Answer:
C
Step-by-step explanation:
why is this true 9a=11a-2a
Answer:
9a = 11a - 2a
9a = 9a
Step-by-step explanation:
9a = 11a - 2a
11 - 2 = 9
Similarly, 11a - 2a = 9a
Eleven minus two equals nine. Similarly, 11a minus 2a equals 9a. You can subtract them because they both have the same variable a.
there are 30 students in a class. of those, 15 take history, 18 take geography, and 5 take neither of
these subjects. how many students
take both subjects?
.
Answer:
n(U)=30
n(H)=15
n(G)=18
n(H ∪ G)'=5
n(H ∪ G)=n(U)-n(H ∪ G)'
=30-5=25
So ,n(H ∩ G)=n(H)+n(G)-n(H ∪ G)
=15+18-25=8
Therefore, 8 students take both subjects.
A set is a mathematical model for a collection of diverse things. The total number of students who who take both History and Geography is 8.
What is a set?A set is a mathematical model for a collection of diverse things; it comprises elements or members, which can be any mathematical object: numbers, symbols, points in space, lines, other geometrical structures, variables, or even other sets.
Given that there are 30 students in a class. of those, 15 take history, 18 take geography, and 5 take neither of these subjects. Therefore, we can write the following values,
Total students, n(S)=30Students who take History, n(H)=15Students who take Geography, n(G)=18Students who take neither of the subject, n(H' ∪ G') =5Now, the number of students who take at least one of the two subject can be written as,
Students who choose at least one subject
= Total students - Students who take neither of the subject
n(H ∪ G) = n(U) - n(H ∪ G)'
n(H ∪ G) = 30 - 5
=25
Further, the total number of students who who take both the subjects can be written as,
Students who take both the subjects = Students who take History + Students who take Geography - Students who choose at least one subject
n(H ∩ G) = n(H) + n(G) - n(H ∪ G)
n(H ∩ G) = 15 + 18 - 25
n(H ∩ G) = 8
Hence, the total number of students who who take both History and Geography is 8.
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highest common multiple of 36 and 100
Answer: 2
Step-by-step explanation:
The area of a rectangle is 24x5y7 square yards. If the length of the rectangle is 3x2y6, which expression represents the width of the rectangle in yards?
Answer: [tex]8x^3y[/tex]
Step-by-step explanation:
Given
The area of a rectangle is [tex]24x^5y^7[/tex]
The length of the rectangle is [tex]3x^2y^6[/tex]
The area is given by the product of length and width
Suppose, w is the width of the area
[tex]\therefore A=l\times w\\\Rightarrow 24x^5y^7=3x^2y^6\times w\\\\\Rightarrow w=\dfrac{24x^5y^7}{3x^2y^6}\\\\\Rightarrow w=8x^3y[/tex]
Thus, the width of the rectangle is [tex]8x^3y[/tex]
4 NH3 + 5 O2 → 4 NO2 + 6 H2O
The balanced equation above shows that 4.00 moles of NH3 requires ___ mole(s) of O2
0.57
0.80
1.25
5
Answer:
0.57 PROOOOOOOOOOOOOOOOOOO
Step-by-step explanation:
Answer:
since this question is answered
Step-by-step explanation:
don't mine if I take the points
this is exact and approximate pi. SOMEONE HELP PLSSS
no one wants to help me..someone please help!!
will give brainlyist if quick Which of the equations is graphed below?
Answer:
c
Step-by-step explanation:
the charge for a microwave repair visit was $81.21, including tax. if the tax was $6.70, then how much was repair visit?
Answer:
i belive the answer would be 74.51$?
Step-by-step explanation:
hey! i’ll give brainliest please help.
Answer:
shah
:) hope this helps!
WHAT IS THE SIN (-300)
Answer:
√3/2 or 0.886025
Step-by-step explanation:
Dave rolled a number cube 10 times and recorded the frequency of each result in this table. According to the table, what is the experimental probability in simplest form that the number cube shows 6? A.1/10 B.1/6 C. 3/10 D. 1/2
Answer:
C is infact correct
Step-by-step explanation:
Give guy above brainly
The experimental probability in simplest form that the number cube shows 6 will be 3/10.
What is probability ?Probability is a branch of mathematics that deals with the occurrence of a random event.
According to the question
Dave rolled a number cube 10 times and recorded the frequency of each result in this table.
From the table it can be seen that the frequency of rolling a 6 is 3 and the probability of the event occuring is 1/6
so ,
The experimental probability in simplest form that the number cube shows 6 will be
= Frequency / No. of times the dice is rolled
= 3/10
The experimental probability in simplest form that the number cube shows 6 will be 3/10.
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Part A Anna took a taxi home from the airport. The taxi fare was \$ 2.1$2.1 per mile, she gave the driver a tip of \$ 5$5, and Anna paid a total of \$ 49.10$49.10. Write an equation to determine the distance in miles \left(x\right)(x) between the airport and Anna's home. Answer: Part B Find the distance between the airport and Anna's home. Answer: miles.
Answer:
44.10 = 2.1x
x = 21 miles
Step-by-step explanation:
Cost per mile = $2.1
Driver tip = $5
Total amount paid = $49.10
Let
x = number of miles
Write an equation to determine the distance in miles \left(x\right)(x) between the airport and Anna's home.
Total cost of miles = Total amount paid - Driver tip
= $49.10 - $5
= $44.10
Equation to determine distance in miles
Total cost of miles = cost per mile * number of miles
44.10 = 2.1x
Find the distance between the airport and Anna's home
44.10 = 2.1x
Divide both sides by 2.1
44.10 / 2.1 = 2.1x / 2.1
21 = x
x = 21 miles
3. The quadratic function f(x) = - x ^ 2 + 8x - 2 has a turning point whose -coordinate is 4. Which of the following represents the range of this function?
Answer:
Step-by-step explanation:
Answer:
its A
Step-by-step explanation:
hey! i’ll give brainliest please help!
Answer:
becoming a monarch I guess that is the correct answer
Answer:
becoming a monarch is the answer
Please help :) I will mark brainless
Consider the sequence 3/4, 4/5, 5/6, 6/7, . . .
Which statement describes the sequence?
A. The sequence diverges.
B. The sequence converges to 0.
C. The sequence converges to ∞.
D. The sequence converges to –∞.
Answer:
b is a correct answer
Step-by-step explanation:
that is correct and right answer.
The sequence 3/4, 4/5, 5/6, 6/7, . . . is diverges option (A) The sequence diverges is correct.
What is the convergent of a series?
A series is convergent if the series of its partial sums approaches a limit; that really is, when the values are added one after the other in the order defined by the numbers, the partial sums get closer and closer to a certain number.
The sequence can be defined as the systematic way of representing the data that follows a certain rule of arithmetic.
It is given that:
The sequence:
3/4, 4/5, 5/6, 6/7, . . .
AS we know, the convergent sequence occurs when, as n approaches infinity, you arrive at a final and constant term through a number of terms.
Divergent sequences are those in which the terms never stabilize; instead, they constantly increase or decrease as n approaches infinity, approaching either infinity or -infinity.
The nth term of the sequence
a(n) = 2+n/3+n
Applying divergence test:
The sequence diverges
Thus, the sequence 3/4, 4/5, 5/6, 6/7, . . . is diverges option (A) The sequence diverges is correct.
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How many solutions does this system of equations have? y=6x+x+3 y=7x+3+1
:]
Answer: no solutions
Step-by-step explanation:
y = −7x + 3
y + 7x = 10
Answer:
No solution the lines are parallel
Step-by-step explanation:
y = 6x +x + 3
y = 7x + 3
y = 7x + 3 + 1
y = 7x + 4
No solution the lines are parallel
what the highest common factor for 12 and 20
Answer:4
Step-by-step explanation:
- 1/3 x + 12 = -2x + 2 ?
Answer:
x = -6
Step-by-step explanation:
- 1/3 x + 12 = -2x + 2
(- 1/3 x + 1/3) + 12 = (-2x + 1/3) + 2
12 = - 1 2/3x + 2
12 -2 = - 1 2/3x (+ 2 - 2)
10 = - 1 2/3x
x = -6
Answer:
- 30/7
step by step explanation:
i dont really know how to explain it sorry
Use a calculator to find the value of these data. Round the value to three
decimal places.
A-0.953
B. -1.909
C. 0.909
D. 0.953
The value of coefficient of correlation coefficient is -0.953 which is a negative correlation between x and y option (A) is correct.
What is correlation?It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.
We have given data in the table.
As we know, the formula for the correlation is given by:
[tex]\rm r = \dfrac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{{[n\sum x^2- (\sum x)^2]}}\sqrt{[n\sum y^2- (\sum y)^2]}}[/tex]
After plugging the value, we will get the value of r:
r = -0.953
Thus, the value of coefficient of correlation coefficient is -0.953 which is a negative correlation between x and y option (A) is correct.
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when you see the word expect you will
Answer:
Um, yes? No clue what you're asking.
Answer:
could you try to rephrase that question? I don't think I understand it.
help asap ill give brainliest
Answer :
This figure consists of two shapes that are a rectangle and a square . We will first find the area of rectangle then the square then add them . Let's work on this together ,
Breadth of rectangle = 4 cmLength of rectangle = 4 + 5 + 3 Length = 12 cmArea of rectangle = 12 × 448 cm²Area of square ,
Side × Side5 × 525 cm²Total area of the figure ,
48 + 25 73 cm²A line is parallel to y = 2x + 1 and
intersects the point (3, 2). What is
the equation of this parallel line?
Start by entering this into point-slope form.
y 52 = [?](x-[])
Answer:
y= 2x-4
Step-by-step explanation:
y-2= 2(x-3)
y-2=2x-6
y= 2x-6+2
y= 2x-4
ASAP LAST DAY TO TURN IN*
Determine the surface area of the three-dimensional composite figure after rotation about the x-axis. Show all work to receive credit. Bubble answer on griddable. Round to the nearest hundredth if necessary.
Answer:
72.85 sq units
Step-by-step explanation:
SA = (½×4×3.14×2²)+(2×3.14×2×2) +(3.14×2×3.6)
= 25.12+25.12+22.61
= 72.85 sq units
Which expression is equivalent to 16x4 – 64? and explain the answer plzz
Answer:
4(4x1-16)
Hope this helps
Have a good day :)
PS I disibuted 4 to 4x1 to get 16 and 4 to -16 to get -64
Step-by-step explanation:
what size is this angle it goes up to 360 I need this asap
Answer:
its 145 degrees
Step-by-step explanation:
somebody pls help me and pls show work!
(no links)
Answer:
I think the answer is letter A.
Answer:
its A
Step-by-step explanation:
just expand it out
I'm guessing you don't know how to multiply fractions, just do a/b *c/d = ac/bd
and a(b+c) = ab+ ac
Question 5 of 10
Which expression is equivalent to 22 - 3?
A. 22 + 3
B. -22 + 3
C. -22+(-3)
O D. 22+(-3)
SUB
Answer:
D is equivalent to the equation bc you can do additive inverse.
Step-by-step explanation:
22 - 3
You change the symbol to its inverse and the second number to its opposite
22 + (-3)
Please help me using product rule
Using the product rule, then (A) is the answer.