Answer:
each side is 90 degrees
Step-by-step explanation:
make the brainliest?
what is 2+2 4+4 8+8 i need math help
Answer:
2+2 is 4 4+4 is 8 8+8 is 16
Step-by-step explanation:
if you need them added up here: 4+8 =12 12+16 = 28
if f(x)=5x-1, then f^-1(x)=
Answer:
F⁻¹(x) = [tex]\frac{1}{5} x +1[/tex]
Step-by-step explanation:
Inverse of 5 would be 1/5, and
Inverse of -1 would be +1
Hope this helps!
Answer:
-6
Step-by-step explanation:
if f(x)=-1
then you plug -1 into the equation then you get 5(-1)-1
then multiply 5 and -1 and get -5
so now youre left with -5-1
-5-1= -6
• What is the difference? Complete the equation.
–30 – (-10) =
?
Henry started an assignment at 4:13 PM and finished it at 5:41 PM.
How long did it take him? Give your answer in minutes.
How many complex roots does the polynomial equation below have?
X^7-3x^5+4^2-1=0
Answer:
4
Step-by-step explanation: 5 22 8 18 e
Graph the function and look for sign changes in the slope (easiest)
of the 7 roots 3 are real and 4 are complex
or the perferred way is to apply Descartes rule of signs
x^7-3x^5+4x^2-1=0 a typo in your function attached photos shows 4x²
(x^7) - (3x^5) +(4x^2) - (1) sign changes I see 3
then to find a bound on the number of negative roots
(-x^7) - (-3x^5) +(4x^2) - (1) = -x^7 + 3x^5 + 4x^2 - 1 I see 2 sign changes ??
there is at least 1 real root (due the odd highest power)
and either 0, 2, 4 or 6 complex roots
so 5 and 7 are out
still confused I used a polynomials root calculator
it said ther are three real roots (confirmed by the graph of the function)
and four comple roots (which I can't figure out from the graph)
Can somebody recommend me some horror, psychological, yandere, and/or thriller anime?
Anything besides these would be appreciated:
1. Angels of Death
2. Shiki
3. Re:Zero
4. Corpse Party
5. Magical Girl Site
6. Happy Sugar Life
7. SCHOOL-LIVE!
8. Talentless Nana
9. Higurashi
10. Wonder Egg Priority
11. Shadows House
12. Blood C
13. To Your Eternity
14. Puella Magi Madoka Magica
15. Another
16. The Lost Village
17. Serial Experiments Lain
18. Chaos;Head
Answer:
the future diary
Step-by-step explanation:
I watched Future Diary on Hulu, its a really good anime, its more of a yandere type of anime, hope you enjoy it!
5. Penny and her family went out to eat at a local
restaurant. Three of them ordered a fried shrimp
basket, but her daughter Meghan ordered a basket
of chicken tenders, which was $4.95 less than the
shrimp basket. If the total order before tax was
$46.85, what was the price of a shrimp basket?
Answer: $13.45
Step-by-step explanation:
1. 48.85 + 4.95 = 53.8
2. 53.8/4 = 13.45
3. Shrimp basket = $13.45
HELP THANK YOU SM !!!
Answer:
Your answer is C
Step-by-step explanation:
Katy put $3000 into his bank account. If the account pays 6% interest compounded continuously, when will it be worth $6000? Round to 3 decimal places.
Answer:
11.55 years
Step-by-step explanation:
Given data
Principal= $3000
Rate= 6%
Final Amount= $6000
expression for the time is given as
t = ln(A/P) / r
Substitute
t= ln(6000/3000)/0.06
t= ln(2)/0.06
t= 0.693/0.06
t= 11.55 years
Hence the time is 11.55 years
A $550 T.V is discounted by 30%. It is then discounted another 10%
Answer:
$346.5
Step-by-step explanation:
10% of $550 is 55
3*55 = 165
550 - 165 = $385
10% of $385 is 38.5
385 - 38.5 = $346.5
Have a nice day! :-)
A cognitive psychologist believes that a particular drug improves short-term memory. An experiment is conducted in which 8 randomly selected participants are given the drug and then given a short time to memorize a list of 10 words. Participants are then tested for retention 15 minutes after the memorization period. The number of words correctly recalled by each participant is as follows: 8, 9, 10, 6, 8, 7, 9, 7.
Over the past few years, the psychologist has collected a lot of data using this task with similar subjects. Although he has lost the original data, he remembers that the mean was 6 words correctly recalled and that the data were normally distributed.
