Answer:
Assuming that each coin is fair and is equally likely to land heads or tails, the probability is 3/4.
if AB=BA= I then write the relation between matrix A and matrix B
Answer:
If AB = BA = I, then B is inverse of A and vice-versa.
Step-by-step explanation:
Given: AB = BA = I
To find: The relation between matrix A and B.
If AB = BA = I, then B is called the inverse matrix of A and is denoted by [tex]A^{-1}[/tex].
In that case, A is said to be invertible.
Also, if B is the inverse of A, then A is also the inverse of B.
Hence, the relation between A and B is that both are inverse of each other.
Lydia wants to find the height of a flagpole. She measures the height of a tree and the length of the shadow it casts. The tree is 14 feet tall, and its shadow is 21 feet long. Next, Lydia measures the shadow cast by the flagpole, and finds it is 30 feet long. What is the height of the flagpole?
draw a diagram.
the two are similar bc of AAsimilarity
so 8.8 is to 4 as 22 is to x
basically the answer is 10 ft tall
12- (-5) + (-4 ) calculate
-12m = 16 . plz its really important i need some help
Answer:
-1 and 1/3
Step-by-step explanation:
-12 x -1 1/3= 16
Answer:
-3/4
Step-by-step explanation:
-12m=16
m=12/-16
simplify
m=-3/4
Where do the lines y = 3x + 5 and y = -2x + 10 intersect?
9514 1404 393
Answer:
(x, y) = (1, 8)
Step-by-step explanation:
A graphing calculator quickly tells you the point of intersection.
__
You can equate the y-values and solve for x.
3x +5 = -2x +10
5x = 5 . . . . . . . . . add 2x-5
x = 1 . . . . . . . divide by 5
3·1 +5 = y = 8 . . . . substitute for x in the first equation
The point of intersection is (x, y) = (1, 8).
an account executive earns 600 per month plus 3% commission on sales. the executive's goal is to earn $2400 this month. how much must she sell to achieve this goal?
Answer:
$60,000
Step-by-step explanation:
Given :
Monthly earning = $600
Commission = 3%
Month's goal = $2400
Let total sales for the month = x
Hence,
Monthly earning + (commission * total sales) = monthly goal
600 + (0.03 * x) = 2400
600 + 0.03x = 2400
0.03x = 2400 - 600
0.03x = 1800
x = 1800 / 0.03
x = $60,000
A +3178 equals 6000 evaluate
Answer:
A=2822
Step-by-step explanation:
A+3178=6000
A=6000-3178
A=2822
is a square + b square is equal to 49 is a line equation is one variable
Answer:
Yes
Step-by-step explanation:
Seven multiply seven =49
Answer:
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The student population of a school consists of 300 girls and 500 boys
Answer:
In all you have 800 students.
The ratio of girls to boys is 300:500
500 x 300 = 150000
Step-by-step explanation:
Hope this helps?
Solve using elimination.
5x + 7y = -6
4x + 7y = -9
Which system of equations is represented by the graph?
10
8
(4.0)
-10-8
-6 -4 -2
8
1D
(-1,-571
y = x +4
X+4
y =
X+2
y = x - 4
X+4
y =
X+2
y = x + 4
X-4
y =
X+2
y = x - 4
X-4
y =
X+2
Answer:
-6
Step-by-step explanation:
is it
Can you please help me
SOLVE FOR X, WILL GIVE BRAINLIEST
The two angles are supplementary angles and when added together equal 180 degrees.
3x -12 + x+2 = 180
Simplify:
4x -10 = 180
Add 10 to both sides
4x = 190
Divide both sides by 4
X = 190/4
X = 47.5
Please help fast!!!!
Answer:
BGHjf, it skf skoad 78, then mutli 0867, then you'll get your answer!! 657.
Step-by-step explanation:
Sarah has 23 apples she divides them into 15 places what is the fraction of the apples she has left?
The population of City A was approximately 243,000
people, and it increased by 8% in one year. What was the
new population?
Answer:
262440
Step-by-step explanation:
What is an angle that is adjacent to <2?
