Answers
Step-by-step explanation:
21x+72+105+78=360
21x=105
x=5
Related Questions
if AB=BA= I then write the relation between matrix A and matrix B
Answers
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.
what is the slope of the line represented by the equation?
Answers
Answer:
Slope is - 1/2
Step-by-step explanation:
hope it helps ^^
Answer: The slope is -1/2
Step-by-step explanation: When presented with an equation like that, the number with the "x" is considered the slope.
7g2 + 3g − 2, 8g2 − 2g − 3
Answers
8g2-2g-3 is 14g-3
29) Which equation describes this graph?
graph that contains the points (-2,0) and (8,-10)
A. y=−2x−2
B. y=2+x
C. y=−x
D. y=−2−x
Answers
Let p=x^2-2 which equation is equivalent to (x^2-2)^2+18=9x^2-18 in terms of p
Answers
Answer:
The equivalent equation is [tex]p^2 + 18 = 9p[/tex]
Step-by-step explanation:
p is given by the following relation:
[tex]p = x^2 - 2[/tex]
And we are given the following equation:
[tex](x^2 - 2)^2 + 18 = 9x^2 - 18[/tex]
On the right side, we can simplify. So
[tex](x^2 - 2)^2 + 18 = 9(x^2 - 2)[/tex]
Replacing [tex]x^2 - 2[/tex] by p, the equation is:
[tex]p^2 + 18 = 9p[/tex]
Mariam is going to see a movie and is taking her 3 kids. Each movie ticket costs $12 and there are an assortment of snacks available to purchase for $3 each. How much total money would Mariam have to pay for her family if she were to buy 6 snacks for everybody to share? How much would Mariam have to pay if she bought xx snacks for everybody to share?
Answers
Answer:
3 times 6 = 18 + (3 times 12)
then for x its 3x + 18
Can someone help me do this.
-unnecessary comments will be reported
Answers
One side of a triangle is 3 times the second side. The third side is 17 feet longer than the second side. The perimeter of a
triangle is 52 feet. Find the length of each side.
Answers
Answer:
Side 1=21 ft, Side 2=7, Side 3=24
Step-by-step explanation:
52 = (3x) + (x) + (x+17) -> 52 = 5x + 17 -> 5x = 35 -> x = 7
Plus 7 into the equation whenever you see an x.
How to write 513,292 in expanded notation
Answers
Answer:
oh thats easy look so what you do is 500,000
13,000
1,000
200
90
Step-by-step explanation: 2
your welcome ^^
At the same time of day, a tree and a flagpole cast shadows as shown below.
How tall is the tree?
Answers
Answer:
16 feet
Step-by-step explanation:
Height of tree = [tex]\frac{20}{15}[/tex] × 12ft
= 16ft
A baseball pitcher won 60% of his games. How many did he win if he pitched 35 games?
Answers
Answer:
21 games
Step-by-step explanation:
Multiply the number of games by the percentage.
35 · 0.60 = 21
The cost to park a car in a parking lot is $3.45 per hour. Maleek parked his car for 4 hours on Monday and 3 hours on Tuesday. How much did he spend on parking on Monday and Tuesday? Type your answer AND do your best to EXPLAIN why you did the math you did. *
Answers
Answer:
$3.45
× 9
________
$31.05 in all on parking
Mark me brainlist
What does k equal?
As in y=kx
Pls help
Answers
Answer:
Direct Variation Use y=kx. Means “y varies directly with x.” k is called the constant of variation. “y varies inversely with x.” k is the constant of variation.
