Discriminant and the number of real roots for this equation are 0, one real root.
What is discriminant?Discriminant of a polynomial in math is a function of the coefficients of the polynomial.
The discriminant of a quadratic equation ax2 + bx + c = 0 is in terms of its coefficients a, b, and c. i.e.,
Discriminant = [tex]\sqrt{b^{2} -4ac}[/tex]
Given equation
[tex]4x^{2} +12x+9 = 0[/tex]
Discriminant = [tex]\sqrt{b^{2} -4ac}[/tex]
= [tex]\sqrt{12^{2}-4(4)(9) }[/tex]
= [tex]\sqrt{144-144}[/tex]
D = 0
Therefore, number of real roots is one.
Hence, discriminant and the number of real roots for this equation are 0, one real root.
Find out more information about discriminant here
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Please please help i really need this..
The length of a rectangular fenced enclosure is 12 feet more than the width
If farmer Dan has 100 feet of fencing, find the dimensions of the rectangle with the largest perimeter that can be created using 100 feet of fencing.
Answer:
length = 31 ft
width = 19ft
largest perimeter = 100 ft
Step-by-step explanation:
Let’s say the variable is x, if you draw a rectangle, you’d lable the length as 12+x (because the length is 12 ft longer than the width) and you’d lable the width as x.
Then you’d multply both terms by 2 (and add them up):
2(12+x) + 2(x)
Once you distribute and add...
24 + 2x + 2x
24 + 4x
Then you’d set that equal to 100, since that’s the amount of fencing Dan has:
24 + 4x = 100
Subtract 24 on both sides:
4x = 76
Divide by 4 on both sides:
x = 19
Then you found the width, now to find the length, just add x to 12 (which equals to 31).
Add all the sides up and it equals to 100, which is the largest perimeter than can be created using 100 ft of fencing.
Hope this helped :)
Please help meeeee, aw man
Answer:
a and d probably?
Step-by-step explanation:
Answer:
a and d
Step-by-step explanation:
The volume of the rectangular prism is 16 cubic cm. The length is 2 and 1/3 cm and the width is 4 cm. What is the height?
Answer:
The answer is 1 and 5/7 cm
Step-by-step explanation:
The Wilson Park Pool has 80,000 gallons of water that is being drained at a rate of 4000 gallons per day. How many days has the pool been draining if the water level is at 68,000 gallons?
Answer: 3 days
Step-by-step explanation:
1) 80,000 - 68,000 = 12,000
2) 12,000 / 4,000 = 3
3) Answer = 3 days!
help me pleaseeeeeeeeeeeeeeeeeeeeee plz
Answer:
31/33
Step-by-step explanation:
stick around, ill be posting more
Answer:
110
Step-by-step explanation:
corresponding angles
Help. Homework Math. Due Tomorrow.
Answer:
8. is B
9. is D
10. is a
Step-by-step explanation:
A quotient is always over any number
Which is the net for this triangular prism?
Find the volume of the figure. Round answers to the nearest hundredth, if necessary. Use 3.14 for pi.
Answer:
602.88
Step-by-step explanation:
V=π[tex]r^{2}[/tex]h
Answer: 602.88
Step-by-step explanation: 3.14 x r^2 x h = 3.14 x 16 x 12
Please help me asap!
Answer:
6. [tex]\sqrt{28}[/tex]
7. [tex]2\sqrt{29}[/tex]
8. [tex]\sqrt{317}[/tex]
BRAINLIEST?
Answer:
We're gonna need a coordinate plain for that.
Step-by-step explanation:
Carlos recorded the weight of several bags of potatoes. He then counted the number of potatoes in each bag. The scatterplot below represents the relationship between the number of potatoes in a bag and the weight of the bag.
A.10 pounds
B.8 pounds
C.55 pounds
D.50 pounds
Answer:
A
Step-by-step explanation:
Answer: let me know when you repost the question
Step-by-step explanation:
3n-3+10+2n=10 help plz show work
Answer:
n=3/5
Step-by-step explanation:
3n−3+10+2n=10
Step 1: Simplify both sides of the equation.
3n−3+10+2n=10
3n+−3+10+2n=10
(3n+2n)+(−3+10)=10(Combine Like Terms)
5n+7=10
5n+7=10
Step 2: Subtract 7 from both sides.
5n+7−7=10−7
5n=3
Step 3: Divide both sides by 5.
5n /5
= 3 /5
n= 3 /5
Answer:
n=3/5
Step-by-step explanation:
3n-3+10+2n=10 Combine like terms.
5n+7=10 Subtract 7 from both sides.
-7 -7
5n=3 Divide both sides by 5.
/5 /5
n=3/5
Hope this helps and have an amazing day ^^
What is 75/8. I am bad a division. I am offering 10 points for it. PLEASE ANSWER!!!!
Answer:
9.375
Step-by-step explanation:
9
8 | 7 5
7 2
3
9 with a remainder of 3
~~~~~~~~
9 . 3 7 5
8 | 7 5 .
7 2 .
3 . 0
2 . 4
6 0
5 6
4 0
4 0
9.375
Please I need help on this question.
Answer:
126mm
Step-by-step explanation:
To find the diameter of the circle = circumference divided by pi = 56.52/3.14=18mm.
There are 4 circles = 18mmx4=72mm
Add on the 3x strips = 72+(18x3) = 126mm.
Hope this helps
what is the value of y in this equation. 3y - 5 = 2y
Answer:
y=5
Step-by-step explanation:
3y-5=2y
3y-2y=5
y=5
Answer:
y=5
Step-by-step explanation:
3y-5=2y
/add 5 to both sides/
3y-5+5=2y+5
simplify
3y=2y+5
subtract 2y from both sides
3y-2y=2y+5-2y
simplify
y=5
Make a sketch of the cross section resulting from the slice shown in the right square pyramid below. Then, using complete sentences, describe the cross section.
Answer:3
Step-by-step explanation:
38+s6$
Write an algebraic expression from: A number times 7 minus 2
Tyler is saving to buy a new laptop. He has saved $119 so far. Let c represent the cost of the new laptop. Write an algebraic expression that represents the amount of money Noah still needs to save.
whats the measure of the angles (SHOW YOUR WORK so I can understand)
Answer:
Angle DEB: 52
Angle ADB: 30
Angle CBE: 52
Angle BEC: 38
Step-by-step explanation:
Angle DEB = 52 because triangles' angles must add up to 180. Angle ADB is 30 because it is complementary to angle BDE. Angle CBE is 52 because angle BEC is complementary to BED which is 52 degrees to BEC is 38 degrees. since the angles add up to 180, and C is 90, CBE is 52. Finally, BEC is 38 because it is complementary to BED.
I was just wondering if anyone could please help me?
Answer:
The first and 3rd one go to number 1 and the other 2 go to number 2
Step-by-step explanation:
Choose one
In the Pythagorean Theorem, the (two shortest sides or one short side and the hypotenuse) must always be substituted for the side lengths, not (a short side or the hypotenuse)
HI! im asking this again i know but could someone please tell me the answer? Will give brainliest and if you dont know DONT ANSWER OR I WILL HAVE TO REPORT!
Evan collected data about the amount of time each student in his math class spends studying. If the range of these data is 2, what does this reveal about the data?
A:All the students in his math class spend exactly 2 hours studying.
B:All the students in his math class spend an average of 2 hours studying.
C:The smallest and largest data values are 2 units away from each other.
D:The middle data value for time spent studying by all students in his class is 2 hours.
Answer:
its C
Step-by-step explanation:
C: The smallest and largest data values are 2 units away from each other.
have a good day! :)
Answer:
It's C. The smallest and largest data values are 2 units away from each other.
Step-by-step explanation:
I took the test and got it right. You can give the other person brainliest because they answered first.
pls help with 19 its due in 15
Answer:
5
Step-by-step explanation:
I. Label the parts
1. 23 is 66% of 35
a. What is the part? ___
b. what is the whole? ____
c. what is the percent? ____
2. Lou correctly answered 20 of the 32 questions on his math test. He answered 62.5% of the questions correctly.
a. What is the part? ___
b. what is the whole? ____
c. what is the percent? ____
II. Find the percent of each question.
3. 41 is what percent of 50? _____
4. Each of the theaters in the Charleston Cinema has 3 seats. There are a total of 18 seats in Charleston Cinema. What percent of the seats are in each theater? _________
5. 14 is what percent of 50? _______________
Step-by-step explanation:
Question number 1 The part is 23 and the whole is 35 and the percent is 66%.
Question number 2 is The part is 20 and the whole is 32 and the percent is 62.5%.
Question number 3 is 41 is 82% of 50.
Question number 4 is 3 is 6%of 18.
Question number 5 is 14 is 28% of 50.
Select all the expressions that are equal to (1.5)3
5.0625
3.375
4.5
2.25 × 1.5
2.5 × 1.25
Answer:
5 ÷ 2
-2(-1.25)
I don't get it and I have tried it multiple ways
9514 1404 393
Answer:
9350 m²
Step-by-step explanation:
There are several ways you can go at this. Here are 3 of them:
along an extension of the lower right vertical edge, divide the figure into a rectangle and a right triangle.between the upper left corner and the inside corner at lower right draw a diagonal line to divide the figure into a trapezoid and a triangle.subtract the area of the trapezoid at the right from the area of the bounding rectangle__
The relevant formulas for area are ...
rectangle: A = LW . . . . . . . . . . . length times width
trapezoid: A = (1/2)(b1 +b2)h . . . b1, b2 are the bases, h is the height
triangle: A = (1/2)bh . . . . . . . . . . . b is the base, h is the height
__
Here's what those computations look like:
1. rectangle: 60m wide by 80 m high = 4800 m².
right triangle: base 190-60 = 130 m; height = 80-10 = 70 m.
area = (1/2)(130 m)(70 m) = 4550 m²
figure area = 4800 m² +4550 m² = 9350 m² . . . . area of figure
__
2. The trapezoid has bases of 80 m and 10 m, and a height of 60 m. Its area is ...
A = (1/2)(80 m +10 m)(60 m) = 2700 m²
The triangle has a base of 190 m and a height of 80-10 = 70 m. Its area is ...
A = (1/2)(190 m)(70 m) = 6650 m²
Then the total area is 2700 m² +6650 m² = 9350 m² . . . total area
__
3. The bounding rectangle is 190 m by 80 m, so its area is ...
A = LW = (190 m)(80 m) = 15200 m²
The (negative) trapezoid at right has bases of 10 m and 80 m, and a width of 190-60 = 130 m. Its area is ...
A = (1/2)(10 m +80 m)(130 m) = 5850 m²
The area of the figure is the difference between these:
figure area = 15200 m² -5850 m² = 9350 m² . . . figure area
PLEASE NO TROLLS
Find the measure of angle A
tell me the two correct answers ASAP.
I'm outside your house right now Mark. In Onsted Michigan
Your school is Onsted Community Schools.
Today only, a desk is being sold at a 15% discount. The sale price is 629. What was the price yesterday?
what is 234+3465 i need help
Answer:
3699
Step-by-step explanation:
6(4-z)=2z what does z equal
Answer:
Z=3
That's the answer.......