(PLEASE)
Answer:
∠3 and ∠1 are correct
Step-by-step explanation:
adjacent angles are next to each other with a common vertexand side
Alia has a AED 20 gift card for an online music store. All songs at the store have the same price. After Alia buys 3 songs, the balance on the card is AED 16.25. What will be the remaining balance on the card after he buys 5 more songs
Answer:
Remaining balance = AED 13.75
Step-by-step explanation:
Given that:
Amount of gift card = AED 20
Amount left after buying 3 songs = AED 16.25
Cost of 3 songs = 20 - 16.25 = AED 3.75
Cost per song = [tex]\frac{3.75}{3}[/tex]
Cost per song = AED 1.25
Cost of 5 songs = 5(1.25) = AED 6.25
Remaining balance = 20 - 6.25 = AED 13.75
Hence,
Remaining balance = AED 13.75
The equation of line j is y=5/7x-9. Line k, which is parallel to line j, includes the point (-7, 1 ). What is the equation of line k ?
Answer:
math waaayys can help you
Step-by-step explanation:
If 1 foot of chain costs 17¢, then 4 yards of this chain would cost
A. $0.68
B. $1.53
C. $2.04
D. $2.75
Answer:
a
Step-by-step explanation:
17x4+68
Answer: C. $2.04
Step-by-step explanation: 4 yards = 12 feet. 17 x 12 = 204 cents which equals to $2.04
Help plis plis
18. Find the sum of (x + 3) and
(- x - 4).
Help plis
Answer:
-1...................
Step-by-step explanation:
x+3-x-4
o-1
-1
Answer :
-1
Explanation:
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Answer:
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You are driving up a mountain. At the base of the mountain you see a sign that states the elevation above sea level is 3,720 feet at this point. You then travel a horizontal distance of 5 miles to the top of the mountain, and see another sign that states the elevation is 4,215 feet above sea level. What was the average slope of the mountain you just climbed in feet/mile?
A) 843 ft/mi
B) 744 ft/mi
C) 99 ft/mi
D) 0.0188 ft/mi
Step-by-step explanation:
Slope of the mountain
= Rise in height / Run in distance
= (4215ft - 3720ft) / 5 mi
= 495ft / 5mi
= 99ft/mi. (C)
3 .912+s=5.313 evaluate
Answer:
s= 1.401
Step-by-step explanation:
subtract 5.313 from 3.912 :D
The evaluation of the equation 3 .912+s=5.313 yields; s = 1.401
Evaluation of one variable equationAccording to the questions;
We are required to evaluate the equation; 3 .912+s=5.313Hence, we must subtract 3.912 from both sides of the equation as follows;
3 .912+s -3.912 = 5.313 - 3.912.s = 1.401
Read more on one variable equation;
https://brainly.com/question/21528555
Help me please! 20 POINTS Im using all of mine please help!
Gerry visited a farm and saw a total of 87 chickens and pigs. If there were a total of 248 legs between all of these animals, how many animals were chickens and how many were pigs?
(System of Equations word problem)
There are 18 or 20 pigs if two had 1 missing leg
Step by Step explanationMultiply the chickens by 2 or adding it by the same number since chickens have 2 legs
87
+87
-------
174
After, minus 174 from 248
That is 74
Divide by 4
Find the measure of angle YTG
Find the value of 49/50 ÷ 7/6 using keep change filp write in simplest form
Answer:
Exact Form:
21/25
Decimal Form:
0.84
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
Find the value of X
ASAP
Please help me! Im really confused!
Answer:
4) 8:1
Step-by-step explanation:
well on the first perfect point there are 8 cups of raspberry juice and 1 cup of lemon-lime soda and it is comparing them in that order so since 1 is the unit it would be 8:1
Answer:
c is correct answer is yes then please
Find the value of x Please be serious
Answer:
Step-by-step explanation:
∠SRT = 180-(11x+3) = 177-11x
∠TSR + ∠SRT = 180-85 = 95
(5x-10) + (177-11x) = 95
-6x+167 = 95
72 = 6x
x = 12