Answers
Related Questions
1. If A is an invertible matrix, then what is det(A-1) equal to?
a) 0
b) det (A)
c) 1/det(A)
d) 1
Answers
Answer:
b) det (A)
Step-by-step explanation:
The determinant of the inverse of an invertible matrix is the inverse of the determinant: det(A-1) = 1 / det(A) [6.2. 6, page 265]. Similar matrices have the same determinant; that is, if S is invertible and of the same size as A then det(S A S-1) = det(A).
HAVE A GOOD DAY
PLEASE HURRY MY TEACHER IS ABOUT TO CALL ON ME. I NEED THE AREA
Answers
Answer:
65 i did it quick, i might be wrong
Step-by-step explanation:
bh/2
10*39/3
390/3
130/2=65
Convert 29.5 kilograms to grams.
Enter your answer in the box.
Answers
Answer:
29,500 g
Step-by-step explanation:
1 kg = 1000 g.
29500
Step-by-step explanation:
29 multiplied by 1000 is 29k grams and if we add the .5 kilos which is basically 500 grams we get 29500 grams.
HELP I HAVE 10 MINUTES! 20 POINTS!
MATH
Answers
Answer:
x=10rad3 and y=10
Step-by-step explanation:
Answer is in attachment . Hope it helps .
PLEASE HELP *78 POINTS* (WILL MARK BRAINLIEST)
Greg's favorite activities are bike riding and hip-hop dancing. He wants to try to do these activities for 6 hours each week. He would also like to try to burn off about 2,100 calories a week. He finds that biking uses about 425 calories each hour and hip-hop uses about 325 calories each hour. He wants to do bike riding for x hours and hip-hop dancing for y hours each week.
How much time should he spend doing each activity to accomplish his goal?
Answers
Answer:
4 hours ( i think sorry if wrong)
Step-by-step explanation:
Frederick and Fabricio enjoy catching Pokémon every day. They have developed different techniques of catching as many Pokémon as possible in an hour. Frederick represented the results of his catching techniques in the graph below, where the x-axis represents the time in hours and the y-axis represents the number of Pokémon in his pokeballs, while Fabricio decided to represent his results as the function f(t)=15t. After how many hours would Frederick have more Pokémon than Fabricio?
Answers
Answer:
sorry don't know what the answer is
Evaluate w - (w - 8) + v, when w = 11 and v = 16.
Answers
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Answer:
24
<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3
Can someone please help me with math.
Answers
Answer:
4: No
5: A
Step-by-step explanation:
4: The mapping does now represent a function. In a function each x value can only have 1 corresponding y value ( meaning that the x values can not repeat.) In the mapping the x value 3 corresponds with 2 y values therefore the mapping is not a function.
5.
Formula for volume of a cylinder = [tex]V=\pi r^2h[/tex]
Where r = radius and h = height
The cylinder shown has a given diameter of 22ft and a given height of 10ft
In order to use the formula we must convert the diameter to radius.
To do this we divide the diameter by 2 ( this is because the radius is equal to half the diameter )
so radius = 22/2 = 11
Now we plug in the dimensions into the formula
[tex]V=\pi 11^210\\11^2=121\\121*10=1210\\1210\pi[/tex]
Remember, it says " Leave your answer in terms of pi," therefore we do not apply pi and leave it as 1210π
We can conclude that the answer is A
Please help with this, will mark brainlist if correct
Answers
Answer:
the ratio is 24/7___,_______
Answer: 24/7
Step-by-step explanation:
Tan is Opp/Adj
Tan C is 24/7
A 14-foot ladder is leaned against a wall. If the base of the ladder is 6 feet from the wall, how high up the wall will the ladder reach?
Round to the nearest tenth if needed.
Answers
Answer:
23
Step-by-step explanation:
6th grade math plsssssss whoever does this I will give any vbuck card, or Microsoft. PLSSS HELP!
Answers
11/2=5 with a remainder of 1
you can get a total of 5 toppings
Answer:
5 toppings
Step-by-step explanation:
$20 - $9 = $11 dollars left for toppings
$11 ÷ 2 = 5.5
So, you can get 5 toppings with 50 cents left.
