Answer:
heffe nedda polla di cepta
Step-by-step explanation:
find all the real and complex zeros of f(x)=x^3-7x^2+4x-28
Answer:
For [tex]x \in\mathbb{C}[/tex]
[tex]x = -2i[/tex]
[tex]x = 2i[/tex]
[tex]x = 7[/tex]
Step-by-step explanation:
[tex]f(x)=x^3-7x^2+4x-28[/tex]
For [tex]f(x) = 0[/tex]
[tex]x^3-7x^2+4x-28 = 0[/tex]
We can easily factor the expression [tex]x^3-7x^2+4x-28[/tex] by grouping.
[tex]x^3-7x^2+4x-28 = (x^3-7x^2)+(4x-28) = x^2(x-7)+4(x-7) = \boxed{(x^2+4)(x-7) }[/tex]
Now we have
[tex](x^2+4)(x-7) = 0[/tex]
Therefore,
[tex]x^2+4 = 0 \text{ or } x-7 = 0[/tex]
So,
[tex]x^2 = -4 \implies x = \pm\sqrt{-4}[/tex]
Once [tex]\sqrt{-1} = i[/tex]
[tex]x = \pm\sqrt{-4} = \pm\sqrt{4}\sqrt{-1} = \pm 2i[/tex]
Paige was playing a trivia game where you gained points for correct answers and lost points for incorrect answers. At the start of round 3 she was at -700 points. During the round she answered eight 400 point questions correct and she answered nine 600 points questions incorrect. What was her score at the end of the round?
Answer:
7900 points
Step-by-step explanation:
Answer:
-2900 points
Step-by-step explanation:
8*400=3200
-700+3200=2500 points
9*600=5400
2500-5400= -2900 points
factor the expression
3x+7x 2
Answer:
100x^2
Step-by-step explanation:
(3x+7x)^2 I hope was the question...
=(3x)(3x)+(3x)(7x)+(7x)(3x)+(7x)(7x)
=9x^2+21x^2+21x^2+49x^2
=100x^2
can someone say something nice about my art?
I'll give brainlyest and all
Answer:dang I could never draw that only stick figure, that looks like the person who drew the Mona Lisa
Step-by-step explanation:
Answer:
I mean honestly, whoever says something mean about your art is just jealous because your art is absolutely amazing!!!
Step-by-step explanation:
I hope you have a good day!
Keep up the good work!
what is 14/100 as decimal need answers asap!!!
Answer:
0.14 is the answer as it is out of 100
Step-by-step explanation:
14/100
/100 as a decimal= 0.00
14/100 = 0.14
A juice shop needed 360 oranges to make 40 L of fresh-squeezed juice.
How many oranges would be needed to make 60 L of fresh-squeezed juice?
380 oranges
400 oranges
460 oranges
540 oranges
Answer:
Using direct proportion
40L was made from 360 oranges
1 L will have been made from (360/40) oranges = 9 oranges
60L will then be made from : 60 * 9 oranges = 540 oranges.
D.
Step-by-step explanation:
Answer:
D. 540
Step-by-step explanation:
✔
Place parentheses in the expression so that it equals the given value.
20 + 2 x 5 + 4^1
Value: 38
An auditorium has 962 seats. There are 37 rows, each with the same number of seats. How many seats are in each row?
Answer:
26 seats in each row.
Step-by-step explanation:
What is 3 fourths times one half
Answer: 0.375
Step-by-step explanation:
Solve. 3k -4 > 60 – k
Answer:
[tex]3k - 4 > 60 - k \\ = 3k + k > 60 + 4 \\ = 4k > 64 \\ = k > \frac{64}{4} \\ = k > 16[/tex]
Answer:
k > 16
Step-by-step explanation:
Solve it like an equation solving for k
Move the -4 to the other side by adding it to both sides.
3k -4 plus 4 > 60 plus 4 - k
You get 3k > 64 - k
now move the k from the right to the left by adding both sides by k
3k plus k > 64 - k plus k
You get 4k > 64
Now divide both sides by 4 so you get k alone on one side to solve for the inequality
4k/4 > 64/4
k > 16
Math took my sis phone to see if this works pls help!
Answer:
8+3*25, 83,2^3+3*5^2, are all equivalent
Step-by-step explanation:
Clare subscribes to an online music streaming service
for a yearly fee of $96. Starting next month, there will
be a 12% increase in the fee.
The ad for another music streaming service is shown
below. Should Clare switch? Explain.
Answer:
She should go with service 2 because it is, cheaper. Service 1 cost $107.52, but service 2 cost only $105.
Step-by-step explanation:
Cost now+increase$=new cost
(Part=percent*whole)
Increase=percent increase*cost now
i=12%*$96
i=0.12*96=$11.52
$96+11.52=107.52
Service two⬇️
8.72*12=$105
Yes Clare should switch to service 2 because; cheaper it costs only $105 which is lesser than $107.52
How to Calculate Yearly Fee?