Required:
a. On the basis of these data, what can we conclude about the effect of the drug on short-term memory? Use α = 0.05.
b. Determine the size of the effect.
Answer:
We can conclude that there is significant evidence that the drug improves short term memory.
Step-by-step explanation:
Given the sample data : 8, 9, 10, 6, 8, 7, 9, 7.
The sample mean, xbar = Σx / n
Sample standard deviation :
√Σ(x - xbar)²/ n-1)
Xbar = 8
Sample size, n = 8
Standard deviation, s = 1.31
H0 : μ = 6
H0 : μ > 6
The test statistic :
(xbar - μ) ÷ (s/√(n))
(8 - 6) / (1.31 / √8)
2 /0.4631549
Test statistic = 4.318
Decision region :
Reject H0 ; if Pvalue < α
α = 0.05
Pvalue from Tscore calculator :
df = n - 1 ; 8 - 1 =7
Pvalue(4.318, 7) = 0.001744
Pvalue < α ; We reject H0 ; and conclude that there is significant evidence that the drug improves short term memory.
A $120.00 pair of shoes at your nearby department store is marked up 4% and then is offered at 45% off. If sales tax is 13%, what is the total amount of tax that must be paid for this pair of shoes?
i need answer ASAP
Answer:
$26
Step-by-step explanation:
0.8(X - 3) = 18.4
X - 3 = 23
X = 26
irene bought 9/16 pound of wheat flour and 4/16 pound of rye flour to use in a bread recipe. How much flour did irene buy in all?
Irene bought 13/16 flour because you add 9/16 to 4/16 the denominator always stays the same when adding. 9+4=13 so the answer is 13/16
what is the area of the object above
Which ordered pair is a solution to the equation?
4y = -7x-5
(2,-2)
(1.3)
(-5,0)
(-3, 4)
Answer:
Step-by-step explanation:
4(4) = -7(-3) - 5
16 = 21 - 5
16 = 16
answer is D
Answer: (-3.4)
Step-by-step explanation: took test 6.02
Foundations wrap up Systems of Equations
What is the average of the integers from 25 to 41?
27
33
36
66
Answer:
B. 33
Step-by-step explanation:
The average of the terms of a contiguous subsequence of any arithmetic progression is the average of the first and last terms.
To see this, notice that if you remove 25 and 41 from your sequence, then the average of the remaining terms is still given by the average of the extreme terms
If the graph of y = - x ^ 2 translated horizontally 7 units to the right and translated vertically 6 units upwards, what’s the new equation?
9514 1404 393
Answer:
y = -(x -7)² +6
Step-by-step explanation:
Replacing x with (x-h) translates the graph h units to the right. You want h=7.
Replacing f(x) with f(x)+k translates the graph k units upward. You want k=6.
These transformations make the new equation be ...
y = -(x -7)² +6
Comprehension Question
Answer the question correctly for 30 dollars.
Read the sentence from paragraph 2.
If we continue throwing plastic bags in the garbage, our landfills will become towering mountains of trash.
What does this sentence show?
.A. the author’s use of humor to change the tone of the passage
B. the author’s use of exaggeration to make a point about landfills
C. the author’s use of details to support his argument for paper bags
D. the author’s use of description to provide personal experience on the topic
Answer:
B.
Step-by-step explanation:
Our landfills will not actually become towering mountains of trash, that's just a hyperbole used by the author to show the destructive impact that trash in large quantities can have.
Find the number of degrees in the missing angle of each triangle below
Answer:
A=44
B=58
C=103
D=118
E=138
F=22
Step-by-step explanation:
Hope this helps
Jamie practices singing for 45 minutes every day. Which equation represents the relationship between the total number of minutes (t ) and the number of days (d ) Jamie has practiced?
Answer:
t = 45d
Step-by-step explanation:
Number of days = d
Number of minutes = t
Number of minutes per day = 45 minutes
Total number of minutes of practice after d number of days will be :
t = number of minutes per days * Number of days
t = 45 * d
t = 45d
Does (3,8) make the Equation y=x-5 true?
Answer:
no
Step-by-step explanation:
Simplify the expression:
9f2 - 10 - 1 + 2/2 + -772
Answer:
4f^2-11
Step-by-step explanation:
An hour before show time, only 266 people are seated for a movie. . According to ticket sales, 93% of the people have yet to arrive. How many tickets were sold for the movie
Answer:
3800 tickets
Step-by-step explanation:
we are given that,
total people seated:266
yet to come:93%
so the percentage of people who have arrived is 100%-93%=7%
and one ticket for each people
therefore,
[tex] \displaystyle \begin{array}{ccc} \displaystyle \rm7\% \quad \text{People} \implies266 \: \text{tickets} \\ \displaystyle100 \%\: \quad \imath \imath \implies \frac{266}{7\%} \: \: \: \: \imath \imath \\ \\ \qquad \displaystyle \qquad\rm as \: \% = \frac{1}{100} \longleftarrow \frac{266}{ \dfrac{7}{100} } \\ \\ \displaystyle \rm \: by \: simplifying \: complex \: fraction\longleftarrow 266 \times \frac{100}{7} \\ \rm reduce \: fraction \longleftarrow 38 \times 100 \\ \rm simplify \:multiplication \longleftarrow3800\end{array}[/tex]
hence,
3800 tickets were sold for the movie
Answer:
Solutions given:
[100%-97%]=266people
7% =266people
Each people is 1 ticket.
266 people =266tickets
so
7% of people=266ticket
100% of people =266/7×100=3800tickets
3800tickets were sold for the movie
Construction crews are building a highway between the towns of Washington and Jefferson. Currently the highway is 16.25 miles long. Each month the total length increases by 4.5 miles. Which equation can be used to find y, the total length of the highway in miles after x months?
Learn with an example
Isaac earns $16 for each hour of babysitting. How many hours in all will it take Isaac to
earn a total of $32?
Answer:
It would take 2 hours for Isaac to earn $32
Step-by-step explanation:
16*2=32
Please help me with this:
A teacher decorated her classroom with 3 times as many balloons as paper fans. She used 12 fewer streamers than twice the number of paper fans. If the teacher had a total of 120 balloons, paper fans, and streamers, how many of each kind of decoration did she use?
Answer:
She used 22 paper fans, 66 balloons, and 32 streamers.
Step-by-step explanation:
In order to solve this problem, we need to find out the value of the paper fans. Because we need to find out the balloon amount, which is 3 times as much. The amount of streamers is 12 fewer than two times. We can't find it out just yet since we don't know the value of the paper fans. To find it out:
First, let's call the amount of paper fan as "x".
Then, we need to find out the amount of balloons. It is 3 times x. Which is the same as 3x.
The equation is now x + 3x + (?) = 120
We need to find out the amount of the (?).
So, to do that, it says the value is 12 fewer than 2 times the value of x. (x, because it is the amount of paper fans.)
It should be 2x-12.
Now, the equation is x+3x+2x-12=120.
Once we solve it, we know "x" is 22.
Now, we can multiply 3 by 22. Which is 66.
Then we can multiply 22 by 2, which is 44, and subtract 12, which is 32.
To double check, 22 + 44 + 32 = 120.
That's your answer!
Answer:
Step-by-step explanation:
its 22, and 66, and 32
Liam has 60 seeds and 12 plastic cups, and will plant the same number of seeds in each cup. Whicl equation shows the number of seeds in each cup? es 4 60 - 5 도 A 1260 5-12
Answer:
Number of seeds in each cup = 5 seeds in each cup
Step-by-step explanation:
Given:
Total number of seeds Liam has = 60 seed
Total number of plastics cup = 12 cups
Find:
Number of seeds in each cup
Computation:
Number of seeds in each cup = Total number of seeds Liam has / Total number of plastics cup
Number of seeds in each cup = 60 / 12
Number of seeds in each cup = 5 seeds in each cup
What voltage is required to force 4.5 amperes of current through an electric iron having a resistance of 25.5 ohms
Answer:
V = 114.75 Volts
Step-by-step explanation:
Ohm's Law V = IR
I = 4.5 A
R = 25.5 Ω
V = (4.5)(25.5)
V = [4×25.5] + [0.5×25.5]
V = 102 + 12.75
V = 114.75 Volts
In APQR, T, U and S are points of tangency. PR = 12 units. Find TR.
Answer:
TR = 3 units
Step-by-step explanation:
PR = 12 units
PS = 9 units
PU = PS = 9 units (tangents drawn from an external point are congruent)
RU = PR - PU
RU = 12 - 9
RU = 3 units
TR = RU = 3 units (tangents drawn form an external point of a circle)
TR = 3 units
Does someone need help with your math problems? I am using Gauthmath, ...https://s.tutorus.xyz/lp/invite?code=7JX9FQ
Answer:
ok
Step-by-step explanation: