Solve by completing the square.
d^2 − 6d = 19
Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.
d = or d =
Help would be appreciated as well as how to get the answer!
Answers
Answer:
Here's the answer
Step-by-step explanation:
Hope it will help.
Related Questions
Please answer this correctly and do not guess or put random stuff. I will report if you do so.
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Explanation: The graph shows a linear relationship.
24 boys started a cycle racc and 18 of them
ended the race. What percentage of boys
ended the race?
ation owned
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25-18=6
6 goes into 24 4 times so it is 25% that did not finish
100%-25%=75%
So 75% finished the race
los activos representan bienes derechos y dinero de propiedad de la empresa en un determinado periodo contable verdadero o falso ?
Answers
Answer:
True
Step-by-step explanation:
5. The value of a home increases by 7% each year. Explain why the value of the home doubles approximately once each decade.
Answers
Answer:
Step-by-step explanation:
2x=x(1.07)^t
2=(1.07)^t
t=log2/(log 1.07) ≈10.2 4 years
so it doubles in approximately in 10.2 years
To solve the problem we must know about Compounding.
What is compounding?Compounding is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. and this continues for t period of time.
It is given by the formula,
[tex]A = P(1+r)^t[/tex]
where A is the value after t period of time,
P is the value of the asset at the beginning, and,
r is the rate of interest.
The value of the home doubles once each decade.
Given to us
As it is given that the value of a home increases by 7% each year, therefore, the value of the home is compounding every year.
We know the formula of compounding,
[tex]A = P(1+r)^t[/tex]
Why does the value doubles?Now, let's assume a house whose value is 'P' today, therefore, substitute the value of the house in the formula of compounding,
[tex]A = P(1+r)^t[/tex]
Substitute the rate at which the value is increasing,
[tex]A = P(1+0.07)^t[/tex]
We know that in a decade there are 10 years,
[tex]A = P(1.07)^{10}[/tex]
[tex]A = 1.967P\approx 2P[/tex]
As we can see that the value of the home is almost 2 times the 'P' therefore, twice the value of the home at the beginning.
Hence, the value of the home doubles once each decade.
Learn more about Compounding:
https://brainly.com/question/25857212
Circle the volume, in cm^3, of a cylinder with radius 5 cm and height 8 cm
[1 mark]
A)40π
B)80π
C)200π
D)1600π
Answers
Answer:
C
Step-by-step explanation:
Volume of a cylinder is πr²h
V = π * 5² * 8
V = π * 25 * 8
V = π * 200
V = 200π
I don't understand how to solve this Write a proportion to find how many points x a student needs to score on a test worth 50 points to get a test score of 40%.
Answers
Answer: 20
Step-by-step explanation:
Total worth of test = 50
Percentage of test score to be gotten = 40%
Then , the total point the student need to get to get 40% will be:
= x/50 = 40%
x/50 = 40/100
x/50 = 0.4
Cross multiply
x = 50 × 0.4
x = 20
The student needs to score 20 points
the temperature inside 10 pizza ovens is what level of data
a) nominal- level
b) ordinal-level
c) interval-level
d)ratio-level
Answers
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.
Answers
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
Help me on my homework pls
Answers
Answer:
point a would be (-4,3) point b would be (0,5) point c would be (2,1)
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
Answers
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
What is the value of 19-7-15+14
Answers
Answer: the answer is 11 :)
Step-by-step explanation: I hope this helped!
Answer:
11
Step-by-step explanation:
19 - 7 = 12 - 15 = -3 + 14 = 11
or, if your brain likes it better, add the positives, then add the negatives, then subtract:
19 + 14 = 33
-7 -15 = -22
33 - 22 = 11
EASY QUESTION!
Australia have 34 medal in TOTAL. They have 9 gold medals in that total so, what percent of Australia's medals are gold??
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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
Answers
Answer:
Step-by-step explanation:
Hand d hands. I Nnendjejw ndndnenend nsdnd nsrjer
If the circumference of a circle is 12.56 ft, what is the length of the radius? Use 3.14 for π.
A. 6.28 in.
B. 4.03 in.
C. 4 in.
D. 2 in.
Answers
Answer:
D - 2in
Step-by-step explanation:
Lyla has $1 and 5 dimes in her pile. Harrison has 15 dimes in his pile. If Lyla gives Harrison $1 and
Harrison gives Lyla 10 dimes, will the two piles still be equal in value? Explain.
Select the correct choice below and fill in the answer boxes to complete your choice.
Answers
Answer:
yes, they will be equal
Step-by-step explanation:
I think they will be equal, because 10 dimes=$1
Andy is wrapping gifts for the holidays. He has 3 rolls of wrapping paper that are 18- inches wide and 24- inches long. What is the total area that 3 rolls of wrapping paper could cover?
Answers
Answer:
1296 sq inches
Step-by-step explanation:
To start, you need to get the total area of each individual roll of wrapping paper. To do this, you need to multiply the length x width, which would be 18 x 24 = 432. Then, you have three rolls so you mutiply that by three, which is 432 x 3 = 1296. You add the unit, and that leaves you with 1296 sq inches.