To find the new cost, we will use the expression;
New Cost = Present Cost + increase
However,
Increase = percentage increase * present cost
Increase = 12% * $96
Increase = 0.12 * 96
Increase = $11.52
Thus;
New Cost = $96 + 11.52
New Cost = $107.52
For Service two;
We are told that digital streaming costs $8.75 per month. Thus;
Cost = 8.75 * 12
Cost = $105
Read more about Yearly fee at; https://brainly.com/question/25109150
#SPJ2
Ramona went out with her 3 sisters, they spent $58 plus
9% tax on their meal. They also left a 15% tip. If they divided
up the bill evenly, how much did each of them spend?
Ramona went out with her 3 sisters, they spent $58 plus 9% tax on their meal. They also left 15% tip. If they divided up the bill evenly, how much did each of them spend?
Solution:[tex] \frac{58 + 58(9\% + 15\%)}{3} [/tex]
[tex] = \frac{58 + 58(0.09 + 0.15)}{3} [/tex]
[tex] = \frac{58 + 58 \times 0.24}{3} [/tex]
[tex] = \frac{58 + 13.92}{3} [/tex]
[tex] = \frac{71.92}{3} [/tex]
[tex] = 23.97[/tex]
Answer:Each of them did spend $23.97
#CarryOnLearning
#AnswerForTrees
#BrainlyBookSmart
Is a 39 Celsius body temperature higher than normal 98 Fahrenheit??
Yes or No
Answer:
Yes.
Step-by-step explanation:
According to medical science, a body temperature considered normal (that is, below fever) in degrees Fahrenheit is 98ºF, while its equivalent in degrees Celsius is 36.6ºC. Therefore, a body temperature of 39ºC is higher than 98ºF, being equivalent to 102.2ºF.
This is verified by applying the conversion formula from Celcius to Fahrenheit:
(39 x 9/5) + 32 = X
39 x 1.8 + 32 = X
70.2 + 32 = X
102.2 = X
What is the opportunity cost of buying a $.75 soda every school day for three years
Answer:
$405
Step-by-step explanation:
What is the measure of angle L?
What is the length of JL?
What is the length of KL?
Please help
Answer:
53
Step-by-step explanation:
[tex]K+J+L = 180\\90 + 37 + L = 180\\L = 53[/tex]
Where is the blue dot on the number line? -6.5 ?
Answer:
-6.8 is the answer.
Step-by-step explanation:
It seems as if those ticks each represent 0.1. So go 0.3 down from -6.5!
Hope this helped! Have a great day!
Researchers often enter a lot of data into statistical software programs. The probability of making zero to two errors per 1,000 keystrokes is 0.51, and the probability of making three to five errors per 1,000 keystrokes is 0.25. Find the probabilities (per 1,000 keystrokes) associated with each of the following.
at most 2 errors:
at least 3 errors:
at most 5 errors:
more than 5 errors:
Answer:
at least 3
Step-by-step explanation:
Write 3/5 as a percent. Remember it has to be out of 100 so first make an equivalent fraction with 100 as your bottom number and then you can make it into a percent. Here’s an example: 9/10 = 90/100 = 90%
Answer:
60%
Step-by-step explanation:
3÷5 =
0.6
0.6×100
=60%
Please help with this question!!!!!
Answer:
30.6 - 306
Step-by-step explanation:
make it braintliest please
Answer:
Step-by-step explanation:
The answer are 30.6 and 306
Help Please!!! And can you explain how you got the answer?
Answer:
x=25
y= 64.5
Step-by-step explanation:
When lines are parallel, 2x=2(the number)
But, 2 isn't an angle. However, 50degrees is congruent to 2 since they are verticle angles.
2x=50
x=25
When lines are parallel, 2y+1=1(the number)
But, 1 doesn't have a verticle angle. However, 180-50 would be equal to 1
180-50=2y+1
130=2y+1
129=2y
y= 64.5
Why?
3. At what point on the curve x3 – y2 + x2 = 0 is the tangent line vertical?
(A) (0,0) only
(B)
(-1,0) only
(C) (1, sqrt2) only
(-1,0) and (0,0)
(E)
The tangent line is never vertical.
Over Fall break, Tory read 5 times as many pages as her brother and sister combined. Tory read 1840 pages and her brother read 200 pages. How many pages did her sister read? Write an equation and solve for the number of pages her sister read.
Answer
368
Step-by-step explanation:
1840÷5=368
Answer:
170,
Step-by-step explanation:
my explanation is commented on the other persons answer
Can sum one help pls I don’t understand
Where is the picture I don't see it
What separates the terms in this algebraic expression?
x + 3
HELPP MEEE
Answer:
I believe its the + symbol that separates it?
G**gle confirmed it I was right!!
if i wake at 5:15a.m. and my sister wakes 40 minutes before me. What time does my sister wakes?
Answer:
4:35
Step-by-step explanation:
5:15-0:40=4:35
What is the slope of line p?
Answer:
2/3
Step-by-step explanation:
Slope is rise over run which is 2/3
I need the corresponding letters on the equation.
A=
B=
C=
D=
E=
F=
G=
Answer:
A = 3
B = 1
C = 2
D = 10
E = 2
F = Not listed
G = 1
Step-by-step explanation:
[tex]\sqrt[3]{270x^5y^7} =\sqrt[3]{27*10x^5y^7}=3xy^2\sqrt[3]{10x^2y}[/tex]
How do I find percent change, so confused, please help.
Integers are __________ whole numbers
A. Always
B. Sometimes
C. Always positive
D. Always negative