Answer:
18/95
Step-by-step explanation:
There are a total of 20 names, 9 of which are girl names.
The probability that the first name is a girl name is 9/20.
Since there's one less girl name in the hat, there are now a total of 19 names, 8 of which are girl names. So the probability that the second name is a girl name is 8/19.
The total probability is (9/20) (8/19) = 18/95.
A high street store advertises 35% reduction on all clothing items. A dress costs £85 before the reduction. How much does it cost now?
Answer:
£55.25
Step-by-step explanation:
Cost after reduction
=Cost before sale - Reduction in cost
= 85 - 35% of 85
= 85 - 0.35*85
= 85 - 29.75
= £55.25
Answer:
=£ 55.25hope this helps
brainliest appreciated
good luck! have a nice day!
A student club has 15 members. How many ways can a committee of 6 members be chosen?
A. 504
B. 720
C. 5,005
D. 3,603,600
Answer:
C. 5005Step-by-step explanation:
This is a combination of 6 out of 15
6C15 = 15!/6!9! = 10*11*12*13*14*15/2*3*4*5*6 = 5005Correct choice is C
Answer:
C right?
Step-by-step explanation:
Helen gathered 37 mushrooms in three hours. How many mushrooms did she gather every hour, if she gathered 7 more mushrooms in the second hour than in the first hour, and 6 more in the third hour than in the first hour?
Helen gathered
mushrooms in the first hour,
mushrooms in the second hour and
mushrooms in the third hour.
Answer:
On the first hour she gathered 8 mushroons, on the second 15 mushroons and on the third she gathered 14 mushroons.
Step-by-step explanation:
Helen gathred a total of 37 mushroons in three hours. On the first hour she gathered "x" mushroons, on the second hour she gathered "x + 7" mushroons and on the third hour she gathered "x + 6". Therefore the sum of mushrrons she gathered on each hour should be equal to the total she gathered as shown below:
37 = x + (x+ 7) + (x + 6)
37 = 3*x + 13
3*x + 13 = 37
3*x = 37 - 13
3*x = 24
x = 24 / 3
x = 8
On the first hour she gathered 8 mushroons, on the second 15 mushroons and on the third she gathered 14 mushroons.
Answer:
Helen gathered
8 mushrooms in the first hour,
15 mushrooms in the second hour and
14 mushrooms in the third hour.
Step-by-step explanation:
Write an expression with two terms. One term should have a coefficient with a variable and the other term should be a constant. Name the coefficient, the variable,and the constant in the expression. Then write a word phase for your expression.
Answer:
See Explanation
Step-by-step explanation:
Let us briefly explain the terms
Variable: This is the letter in the expressionCoefficient: This is the number beside the letter aboveConstant: This is a number without any variable attached.Let us take our expression with two terms to be: 3x+5
Coefficient =3
Variable =x
Constant =5
The word phrase of the expression is:
5 added to the product of 3 and a number.
/????????????????????????????????????????whaaaaaaaat
Answer:
ueueueeuhrrhjdhffjjdjffj
2 + 7c – 4c2 – 3c + 4
Answer:-4c^2+4c+6
Step-by-step explanation:
Hope that’s what ur looking for:)
Answer:
2 + 7c – 4c2 – 3c + 4
4c∧2 + 4c + 6
Step-by-step explanation:
This is a clear image of my question the question is
Below is a tree diagram for an event with three possible outcomes. A, B and c. This event occurs twice.
What is the probability of outcome B occurring at least once?
Answer:
1/2
Step-by-step explanation:
Total of B is: 4/2
Total of everything is: 8/4 + 4/2 = 8/4 + 8/4 = 16/4
Decimal number of B is: 2
Decimal number of everything is: 4
Answer: 2/4 or 1/2
Ali made $126 for 9 hours of work. At the same rate, how many hours would he have to work to make $168 ?
Answer:
12 hours
Step-by-step explanation:
First to solve this problem, let's look at what we are dealing with here. It says that Ali made $126 for 9 hours of work.
Let's set that up into a fraction so it's easier to look at.
money/time = 126/9
Now that we have that set up let's look at our other piece of information.
It asks for how many hours would Ali have to work in order to make $168 so let's figure that out.
In order to find out the number of hours, let's first find our unit rate which can be simply found by dividing our given money/time.
126/9 = 14.
This means that for every 1 hour, there will be 14 dollars earned.
Now that we know that, let's look for how many hours it take to earn $168.
In order to do that simply see how many times 14 goes into 168 (division) and that way you can see how many hours it will take to earn $168.
168/14 = 12 hours.
An anthropologist visits an igloo with a circular floor. While there, she measures it and calculates that it has a circumference of 18.84 yards. What is the floor's diameter?