HELP WILL MARK BRAINLIEST ANSWER IF GOTTEN RIGHT
Answers
Answer:
sine C = 36.87 degrees
Step-by-step explanation:
sin = [tex]\frac{opposite}{hypotenuse}[/tex]
sin C = [tex]\frac{12}{20}[/tex]
sin C = 0.60
sin-1 C = 36.869
round to the nearest hundreath:
36.869 = 36.87
Given g(x) = -x – 4, solve for 2 when g(x) = -4.
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stuck on this hope someone can help me
Answers
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:
The complex solutions of which equation have a real component of 4?
A 12 - 81 + 16 = -21
В. 12 + 8 + 16 = -21
C. 2 - 41 + 4 = -25
D. 12 + 40 + 4 = -25
Answers
Answer:
a
Step-by-step explanation:
Two pet stores offer customers the opportunity to donate money, in dollar increments, to the local humane society at the register. The dot plots below show the amounts donated last week.
The variability at each pet store is 1.4. The difference between the mode amount donated at each pet store is approximately how many times the variability?
A. 3
B. 4
C. 2
D. 5
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ASAP PLEASE HELP ME!!!!!!!!!
You rotate the door 180°.
What does this mean in the
context of the situation?
Explain.
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HELP PLEASEEEEEE!!!!!
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need answer. please help
Answers
2x=12
X=6
UW=7(6)+13
UW=42+13
UW=55
is number 4 correct?
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Answer:
sure
Step-by-step explanation:
Explain why cos E
-
СВ/AB
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Answer:
Note that the three identities above all involve squaring and the number 1.You can see the Pythagorean-Theorom relationship clearly if you consider the unit circle, where the angle is t, the "opposite" side is sin(t) = y, the "adjacent" side is cos(t) = x, and the hypotenuse is 1.. We have additional identities related to the functional status of the trig ratios:
Step-by-step explanation:
Estimate the sum 4.86+9.57
Answers
Answer:
about 14 or 14.3 to be more specific
Step-by-step explanation:
Step-by-step explanation:
here is the my estimation for this is is 14.43
The points (1, 4) and (−3, 2) are the endpoints of a diameter of a circle. What is the equation of the circle?
Answers
Answer:
Step by step
Step-by-step explanation:
Since we have the endpoints of the diameter, the midpoint coordinates of the line segment joining them gives the centre of the circle.
That is, centre (a,b) = ( [1+(-3)]/2, [4+2]/2) = (-1,3)
Distance between the given points give the diameter and half of that is the radius length.
So, radius r = (1/2)* sqrt ( [1-(-3)]^2 + [4–2]^2) = sqrt(5)
Thus equation required is: (x-a)^2 + (y-b)^2 = r^2
So, (x+1)^2 + (y-3)^2 = 5
The equation of the circle is (x + 1)² + (y - 3)² = 5
How to determine the circle equation?The endpoints of the diameter are given as:
(1, 4) and (−3, 2)
Start by calculating the midpoint using:
Midpoint = 0.5 * (x₁ + x₂, y₁ + y₂)
So, we have:
Midpoint = 0.5 * (1 - 3, 4 + 2)
Evaluate
Midpoint = (-1, 3)
So, the center (a,b) of the circle is:
(a,b) = (-1,3)
Calculate the length of the diameter using:
D² =(x₁ - x₂)² + (y₁ - y₂)²
This gives
D² = (1 + 3)² + (4 - 2)²
D² = 20
Take the square roots
D = 2√5
Divide by 2 to calculate the radius
r = √5
Square both sides
r² = 5
The equation of the circle is then represented as:
(x - a)² + (y - b)² = r²
This gives
(x + 1)² + (y - 3)² = 5
Hence, the equation of the circle is (x + 1)² + (y - 3)² = 5
Read more about circle equations at:
https://brainly.com/question/1559324
help please its math and i dont knon how to solve them
Answers
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
In quadrilateral ABCD, AD ∥ BC. Quadrilateral A B C D is shown. Sides A D and B C are parallel. The length of A D is 3 x + 7 and the length of B C is 5 x minus 9. What must the length of segment AD be for the quadrilateral to be a parallelogram? 8 units 16 units 31 units 62 units
Answers
Answer:
31 units
Step-by-step explanation:
Given
[tex]AD = 3x + 7[/tex]
[tex]BC = 5x - 9[/tex]
Required
Find
If AD parallel to BC, then:
[tex]AD = BC[/tex]
This gives:
[tex]3x + 7 = 5x - 9[/tex]
Collect like terms
[tex]3x- 5x = -7-9[/tex]
[tex]-2x = -16[/tex]
Solve for x
[tex]x = 8[/tex]
Substitute [tex]x = 8[/tex] in [tex]AD = 3x + 7[/tex]
[tex]AD = 3 * 8 + 7[/tex]
[tex]AD = 31[/tex]
Answer:
C) 31
Step-by-step explanation:
