Answers
Answer:
Step-by-step explanation:
The given quadratic must be rewritten in standard form before anything else is done: -2x^2 + 8x - 8 = 0. The coefficients of the x terms are {-2, 8, -8}.
The discriminant b^2 - 4ac is therefore (8)^2 - 4(-2)(-8), or 64 - 64, or 0.
A zero discriminant points to two real, equal solutions.
Related Questions
An astronaut who weighed 150 pounds on Earth found that his weight on Jupiter was 400 pounds. He captured an alien that weighed 120 pounds on Jupiter. What is the alien's weight on Earth?
a.
45 pounds
c.
500 pounds
b.
30 pounds
d.
320 pounds
Please select the best answer from the choices provided
A
B
C
D
Answers
For a linear regression, what is the r-value of the following data to three
decimal places?
х
у
1
4
2
6 9
11
10
16
12
14
A. 0.665
B. -0.816
C. 0.816
D. -0.665
Answers
For a linear regression,
the value of r of the following data to three decimal places is 0.816.
The correct option is C.
What is a correlation coefficient?The precise metric used in a correlation analysis to quantify the strength of the linear relationship between two variables is the correlation coefficient. In a correlation report, the r stands for the coefficient.
A table is given.
For a linear regression analysis.
The calculation for mean and their sum is given in the attached image.
And the value of r is 0.816.
Therefore, the value of r is 0.816.
To learn more about the correlation coefficient;
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A. There will be 133 children attending summer camp. Nine children can
sleep in each cabin. How many cabins will be needed?
Answers
Answer:
15 cabins will be needed
Colin invests £1100 into his bank account. He receives 5% per year simple interest. How much will Colin have after 6 years? Give your answer to the nearest penny where appropriate.
Answers
Answer:
Step-by-step explanation:
P = £1100
r = 5%
t = 6 years
I =P*r*t
[tex]I =1100*\frac{5}{100}*6\\\\I=11*5*6\\\\I = 330[/tex]
Amount = P + I = 1100 + 330 = £1430
If a point is randomly selected from the rectangular area of the graph, what is the probability that it will be in the speckled region? round answer to the nearest whole percentage.
A. 6%
B. 11%
C. 16%
D. 21%
Answers
Answer:
b
Step-by-step explanation:
mark me brainiest
Answer:
b
Step-by-step explanation:
mark him brainiest
Can an isosceles triangle be an acute triangle as well?
Answers
You can kick "b" soccer balls into a goal in 2 minutes, and you have been kicking for 16 minutes. You take a break then kick 3 more balls. Do NOT try to solve, but write me an EXPRESSION that represents how many balls you kicked in totall
Answers
Answer:
x = 8b + 3
Step-by-step explanation:
BRAINLIST PLZ
Answer:
x = 8b + 3
Step-by-step explanation:
x = 8b + 3
You can kick "b" balls in 2 minutes. There are 8 two-minute intervals in 16. So 8 is multiplied by "b" soccer balls. 3 is the extra number of balls kicked after the break. x is the total number of soccer balls kicked.
bru you just times the too numbers then you divide the answer by 2 then you times that by 4 then that your answer BIG BRAIN 169420iq your welcome
Answers
Answer: SHEEEESHOOOOOO yesssirrrr big brainnnnnnn :clap clap:
If Amy has 5 apples and she eats 3 how many does she have left?
Answers
Answer:
2 apples.
Step-by-step explanation:
Answer:
She has 2 more apples left!
Step-by-step explanation:
Simple: this is the equation: 5 - 3 = 2!
Which is the expression 4 x 4 x4 x 3 x 3 x 2 x 2 x 2 x 2 written using
exponents?
Answers
Find the surface area of a square pyramid with side length 2 mi and slant height 5 mi.
5 mi
2 mi
2 mi
Answers
Answer: 24 in2
Step-by-step explanation:
The square pyramid has a surface area of 24 square miles.
What is the Surface area?The area or region that an object’s surface occupies is known as its surface area. Volume, on the other hand, refers to how much room an object has. There are numerous shapes and dimensions in geometry, including spheres, cubes, cuboids, cones, cylinders, etc. Each form has its own volume and surface area.
The surface area of a square pyramid is given by the formula:
[tex]S = L^2 + 2L\sqrt{((L/2)^2 + H^2)[/tex]
where L is the length of the base, H is the height of the pyramid, and S is the surface area.
Given L = 2 mi and slant height = 5 mi, we need to find H.
Using the Pythagorean theorem, we can find H as follows:
[tex]H^2 = (slant\ height)^2 - (1/2 L)^2\\\\H^2 = 25 - 1\\\\\H^2 = 24\\\\H = \sqrt{24[/tex]
Now, we can plug in the values of L and H into the formula for surface area:
[tex]S = L^2 + 2L\sqrt{((L/2)^2 + H^2)} \\\\S = 2^2 + 2(2)\sqrt{((2/2)^2 + (\sqrt{24})^2)}\\\\S = 4 + 4\sqrt{(1 + 24)}\\\\S = 4 + 4\sqrt{25}\\\\S = 4 + 4(5)\\\\S = 24[/tex]
Therefore, the surface area of the square pyramid is 24 square miles.
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Which solution correctly solves the problem 6x - 19 = 77? plz help
A.
B.
C.
D.
Answers
Answer:
D
Step-by-step explanation:
in order to get the process of solving the equation, we need to solve it.
our goal to solve the equation 6x-19=77 is to isolate the variable onto one side, and have the numbers (value of x) on the other
we have the equation:
6x-19=77
first, we can get rid of -19 on the left side and leave 6x on that side by adding 19 to both sides (-19+19=0).
The reason why we're adding 19 to both sides is because if we do something to one side, we have to do it to the other side to make sure the value of the equation stays the same.
6x-19= 77
+19 +19
_________
6x=96
now, we do have the variables on one side and the numbers on another side, but we aren't done yet, as we want the value of x by itself
divide by 6 on both sides
x=16 (because 6x/6=1x, or x. 96/6=16).
the option of D shows the same method I did and has the correct answer as well.
This is what was given for D:
6x-19=77
6x-19+19=77+19
6x=96
6x/6=96/6
x=16
(same thing I did)
So D is the correct answer.
Hope this helps!
The perimeter of a square is 20 ft. if you increase the length of the square by two feet what is the area, in square feet, of the new figure?
a. 35
b. 28
c. 22
d. 40
Answers
In a right triangle, the side opposite angle α has a length of 11.1 feet, the side adjacent to angle α has a length of 13.4 feet, and the hypotenuse has a length of 17.4 feet. What is the value of cos(α)?
a. 0.638
b. 0.828
c. 0.770
d. 1.299
Answers
Answer:
C
Step-by-step explanation:
A circle with a radius of One-half ft is dilated by a scale factor of 8. Which statements about the new circle are true? Check all that apply. The length of the new radius will be 4 feet. The length of the new radius will be 32 feet. The new circumference will be 8 times the original circumference. The new circumference will be 64 times the original circumference. The new area will be 8 times the original area. The new area will be 64 times the original area. The new circumference will be 8 pi feet. The new area will be 16 pi square feet.change if each side is increased by a factor of 10? A rectangle with length 6 centimeters and width 3 centimeters. The perimeter will be StartFraction 1 Over 10 EndFraction the original. The perimeter will be StartFraction 1 Over 100 EndFraction the original. The perimeter will be 10 times the original. The perimeter will be 100 times the original.
Answers
Answer:
The circumference of original circle is, The area of original circle is, The dilation by scale factor 8 means the radius of new circle is 8 times of the original circle. Therefore the radius of new circle is 4 ft and the statement A is true.
Find the area of the figure.
Answers
Answer:
132
Explanation:
All you need to do is separately find the area of the shapes that are part of the figure (in this case the trapezoid and rectangle), and then add them all up.
1.(7x4) + (1/2x8[7+19])
2. 28 + 104
3. 132
~Hope this helps you~
Solve for q.
3/5 = q/10
q=?
Answers
Then you swap sides of the equation, you get 5q=30
Then you divide both sides of the equation by 5
Your answer is q=6
ASAP
-will mark brianist
Answers
Answer:
20-12
35-21
40-24
Step-by-step explanation:
You times both numbers by the same value
Answer:
1st is 12
2nd is 35
3rd is 40
Step-by-step explanation:
PLS HELPPPP
Which expression is equivalent to 8x + 6?
A. -7(1 – x) + x + 13
B. 10x - 8 - 2x + 2
C. 2x + 10 - (4 + 6x)
D. 9x - 10 + x - 4
Answers
Answer:
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Step-by-step explanation:ccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Traveling 315 feet in seven minutes. Traveling per minute? how far would it be in 10 minutes?
Answers
Answer:
45 per minute. 450 in 10 minutes.
Step-by-step explanation:
Distance/ Time
315/ 7 = 45
Unit rate x how far you need to go
45 x 10 = 450
Answer:
450 ft
Step-by-step explanation:
315/7 = 45 (eveyr minute 45 ft)
10x45 = 450
Find the area of the parallelogram. Include formula.
Answers
Answer:
24 units²
Step-by-step explanation:
Hi there!
[tex]A=bh[/tex] where b is the base and h is the height of the parallelogram
Plug in 6 as the base and 4 as the height
[tex]A=(6)(4)\\A=24[/tex]
Therefore, the area of the parallelogram is 24 units².
I hope this helps!
Answer:
Given :-Height = 6 cm
Base = 4 cm
To Find :-Area
Solution :-We know that
Area = Base × Height
Area = 4 × 6
Area = 24 in²
[tex] \\ [/tex]
[tex] \sqrt{4 {}^{4} } [/tex]
Answers
Answer:
16 will be your answer
Step-by-step explanation:
hope it helps..
Thanks again for the points bro!!
i’ll give brainliest!!! please help!
Answers
It is trip i think
Is f(x)=4x+9 a function? please answer immediately!
Answers
Answer:
Yes!
Step-by-step explanation:
Answer:
I'm pretty sure it is cuz I have see many functions like that in algebra. yea it is a function, it's a linear function. y=mx+b
HELP ASAP, LINKS AND ABSURD ANSWERS WILL BE REPORTED! I WILL MARK BRAINLIEST!!
Answers
Answer:
5/3 or 3/5
Step-by-step explanation:
MRK ME BRAINLIEST PLZ
11.
{THE LAST ONE, LETS GO! THIS IS A POG MOMENT}
Answers
Look at the triangular prism below. Each triangular face of the prism has a base of 3 centimeters (cm)and a height of 4 cm. The length of the prism is 12 cm.
What is the volume of this triangular prism?
Answers
Answer:
chupapi muñeño
Step-by-step explanation:
Answer:
144 cm?
Step-by-step explanation:
V
[tex]v = l \times w \times h \\ v =12 \times 4 \times 3 \\ v = 12 \times 12 \\ v = 144[/tex]
The rectangle below has a length of 7 centimeters and a width of 3 centimeters. Three centimeters are subtracted from the length, and c centimeters are added to the width. The area of the new rectangle is 32 square centimeters. What is the value of c?
A. 1 centimeters
B. 3 centimeter
C. 5 centimeters
D. 10 centimeters
Answers
Answer:
C
Step-by-step explanation:
7 - 3 = 4 = Length
3 + c = ? = w
A = 32
32 ÷ 4 = 8 = w
8 - 3 = 5 = number added to width
5 = c
Word explanation:
To find the number added, you have to figure out the length so that you could divide it by area to figure out the width.
So, to do that, you follow what the question said, "Three centimeters are subtracted from the length." = 7 - 3 = l = 4
Then, you move on to figure out the width, so you divide the area by the length = 32 ÷ 4 = 8 = width.
Now that you know the width, you continue to follow what the question said, "C centimeters are added to width."
= 3 (previous width) + c = 8 (new width)
After that, you subtract 8 - 3 to find the amount added to the width and that gives you 5, which is C.
The value of the variable c is 5 centimeters.
What is the area of the rectangle?The area of the rectangle is the product of the length and width of a given rectangle.
The area of the rectangle = length × Width
To determine the number added, we have to figure out the length so that we could divide it by area to figure out the width.
"Three centimeters are subtracted from the length means;
= 7 - 3 = l = 4
Then, move on to figure out the width, so we divide the area by the length
= 32 ÷ 4
= 8 width.
Now that we know the width, continue to follow what the question said, "C centimeters are added to width."
= 3 (previous width) + c = 8 (new width)
After that, subtract 8 - 3 to find the amount added to the width and that gives 5, which is C.
Learn more about the area;
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Two tanks contain equal amount of liquid. They are connected by a pipe and 2500 gallons is
pumped from tank 1 to tank 2. When the pumping is done, one tank then contains 5 times as
much as the other. How many gallons did each tank contain at the start?
Answers
Answer:
3750
Step-by-step explanation:
Let the tank contain x gallons of water.
when pumping is done, then tank 1 contain x-2500 gallons
and tank 2 contain x+2500 gallons.
according to question,
5(x - 2500) = x + 2500
or, 5x -12500 =x+ 2500
or, 5x - x =2500+12500
or, 4x =15000
or, x= 3750
hence each tank contains 3750 gallons.
A survey asked 30 people what their favorite genre of television broadcasting was, and the results were tabulated
above. Find the probability that a male chosen at random watches comedy.
A. 2/15
B. 1/6
C. 1/3
D. 5/11
Answers
Answer:
C would be your answer. If im not mmistaken but im 99% sure
Step-by-step explanation:
Analyze the table below and complete the instructions that follow.
Sports
Drama
Comedy
Total
Male
8
2
5
15
Female
3
6
6
15
Total
11
8
11
30
A survey asked 30 people what their favorite genre of television broadcasting was, and the results were tabulated above. Find the probability that a male chosen at random watches drama.