Answers
Answer:
A
Step-by-step explanation:
Related Questions
Every unitary operator U : X → X is normal. b) A matrix is unitary if and only if it is invertible. c) If two matrices are unitarily equivalent, then they are also similar. d) The sum of self-adjoint operators is self-adjoint. e) The adjoint of a unitary operator is unitary. f) The adjoint of a normal operator is normal. g) If all eigenvalues of a linear operator are 1, then the operator must be unitary or orthogonal. h) If all eigenvalues of a normal operator are 1, then the operator is identity. i) A linear operator may preserve norm but not the inner product.
Answers
for the following reasons:
Is 7/10 a simplest form
Answers
Answer:
710
Step-by-step explanation:
Detailed Answer: The fraction 710 is already in the simplest form, so it isn't possible to reduce it any further.
The volume of the following solid figure could be found by multiplying the area of its circular base by the height of the cone. True False
Answers
Answer:
its false
Step-by-step explanation:
Brainly is so bad. They are deleting all of these questions like ITS MY HOMEWORK AND I NEED HELP THAT WHAT THE APP IS FOR??????? STOP DELETING QUESTIONS BECAUSE THERE ARE SOME KIDS CRYING BECAUSE THEY JUST CANT UNDERSTAND IT AND THEY NEED AN EXPLANATION BRAINLY IS GETTING WORSE AND WORSE.
Answer:
The answer to this question is FALSE
hope you have a nice day!
Indicate the general rule for the arithmetic sequence with a3 = -12 and a8 = -37
Answers
Answer:
The general rule is [tex]a_n = -2 - 5(n-1)[/tex]
Step-by-step explanation:
Arithmetic sequence:
In an arithmetic sequence, the difference between consecutive terms is always the same, and this difference is called common difference.
The general rule of an arithmetic sequence is given by:
[tex]a_{n} = a_1 + (n-1)d[/tex]
In which [tex]a_1[/tex] is the first term and d is the common difference.
We can also find the nth term as a function of a term m, using:
[tex]a_n = a_m + (n-m)d[/tex]
a3 = -12 and a8 = -37
First we find the common difference. So
[tex]a_n = a_m + (n-m)d[/tex]
[tex]a_8 = a_3 + (8-3)d[/tex]
[tex]-37 = -12 + 5d[/tex]
[tex]5d = -25[/tex]
[tex]d = -\frac{25}{5}[/tex]
[tex]d = -5[/tex]
So
[tex]a_n = a_1 - 5(n-1)[/tex]
Finding the first term:
[tex]a_n = a_1 - 5(n-1)[/tex]
Since [tex]a_3 = -12[/tex]
[tex]a_n = a_1 - 5(n-1)[/tex]
[tex]a_3 = a_1 - 5(3-1)[/tex]
[tex]a_1 = a_3 + 10 = -12 + 10 = -2[/tex]
So the general rule is:
[tex]a_n = a_1 - 5(n-1)[/tex]
[tex]a_n = -2 - 5(n-1)[/tex]
What is the slope of the line that passes through the points (-3, -3)(−3,−3) and (-18, -23) ?(−18,−23)? Write your answer in simplest form.
Answers
Answer:
[tex]\frac{4}{3}[/tex]
Step-by-step explanation:
1. the requred slope can be calculated using the formula:
[tex]slope=\frac{|y_1-y_2|}{|x_2-x_1|};[/tex]
2. according to the formula above:
slope=(23-3)/(18-3)=20/15=4/3
Acellus
Find the lateral area of this cone.
Leave your answer in terms of 7.
24in
10 in
T ㅠ
Hint: Lateral Area of a Cone = more
Where e = slant height
Enter
Answers
Answer:
24 in
Step-by-step explanation:
i donk know
its a guess
Answer: 260
Step-by-step explanation:
what is the ans and pls explain
Answers
You are buying shoes online. The selling price is $29.99. The sales tax is 6.5% What is the total cost? Round to the nearest penny, if necessary.
Answers
1.94935+29.99 =31.93935 - rounded = 31.94 cents
Answer:
hjvcwhcd
Step-by-step explanation:
hccdw u hvucoijihcxpoiyutrdjrggggggggggggggggggggggggggggggggggggggg
The only solution to x^2+bx+c=0 is x=5 find a and b
Answers
Answer:
b=-10
c=25
Step-by-step explanation:
if the only solution is 5 so
x^2+bx+c=(x-5)²=x²-10x+25
b=-10
c=25
what is the value of the expression below? (64^3)^1/6
Answers
Answer:
(64^3)^(1/6)
=(64)^(3×1/6)
=(64)^(1/2)
=(8^2)^(1/2)
=(8)^(2×1/2)
=8^1
=8
8 is the correct answer of your question...
Answer:
8
Step-by-step explanation:
Remember the phrase "power to a power means to multiply the exponents"
That is, if you have a number (call it x) raised to a power (call it b), and that whole expression is raised to a power (call it c), it's the same as that number x raised to the power of the product of those two powers.
[tex](x^a)^b = x^a^b[/tex]
Here's an example showing to give some intuition behind this (and a way to derive the above formula if you forget it):
[tex]x^3 = x*x*x\\(x^3)^2 = (x*x*x)^2 = x*x*x*x*x*x = x^6[/tex]
Or more simply,
[tex](x^3)^2 = x^(^3^*^2^) = x^6[/tex]
So in this case:
[tex](64^3)^\frac{1}{6} = 64^(^3^*^\frac{1}{6}^) = 64^\frac{1}{2} = 8[/tex] (remember a number raised the to the power of 1/2 is the square root of the number; in this case, the square root of 64 is 8)
What is the area? 20 km 13 km 16 km
Answers
determine if function. HELLPPP If you awnser correctly i will try and give you a brainlyyyy.
Answers
Answer: This relation is not a function
Step-by-step explanation:
To find out if a relation is a function, we need to use the vertical line test, which means each input value only has one output value. This graph does not pass that vertical line test.
Answer:
I believe it is a function
Step-by-step explanation:
Morgan is a teacher and takes home 87 papers to grade over the weekend. She can grade at a rate of 9 papers per hour. How many papers would Morgan have remaining to grade after working for 7 hours?
Answers
Answer: 24
Step-by-step explanation: Delta math a=78+(7−1)(−9)
Answer:
2369.9
Step-by-step explanation:
Add it back
Hey there.
You might not want to here this. You might be looking for an answer to something, I know, I seem annoying rn.
I wanted to remind you to drink your water, eat, and give your body what it needs.
Your so loved. Trust me, because even though I don’t know who you are, I know you exist, and I love you.
Your so worthy!! You were put into this world for a reason. Don’t waste it. You only have one life. Have fun. Be reckless. Love yourself while your at it.
You are SO BEAUTIFUL QUEEN/KING. DONT LET ANYONE, AND I MEAN ANYONE TELL YOU OTHERWISE. repeat after me, I AM SO BEAUTIFUL
Your so smart and strong, you’ll get through this. I promise. Everything will be okay, just take a deep breath.
Give yourself breaks, you deserve it. So much. So much. You woke up today! Your reading this! I know waking up might be little for you. But I’m so proud of you. If you got ready I’m double proud of you. But if you didn’t, I’m still proud of you for being here, waking up, and tomorrow, push yourself to see if you can get ready.
Ik this is heck rn with everything going on, but you’ll get through it, we all will. We all will. Your not alone. Everyone is in heck rn. But we will get through it. We have vaccines and a amazing president. Just take a deep breathe and give yourself that cookie. You deserve it. I love you. Have an amazing day :)
Answers
use me as a like button for this question lol
Kaleb feeds 4 cups of pellets to his pet hamsters each day. He gives his guinea pig 3/4 as much food as he gives the hamsters.
How much food does the guinea pig receive each day?
Answers
Answer:
The hamster eats 1 cup a day I hope this helps
Step-by-step explanation:
17 cm
12 cm
5 cm
pls help
Answers
Answer:
30 cm²
Step-by-step explanation:
A = bh/2
A = (12 cm)(5 cm)/2
A = 30 cm²
⚠️ PLEASEEEE HELPPPPPP !!!!!
Answers
Answer:
Where is the pic
Step-by-step explanation:
[tex] \sqrt[3]{54} [/tex]
How do I solve?
Answers
Answer:
find the cubic root of the number given
How many recent graduates make less than 44,000 dollars
Answers
Answer:
C) 1,000 students
Step-by-step explanation:
Look at the bar graph and add up all the values less than 44,000.
:D
8. A plumber charges $85 for service calls plus $23 per hour for labor. Write and solve an equation to determine how much he would charge for a 24 hour service call.
Answers
Answer
24*108=x
Step-by-step explanation:
Lets say x is the total amount. and you need to find it for 24 and 85+23= 108 dollars. and so you multiplay 108 with 24. hope it helped
Help me please with this thank you
Answers
A golfer drives a ball 21 degrees from a line between the tee and the hole that is 380 yards away. How far is the ball from the whole if it landed 190 yards from the tee?
NEED WORK
Answers
Answer:
190
Step-by-step explanation:
its 170 because 380-170=190
How many integers are there from 1,000 through 9,999? (b) How many odd integers are there from 1,000 through 9,999? (c) How many integers from 1,000 through 9,999 have distinct digits? (d) How many odd integers from 1,000 through 9,999 have distinct digits? (e) What is the probability that a randomly chosen four-digit integer has distinct digits? What is the probability that a randomly chosen four-digit integer has distinct digits and is odd?
