Answer:
The function, h(x) = x³ - 2x² - 4x + 5 has 2 or 0 positive real zeros and exactly 1 negative real zero.
Step-by-step explanation:
Using Descartes' Rule of Signs
For the positive-root case, the sign on x is not changed:
h(x) = x³ - 2x² - 4x + 5
Counting the number of sign changes while ignoring the actual coefficients; there are two sign changes.
Thus, the function, h(x) has 2 or 0 positive real zeros
For the negative root case, h(-x), that is changing the sign on x
h(-x) = (-x)³ - 2(-x)² - 4(-x) + 5
h(-x) = -x³ - 2x² + 4x + 5
Counting the number of sign changes while ignoring the actual coefficients; there is only one sign change.
Thus, the function, h(x) has exactly 1 negative real zero.
Subtract ( -43) from ( -21)
Answer:
-64
Step-by-step explanation:
-21--43=22
Answer:
22
Step-by-step explanation:
if you are subtracting a minus number it is the same as addition
Pls help. 15 points. For math
Answer:
y=8x+3
Step-by-step explanation:
Answer:
I think it is the 2 one:) SORRY IF IT'S WRONG!!! :(
Step-by-step explanation:
PLEZZ MARK ME AS BRAINLYEST!! PLEZZ
I AM REALLY SICK SO IF YOU MARK ME AS BRAINLYEST AND GIVE ME FIVE STARS THAT WOULD REALLY MAKE MY DAY!! THANK YOU!!! :)
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i need help with this i don’t understand
Answer:
15
measure of third side is = 25^2 - 20^2
= 625 - 400
= 225
= √225
= 15
hope it helps
Sam has 30.00 in his checking account and earns 8.00 per week as a allowance how many weeks will it take Sam to earn 78.00
Answer:
6 weeks
Step-by-step explanation:
end goal = $76
how much he has in the bank = $30
how much he earnes per week = $8
first, subtract 30 from 78 to figure out how much he has left to ear:
$78 - $30 = $48
then take the difference and divide it by 8 since he earned $8 per week:
48 ÷ 8 = 6
It will take him 6 remaining weeks to complete his end goal.
are nike air flights jordan
Answer:
the shoes is looking good and it is suparb
A person invests 1500 dollars in a bank. The bank pays 4% interest compounded
annually. To the nearest tenth of a year, how long must the person leave the money
in the bank until it reaches 1800 dollars?
Answer:
4.6 years
Step-by-step explanation:
We are to calculate the time in years.
The formula is given as:
t = ln(A/P) / n[ln(1 + r/n)]
Where:
A = Amount after t years = 1800
P = Initial Amount invested = 1500
r = Interest rate = 4%
n = Frequency at which the interest was compounded = Annually = 1
First, convert R percent to r a decimal
r = R/100
r = 4%/100
r = 0.04 per year,
Then, solve our equation for t
t = ln(A/P) / n[ln(1 + r/n)]
t = ln(1,800.00/1,500.00) / ( 1 × [ln(1 + 0.04/1)] )
t = 4.649 years
Approximately = 4.6 years
Find the answer for m∠EFD
Given:
In triangle DEF, [tex]DE = EF[/tex] and [tex]m\angle 98^\circ[/tex].
To find:
The measure of angle EFD.
Solution:
In triangle DEF,
[tex]DE = EF[/tex] (Given)
It means triangle DEF is an isosceles triangle.
[tex]m\angle EDF=m\angle EFD[/tex] (Base angles of an isosceles triangle are equal)
Using angle sum property in triangle DEF, we get
[tex]m\angle DE F+m\angle EFD+m\angle EDF=180^\circ[/tex]
[tex]98^\circ +m\angle EFD+m\angle EFD=180^\circ[/tex]
[tex]2m\angle EFD=180^\circ-98^\circ[/tex]
[tex]2m\angle EFD=82^\circ[/tex]
Divide both sides by 2.
[tex]m\angle EFD=\dfrac{82^\circ}{2}[/tex]
[tex]m\angle EFD=41^\circ[/tex]
Therefore, the measure of angle EFD is 41 degrees.
ARE THESE FUNCTIONS YES OR NO? PLS HELP ME
In 4-6, solve each system of equations by using elimination. 4. y - X= 28 y + x = 156
Answer: x=−27y−X
Step-by-step explanation:
please help its due in 5 minutes
Answer: The answer is net B
Step-by-step explanation: If you look at the net it has one rectangle for the base and four triangles for the side. Then when you look at the completed figure the shapes are the same. Also all the other nets have the wrong shapes.
Hope this helps.
(Edit- was lookin at the wrong stuff answer = d lol sorry
A company sells widgets. The amount of profit, y, made by the company, is related to
the selling price of each widget, x, by the given equation. Using this equation, find out
what price the widgets should be sold for, to the nearest cent, for the company to
make the maximum profit.
y = x^2+ 83x – 609
Answer:
Step-by-step explanation:
y=x^2+83x-609
dy/dx=2x+83
d2y/dx2=2
Since acceleration is positive, when dy/dx=0, it will be a global minimum. Also since acceleration is a positive constant there is no maximum profit as it is always increasing.
Unless there was a typo in your equation...
Answer: 41.5
for y=-x^2+83x-609 because it appears that there is a typo
pls pls help
A rectangular piece of paper with length 39 cm and width 20 cm has two semicircles cut out of it, as shown below.Find the area of the paper that remains. Use the value 3.14 for π , and do not round your answer. Be sure to include the correct unit in your answer.
Answer:
The area of the piece of paper is 466 cm²
Step-by-step explanation:
First you would want to find the area of the rectangle
39x20=780 cm²
Both semi-circles are the same, so you can just find the area of the whole circle
The diameter is 20 cm so you would use 10 as the radius
A=πr²
A=3.14x10²
A=3.14x100
A=314
Then you have to subtract the area of the circle from the area of the rectangle.
780-314=466
The area of the piece of paper is 466 cm²
can someone pls help need it ASAP
:)
it is not
x=-13.4, y=-3.2
Answer:
x = -9
y = 2
Step-by-step explanation:
x + y = -7 then x = -y - 7
-x + 4y = 17
substitute for x:
-(-y - 7) + 4y = 17
reduce:
5y = 10
y = 2
x = -2 - 7
x = -9
check:
-9 + 2 = -7
-7 = -7
-(-9) + 4(2) = 17
17 = 17
A right triangle is a triangle that includes one right angle, measuring 90 degrees. It doesn't matter which of the three angles is 90 degrees. As long as one of them is, it's a right triangle.
What does a triangle need to have in order to be a right triangle?
A.two sides of equal length
B.one 90 degree angle
C.one obtuse angle
D.three sides of equal length
Determine the domain of the following graph:
please help help help
Answer:
The answer is All real numbers
Answer:
[-5, 11]
Step-by-step explanation:
The domain is all the possible x values in a graph. In this case the domain goes from -5 to 11 if I am reading the graph right.
SOMEONE PLEASE ANSWER THIS CORRECT AND ASAP PLEASE TAKE A PICTURE OF IT AND DO IT FROM THERE TO POINT THE RED DOTS SO ITS NOT CONFUSING AND I CAN SEE HOW I CAN PUT IT ON AND PLEASE JUST HELP ME I WILL GIIVE YOU A GOOD RATE, GIVE YOU A THANKS, AND MARK YOU BRAINLIEST JUST ASNWER THIS CORRECTLY AND ASAPPPPPPPP PLEASE!!!!!!!!!! I KNOW I POSTED THIS AGAIN BUT THIS IS PAST DUE AND I NEED SO MUCH HELP THIS IS THE LAST ONE!!!!
An online furniture store sells chairs for $150 each and tables for $550 each. Every day, the store can ship at most 32 pieces of furniture and must sell no less than $7200 worth of chairs and tables. If 22 chairs were sold, determine all possible values for the number of tables that the store must sell in order to meet the requirements. Your answer should be a comma separated list of values. If there are no possible solutions, submit an empty answer.
Find the value of x and justify your answer
Answer: your question was to say that you were in the person that was in park today and i got a hold on the door and I got it back to you in the park and then I saw you on the way to your house to see if I was going back to the school to go get home with me so so we could go do that
Step-by-step explanation:
Answer:
a.
2x+4x+3x=180 sum of interior angle of the triangle is 180
9x=180
x=180/9=20
b.
x-20+x+10+x-20=180sum of interior angle of the triangle is 180
3x-30=180
3x=180+30
x=210/3=70
c.x+10+x+20+x=180 linear pair
3x+30=180
3x=180-30
x=150/3=50
pls help me to solve this
Answer:
Step-by-step explanation:
I’m not smart
Write -2i + (9 − 3i) − (6 − 10i) as a complex number in standard form.
Answer:
3+5i
Step-by-step explanation:
-2i+(9-3i)-(6-10i)
expand parenthesis
-2i+9-3i-6+10i
imagine that the i takes place of an x, so you can just add like terms
3+5i
Hope that helps :)
Answer:
Step-by-step explanation:
b/c you can treat the real and imaginary parts separate, you can just add up real and imaginary like terms of expressions
9-6=3
-2i-3i+10i =5i
3+5i :)
given f(x)=4x^2 and g(x)=-1/5x^2 choose true or false
A f(x) and g(x) have the same axis of symmetry
B f(x) is wider than g(x)
C f(x) is narrower than g(x)
it is gonna be c trust me I know for a fact
Step-by-step explanation:
Hi...
You ask any irrelevant Question, that is why they get deleted.
The wheels rotate 34 times when he pedals ___times
Answer:
The wheels rotate 14 times.
Can all polynomials be factored?
Answer:
yes they can
Step-by-step explanation:
four friends went out for burgers after the basketball game. They split the cost of the bill evenly between them, and each person ending up paying $12. How much was the total bill?
Answer:48
Step-by-step explanation:12 times 4 is 48
Got some easy questions, to do.
Will give, Branliest.
:)
1.)3
2.)6
3.)9
4.)12
5.)18
6.)?
7.)?
Answer:
a = 27
b = 225
c = no
Step-by-step explanation:
a = 3 multiplied by 9
b = 3 multiplied by 75
c = understand the pattern, then imagine how will it look with 41 beads
PLS HELP. URGENT!!!! I’ll give whatever points
Anna built a prism (Prism A) out of a cube of wood. The side length of the cube measured 18 inches in length. Anna built another prism (Prism B) with the same dimensions as the cube, except she doubled its height. How does the volume of the two prisms compare? Question 6 options: The volume of prism B will triple. The volume of prism B will double. The volume of prism B will decrease. The volume of prism B will be cut in half
Answer:
The volume of the prism B will double
Step-by-step explanation:
The local library does children's plays every 18 days, and storybook readings every 5 days. If they both start on the first day of the month, how many days will it take for them to happen on the same day again?
Answer: 90 days
Step-by-step explanation:
Given
Children's play occurs every 18 days
Storybook readings occur every 5 days
Suppose after the first day both will occur after x days
[tex]\Rightarrow x=\text{LCM of }18\ \text{and}\ 5\\\Rightarrow \text{LCM}(5,18)=90\ \text{days}[/tex]
It will take 90 days to happen again
If your driving 60miles an hour and you drive for 1hour how far do you travel?
Answer:
60 miles
Step-by-step explanation:
There are two ways to solve this:
1. They tell you that you drive at 60 miles an hour, so , in an hour, you drive 60 miles.
2. Is the way you should use in the future:
Distance = speed * time
Substitute the speed and times.
Distance = 60 * 1
Thus, you drive 60 miles in one hour
The distance that should be traveled be 60 miles
As we know that
[tex]Speed = \frac{distance}{time}[/tex]
Here
speed be 60 miles per hour
And, the time should be one hour
So, the distance should be
[tex]= 60\ miles\ per hour \times one\ hour[/tex]
= 60 miles
Therefore the distance that should be traveled be 60 miles
Learn more about the distance here:brainly.com/question/23774048
please help if you can?
Answer and Step-by-step explanation:
The range would be [-5, 0]
This is because the points are included, and this is how far the graph's y-values go.
The range is based of the y-values of the graph, in which it looks for the greatest y value of the graph and the smallest y value of the graph.
#teamtrees #PAW (Plant And Water)