Answer:
The diameter of the floor is 6 yards
Step-by-step explanation:
Here, we are to calculate the diameter of a circular floor that has a circumference of 18.84 yards
Mathematically,
C = π * D
where C is the circumference
Plugging the values of the circumference , we have ;
18.84 = 22/7 * D
7 * 18.84 = 22D
D = (7* 18.84)/22 = 5.99 which is approximately 6 yards
help me with this !!
Multiply the probability of getting a correct answer (0.25) with the number of questions (68) to get 0.25*68 = 17
The student should expect to get about 17 questions correct.
Solve the systems below:
1. x + 7y = 0
2x - 8y = 22
2. x-y=3
7x - y=-3
3.-9 + 5y = -4x
-11x = -20+9y
4. y = 4x - 9
y=x-3
Tell which method you used to solve each system and why you chose
that method
Answer:
Check my explanation
Step-by-step explanation:
1. x=-7y
2(-7y)-8y=22
-14y-8y=22
-22y=22
y=-1;x=7, I used subtitution because that process was easier.
2. x=3+y
7(3+y)-y=-3
21+7y-y=-3
21+6y=-3
6y=-24
y=-4; x=-1, I used subtitution because that process was easier.
3. x=1 and y=1, I used elimination because that process was easier.
4. x-3=4x-9
-3x=-6
x=3; y=0, I used subsitution because that process was easier.
Help please! Will give brainly!!! The prefix anti- means “against” or “opposing.” Biotic means “way of life.” Use this information and information from the passage to define "antibiotic".
Answer:
Against the way of life.
Step-by-step explanation:
The prefix anti means against so you would just combine it with biotic which means way of life in order to get against the way of life.
the product of the first ten prime numbers must be divisible by...
E. 16
F. 18
G. 20
H. 22
what is 5x^2 + 8x -4
Answer:
if your factoring the answer should be (5x-2) (x+2)
Answer:
(5x−2)(x+2)
Step-by-step explanation:
The following table shows the probability of rolling the numbers 1 through 8 on a fair 8 sided die what is the standard deviation of the random variable x the number that comes up on the die
Answer: 2.291
Step-by-step explanation:
Answer:
2.291
Step-by-step explanation:
The other guy awnser correct, checked through test
The sum of two numbers is 19.Their difference is 5. Find the number 5
Answer:
12 and 7
Step-by-step explanation:
Training field is formed by joining a rectangle and 2 semicircles rectangle is 93 m long and 61 m wide what is the length of a training track running around the field use pi and don't round answer
Complete Question
The diagram for this question is shown on the first uploaded image
Answer:
The length of a training track running around the field is [tex]Z = 377.54 \ m[/tex]
Step-by-step explanation:
From the question we are told that
The length of the field is [tex]L= 93 \ m[/tex]
The width of the field is [tex]W = 61 \ m[/tex]
The length of the two semicircle is mathematically evaluated as
[tex]A = 2 * \pi * \frac{W}{2}[/tex]
substituting values
[tex]A = 2 *3.142 * \frac{61}{2}[/tex]
[tex]A = 191.54 \ m[/tex]
Now the length of a training track running around the field is
[tex]Z = A + 2 L[/tex]
substituting values
[tex]Z = 191.54 + 2 (93)[/tex]
[tex]Z = 377.54 \ m[/tex]
What is the slope of the line through (-9,-6)(−9,−6)left parenthesis, minus, 9, comma, minus, 6, right parenthesis and (3,-9)(3,−9)left parenthesis, 3, comma, minus, 9, right parenthesis?
Answer:
[tex]-\dfrac{1}{4}[/tex]
Step-by-step explanation:
Given two points (-9,-6) and (3,-9). The slope of the line through the points is determined by the formula:
[tex]Slope, m=\dfrac{y_2-y_1}{x_2-x_1} ,$ where (x_1,y_1)=(-9,-6), (x_2,y_2)=(3,-9)\\$Therefore:\\ m=\dfrac{-9-(-6)}{3-(-9)}\\=\dfrac{-9+6}{3+9}\\=\dfrac{-3}{12}\\\\m=-\dfrac{1}{4}\\[/tex]
The slope of the line through the points (-9,-6) and (3,-9) is [tex]-\dfrac{1}{4}[/tex]
Answer:
the slope of the line through the points (-9,-6) and (3,-9) is [tex]-\dfrac{1}{4}[/tex]
Step-by-step explanation:
Given that,
Points (x₁ , y₁) is (-9,-6) respectively and
( x₂ , y₂) is (3,-9) respectively.
The slope of the line through the points is determined by the formula:
[tex]Slope, m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
where x₁ = -9
y₁ = -6
x₂ = 3
y₂ = -9
Therefore:
[tex]\\ m=\dfrac{-9-(-6)}{3-(-9)}\\=\dfrac{-9+6}{3+9}\\=\dfrac{-3}{12}\\\\m=-\dfrac{1}{4}\\[/tex]
Therefore, the slope of the line through the points (-9,-6) and (3,-9) is [tex]-\dfrac{1}{4}[/tex]
Brainliest question please help please help me now plz
Answer:
Option A) Inside the circle
Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The radius is equal to the distance from the center to any point on the circle
the formula to calculate the distance between two points is equal to
[tex]d\sqrt{(y2-y1)^2+(x2-x1)^2 }[/tex]
we have
A(-5,-8),M(-1,-3)
substitute the values
[tex]r=\sqrt{(-3+8)^{2}+(-1+5)^{2}}[/tex]
[tex]r=\sqrt{(5)^{2}+(4)^{2}}[/tex]
[tex]r=\sqrt{41}\ units[/tex]
step 2
Find the distance from the center to point V
we know that
If the distance from the center to point V is equal to the radius, then the point V lie on the circle
If the distance from the center to point V is less than the radius, then the point V lie inside the circle
If the distance from the center to point V is greater than the radius, then the point V lie outside the circle
we have
A(-5,-8),V(-11,-6)
substitute in the formula
[tex]d=\sqrt{(-6+8)^{2}+(-11+5)^{2}}[/tex]
[tex]d=\sqrt{(2)^{2}+(-6)^{2}}[/tex]
[tex]d=\sqrt{40}\ units[/tex]
so
[tex]\sqrt{40}\ units< \sqrt{41}\ units[/tex]
The distance from the center to point V is less than the radius
therefore
The point V lie inside the circle
Hope that helped :)
Neglecting air resistance, the distance h(t) in feet traveled by a freely falling object is given by the function , where t is time in seconds. The height of a certain tower is 912 feet. How long would it take an object to fall to the ground from the top of the building? Round to nearest 0.1 second
Answer:
t = 7.54 seconds
Step-by-step explanation:
The distance h(t) in feet traveled by a freely falling object is given by the function :
[tex]h(t)=16t^2[/tex]
The height of a tower is 912 feet.
It is required to find the time it will taken to fall on ground from the top of the building. It can be calculated as :
[tex]16t^2=912\\\\t=\sqrt{\dfrac{912}{16}}\\\\t=7.54\ s[/tex]
So it will taken 7.54 seconds to fall on the ground.
12a − 3(7 + 5a)
help pls
Answer:
-3a-21
Step-by-step explanation:
Answer:
27a-21
Step-by-step explanation:
12a-3(7+5a)
distribute the 3
3x7=21
3x5a=15a
12a-21+15a
12a+15a=27a
27a-21
A circular table top has a radius of 60cm. A force of 650N is applied to the whole table top. Calculate the pressure in N/m to 4sf
Answer:
i hope its understood....
The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. The Carpeteria's installation price is $50 but the store charges $13 for each square yard. For what number of square yards of carpeting will the cost, including installation, be the same for both stores? 6a) What expression that represents the cost of having Magic Carpet install carpeting: 6b) What expression that represents the cost of having Carpeteria install carpeting: 6c) Write an algebraic equation that represents when the cost of installing carpet by the two companies will be the same: 6d) For what number of square yards of carpeting will the cost, including installation, be the same for both stores? Solve the equation in 1c. Show your work.
Answer:
The cost of the carpet at Magic Carpet is: 90 + 9*(area of carpet)
The cost of carpet at Carpeteria is: 50 + 13*(area of carpet)
The algebraic expression for which the cost is the same is: 90 + 9*(area of carpet) = 50 + 13*(area of carpet)
The area of carpet for which the cost is the same is: 10 square yard
Step-by-step explanation:
6a) The cost for magic carpet:
This company charges a fixed fee and a price for each square yard of carpeting, therfore the expression for the cost is:
cost = 90 + 9*a
Where a is the area of carpet to be installed.
6)b) The cost for Capeteria:
This company also charges a fixed fee and a price for each square yard of carpeting, so the expression is:
cost = 50 + 13*a.
6) c) The algebraic expression for the cost to be the same in both stores:
90 + 9*a = 50 + 13*a
6) d) We need to solve the expression above for a:
50 + 13*a = 90 + 9*a
13*a - 9*a = 90 - 50
4*a = 40
a = 40/4 = 10
The list below shows the number of push-ups students could complete in 1 minute. 14, 19, 20, 12, 14 Find the mean and median number of push-ups completed. Please write the answer in this format: mean= ___ median= ____
Answer:
Mean= 15.8, Median= 14.
Step-by-step explanation:
To find the mean, we need to find the average. We will simply need to add up all of the values and divide by how many there are.
Therefore:
[tex]\frac{14 + 19 + 20 + 12 + 14}{5}[/tex]= 15.8 = Mean.
To find the median, you can arrange the numbers in increasing order and find the middle value. You can do this like so:
12, 14, 14, 19, 20
The number in the middle of 14.
Can someone plz help me?
Answer:
The first graph
Step-by-step explanation:
-2a - 5 > 3
-2a > 8
a < -4 (when divided by a negative number, the inequality sign will be flipped)
Therefor the first graph shows the solutions
Prosta aa i prosta bb są do siebie prostopadłe, a także prosta bb i prosta cc są do siebie prostopadłe. Wybierz poprawne uzupełnienie zdania. Prosta aa jest prostopadła / równoległa do prostej cc.
Answer:
- In a 3-D setting, straight line aa can be perpendicular or parallel to straight line cc.
- In a 2-D setting, straight line aa can only be parallel to straight line cc.
- W ustawieniu trójwymiarowym linia prosta aa może być prostopadła lub równoległa do linii prostej cc.
- W ustawieniu 2-D linia prosta aa może być równoległa do linii prostej cc.
Step-by-step explanation:
English Translation
Straight line aa and straight line bb are perpendicular to each other, as well as straight line bb and straight line cc are perpendicular to each other. Choose the correct completion of the sentence. Line aa is perpendicular / parallel to line cc.
Solution
If the frame of reference for the lines is in 3-D, then, it is the straight line aa can also be perpendicular to the straight line cc in the same vein as the x, y and z component lines are usually all perpendicular to one another. Note that straight line aa could also be parallel to straight line cc in a 3-D frame of reference.
But in a 2-D frame of reference, straight line aa can only be parallel to straight line cc. This is because the only directions that straight line bb can be perpendicular to, in a 2-D setting, are all in the same parallel direction.
In Polish/Po polsku
Jeśli układ odniesienia dla linii jest w 3-D, to jest to linia prosta aa może być również prostopadła do linii prostej cc w tej samej żyle, ponieważ linie składowe x, y i z są zwykle wszystkie prostopadłe do jednego inne. Należy zauważyć, że linia prosta aa może być również równoległa do linii prostej cc w trójwymiarowym układzie odniesienia.
Ale w dwuwymiarowym układzie odniesienia linia prosta aa może być tylko równoległa do linii prostej cc. Jest tak, ponieważ jedyne kierunki, w których prosta bb może być prostopadła, w ustawieniu 2-D, wszystkie są w tym samym kierunku równoległym.
Hope this Helps!!!
Mam nadzieję że to pomoże!!!
:
Identify the following given the Quadratic Function graphed below. **Do NOT use the space bar when typing your answers.
Vertex (ordered pair)=
Axis of sym(equation)=
Answer:
Axis of symmetry: x = 1
Vertex = [tex](1,-4)[/tex]
Step-by-step explanation:
Given: graph indicating quadratic function
To find: Vertex (ordered pair), axis of symmetry
Solution:
A vertical line that divides the parabola into two congruent halves is known as the axis of symmetry.
The point where the parabola crosses its axis of symmetry is known as the vertex of a parabola.
From the graph,
axis of symmetry: x = 1
Vertex = [tex](1,-4)[/tex]
Nar donated to 4 charities last year. She gave £175 to each of these charities. This year Rana wants to donate the same total amount between 6 charities. Each charity will receive an equal amount How much will each charity receive this year?
Answer:
£116.67
Step-by-step explanation:
Given;
Nar donated to 4 charities last year. She gave £175 to each of these charities.
The total amount Nar donated is;
Nar = 4 × £175 = £700
For Rana to donate the same amount equally among 6 charity, to determine the amount each charity would receive this year, we need to divide the total amount by the number of charities;
A = £700/6
A = £116.67
Three to the sixth power divided by three to the third power
let's first convert this to number form.
3^6 / 3^3= what?
to divide a number with the same base but different exponent, we simply subtract the second exponent by the first exponent.
3^6 / 3^3 = 3^6-3=3^3
1
2
3
TIME REMAININ
01:53:10
Jalen is buying a new car. He has the options below.
Model: compact, luxury, sport
Transmission: automatic, manual
Color: red, blue, black, yellow
Jalen decides that he wants a yellow car. What is the total number of choices he has?
5
6
12
24
Mark this and return
Save and Exit
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Submit
antentViewers. Assessme
Activit
Answer:
5
Step-by-step explanation: