, I really need the procedure
Answer:
In which standard u are???
Step-by-step explanation:
Of which chapter is it???
24 boys started a cycle racc and 18 of them
ended the race. What percentage of boys
ended the race?
ation owned
Which equations are true?
Answer:
A
Step-by-step explanation:
ion know cause when you solve the left side of A, you get x but with B you get 0, hope that makes sense
Answer:
C
Step-by-step explanation:
