Use the graph to find the solutions of -1/2x^2-x+4=0. No bots or links please. Give a logical answer. I need this for a timed test and its greatly appreciated.
Answers
Answer:
= − 4
= 2
Step-by-step explanation:
search it up
Related Questions
Find the value of x.
101 x +29
Answers
Answer:
x = 50
Step-by-step explanation:
101 + (x + 29) = 180
130 + x = 180
x = 180 - 130
x = 50
Answer:
50°
Step-by-step explanation:
in order ro find x you would need to solve for 101° ( x + 29) = 180° if you replace x with 50 then you equation would be true!
HELP PLEASE!!!!! IM DESPERATE!
Answers
Answer: A
Step-by-step explanation:
I did the math on paper, it's A. I'm so sorry if it's wrong but I'm pretty positive.
Answer:
it's a because I worked it out
hello please help i’ll give brainliest
Answers
Answer:
C i think
Step-by-step explanation:
Once an action is caused, a reaction immediatley happens
ASAP!!!!!!!!!!!!!!!!
Answers
Johnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV. He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV. Is Johnny making a valid inference about this population? (5 points)
a
Yes, it is a valid inference because his classmates make up a random sample of the students in the school
b
Yes, it is a valid inference because he asked all 26 students in his science class
c
No, it is not a valid inference because he asked all 26 students in his science class instead of taking a sample from his math class
d
No, it is not a valid inference because his classmates do not make up a random sample of the students in the school
Answers
Answer: d. No, it is not a valid inference because his classmates do not make up a random sample of the students in the school
Step-by-step explanation: this i because there is a possible bias present in his population
Hope this helps!
Find Area in (Ft^2) help needed asap marking brainliest
Answers
Answer:
168
Step-by-step explanation:
I do believe
What is 4/5 divided by 2/25 - 5/16?
(Please show your steps.)
Answers
when u divide fractions, u flip the second fraction around and multiply
4/5 divide by 2/25
= 4/5 x 25/2
= 100/10
reduced is 10/1, or a mixed fraction would be just 10
then subtract
10/1 - 5/16
= 9 11/16
−10(9c−7c+8)−8c
pls help
Answers
What is the value of the 6 in the number 1,265,432
Answers
Answer:
The ten thousandth number (or 60,000)
Step-by-step explanation:
2. The length of a rectangle is 18 centimeters and the width is 6 centimeters. A similar rectangle
has a width of 2 centimeters. What is the length of the second rectangle? (Sketch a picture)
Answers
Answer:
6
Step-by-step explanation:
I am unable to sketch a picture for you but I will do my best to help you understand. We know that our length of the first rectangle is 18 cm and the width is 6 cm. At the moment we don't need 18 so we'll put that to the side for now and focus on the width. We understand that in a second similar rectangle, the width is 2 centimeters. in order to find our scale, we must divide the larger width by the smaller width. This means we will divide 6cm by 2 cm. 6/2=3 This means that we also divide 18 by 3 since the similar rectangle is smaller and we are figuring out the missing side. After dividing 18 by 3 we should get an answer of 6. 18/3=6 Which means that our similar rectangle has a length of 6 cm and a width of 2 cm.
I also want to mention that similar rectangles are not the same rectangle however you can think of them as enlargerd/shrunk versions of the original rectangle. I hope this helps.
can anyone help with this plzzz!!!!!!!!!!!!!!!!!!
Answers
Answer:
?
Step-by-step explanation:
?
PLEASE HELPP I HAVE A TIMER. which equation represents the graphed function?
a.y=4x-2
b.y=-4x-2
c.y=1/4x-2
d.-1/4x-2
Answers
Answer:
C. y = 1/4x -2
Please mark as brainliest if answer is right
Have a great day, be safe and healthy
Thank u
XD
Help and explanation if you don’t know don’t answer
Answers
Answer:
A is false (Y is far left of 0, so it is a negative. H is close to 0 so it is positive. Y is farther from zero, so it is bigger. For example, Y could be -7, and H could be 3. The sum of -7 and 3, would be -5.
B is false (E is on the left of 0 so it is negative. Y is on the left of zero so it is also negative. Negative divided by a negative is a positive )
C is false (H is positive and E is negative. Positive times a negative equals a negative.)
D is true (A is close to zero, so it is a small positive number. H is farther from zero, so it is a larger positive number. For example, A can be 2 and H can be 5. So, 3 - 5 would equal a negative.)
8x + 2y = 30
7x + 2y = 24
Solve the system of equations
Answers
Answer:
X=6, y=-9
Step-by-step explanation:
Complete the square
to find the vertex
of this parabola.
2.
х
- 16 Y-4 x-12=0
Answers
Answer:
Vertex coordinates; (h,k) = (2, -1)
Step-by-step explanation:
Vertex form of a parabola is;
y = a(x - h)² + k
Now, we are given;
x² - 16y - 4x - 12 = 0
Rearranging, we have;
x² - 4x = 16y + 12
Let's complete the square on the left hand side;
First add square of half of the coefficient of x to both sides;
x² - 4x + (-½ × 4)² = 16y + 12 + (-½ × 4)²
x² - 4x + 4 = 16y + 12 + 4
LHS can be expressed as;
(x - 2)² = 16y + 16
16y = (x - 2)² - 16
Divide both sides by 16 to get;
y = (1/16)(x - 2)² - 1
Comparing this with y = a(x - h)² + k, we have;
a = 1/16
h = 2
k = -1
(h,k) = (2, -1)
4x^2-16=x^2+32
Using reverse PEMDAS
Answers
Answer:
x = ±4 (x = 4 and x = -4)
Step-by-step explanation:
4x²-16 = x²+32
3x²-16 = 32
3x² = 48
x² = 16
x = ±4
Therefore, x = 4 and x = -4
The perimeter of a rectangular feild is 60 ft and it’s width is 20ft find the area of this feild
Answers
give brainliest for this pls
A=200ft²
Answer:
200ft?
Step-by-step explanation:
Students who attend Anytown College pay either in-state or out-of-state tuition, depending on where they reside. The amount, I, spent on in-state tuition and the amount, O, spent on out-of-state tuition for a randomly selected student both follow a Normal distribution.
The mean and standard deviation of the sum S = I + O of tuition for a randomly selected pair of in-state and out-of-state students are μS = $6,348.75 and σS = $1,508.48.
Use the z-table to answer the question.
What is the probability that the sum of a randomly selected pair of in- and out-of-state students has a tuition charge of more than $8,000?
0.0009
0.1368
0.8632
0.9991
Answers
Answer:
The correct answer is 0.1368
Step-by-step explanation:
Got it right on Edge assignment
A recipe that serves 4 people uses 3 onions. How many onions are needed to serve 20 people?
Answers
Answer:
15 onions are required.
Which of the following values is not in the solution set of the inequality 7x − 5 > 29?
A. 4
B. 5
C. 6
D. 7
Answers
Answer:
A.4
Step-by-step explanation:
roman numbers*
XCIX = LV _ XXXIII
XI
i need to know what signs go where is it "+ +" or "- +"
or "+ -" or "- +" ???
Answers
Answer:
The sign that go in the expression is - "+ +"
Step-by-step explanation:
Given - XCIX = LV _ XXXIII _ XI
To find - i need to know what signs go where is it "+ +" or "- +" or "+ -" or "- +" ???
Proof -
We know that from the table that,
XCIX = 99
LV = 55
XXXIII = 33
XI = 11
So,
The equation becomes
99 = 55 _ 33 _ 11
Now,
If we put + + then the equation becomes
99 = 55 + 33 + 11
⇒99 = 99
It satisfies.
Now,
If we put - + then the equation becomes
99 = 55 - 33 + 11
⇒99 = 33
It does not satisfies.
Now,
If we put + - then the equation becomes
99 = 55 + 33 - 11
⇒99 = 77
It does not satisfies.
So,
The sign that go in the expression is - "+ +"
The correct mathematical signs are "++" to have XCIX = LV + XXXIII + XI
This is the application of Roman Numerals.
Given the expression XCIX = LV _ XXXIII _XI
We need to know which of the signs will fit in the space provided in the equation.
First, we need to convert the roman numeral to roman figures as shown:
XCIX = 99
LV = 55
XXXIII = 33
XI = 11
Taking the sum of the right-hand side of the equation;
55 + 33 + 11 = 99
This shows that the correct mathematical signs are "++" to have
XCIX = LV + XXXIII + XI
Learn more here: https://brainly.com/question/25576958
Find the size of the angle 3x.
3x=
Answers
Answer:
60 degrees
Step-by-step explanation:
a straight line is 180 degrees
2x= 120 degrees
x=60 degrees
Answer:
The value of x is 60°
Step-by-step explanation:
For a given Straight Line
We know that, The straight angle is an angle equal to 180°
So,
3x = 180
Divide by 3 from both side
3x/3 = 180/3
x = 60°
Thus, The value of x is 60°
-TheUnknownScientist
N = 16 - (3 + 2) I dont know what this is.
Answers
Answer:N=11
Step-by-step explanation: 16-5 is 11, and that is equal to N
I need help with geometry
Answers
6x-1=23
+1 +1
6x=24
X=4
Answer:
B. x = 4
Step-by-step explanation:
The two triangles have two congruent sides and a congruent angle. You can say ΔBAC ≅ ΔEDF because of SAS. Corresponding parts of congruent triangles are congruent, so you can say:
BC = EF
And we can substitute their values:
6x - 1 = 23
6x = 24
x = 4
A dice is rolled. What is the probability that a 4 is rolled?
A) 1/2
B) 1/3
C) 2/3
D 1/6
This is for my high school final exam so please answer fast
Answers
Answer:
I think 1/6
Step-by-step explanation:
There are 6 sides on a dice and only one 4. So then you have a 1/6 chance of rolling 4.
hope this help!
Answer:
1/6
Step-by-step explanation:
There are 6 numbers on a die 1,2,3,4,5, and 6. If one number was picked out it would be 1/6
hii! help asap. i’ll give brainliest thanks!
Answers
Answer:
B
Step-by-step explanation:
Answer:
It's acceleration will change
Step-by-step explanation:
The question states that only the force on the object increased, that will cause it to go alot faster than before due to the increase in force.
For the graph of x > 10, the boundary line
is the vertical line x = 10. Would you
shade to the left or right of the boundary?
Explain.
Answers
Answer:
to the right
Step-by-step explanation:
you're looking for values over 10 to make the inequality true, meaning the numbers has to go larger, you'd draw the line vertically at 10, then shade to the right.
The heights of students are normally distributed with a mean of 64 inches and a standard deviation of 3 inches. Find the area under the curve for heights between 58 and 78 inches
(no links please!)
Answers
Answer:
0.9772 or 97.72%
Step-by-step explanation:
P(58<X<78) = normalcdf(58,78,64,3) = 0.9772484056 = 0.9772
The area under the curve would be 0.9772 or 97.72%
Please help I’ll make you the brainiest
Answers
Answer:
B
Step-by-step explanation:
7-3=4
4x4=16
simplify………………………. look at the picture for the question thanks
Answers
Answer:
C) 2y^6/x^8
Step-by-step explanation:
Mathtype won't work on here, sorry.
Hope this helped! :)