Answer:
When the discriminant value is zero, we get one real solution; When the discriminant value is negative, we get a pair of complex solutions; Standard Form. The standard discriminant form for the quadratic equation ax 2 + bx + c = 0 is. Discriminant, D = b 2 – 4ac. Where. a is the coefficient of x 2. b is the coefficient of x. c is a constant term.
Estimated Reading Time: 50 secs
Step-by-step explanation:
Since 1900, the Audubon Society has conducted an annual Christmas bird count, documenting the number of birds of each species seen in locations across the country. In the 2011 Christmas bird count, there were 3,813 red-tailed hawks seen and counted in Texas. In the 2012 count, there were 4,511 red-tailed hawks counted in Texas. Calculate the growth rate by dividing the difference in the numbers seen in the two years by the number seen in 2011. Then use this value to calculate the estimated population of red-tailed hawks in Texas in 2022, if the growth rate remains constant.
Answer:
The answer is 23,610
Step-by-step explanation
First: 4,511-3,813= 698
Second: 698/3,813 = 0.18
Third: 4,511(1+0.18)^10 {could be put on a ti-84 calculator}
Answer: About 23,610 ( This is an estimate as the answer is an decimal)
I hope this helps! :)
Help please look at the pic
Answer:
oo
online cheating
this is not fair
Answer: it is the first one
Step-by-step explanation:
which is the equation of a parabola with focus (-5,3) and vertex (-5,6)
Answer:
(y−6)=(-1/12)*(x+5)² i think
Step-by-step explanation:
Please help. I don't know-how
Answer: 4
You would set this up like so:
125 ≤ 29.50 + 19.50x
Subtract 29.50 from both sides.
You should be left with 95.50 ≤ 19.50x
From here, you wanna divide both sides by 19.50 (we do this to isolate the x)
You would get 4.89.
Since Tamesha can't buy half a shirt, you don't wanna round up. So, the answer should be 4.
Step-by-step explanation:
Trust Milky. Milky smart!
Answer:
she can buy 4 shirts
Step-by-step explanation:
maximum that she can spend = $125
dress = $29.50
shirt = $19.50
first, take 29.50 and subtract it from 125
⇒ 125 - 29.50 = $95.50 remaining
then take 95.50 and it divide it by 19.50 to determine how many shirts she can buy
⇒ [tex]\frac{95.50}{19.50}[/tex] = 4.897
⇒ 4 shirts
to solve:
take 4 shirts and multiply it by 19.50
⇒ 4 x 19.50 = $78
then take the product and add 29.50
⇒ 78 + 29.50 = 107.50
take the maximum money and subtract 107.50 from it
⇒ 125 - 107.50 = 17.5
Tamesha would have $17.50 remaining.
PLEASE HELP ME!!! IVE BEEN STUCK ON THIS FOR SO LONG!!
the answer is 3x^3 +13x^2 +6x -8.
Answer:
I can simplify it for u but not sure the product
3x(x²+3x-2)+4(x²+3x-2)
3x³+9x²-6x+4x²+12x-8
=3x³+13x²+6x-8
that's the final answer
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
x = 3.6
Step-by-step explanation:
Since, ABCD ~ EFGH
Therefore, all interior angles of both the quadrilaterals will be equal and the corresponding sides of both quadrilaterals will be proportional.
[tex]\frac{AD}{EH}=\frac{AB}{EF}[/tex]
[tex]\frac{x}{2.4}=\frac{3}{2}[/tex]
x = [tex]\frac{3\times 2.4}{2}[/tex]
x = 3.6
When Shawn cleaned his room he found that the ratio of clean clothes to dirty clothes was 3 to 5 if 46 articles of clothing were discovered how many were clean
Answer:
17.25
Step-by-step explanation:
Ratio of clean clothes to dirty clothes = 3 : 5
Clean clothes = 3
Dirty clothes = 5
Total ratio = 3 + 5 = 8
Total clothing article = 46
how many were clean
Number of clean clothes = ratio of clean clothes / total ratio × total clothing article
= 3/8 × 46
= 0.375 × 46
= 17.25
Does anyone know these answers??
The angles of a triangle always add up to 180°.
By simply adding the angles and checking the total, you can tell if they make a triangle or not.
Using this property, 5 won't make a triangle, 6 will.
Hope this helps! :D
June earns $50 a week for babysitting. She
saves 1/4 of it and keeps 1/5 for bus fare and
gives her mother the rest. How much money
does her mother get?
Answer:
27.5
Step-by-step explanation:
1/4 of $50 is $12.5. 1/5 of $50 is $10. 12.5 + 10= 22.5. So, $50-22.5= $27.5
Help me with this!!! I will mark Brainliest
Answer:
No
Step-by-step explanation:
VX = 4 spaces
UW = 3 spaces
What is the inverse operation do use to solve for t?
t - 19=2
We use addition, or rather the addition property of equality.
t-19+19=2+19
t=21
:D
Step-by-step explanation:
Addition is the inverse operation.
inverses:
addition/subtraction
multiplication/ division
If you need to solve for t:
t-19=2
add 19 to both sides to isolate the variable (t)
t=21
factorise fully
16a²-121b²
Answer:
(4a - 11b)(4a + 11b)
Step-by-step explanation:
16a² - 121b² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
16a² - 121b²
= (4a)² - (11b)²
= (4a - 11b)(4a + 11b)
Answer:
Step-by-step explanation:
Rule: (a^2-b^2)=(a-b)(a+b) (‘difference of squares’)
16a^2-121b^2
(4a-11b)(4a+11b)
!!PLEASE ANSWER IMMEDIATELY!!
The following quadrilateral is a rhombus. The measure of angle E is 115
degrees. What is the measure of angle G?*
Answer:
<E=<G=115°
since opposite angle of rhombus is equal
An acute triangle has two sides measuring 8 cm and 10 cm. What is the best representation of the possible
range of values for the third side, s?