Answers
Answer:
(a) [tex]Total= 9000[/tex]
(b) [tex]Total = 4500[/tex]
(c) [tex]Total = 4536[/tex]
(d) [tex]Total = 2240[/tex]
(e) [tex]Pr = 0.5040[/tex] --- Probability of distinct digits
[tex]Pr = 0.2489[/tex] --- Probability of odd distinct digits
Step-by-step explanation:
Solving (a): Integers from 1000 to 9999
To do this, we simply add 1 to the range.
i.e.
[tex]Total= Range +1[/tex]
Range is the difference between the given interval.
[tex]Total= 9999 - 1000 +1[/tex]
[tex]Total= 9000[/tex]
Solving (b): Odd integers
This implies that the last digit must be any of 1, 3, 5, 7 and 9 (i.e. 5 digits)
The first digit can not be 0 (i.e any of the remaining 9 digits)
There is no restriction to other digits
Numbers from 1000 to 9999 are 4 digits, so the possible selection are:
[tex]First= 9\\Second = 10\\Third = 10\\Last = 5[/tex]
Total selection is:
[tex]Total = 9 * 10 * 10 * 5[/tex]
[tex]Total = 4500[/tex]
Solving (c): Distinct digits
This implies that all 4 digits are different and the first can not be 0.
So, we have:
[tex]First = 9[/tex] i.e. (1 - 9)
[tex]Second = 9[/tex] i.e. (0 - 9) minus the first digit
[tex]Third = 8[/tex]
[tex]Fourth = 7[/tex]
Total selection is:
[tex]Total = 9*9*8*7[/tex]
[tex]Total = 4536[/tex]
Solving (d): Odd digits that are distinct
This implies that the last digit must be any of 1, 3, 5, 7 and 9 (i.e. 5 digits)
The first digit can not be 0 and must be different from the last (i.e 8 digits)
The second digit must be different from the first and the last(i.e. 8 digits)
The third digit must be different from the three other digits (i.e. 7 digits)
So,
[tex]Total = 5 * 8 * 8 * 7[/tex]
[tex]Total = 2240[/tex]
Solving (e): Probability that a number is distinct
In (a), total possible digits is 9000
In (c), total distints are 4536
So, the probability is:
[tex]Pr = \frac{4536}{9000}[/tex]
[tex]Pr = 0.5040[/tex]
In (d), total odd distinct digits are 2240
So, the probability is:
[tex]Pr = \frac{2240}{9000}[/tex]
[tex]Pr = 0.2489[/tex]
50 points , please be honest
Answers
Answer:
7
Step-by-step explanation:
Answer:
[tex]\sqrt{15}[/tex]
Step-by-step explanation:
a^2+b^2=c^2
7^2+b^2=8^2
49+b^2=64
b^2=15
b=[tex]\sqrt{15}[/tex]
How many 3/8 mile laps does shandra need to run to complete 6 miles?
Answers
Answer:
16 more 3/8 mile runs
Step-by-step explanation:
We can just divide 6 by 3/8
6/1 divided by 3/8
6/1 * 8/3
48/3
16
PLEASE ANWSER ASAPPPP
Answers
Which expression is equivalent to -2 1/4 divide -2/3?
Answers
Answer:
-9/4 divide (-2/3)
Step-by-step explanation:
11. The product of 4.8 and 0.4 is 19.2
A) True
B) False
Answers
Answer:
false it's product is 1.92
Please help me!
Evaluate (-27)^1/3
1/3 is a fraction
Answers
Answer:
-3
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
-3 is correct, but why?
The reason is that the exponent 1/3 indicates a cube root and the cube root of -27 is -3.
[tex]x^\frac{1}{n}=\sqrt[n]{x}[/tex]
So [tex]x^\frac{1}{2}=\sqrt{x}[/tex]
[tex]x^\frac{1}{5}=\sqrt[5]{x}[/tex]
etc.
In ΔSTU, the measure of ∠U=90°, UT = 80, SU = 39, and TS = 89. What ratio represents the tangent of ∠S?
Answers
Answer:
[tex]\frac{80}{39}[/tex]
Step-by-step explanation:
SOHCAHTOA
O =Opposite
A = Adjacent
H = Hpotenuse
If we draw it out we can see that the opposite side is the UT and adjacent side is SU for ∠S.
When an angle is asked for like here is S so the opposite side of the angle is the opposite side. and the angle close to it is the adjacent. The biggest side is the hypotenuse.