Answers
Related Questions
there are 10 boy and 10 girl in a group, 2 boys are to selected and 2 girl are to selected for the play, how many ways can they selected.
Answers
Answer:
400 ways
Step-by-step explanation:
Times 10 x 10 x 2 x 2 to get your answer
In a right isosceles triangle, the lengths of both legs are equal. For the given isosceles triangle, what is the value of x?
Answers
well, we know the triangle besides being an isosceles, is also a right-triangle, so let's use the pythagorean theorem.
[tex]\textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2 \qquad \begin{cases} c=\stackrel{hypotenuse}{\sqrt{72}}\\ a=\stackrel{adjacent}{x}\\ b=\stackrel{opposite}{x}\\ \end{cases}\implies (\sqrt{72})^2=x^2+x^2 \\\\\\ 72=2x^2\implies \cfrac{72}{2}=x^2\implies 36=x^2\implies \sqrt{36}=x\implies 6=x[/tex]
Answer:
x = 6
Step-by-step explanation:
sine law
a/ sin a = x / sin x
(72)^1/2 / sin 45º = x / sin 90
6 = x/1
multiply each side by 1
6 = x
what is 9.6 divided by 0.12 (with equation pls)
Answers
Answer:
9.6 ÷ 0.12
Expand 9.6/0.12 by multiplying both numerator and the denominator by 100.
=960/12
Devide 960 by 12 to get 80
=80
So the answer is 80
Step-by-step explanation:
#Carry on learning
Solve the system of linear equations by substitution.
y = 2x + 8
y = -2x
Answers
Answer:
(- 2, 4 )
Step-by-step explanation:
y = 2x + 8 → (1)
y = - 2x → (2)
substitute y = 2x + 8 into (2)
2x + 8 = - 2x ( add 2x to both sides )
4x + 8 = 0 ( subtract 8 from both sides )
4x = - 8 ( divide both sides by 4 )
x = - 2
substitute x = - 2 into (2)
y = - 2(- 2) = 4
solution is (- 2, 4 )
Answer: [tex]y=4,\:x=-2[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}y=2x+8\\ y=-2x\end{bmatrix}[/tex]
[tex]\mathrm{Substitute\:}y=-2x[/tex]
[tex]\begin{bmatrix}-2x=2x+8\end{bmatrix}[/tex]
[tex]{Isolate\:}x{for -2x=2x+8[/tex]
[tex]x=-2[/tex]
[tex]\mathrm{For\:}y=-2x[/tex]
[tex]\mathrm{Substitute\:}x=-2[/tex]
[tex]y=-2\left(-2\right)[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]y=4[/tex]
[tex]The\:solutions\:to\:the\:system\:of\:equations\:are:[/tex]
[tex]y=4,\:x=-2[/tex]
Good Luck!
HELP pleaseeeee NOWWWW
Answers
Seven people are going to share an 84-ounce bottle of soda. How many ounces will each person get to drink?
Answers
Answer:
Each person is gonna drink 12 ounces
Step-by-step explanation:
84 divided by 7 is 12
As it is 7 people sharing one drink that is 84 ounces I divided since they would be sharing equally and as it was the right thing to do.
Not a teacher
how do you solve f-3/4=5/6?
Answers
Answer:
f =38
Step-by-step explanation:
f-3/4=5/6
f-3×6=5×4
f-18 =20
f =20+18
f =38
Carlos uses a food delivery service to order lunch. He paid $13.75 for lunch, which included the cost of the food and a delivery fee, which is 10% of cost of the food. What was the cost of Carlos' lunch before the delivery fee? Enter your answer in the box.
Answers
Answer:
$12.50
Step-by-step explanation:
Let x = the cost of the food without the delivery fee.
The delivery fee can be represented as 0.10x.
Keep in mind that the cost of the food plus the delivery fee equals $13.75.
Therefore, your equation will look like: 13.75 = x + 0.10x
x + 0.1x = 1.10x
So, 13.75 = 1.10x
This means that x = 13.75/1.10
x = 12.5 = $12.50
Answer: Let's represent the cost of the food as "x".
We know that the delivery fee is 10% of the cost of the food, so it can be written as 0.1x.
The total cost that Carlos paid for lunch is the sum of the cost of the food and the delivery fee, which is:
Total cost = Cost of food + Delivery fee
$13.75 = x + 0.1x
Simplifying the equation, we get:
$13.75 = 1.1x
Dividing both sides by 1.1, we get:
x = $12.50
Therefore, the cost of Carlos' lunch before the delivery fee was $12.50.
YES 12.50 is correct I am a k12 student and I have proof. the quiz name is 2.09 Quiz: Multistep Percent Problems
can you simplify 4+6(3)+2(5 1/2 -1)
Answers
Answer:
31
5 1/2 - 1 = 4.5
4+ 18= 22
2(4.5) = 9
22+ 9 = 31
Step-by-step explanation:
what is the area of the parallelogram
Answers
Answer:
the area parallelogram is 90%
b) For V = Pi r squared , find V when r = 12.5 and h = 8
Answers
World War I, often abbreviated as WWI or WW1, also known as the First World War or the Great War, was an international conflict that began on 28 July 1914 and ended on 11 November 1918
a method to solving a system of equations using the coordinate and
Answers
Answer:
Systems by Graphing
Step-by-step explanation:
1.] (3x³) (x⁴)
2.] (3) (4³)
3.] (x²y)³
4.] (6x⁷) / (2x⁴)
5.] 9x
HELP PLSS NEED ASAP
Answers
Answer:
1. 3x^7
2. 192
3. x^6y^3
4. 3x^3
5. 3^2x
Step-by-step explanation:
Answer:
1. 3x⁷
2. 192
3. x⁶y³
4. 12x¹¹
5. 3²x
What does this symbol mean in mathematics?
Answers
Answer:
Looks like (pi)= 22/7
Step-by-step explanation:
Answer:
I believe it is pi, as in 3.14 pi. (The handwriting is so confusing)
Step-by-step explanation:
Pi typically looks like a cursive "r" or a bench of some sort, so I believe this is the pi symbol. Hope that helps :)
PLS HELP MARKING BRAINLEIST JUST BE QUICK
Answers
Answer:
19w + 3
Explanation:
perimeter: length measure of all sides
perimeter for this shape:
→ 4w + 4 + 6w + 5 + 7w + 3 + 2w - 9
group terms like this ↓
→ 4w + 6w + 7w + 2w + 4 + 5 + 3 -9
add basic numbers ↓
→ 4w +6w +7w +2w +3
final answer ↓
→ 19w + 3
Perimeter is the sum of all the sides.
2w-9 + 4w + 4 + 6w + 5 + 7w + 3
Combine like terms:
19w + 3
Use the graph to find the
a y-intercept
b. the slope of the line
С.
write the equation of this line
Answers
Since the line is pointing down, it has a negative slope, and since the y value goes down 2 for every 3 x values, the slope is -2/3. You should always right the slope in rise/run form, or change in y/change in x.
Finally, write the equation in the form of y=mx+b, where m is the slope and b is the y intercept. This means the equation of the line is y=-2/3x+2.
Evaluate a + b for a = 2 and b = 3.
Answers
Hey there!
a + b
= 2 + 3
= 5
Therefore, your answer is: 5
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Graph: f(x)= (x+1)(x – 5)
Answers
Answer:
f(x)=(x+1)(x-5)
=x+1=x-5
=1+5=x-x
=6
which of these functions has the highest midline?
a) 1-sin(t+3pi/2),
b) 2-sin(t/2 + pi/4),
c) sin(2t- pi/2),
d) 2sin(t-pi)
Answers
Select all that are equal to 64(6-5)
Answers
Answer:
the middle 3
Step-by-step explanation:
6^(4-5)
6^(-1)
so three are equal to this
1/6
6^-1
and
1/6^1
FIRST PERSON TO ANSWER GETS BRAINLIST AND 10 POINTS!!!!!!
Robert's dresser drawer contains 4 red socks, 10 black socks, 6 white socks, and 4 gray socks. If Robert randomly selects one sock from the drawer, which of the following statements are true? Select all that apply. The probability of selecting a gray sock is the same as the probability of selecting a red sock Each color sock is equally likely to be chosen from the drawer. This scenario can be represented by a non-uniform probability model. This scenario can be represented by a uniform probability model.
Answers
Answer:
The answer to your problem is black (1/5)
Step-by-step explanation:
Sam buys a bus ticket for $1.60 and a breakfast burrito for $3.75 each day, Monday through Thursday. He leaves a $1.40 tip each day.
Answers
Answer: $22.20
Step-by-step explanation: yw
There are seven boys and seven girls in a class. The teacher randomly selects one student to answer a question. Later, the teacher randomly selects a different student to answer another question. The first student is a boy and the second student is a girl.
Find the probability
Answers
0.5 for a girl
PLEASE HELP ME I REALLY NEED IT
Answers
Divide 32,400 by twelve
32,400/12=2,700
2,700x4 equals the amount depreciated in 4 years which equals 10,800
Subtract 10,800 from the original value 32,400-10,800= 21,600
A is your answer
you are on a 750 mile trip by car . ur car used seven gallons of gas to travel the first 210 miles of the trip. how much more gas will u need to make it the rest of the way at the same rate ? show work
Answers
Answer:
A total of 18 gallons of more gas
Step-by-step explanation:
7 gallons = 210 miles
750-210= 540
210*2 =420 miles 7*2=14 gallons
210/2= 105 7/2=3.5 gallons
525 miles 17.5 miles
210/14= 15 7/14=.5 gallons
540 miles 18 gallons
Write a formula for the perimeter (p) of a square whose sides are s units long
Answers
Answer:
Perimeter = 4s
Step-by-step explanation:
The perimeter of a square = 4*length
Given that length = s
Perimeter = 4s
-Chetan K
There re 380 light bulbs lined up in a row in a long room. Each bulb has its own switch and is currently switched off. Each bulb is numbered and is consecutively from 1 to 380. You first flip every switch. You then flip the switch on every second bulb. You then flip the switch on every third bulb. This continues after you have gone the process 380 times
(I rlly need help)
Answers
Flipping the bulbs is an illustration of sequence and patterns
19 bulbs would remain on.
How to determine the number of bulbs that will be onThe sequence of turning the bulbs off and on, would change the state of the bulbs until the 380th process.
While changing the state of the bulbs, the bulb at the perfect square positions would remain on.
There are 19 perfect square numbers between 1 and 380 (inclusive)
Hence, 19 bulbs would remain on.
Read more about sequence and patterns at:
https://brainly.com/question/26698448
Line segments A prime B prime and A B. The distance from the center of dilation P to A prime is 3. The distance from P to A is 5.
1/2
3/5
1 2/3
2
HURRY I HAVE !0 MINS LEFT
Answers
Good luck!
Cory writes the polynomial x7 3x5 3x 1. Melissa writes the polynomial x7 5x 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?.
Answers
Degree of a polynomial gives the highest power of its terms. Yes there is a difference between the degrees of sum and difference of the polynomials.
What is degree of a polynomial?Degree of a polynomial is the highest power that its terms pertain(for multi-variables, the power of term is addition of power of variables in that term).
Thus, in [tex]x^3 + 3x^2 + 5[/tex], the degree of the polynomial is 3 as the highest power in its terms is 3.
(power and exponent are same thing)
What are like terms?Those terms which have same variables raised with same powers.
For example, [tex]x^3[/tex] and [tex]3x^3[/tex] are like terms since variable is same, and it is raised to same power 3.
For example [tex]4x^2[/tex] and [tex]x^3[/tex] are not like terms as the variables are same but powers aren't same.
The given polynomials are:
[tex]c(x) = x^7 + 3x^5 + 3x + 1\\\\p(x) = x^7 + 5x + 10[/tex]
Their sum is
[tex]c(x) + p(x) = x^7 + 3x^5 + 3x + 1 + x^7 + 5x + 10 = (1+1)x^7 + 3x^5 + (3+5)x + 11\\\\c(x) + p(x) = 2x^7 + 3x^5 + 8x + 11[/tex]
(only like terms' coefficients can be added (or subtracted) for addition or subtraction of them )
The sum's degree is 7
Their difference is:
[tex]c(x) - p(x) = x^7 + 3x^5 + 3x + 1 - x^7 -5x - 10 = (1-1)x^7 + 3x^5 +(3-5)x -9\\\\c(x) - p(x) = 3x^5 - 2x - 9[/tex]
Difference's degree is 5
Thus, both's degrees are not same.
Thus, Yes there is a difference between the degrees of sum and difference of the polynomials.
Learn more about subtraction of polynomials here:
https://brainly.com/question/9351663
Determine if the statement is true or false.
66 = 7 (mod 12)
Answers
Answer:
false
Step-by-step explanation:
66 mod 12
quotient 5
reminder 6
true statement
66 = 6 (mod 12)