Answer:
80cm. I think please be right
What is the slope in the picture??
Can someone please do this please.
(If you don’t know how to do it please don’t do it) i don’t wanna keep losing points because people answer the questions with irrelevant things. So please don’t waste my time and please answer it for real. If you get it wrong it’s ok. Just please help me
Answer:
72°
Step-by-step explanation:
tan x= PN/OP=95/31
⇒x ≈ 72°
An online clothing company sells custom sweatshirts. The company charges $4.99 for shipping plus $20 for each sweatshirt. Write a linear function rule that models the total cost y (in dollars) for any number of sweatshirts x.
Answer:
20x+4.99=y
Step-by-step explanation:
Each sweatshirt cost $20, but we don't know how many sweatshirts someone will buy so we use X, representing the amount of sweatshirts. There is a shipping charge of $4.99, so we have to add that to the cost of the sweatshirts. 20x+4.99. Y is the total cost.
The territory of a small town can be modeled by a rectangle with an area of 45 square miles. If the town has a population of 14,850, then what is its population density?
Answer:
330 people per square mile
Step-by-step explanation:
Here, we want to find the population density of the town
To find this, we have to divide the population by the area
That will be ;
14,850/ 45 = =330 people per square mile
Solve for the value of y.
Solved for the value of y and found that y = 5.
What is the Pythagorean theorem?In the Pythagorean theorem, the sum of the squares of the sides of a right-angled triangle is equal to the square of the longest side i.e, the hypotenuse of the triangle.
z² = x² + y²
The given triangle is a right-angled triangle. This means that we can use the Pythagorean theorem.
∴ y² + 12² = 13²
⇒ y² + 144 = 169
⇒ y² = 169-144
⇒ y² = 25
⇒ y = 5
Therefore, we have solved for the value of y and found that y = 5. The correct answer is option C.
Learn more about the Pythagorean theorem here-https://brainly.com/question/343682
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Circle B with tangent AD and tangent DC.
Arc AC has a measure of 85".
What is the relationship between m ABC and mZADC?
Answer:
D
Step-by-step explanation:
=90
Answer:
D
Step-by-step explanation:
(3,4)(2,-6) in slope intercept form
Answer:
y=10x-26
Step-by-step explanation:
1.find the slope
m=y2-y1/x2-x1
m=-6-4/2-3
m=-10/-1
m=10
2.y-y1=m(x-x1)
y-4=10(x-3)
y-4=10x-30
y=10x-30+4
y=10x-26
10. Which set of ordered pairs is linear?
A. {(2, 1), (5, 1), (6, 1)}
8. {(1, 4), (0, 0), (1, 6)}
C:{(3,5), (1, 0), (2, 4)}
D.
{(0, 0), (1, 3), (2, 7)}
Answer:
A
Step-by-step explanation:
The line stays straight because of the y placement being 1
Answer:
{(2, 1), (5, 1), (6, 1)}
Step-by-step explanation:
A linear function shows as a straight line.
Option A's y-values are the same. If graphed, it would form a horizontal line.
See graph below.
Option A should be the correct answer.
Hope this helps.
Samantha earns $8 p;er hour as a cashier. Write an equation that shows her earnings (E) after 'h' hours
Answer:
E=8h
Step-by-step explanation:
Becuase the earings equal the $8 times the amount of hours she worked.
Please help! 20 points!
Answer:
i dont know sorry
Step-by-step explanation:
Estimate a 15% tip for a $66.60 restaurant bill.
a-$10.05
b-$6.70
c-$67.00
d-$100.50
What is the mean of the data? Weight of Dogs In the Pet Store Stem Leaves 0 3, 8 1 0, 1, 4, 7, 2 2, 4, 5 3 5 0 | 3 = 3 pounds 4 0 17 19.5 22 19
Answer:
THE ANSWER IS 19
I JUST DID IT
The mean of the dataset is 3.55
How to determine the mean?The dataset is given as:
0 | 3, 8
1 | 0, 1, 4, 7,
2 | 2, 4, 5
3 | 5 0
Remove the stems
3, 8
0, 1, 4, 7,
2, 4, 5
5 0
The mean is then calculated as:
Mean = Sum/Count
So, we have:
Mean = (3 + 8 + 0 + 1 + 4 + 7 + 2+ 4 + 5 + 5 + 0)/11
Evaluate
Mean = 3.55
Hence, the mean of the data is 3.55
Read more about mean at:
https://brainly.com/question/14532771
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Urgent!
E is directly proportional to F.
When E = 2, F = 8
(a) Find an equation for E in terms of F.
(b) Find the value of E when F = 30
(C) Find the value of F when E = 100
Answer:
a. 4×2 = 8
b. E = 120
c. F = 400
Please help me...will mark brainiest
Answer:
x²+24x+144
Step-by-step explanation:
x*x = x²
12 x 12 = 144
2(x*12) = 24x
hence the answer is x²+24x+144
Choose True or False A. There is 0.15 centimeter in 15 meters. B. Eight pounds is equal to 128 ounces. C. There are 108 inches in 9 yards. D. 16 kilometers is equal to 16,000 meters.
Answer:
B
Step-by-step explanation:
Eight pounds are equal to 128 ounces.
A) False
B) True
C) False
D) True
3. Askating rink charges a group fate of $9 plus a fee to rent each pair of skates. A family rents 7 pairs of skates and pays a total of $30.
Each skate rental is $______
Answer:
$3Step-by-step explanation:
Let the rental is x
The total is, the equation:
7x + 9 = 307x = 21x = 3Each skate rental is $3
7x+9=30
7x=30-9
7x=21
x=21÷7
x=3
