Answer:
0.9375 ; 0.5
Step-by-step explanation:
Given that :
p = 0.5
Probability model for the Number of girls the couple has :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
P(x = 0) = 4C0 * 0.5^0 * 0.5^4 = 0.0625
P(x = 1) = 4C1 * 0.5^1 * 0.5^3 = 0.25
P(x = 2) = 4C2 * 0.5^2 * 0.5^2 = 0.375
P(x = 3) = 4C3 * 0.5^3 * 0.5^1 = 0.25
P(x = 4) = 4C4 * 0.5^4 * 0.5^0 = 0.0625
Probability of having atleast one girl
Number of trials, n = 4
P(x ≥ 1) = p(x = 1) + p(x = 2) + p(x = 3) + p(x = 4)
Using the relation :
P(x =x) = nCx * p^x * (1 - p)^(n - x)
Using calculator ;
P(x ≥ 1) = 0.9375
Probability of having exactly one boy or exactly one girl
1 boy 3 girls OR 1 girl 3 boys
P(x = 1)
P(x =x) = nCx * p^x * (1 - p)^(n - x)
P(x = 1) = 4C1 * 0.5^1 * 0.5^3
P(x = 1) = 4 * 0.5 * 0.125
P(x = 1) = 0.25
The probability of having one girl, 3 boys and vice versa is 0. 25
Hence, Probability of having exactly one boy or exactly one girl
0.25 + 0.25 = 0.5
Martha needs 28 strawberries for every 4 smoothies she makes. plete the table using equivalent ratios.
Answer:
strawberries smoothies
28 4
21 3
70 10
Step-by-step explanation:
I need help with this
Answer:
5 best answer
Step-by-step explanation:
I will give you best answer because firstly change the multipy form and change denomiter and numerator then solve
Answer:
1. 1 divided by 1 = 1
2. 4 divided by 1 = 4
3. 5
I need help with this
Answer:
⁴√16³ˣ
Step-by-step explanation:
16³/⁴ ˣ
The above can be expressed as follow:
16³/⁴ ˣ = 16³ˣ/⁴
Recall:
Aᵐ/ⁿ = ⁿ√Aᵐ
Therefore,
16³ˣ/⁴ = ⁴√16³ˣ
Thus, 16³/⁴ ˣ is equivalent to ⁴√16³ˣ
PLEASE HELP FAST!!! How many solutions does this system have?
Y=3/4x+-5
-3x+4y=-20
Which one is it?
A. One
B. Two
C. An infinite number
D. No solution
Step-by-step explanation:
y=3/4x+(-5)-4x+4(3/4x+-5)=-20-4x+3x-20=-20
-x=-20+20
-x=0
x=0
x=0 in y=3/4x-5y=3/4×{0}-5
y=-5
How do you find the slope of a line? How do you know if two lines are parallel? give examples
Answer:
finding slope: The slope will be the same for a straight line no matter which two points you pick as you know. All you need to do is to calculate the difference in the y coordinates of the 2 points and divide that by the difference of the x coordinates of the points(rise over run). That will give you the slope.
parallel: We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel. If the slopes are different, the lines are not parallel. Unlike parallel lines, perpendicular lines do intersect.
hope this helps!
Answer:
The slope of a line is the rise/run of how far away the points are from each other. Say you have the equation y=3/4x-6, the slope is 3/4 so that means you plot your first point at -6 on the y-axis, because that is your y-intercept, and then you will go up 3, right 4. You will continue to do this until you have enough points to make a line. When two lines are parallel, they will always have the same slope. So the lines y=1/2x+4 and y=1/2x-3 are parallel because not only do they have the same slope, they do not intersect at all, which is a requirement for parallel lines. I hope this helps!!
Step-by-step explanation:
Convert 0.3 to a fraction and percent.
Answer: 3/10 and 30 %
Step-by-step explanation:
3/10 and 30 %
Answer:
3/10 30%
Step-by-step explanation:
i need help graphing this problem
−7x+5y=35
Answer:
slope: 7/5
y-int: (0,7)
hope this helps!!:)
Step-by-step explanation:
which slice would be bigger: 1/4 of a 12 inch pizza or 1/8 of an 18 inch pizza
Answer: 1/4 of a 12 inch pizza
Step-by-step explanation: hope this helps :)
Answer:
1/4 of a 12 inch pizza is bigger.
Step-by-step explanation:
1/4 of 12 inches equals 3 inches.
1/8 of 18 inches equals 2.25 inches.
This makes 1/4 of a 12 inch pizza bigger.
PLEASE HELP ASAP!!!!
Carly mowed 2 more lawns than Rocco each week for 6 weeks. Carly mowed a total of 18 lawns. How many lawns did Rocco mow each week?
BEST ANSWER WILL BE MARKED BRAINLIEST!!!
Answer:
I think she mowed 6 lawns.
Step-by-step explanation:
Answer:
1 lawn each week
Step-by-step explanation:
Rocco lawns mowed each week=x
Carly's lawns mowed each week=x+2
Equation to show how much Carly lawned for 6 weeks
18 is the total amount of lawns
6 is the number of weeks
6(x+2)=18
Solve for x
6x+12=18
Subtract 12 on both sides
6x=6
x=1
x is the amount that Rocco lawned
Help please, Please Help.
Suppose f(x) = x2 + 1. Find the graph of
f(4x).
Answer:
Step-by-step explanation:
2(4x) + 1 = 8x + 1
graph
I'LL MARK UR ANSWER BRAINLIST!!
2. How can we use the distributive property to solve 41* 45? (Please show work, and do not just provide a final answer).
Answer: =1845
Step-by-step explanation: hope this help
what fraction is shown on the number line?
Answer:
3/4 or c
Step-by-step explanation:
Answer:
3/4 or c
Step-by-step explanation:
A backpack normally costs 25 dollars but it is on sale for 21 dollars. What percentage is the discount?
The packpack is 84% off.
A bag contains 30 marbles. There are 7 blue, 4 green,
7 red, 6 yellow, and 6 black marbles. Without looking,
Tarek reaches into the bag and draws one marble.
What is the probability he draws a black marble?
Answer: 1/5
Step-by-step explanation: it it trust me
PLEASE HELP!!! EMERGENCY How many y-values are there for each x-value in the function represented by the graph?
a. 0
b. 1
c. 2
d. indefinitely many
(I think it’s either b or d but I never learned this before)
Answer:
it's 1!!
Step-by-step explanation:
answering would help
Answer:
easy (4)
Step-by-step explanation:
A community orchestra is losing money. They have always sold tickets for
$12, but they decide to increase the price by $3. For their next concert, they
sell 200 tickets at the increased price.
Select the expression representing the amount of money earned from ticket
sales.
A. 200(12+3)
B. 200(12) + 3
C. 200(12-3)
D. 200(12) - 3
Help ASAP will give brainliest
Answer:
Step-by-step explanation:
I think it's a or b
Answer:
a
Step-by-step explanation:
Plsssss help I will mark you brainliest
Answer: 6y=13.5
Step-by-step explanation:
just multiply 6 by 2.25
Answer:
y = [tex]\frac{3}{8}[/tex]
Step-by-step explanation:
Given
6y = 2 [tex]\frac{1}{4}[/tex] ← change into an improper fraction
6y = [tex]\frac{9}{4}[/tex] ( multiply both sides by 4 to clear the fraction )
24y = 9 ( divide both sides by 24 )
y = [tex]\frac{9}{24}[/tex] = [tex]\frac{3}{8}[/tex]
Find the perimeter of AABC.
B
5x-19
2x +11
А
16
10
0 31
0 47
78
Answer:
78
Step-by-step explanation:
Since the base angles are congruent, then the triangle is isosceles and
AB = BC , that is
5x - 19 = 2x + 11 ( subtract 2x from both sides )
3x - 19 = 11 ( add 19 to both sides )
3x = 30 ( divide both sides by 3 )
x = 10
Then
AB = BC = 2x + 11 = 2(10) + 11 = 20 + 11 = 31
Thus
perimeter = 31 + 31 + 16 = 78
Answer: 78
Step-by-step explanation:
19.5 is what percent of 150?
Answer:
13
Step-by-step explanation:
Please mark brainlliest.
Answer:
13%
Step-by-step explanation:
19.5/150=0.13 = 13%
Abigail orders a book and
two identical DVDs from
Amazon. The total bill is
$42.95. If the book
costs $7.65, then how
much does each DVD
cost?
Answer:
$17.65
Step-by-step explanation:
First you have to subtract $7.65 from the total cost, $42.95.
Now, you have $35.30. Since she bought 2 DVD's, you have to divid $35.30 by 2.
Your answer is now $17.65, meaning that each DVD cost $17.65.
please help ssssssssss
Answer:
x = 1
Step-by-step explanation:
1/2(8x-6) = -1/3(9x-12) distribute
4x-3 = -3x+4 add 3x to both sides
7x-3 = 4 add 3 to both sides
7x = 7 divide by 7 on both sides
x = 1
How can we classify the following shapes ? Please choose answers that all apply !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
Answer:
A and C
Step-by-step explanation:
Help please !!!!!!! DUE NOWWW
Answer:
2
Step-by-step explanation:
Jace ran 22 miles. leah ran for y minutes. Jace ran twice as long A Leah. How long did leah ran?
A 24 minutes
B 20 minutes
C II minutes
D 44 minutes
Answer:
C. 11min
Step-by-step explanation:
If he ran twice as much as Leah u divide 22 by 2 and get 11 I am sorry if this is wrong.
OMG SOMEONE DO THESE FOR ME AND ILL GIVE U BRAINLIEST
Write the slope-intercept equation of a line with slope 4 and y-intercept -11. *
Answer: y = 4x - 11
Step-by-step explanation:
m = 4b = -11Which comparison is true?
0 2.6 < 2.07
05.08 < 5.21
O 5.08 > 5.40
O 2.6 > 2.65
Answer:
The correct answer is C
Step-by-step explanation:
I took the test and got a 100
3(2x + 4) = 72
What’s x
Answer: x = 6
Step-by-step explanation:
(3)(2x) = 6x
(3)(4) = 12
12-12 cancels out
72-12 = 60
6x/6 cancels the 6 out
60/6 = 6
x = 6