Which expression is equivalent to 20+64
a.4+(16+60)
b.4+(5+16)
c.4+(16+60)
d.4(5+16)
Answers
Answer:
D. 4 (5 + 16)
Step-by-step explanation:
20 + 64 = 84
To solve this problem we have to simplify each of the expressions in the answer column:
A. = 80
(16 + 60 = 76) giving us
4 + 76 = 80
B. = 25
(5 + 16 = 21)
4 + 21 = 25
C. = 80
(16 + 60 = 76)
4 + 76 = 80
D. = 84
(5 + 16 = 21)
4 x 21 = 84
So The correct option is D. 4 (5 + 16)
Write the equation of the line that passes through the point (5, -6.5) and is perpendicular to the following equation:
y = 2 x + 5
Answers
first find the slope m of the line passing through the
the 2 given points
to calculate the slope m use the
gradient formula
∙
x
m
=
y
2
−
y
1
x
2
−
x
1
let
(
x
1
,
y
1
)
=
(
1
,
3
)
and
(
x
2
,
y
2
)
=
(
−
5
,
6
)
m
=
6
−
3
−
5
−
1
=
3
−
6
=
−
1
2
given a line with slope m then the slope of a line
perpendicular to it is
∙
x
m
perpendicular
=
−
1
m
hence
m
perpendicular
=
−
1
−
1
2
=
2
the equation of a line in
slope-intercept form
is.
∙
x
y
=
m
x
+
b
where m is the slope and b the y-intercept
here
m
=
2
y
=
2
x
+
b
←
is the partial equation
to find b substitute
(
−
2
,
7
)
into the partial equation
7
=
−
4
+
b
⇒
b
=
7
+
4
=
11
y
=
2
x
+
11
←
is the required equation
No idea how to do this o
Answers
Answer:
f(4) = 6
Step-by-step explanation:
When you have a function f(x) the number inside the parenthesis is the x value. In this case its 4. So the function value for f(4) is 6 because that is where the line is at x = 4
(BRAINLIEST) and more in the description.
Question: We had 1/2 liter of water to share between four siblings. How much water does each of us receive?
Description and benefits: The person with the correct answer will be given 30 points, brainliest, five-star rating, and a thanks. If you answer incorrectly just to get rewards you will be reported to Brainly and your answer will be deleted to give someone else a chance.
Answers
Answer:
1/8
Step-by-step explanation:
If you have 1/2 a liter, you divide it by the four siblings, and 1/2 divided by 4 is 1/8 or 0.125
You could also say that each sibling gets 1/4 of whats left.
When the balloon touched the wall, it stayed there. What is the best explanation for the balloon staying on the wall?
Answers
Answer:
When the negatively charged balloon approaches a wall, the negative charges in the wall are repelled (or pushed away)
Step-by-step explanation:
As the two come in contact, the balloon will stick because of the rule that opposites attract (positive to negative)
Base 72; percentage 12
Answers
Answer:
16.67
Step-by-step explanation:
12 is what percent of 72? = 16.67
Answer:
exactly. 16.67
is the answer its process is simple suppose x
Help me pls I need it now pls
Answers
Answer:
D
Hopes this helps
Answer: The answer is ( A )
Step-by-step explanation:
Because I think that they add by 1.50 w
what is the GCF of 4x - 7
Answers
Answer: The Gcf Of 4x-7 is equivalent to 1
Step-by-step explanation:
Ahmad borrowed $8,000 signing a promissory note for 2.5 years at 15% interest what was the interest paid on the note and on the maturity date how much will ahmad owe for principal
Answers
1. Professor Cramer determines a final grade based on attendance, two papers, three major tests, and a final exam. Each of these activities has a total of 100 possible points. However, the activities carry different weights. Attendance is worth 3%, each paper is worth 6%, each test is worth 19%, and the final is worth 28%.
(a) What is the average for a student with 81 on attendance, 62 on the first paper, 86 on the second paper, 78 on test 1, 68 on test 2, 68 on test 3, and 87 on the final exam? (Round your answer to one decimal place.)
(b) Compute the average for a student with the above scores on the papers, tests, and final exam, but with a score of only 17 on attendance. (Round your answer to one decimal place.
Answers
Answer:
Ur final grade will go down if you are looking for answers buddy! :)
Step-by-step explanation:
a) The average for a student with the given scores is 76.3 (rounded to one decimal place).
b) The average for a student with the given scores, but with a score of only 17 on attendance, is 74.4 (rounded to one decimal place).
Here, we have,
To calculate the average for the given scores, taking into account the different weights of each component, we can use the following steps:
(a) Average with the given scores:
To calculate the average with the given scores, we multiply each score by its respective weight, then sum up the results.
Here's the calculation:
Average = (Attendance * 0.03) + (First Paper * 0.06) + (Second Paper * 0.06) + (Test 1 * 0.19) + (Test 2 * 0.19) + (Test 3 * 0.19) + (Final Exam * 0.28)
Substituting the given scores:
Average = (81 * 0.03) + (62 * 0.06) + (86 * 0.06) + (78 * 0.19) + (68 * 0.19) + (68 * 0.19) + (87 * 0.28)
Average = 2.43 + 3.72 + 5.16 + 14.82 + 12.92 + 12.92 + 24.36
Average = 76.33
Therefore, the average for a student with the given scores is 76.3 (rounded to one decimal place).
(b) Average with a score of 17 on attendance:
Using the same calculation method as above, substituting the attendance score:
Average = (17 * 0.03) + (62 * 0.06) + (86 * 0.06) + (78 * 0.19) + (68 * 0.19) + (68 * 0.19) + (87 * 0.28)
Average = 0.51 + 3.72 + 5.16 + 14.82 + 12.92 + 12.92 + 24.36
Average = 74.41
Therefore, the average for a student with the given scores, but with a score of only 17 on attendance, is 74.4 (rounded to one decimal place).
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scenario a: get $2,000 deposited into your bank account today, and $50 added each month for a year? make a f(×) function pls
Answers
Please help me with my homework!
Alexis says she is thinking about a number whose absolute value is 19. What are the possible numbers she could be thinking of? Mark them on the number line.
Answers
Answer:
-19 and 19
Step-by-step explanation:
The only values that have an absolute value of 19 are -19 and 19.
The sum of two numbers is 250 what is the average of the two numbers
Answers
Answer:
125
Step-by-step explanation:
BRAINLIEST ASAP NEED HELP ez points
What expression represents the value of v?
A: v=√zy
B: v=√wz
C: v=√w(w+z)
D: v=√z(w+z)
Answers
Answer:
I think the answer is a
Step-by-step explanation:
it sounds like the most logic answer. I'm sorry if I'm wrong
PLEASE HELP ASAP!!!!!!!!!! IT WILL REALLY HELP
Answers
Answer:
whats the subject? science?
Step-by-step explanation:
What is the approximate volume of the cylinder?Use 3.14 for Pie
A)904.32cm_3
B)226.08cm_3
C)301.44cm_3
D)150.72cm_3
Answers
Answer:
The volume of cylinder: r squared times pi times height= 1.2 times 1.2 times pi times 20 = 1.44 times pi times 20 which is around 90.48 meters squared. Volume of water: r squared times pi times height = 1.2 times 1.2 times pi times 1 = 1.44 times pi which is around 4.52 meters squared.
The volume of the cylinder is 904.32 cubic cm if the radius is 6 cm and height of the cylinder is 8 cm option (A) is correct.
What is a cylinder?In geometry, it is defined as the three-dimensional shape having two circular shapes at a distance called the height of the cylinder.
We know the volume of the cylinder is given by:
[tex]\rm V = \pi r^2 h[/tex]
Here r = 6 cm
h = 8 cm
π = 3.14
The volume of the cylinder:
[tex]\rm V = 3.14 \times(6)^2 \times 8[/tex]
V = 904.32 cubic cm
Thus, the volume of the cylinder is 904.32 cubic cm if the radius is 6 cm and height of the cylinder is 8 cm option (A) is correct.
Learn more about the cylinder here:
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Please help me ASAP, Im so stuck.
Answers
Answer:
b
Step-by-step explanation: