helpppppp nobody does this one either I don’t know whyyyyy
Answer:
-6±3i√2
Step-by-step explanation:
First we need to simplify the radical here which is √-288. We can make this i√288, and then further simplify by taking out 12 giving us 12i√2. Now we have
-24±12i√2/4
From here we just divide all the terms in the numerator by 4 and get -6±3i√2
A carpet is made with a blend of wool and other fibers. If the concentration of wool in the carpet is 75% and the carpet weighs
179 lb, how much wool is in the carpet?
Ib
Answer: 134.25 lb of wool in the carpet
Step-by-step explanation:
You must find 75% of the total weight.
Can you please help me with this
Answer:
im not sure on that one sorry
Step-by-step explanation:
Answer:
Q = 110
ST = 9
Step-by-step explanation:
Classify the polynomial 2x3 + 6x2 - 4 by the number of terms.
cubic
quadratic
binomial
trinomial
Answer:
cubic
Step-by-step explanation:
the highest degree is 3, so therefore it is cubic.
Answer:
Trinomial
Step-by-step explanation:
Question 2
In Question 1, what do you notice about the y-coordinates before and after a horizontal stretch? What do you notice about the x-coordinates
before and after a vertical stretch?
Answer:
The y-coordinates do not change under a horizontal stretch. The x-coordinates do not change under a vertical stretch.
Step-by-step explanation:
PLATO sample answer
Mark me Brainliest plz
Answer:
The y-coordinates do not change under a horizontal stretch. The x-coordinates do not change under a vertical stretch.
Step-by-step explanation:
plato answer
After a rotation, A(–3, 4) maps to A'(4, 3), B(4, –5) maps to B'(–5, –4), and C(1, 6) maps to C'(6, –1). Which rule describes the rotation? R0, 90° R0, 180° R0, 270° R0, 360°
Answer: R0, 270°
Step-by-step explanation: i have the answers to all the quetions
on the quiz/ assignments you doing. i can send u the l i n k if u want.
Answer:
R0, 270 is the correct Answer!
Step-by-step explanation:
Hope this helps =)
If you were to measure a person once a year, every year, from the ages of ten to twenty-five, would your ordered pairs of age and height represent a function? A. Yes B. No
Answer:
Yes.
Step-by-step explanation:
First, make a graph, or imagine one.
I'll be making an example graph that only goes up to 13 here.
Age - 10 11 12 13
Height
v
6ft
5ft
4ft
If we mark this graph with points, you will find that there is only 1 point on each age line!
Age - 10 11 12 13
Height
v
6ft *
5ft * *
4ft *
This means the answer is yes!
Answer:
yes
Step-by-step explanation:
i got the answer right on my test so i know its right
lim
t—>0 1-cos(2t) / sin^2 (11t)
Answer:
2/121
Step-by-step explanation:
Hello,
Hôpital's rule will help here.
[tex]\forall t \in \mathbb{R}^*\\\\f(t)=1-cos(2t)\text{ *** f is differentiable}\\f'(t)=2sin(2t)\\f''(t)=4cost(2t)\\f''(0)=4 \\ \\g(t)=sin^2(11t)\text{ *** g is differentiable}\\g'(t)=2sin(11t)\times 11 \times cos(11t)=2\times 11 sin(11t)cos(11t)\\\\g''(t)=2\times 11 (11cos^2(11t)-11sin^2(11t))\\g''(0)=2\times 11^2[/tex]
So the limit is 4/(2*121)=2/121
Thanks
A particle moves in the xy plane starting from time = 0 second and position (1m, 2m) with a velocity of v>=2i-4tj^
. Find
A. The vector position of the particle at any time t,
B. The acceleration of the particle at any time t,
Given :
A particle moves in the xy plane starting from time = 0 second and position (1m, 2m) with a velocity of v=2i-4tj .
To Find :
A. The vector position of the particle at any time t .
B. The acceleration of the particle at any time t .
Solution :
A )
Position of vector v is given by :
[tex]d=\int\limits {v} \, dt\\\\d=\int\limits {(2i-4tj)} \, dt \\\\d=(2t)i+\dfrac{4t^2}{2}j\\\\d=(2t)i+(2t^2)j[/tex]
B )
Acceleration a is given by :
[tex]a=\dfrac{dv}{dt}\\\\a=\dfrac{2i-4tj}{dt}\\\\a=\dfrac{2i}{dt}-\dfrac{4tj}{dt}\\\\a=0-4j\\\\a=-4j[/tex]
Hence , this is the required solution .
Al bought two model planes(p) for $7.95 each and some stickers(s).What is the equation of the total spent? and What was the cost of the stickers if the total spent was $24.65?
Answer:
First off you have to start with what you know. You know the two planes cost 7.95 and you know the total is 24.65
Then to find the price of the stickers you subtract the 7.95 from 24.65=16.70
So your equation to start is
7.95+x=24.65
Subtract 7.95 from both sides
x=16.7-
Hope this helps and good luck
Step-by-step explanation:
There are 5 times as many yellow labs as terriers in the dog park. A total of 18 dogs. How may more terriers
Answer:
There are 3 terriers
Step-by-step explanation:
3 terriers * 5 = 15 yellow labs
15 yellow labs + 3 terriers = 18 dogs
Which conversion involves multiplying by a positive power of 10 select all that apply
Answer:
A, C, D
Explanation:
If you are converting a larger unit to a smaller unit you multiply, if you are converting a smaller to larger, you divide.
Answer:
A,C,D
HOPE THIS HELPS IT SURE DID HELP ME WAIT I KNEW THE ANSWER ANY WAY NVM IGNORE THAT PLZ STAR TO SEE IF IT WAS RIGHT AND IF IT HELPED YOU.
sorry for the caps lock it was on when I was typing:)
LOL
Identify the number as real, complex, pure imaginary, or nonreal complex.
- 169
Answer:
real
Step-by-step explanation:
-169 is a negative integer and integers are real numbers
Answer:
real
Step-by-step explanation:
FIND THE RATE
PLSSSS HELPP ASSPPPP!!!!
Answer:
13
Step-by-step explanation:
26/2
39/3
78/6
130/10
146/12
All = 13
Answer: 13
Step-by-step explanation:
26/2
hellppp I have to do estimate
Solve this plss I need help :c
2/3(3х + 9) = - 2(2x + 6)
Answer:
[tex]x=-3[/tex]
Step-by-step explanation:
[tex]\frac{2}{3}\left(3x+9\right)=-2\left(2x+6\right)[/tex]
Expand:
[tex]\frac{2}{3} *3x+\frac{2}{3} *9=-2*2x+(-2)(6)[/tex]
[tex]2x+6=-4x-12[/tex]
Subtract 6 from both sides:
[tex]2x+6-6=-4x-12-6[/tex]
[tex]2x=-4x-18[/tex]
Add 4x to both sides:
[tex]2x+4x=-4x-18+4x[/tex]
[tex]6x=18[/tex]
Divide both sides by 6:
[tex]\frac{6x}{6}=\frac{-18}{6}\\[/tex]
[tex]x=-3[/tex]
The coordinates of quadrilateral ABCD are
A(1,3), B(7,5), C(3,2) and D(-3,-1).
a) Do the diagonals bisect each other?
Choose:
Yes
Ο No
b) What is the midpoint of the longer
diagonal?
Choose
(2,2) (5,2) (2,1)
(5,1)
Find the shortest distance between the points
(-5,-3) and (2,-4).
Choose
OVIO
o 49
V50
0 58
The point (7,2) lies on a circle. What is the length of
the radius of the circle if the center is located at
(2,1)?
Choose
26 34 82 190
Answer:
no
Step-by-step explanation:
blah blah blah balh blah
What is an equation of the line that passes through the points (5,8) and (5,3)
Answer:
X= 5
Step-by-step explanation:
Write in slope-intercept form, y=mx+b.
Hope this helps!
What time do you wake up? Is it Quantitative data or categorical data?
Answer:Quantitative data
Step-by-step explanation:
Answer:
Quantitative data
*YELLS* Have A GOOD DAY SIR *SLAMS DOOR*lol I watch way to much Willy Wonka|6x|+3=21 solve for X (absolute value)
Answer:
[tex]x=3\text{ or } x=-3[/tex]
Step-by-step explanation:
So we have the equation:
[tex]|6x|+3=21[/tex]
First, subtract 3 from both sides:
[tex]|6x|=18[/tex]
Definition of absolute value:
[tex]6x=18\text{ or } 6x=-18[/tex]
Divide both sides by 6 for both equations:
[tex]x=3\text{ or } x=-3[/tex]
And we're done!
Answer:
[tex]x=3[/tex] and [tex]x=-3[/tex]
Step-by-step explanation:
[tex]\left|6x\right|+3=21\\[/tex]
Subtract 3 to both sides:
[tex]\left|6x\right|+3-3=21-3\\|6x|=18[/tex]
Apply the absolute rule: If |a| = b and b > 0, a = -b or a = b.
Thus,
Case 1:
[tex]6x=18[/tex]
Divide both sides by 6:
[tex]x=3[/tex]
Case 2:
[tex]6x=-18[/tex]
Divide both sides by 6:
[tex]x=-3[/tex]
What is the value of x?
Answer:
12
Step-by-step explanation:
As we can see in the picture, the bigger pentagon is a scale copy of the smaller one with a scale factor of 2. Hence, all the sides on the smaller pentagon multiplied by 2 gives us the bigger pentagon. We can find the scale factor by looking at the biggest side of the pentagon. Hope this helped, Thank you.
If you cannot see the pic:
Points A,B, and C are collinear. Point B is between A and C. Find the length indicated.
BC = x + 15, AC = 14, and AB = x + 7.
Find AB
a) 4
b) 5
c) 3
d) 6
Answer:
A. 3
Step-by-step explanation:
Given,
[tex] BC = x + 15 [/tex],
[tex] AC = 14 [/tex]
[tex] AB = x + 7 [/tex], since A, B, and C are collinear, therefore, based on the segment addition postulate:
[tex] AB + BC = AC [/tex].
Thus, substituting the values into the equation, we have:
[tex] (x + 7) + (x + 15) = 14 [/tex]
Solve for x.
[tex] x + 7 + x + 15 = 14 [/tex]
[tex] 2x + 22 = 14 [/tex]
Subtract 22 from both sides
[tex] 2x = - 8 [/tex]
Divide both sides by 2
[tex] x = -4 [/tex]
[tex] AB = x + 7 [/tex]
Plug in the value of x
[tex] AB = -4 + 7 = 3 [/tex],
Write an equation in slope-intercept form that passes through the point (3,7) and has a y-intercept of 4
Answer:
Step-by-step explanation:
(0, 4) (3, 7)
(7 - 4)/(3-0) = 3/3 = 1
y - 1 = x - 0
y = x + 1
A seven-year medical research study reported that women whose mothers took the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as were women whose mothers did not take the drug. a. This study compared two populations. What were the populations? b. Do you suppose the data were obtained in a survey or an experiment? c. For the population of women whose mothers took the drug DES during pregnancy, a sample of 3980 women showed that 63 developed tissue abnormalities that might lead to cancer. Provide a descriptive statistic that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
Answer:
The classification of the set of circumstances is presented in the following subsections of the understanding.
Step-by-step explanation:
A 7-year health research project revealed that individuals for whom the mom took DES throughout pregnancy seem to have been twice as probable as women for whom the mothers didn't use the medication to establish tissue irregularities that could cause cancer.
(a)
Women with whom the mothers have taken DES throughout pregnancy as well as women where its mothers haven't taken DES during pregnancy.
(b)
The information collected seems to have been a sample or survey.
(c)
A sampling unit of 3980 (women) showed that performance 63 industrialized tissue irregularities that could contribute to disease (cancer) in the proportion of females with whom the mom brought the powerful DES all through pregnancy.
The proportion of abnormalities in tissues established by females does seem to be:
= [tex]\frac{63}{3980}[/tex]
= [tex]0.015829[/tex]
Of every thousand women, 15.8 established tissue abnormalities.
What does the ordered pair (5, 110) represent in the context of this problem?
Answer:
A. (1,22), (2,44), (3,66)
B. 5 shirts were bought and the total was $110
C. 4
Step-by-step explanation:
A.
For every 1 increase in the x variable(the first number) the y variable(the second number) increases by 22
B.
The pair represents that he got 5 shirts and that he paid $110. you can check your work by seeing that if yoiu divide 110 by 5 you get the price of the t-shirt; $22
C.
If each shirt is $22 you divide $88 by $22 and get the amount of t-shirts bought; 4
Simplify the expression of 23+4(x+2)
Answer:
31+4x
Step-by-step explanation:
23+4(x+2)
23+4x+8
23+8=31
31+4x
hope this helps you :)
pls give me brainlest ;)
Answer:
Simplify the expression of 23+4(x+2)
We distribute 4 (x+2)
So 23+ 4×x+4×2
So 23 +4x+8
We simplify
(we calculate the numbers with the numbers and we leave 4x like that because there is no other x with which to calculate)
SO 4x+31
can someone please help me with this
Isaiah earned a score of 61 on Exam A that had a mean of 78 and a standard deviation of 10. He is about to take Exam B that has a mean of 200 and a standard deviation of 50. How well must Isaiah score on Exam B in order to do equivalently well as he did on Exam A? Assume that scores on each exam are normally distributed.
If an aircraft is present in a certain area, a radar correctly registers its presence with probability 0.99. if it is not present, the radar falsely registers an aircraft presence with probability 0.10. we assume that an aircraft is present with probability 0.05. what is the probability of false alarm (a false indication of aircraft presence), and the probability of missed detection (notng registers, even though an aircraft is present)? what is the probability that an aircraft is present given that the radar registers a presence?
Answer:
A) 0.005
B) 0.001
C)0.0495
Step-by-step explanation:
Let A be the event that an aircraft is present and let B be the event the radar registers its presence.. Thus;
P(A) = Probability that an aircraft is present
P(A') = Probability that an aircraft is not present
P(B) = Probability that the radar generates an alarm
P(B') = Probability that the radar doesn't generate an alarm
Thus from what we are given, we have;
P(A) = 0.05
P(A') = 0.95
P(B) = 0.99
P(B') = 0.01
P(B|A') = 0.1
A) Probability of a false alarm will be;
P(A' ∩ B) = P(A) × P(B|A')
P(A' ∩ B) = 0.05 × 0.1 = 0.005
B) probability of missed detection is;
0.1 × (1 - 0.99) = 0.001
C) probability that an aircraft is present given that the radar registers a presence will be;
P(A ∩ B) = P(A) × P(B)
P(A ∩ B) = 0.05 × 0.99
P(A ∩ B) = 0.0495
A chemist mixes 10 liters of 20% solution with x liters of a 35% solution. Which of the folling expressions represents the total number of
liters in the mixture?
Answer:
(10 + x) liters represents the total number of liters in the mixture
Step-by-step explanation:
Here, we want to find and expression representing the total number of liters in the solution; we proceed as follows;
The simple answer here is the sum of the liters of both solutions.
Mathematically, that would be 10 + x liters
We should understand that we do not have anything to do with the concentration of either solution and thus, the total amount in liters of both will be 10 + x liters
please see image above. can someone please explain how C and E are correct? i don’t understand because i thought it was B. tysm
Step-by-step explanation:
All u have to is subject t from that formula.
D=C( 1 + rt/100)
D/C = 1+ rt/100
D/C - 1 = rt/100
So,
When u multiply the equation by 100 and divide by r it will be as follows.
(D/C -1)100/r = t
It is the answer C.
And now to get the answer E,
we have the equation as t = (D/C-1) 100/r
First solve what inside the bracket.
D/C - 1
D/C - C/C
(D-C)/C
So when u put that to the above,
t= (D-C/C) 100/r
Now all u have to do is just multiply
t= 100(D-C) / Cr