Have a great day!
58 Select the correct answer. An investment banking house conducted a survey to determine how two of its proposed investment plans for three different age categories are used. This table shows the responses they received. Plan l Plan II Neither 19 14 17 Ages 26-35 Ages 36-45 Ages 46-55 14 28 8 00 27 21 2 What percentage of people preferring plan I are from the 36-45 age group, and what percentage of people from the 46-55 age group prefer plan II? Round your answers to the nearest whole number. OA 2396 of people who prefer plan I are from the 36-45 age group, and 42% of people from the 46-55 age group prefer plan II . O B. 28% of people who prefer plan I are from the 36-45 age group, and 42% of people from the 46-55 age group prefer plan II. 2396 of people who prefer plan I are from the 36-45 age group, and 33% of people from the 46-55 age group prefer plan II. 28% of people who prefer plan I are from the 36-45 age group, and 33% of people from the 46-55 age group prefer plan II. OD es reserved
Answers
Answer:
23% of people who prefer plan I are from the 36–45 age group, and 42% of people from the 46–55 age group prefer plan II.
Step-by-step explanation:
___________Plan I___ Plan II ___Neither
Ages 26–35__ 19_____ 14_______ 17
Ages 36–45__ 14 _____28_______ 8
Ages 46–55__ 27 _____21_______ 2
Total Number who prefer plan 1 = (19 + 14 + 27) = 60
Number in the 36 - 45 age group = 14
Percentage = 14 / 60 = 0.2333 = 23%
Number of people in the 46-55 age group = (27 + 21 + 2) = 50
Number on the age group who prefer plan II = 21
Percentage = 21 / 50 = 0.42 = 0.42 * 100 = 42%
The pair of triangles below have two corresponding parts marked as congruent. What additional information is needed for a SAS congruence correspondence?
A. EL⎯⎯⎯⎯⎯⎯⎯≅KA⎯⎯⎯⎯⎯⎯⎯⎯
E
L
¯
≅
K
A
¯
B. ∠E≅∠K
∠
E
≅
∠
K
C. ∠L≅∠A
∠
L
≅
∠
A
D. ∠C≅∠J
Answers
Answer:
∠C≅∠J
Step-by-step explanation:
Two triangles will be congruent by SAS information required ∠C≅∠J.
--------------------------hope it helps...have a great day!!The missing information that we need to establish a side angle side congruence is that ∠C≅∠J.
What is congruence?The congruence of a triangle can be established on three basis;
Side angle sideAngle angle sideSide side sideNow we know from the figure that the sides /CL/ = /JK/. It then follows that the missing information that we need to establish a side angle side congruence is that ∠C≅∠J.
Learn more about congruence:https://brainly.com/question/7888063
#SPJ5
pls help with my e learning
Answers
Answer:
12. We have that 32 cm is the shaded region
7×6=42 42-33cm= 9cm Hence the white are is 9cm Then 8×9=72 cm 72cm -9cm= 63 cm^2x^2- 4x- 12 = 0
Solve by factoring and solve by completing the square
Answers
Use the formula (b/2)^2 in order to create a new term. Solve for by using this term to complete the square.
Cannot solve by completing the square.
Find the diameter and circumference
6.2 mi
PLS HELP I NEED AN ANSWER PLS
Answers
Answer:
diameter: 2.4 mi
circumference = 38.96 mi
Step-by-step explanation:
d=2r=2·6.2=12.4
C=2πr=2·π·6.2≈38.95575
the radius of a circle is (x-3)m. find the area of the circle
Answers
Answer:
πx² -6πx + 9π
or
π(x² - 6x + 9)
Step-by-step explanation:
area = πr² = π(x-3)² = π(x² - 6x + 9) = πx² - 6πx + 9π
hii! i’ll give brainliest pls help
Answers
Answer:
the first answer
Step-by-step explanation:
Answer:
I think it's many buildings are crumbled
Find the missing side of the triangle.
PLEASE NO LINKS- I WILL REPORT YOU.
Need help-
Thank you!!!
Answers
Answer:
11.7 cm
Step-by-step explanation:
Pythagoream Theorem:
[tex] {11}^{2} + {4}^{2} = {x}^{2} \\ 121 + 16 = {x}^{2} \\ 137 = {x}^{2} \\ \sqrt{137} = x \\ 11.7 = x[/tex]
Hope this helps!!
Kamira's weekly salary is based on the number of pairs of shoes she sells. She is paid a base salary of $25, plus $5 for every pair of shoes she
sells. Which linear equation models this situation showing the relationship between her pay (p) and pairs of shoes (s) sold?
Answers
Answer: p= 5s + 25
Step-by-step explanation:
Of 800 Participants in a marathon, 120 are running to raise money for a cause. How many participants out of 100 are running for a cause?
Answers
Answer:
15
Step-by-step explanation:
800 = 120
100 = x (number we have to find)
800x = 12000
x = 12000 ÷ 800
x = 15
Find the probability. Write answer as a reduced fraction using the forward slash (/).
You have 10 blue marbles, 8 red marbles, and 6 white marbles in a bag. You pick a red marble and put it back, pick a blue marble and put it back, and then pick a red or white marble.
Answers
Answer: depends on which probability you want (tell me and I’ll edit)
Step-by-step explanation:
10 blue
8 red
6 white
24 total
Pick a red marble: 8/24 or 1/3
Pick a blue marble: 10/24 or 5/12
Pick red or white: 14/24 or 7/12
do you want to know the probability of doing all that (pick red, put back, pick blue, put back, then pick red or white)? Or just the probability of each outcome?
5. The title of most cabinet members is?
general
secretary
Answers
Answer:
Secretary seems like the most reasonable answer
Volume of a rectangular prism with a length of 6 inches, width of 2 inches, and height of 4 inches,
Answers
Answer:
[tex]V=48 inch^3[/tex]
Step-by-step explanation:
From the question we are told that:
Length of prism l=6 inches
Width of prism w=2 inches
Height of prism h=4 inches
Generally the equation for Volume of rectangular prism is mathematically given by
[tex]V=l*w*h[/tex]
[tex]V=6*2*4[/tex]
[tex]V=48 inch^3[/tex]
Therefore of Volume of rectangular prism is
[tex]V=48 inch^3[/tex]
5x-4=16 value of x is what?
Answers
Answer:
x = 4
Step-by-step explanation:
5x-4=16
Add 4 to both sides of the equation.
5x = 20
Divide both sides by 5.
x = 4
Answer:
x=4
Step-by-step explanation:
You first add 4 to both sides and get 5x=20. Then you divide both sides by 5 to isolate the x and get x=4.
Hope this helped :)
can anyone help please? I’ll give brainliest !
Answers
Answer:
I think he has $9800 left to pay off
Step-by-step explanation:
multiply the tuition(10350)by 2. Then subtract 1/3 of that (6900) by the price (20700) thensubtract the $4000 he gets from his job
On his way to a job site, Spencer stops to buy bags of concrete mix. Each bag weighs 60 pounds. Spencer’s truck can carry at most 1,700 pounds, and he already has 320 pounds of tools and other equipment in his truck. What are the possible numbers of bags of concrete mix Spencer can buy?
Answers
Answer:
28 bags but see below
Step-by-step explanation:
Start by subtracting 320 from 1700
1700 - 320 = 1680
Now he can buy any number of bags as long as he doesn't go over 1680 pounds. Let's see what that means
1680 / 60 = 28 bags of cement.
The answer to the math problem is 28 bags.
In real life, you likely want to trim it that close. What if you hit a bump. That would be very hard on the springs. I'd drop it down to 26 bags if I was actually transporting concreate mix.
He could by any number of bags between 1 and 28 in a math class and a few less in actual practice.
State if the triangles in each pair are similar if so state if you know they are similar (please show work if possible)
Answers
You can kick "b" soccer balls into a goal in 2 minutes, and you have been kicking for 16 minutes. You take a break then kick 3 more balls. Do NOT try to solve, but write me an EXPRESSION that represents how many balls you kicked in total
Answers
Answer:
SCHOOL
Step-by-step explanation:
Find the lines of symmetry for each shape. Select all that apply.
Answers
Answer:
It is T and R
Step-by-step explanation: