Step-by-step explanation:
The gender of a child which is either a boy or a girl is determined by the XX-chromosomes, or XY-chromosomes.
Since the couple plan to have 5 children, the chance of a child being a boy is equal to the chance of it being a girl - the chances are 50/50.
What we do to achieve our aim is to run a simulation that would add an X or Y to an X for all 5 children.
Doing this 125 times, we obtain the number of trials we desire.
For each trial, we get for each child, C:
C1: X + (X or Y)
C2: X + (X or Y)
C3: X + (X or Y)
C4: X + (X or Y)
C5: X + (X or Y)
Since the chance of having an X is equal to the chance of having a Y, they equal probability, which is 0.5 for each.
To determine the annual yield (rate of return) on an investment, divide the income from the investment for the year by the original amount invested. Look at the example. Then, calculate the annual yield for the other investment
Savings account: $4 / $200 = 0.02 x 100 = 2%
Bond: $85 / $1000 = 0.085 x 100 = 8.5%
Real Estate: $6,400 / $40,000 = 0.16 x 100 = 16%
whats the formula for area of an rectangle
Answer:
L (lengh) · W (width)
Step-by-step explanation:
Tp find the area of a rectangle, you always have to multiply the length by the width. You do this because there are individual little array-like squares that make up the area. You could just count the square units, but multiplying is faster.
Answer:
For Perimeter its 2times length + 2times width
and for Area its: length times width
Hope this helps :)
what is the slope of the line shown below?
Answer:
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-4-2)/(-1-2)
m=-6/-3
m=2
I need help please I need to get the right answer
Answer:
33
Step-by-step explanation:
djjsjskskskakakkaka
Convert y = 8x^2-80x-32 to vertex form by completing the square.
Answer:
y = 8(x-5)^2 -232
Step-by-step explanation:
Factor out the 8 to get
y = 8(x^2-10x-4)
y = 8(x-5)^2 -232
Answer:
y = 8 (x - 5)^2 - 232
Step-by-step explanation:
Dividing the whole equation by 8, we get:
y = 8 (x^2 - 10x - 4)
y = 8 (x - 5)^2 - 232
Hope this helps!
A line has the equation y=x+3
What are the coordinates of the point where the line intersects the y and x axis?
Answer:
(0, 3 ) and (- 3, 0 )
Step-by-step explanation:
Where the line crosses the y- axis the x- coordinate is zero.
Substitute x = 0 into the equation and solve for y
y = 0 + 3 = 3
Thus the y- intercept is (0, 3 )
Where the line crosses the x- axis the y- coordinate is zero.
Substitute y = 0 into the equation and solve for x
0 = x + 3 ( subtract 3 from both sides )
- 3 = x
Thus the x- intercept is (- 3, 0 )
someone please help me, I’m struggling :(
Answer:
constant because it isn't going up or down, just moving straight
Step-by-step explanation:
Answer:
constant
Step-by-step explanation:
Since this is a horizontal line the slope is zero
This means the graph is constant
Please help! Sarah’s dogs:
Create frequency tables to represent the morning and afternoon dogs as two sets of data. Group the weights into classes that range 10 pounds. (Table is in second attachment)
Answer:
For Sarah's dogs, we have:
Morning:
39, 21, 12, 27, 23, 19, 19, 31, 36, 25
if the ranges are:
A) 10 pounds to 19 pounds: here we have the dog of 12, and two dogs of 19.
B) 20 to 29: one of 21 pounds, one of 27, one of 23 and one of 25, so here we have 4 dogs.
C) 30 to 39. here we have the left 3 dogs.
then the table is:
[tex]\left[\begin{array}{ccc}range&dogs\\10to19&3\\20to29&4\\30to39&3\end{array}\right][/tex]
For the afternoon, the weights of the dogs are:
15, 51, 8, 16, 43, 34, 27, 11, 8, 39
So the ranges:
0 to 9: here we have two dogs of 8.
10 to 19: 3 dogs, 15, 16 and 11.
20 to 29: 1 dog of 27
30 to 39: 2 dogs of 34 and 39
40 to 49: one dog of 43
50 to 59: one dog of 51.
the table is:
[tex]\left[\begin{array}{ccc}range&dogs\\0to9&2\\10to19&3\\20to29&1\\30to39&2\\40to49&1\\50to59&1\end{array}\right][/tex]
Answer:
No hate but Facundo your answer is so complicated
Step-by-step explanation:
what numbers does a,b,c represent and you have two tables but after abc I just don't understand can someone please help me?!? Thanks for answering it though.
not sure what this one is
Answer:
37
Step-by-step explanation:
If this is a regular hexagon, the sides have the same length
3y +19 = 6y+1
Subtract 3y from each side
3y+19-3y = 6y-3y+1
19 = 3y+1
Subtract 1 from each side
19-1 = 3y+1-1
18 = 3y
Divide each side by 3
18/3 = 3y/3
6 =y
ST = 6y+1
=6*6+1
=36+1
= 37
Answer:
37 units
Step-by-step explanation:
sides are equal
3y+19=6y+1
3y= 18
y= 6
3y+19= 3*6+19= 37
QR=ST= 37 units
Factor-2 out of -6x + 10
Answer:
3x - 5
Step-by-step explanation:
divide both numbers by -2
Does anyone know the answer ?
Answer:
Using Piragorean Theorem:
[tex]x=\sqrt{7^2+10^2}=\sqrt{100+49}=\sqrt{149}[/tex]
Answer:
[tex]\sqrt{149[/tex]
Step-by-step explanation:
7² + 10² = 12.21²
49 + 100 = 149
A farmer finds that if she plants 25 trees per acre, each tree will yield 41 bushels of fruit. She estimates that for each additional tree planted per acre, the yield of each tree will decrease by 1 bushel. How many trees should she plant per acre to maximize her harvest?
Answer:
17
Step-by-step explanation:
Let F be the number of fruit per acre
F = (25 + x) × (41 - x)
F=1025 -25x + 41x -x²
F=-x²+16x+1025
The maximum yield is at the maximum of that expression, which is at
[tex]x=-\frac{b}{2a} =>-\frac{16}{-2\times1}[/tex]
x=8
So apparently she currently has far too many trees per acre. To get the maximum yield, she needs to reduce the number of trees per acre by 8.
So the number of trees per acre for maximum yield is 25-8 = 17.
5x – 7y= 16 2 + 7y = 8.
what is x?
Answer:
x=45/6
Step-by-step explanation:
2+7y=8. 7y=8-2. 7y=6
7=7. y=6\7
insert the value of y in the second equation. 5x-7y=16
5x-7(6/7)=16
5x-49\6=16
collect the liketerms together
5x=16+49/6
5x=145/6(divide both sides by 5)
x=29/6
x=45/6
further.
confirm if the 2 in the second equation has an X coz the questions are normally set with both equations having both values x and y
Q3. Explain any one congruency Property with real world example
how to find X using pythagorean theorem if the other two sides are 10 and 8
Answer:
x= 13
Step-by-step explanation:
10*10+8*8=x2
100+64=x2
164=x2l
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Answer:
work is shown and pictured
urgent please help me!!!!
Answer:
D. both lines
Step-by-step explanation:
I am 100% sure! Please give brainiest!!!
There are 24 students in Julie’s class. 6 of these students are boys. What percent of the class are boys
Answer:
25%
Step-by-step explanation:
Take the number of boys over the total
6/24
1/4
Change to a decimal
.25
Change to a percent
25%
Work out 50 as a presentage of 10
Answer:
500%
Step-by-step explanation:
10= 100%
50= 5*10= 5*100%= 500%
Find the volume of the pyramid.
Answer:
140
Step-by-step explanation:
B=35
1/3 (35)(12)
= 140
To make 100g of jam you need 19g of strawberries , 53g of blackberries and the rest should be sugar. what is the ratio of blackberries to sugar? give answer in simplest form.
Answer:
53:19:28
Step-by-step explanation:
Answer:
53:28
Step-by-step explanation:
the mass of sugar= 100-(53+19)
=100-72
=28g
therefore: ratio of blackberries to sugar is
=53g/28g
=53:28
Find the y-intercept of the following equation. Simplify your answer.
y
=
9
10
x
+
7
6
y-intercept =
Answer:
Brainliest!Step-by-step explanation:
the equation is y=mx+b
the b part is the y-intercept
so in your equation... the y=intercept would be 7/6
What is the y-value when x equals -12.
Answer:
-128 it’s on the table
Step-by-step explanation:
HEY!HERE IS UR ANSWER:
So as x=-12
Well then y=-200-6(-12)
y=-200+72 {Positive 72 cause negative 6 * negative 12 equals positive 72}
y=-128
HOPE IT MAKES UR DAY BETTER!!
Which of the following is a quadratic function?
1. f(x) = 0x^2 + 3x - 6
2. f(x) = 3 - 4x^2
3. f(x) = 2^x
4. f(x) = 2x + 5
the function of quadratic is number4
Solve the following math problem using Roman numerals.
VII + X =
XIV
XVII
XV
XX
Answer:
XVII
Step-by-step explanation:
VII + X =
V = 5
I = 1
X = 10
5+1+1 + 10 = 17
XVII
Jeanine Baker makes floral arrangements. She has 10 different cut flowers and plans to use 6 of them. How many different selections of the 6 flowers are possible?
Answer:
210 ways
Step-by-step explanation:
In the question, the combination should be computed.
Number of ways of selection 6 flowers = nCr =10C6
[tex]\frac{n!}{r!(n-r)!}[/tex] =[tex]\frac{10!}{ 6!(10-6)!}[/tex]
=3628800/17280
=210
Therefore, there are 210 ways in which 6 flowers can be selected from the available 10 flowers.
Answer:
Therefore, there are 210 ways in which 6 flowers can be selected from the available 10 flowers.
Step-by-step explanation:
explanation
A) Complete the table of values for y= x^2 - 4x
Answer:
y = x² - 4x
x = -1 y = 5
x = 0 y = 0
x = 1 y = -3
x = 2 y = - 4
x = 3 y = - 3
x = 4 y = 0
x = 5 y = 5
Hope this helps.
The equivalent values to complete the table are 5, -1, -4 and 0
Given the function according to the table shown:
[tex]y= x^2 - 4x[/tex]
When x = -1
[tex]y= (-1)^2 - 4(-1)\\y=1+4\\y=5[/tex]
When x = 1
[tex]y= (1)^2 - 4(1)\\y=1-4\\y=-3[/tex]
When x = 2
[tex]y= (2)^2 - 4(2)\\y=4-8\\y=-4[/tex]
when x = 4
[tex]y= (4)^2 - 4(4)\\y=16-16\\y=0[/tex]
Hence the equivalent values to complete the table are 5, -1, -4 and 0
Learn more here: https://brainly.com/question/12229583
Help which expression is equivalent to this one? cuhhhhh.....!!
Answer:
3^ 6
Step-by-step explanation:
3^-2 * 3^8
We know that a^b * a^c = a^(b+c)
3^(-2+8)
3^ 6
Answer: [tex]3^{6}[/tex]
Step-by-step explanation: Since these two powers have the same base of 3, we can multiply them together by adding their exponents.
So [tex]3^{-2}[/tex] [tex]x[/tex] [tex]3^{8}[/tex] is [tex]3^{6}[/tex].
This idea is called the product rule.
Factor the trinomial by grouping.
- 13x + 6 + 6x^2
Answer:
(2x-3)(3x-2)
Step-by-step explanation:
[tex]-13x+6+6x^2= \\\\6x^2-13x+6= \\\\6x^2-4x-9x+6= \\\\2x(3x-2)-3(3x-2)= \\\\(2x-3)(3x-2)[/tex]
Hope this helps!
Pentagon A B C D E is reflected across the line of reflection m to pentagon A prime B prime C prime D prime E prime. Pentagon A prime B prime C prime D prime E prime is rotated about point C prime 180 degrees clockwise. Which rule describes the composition of transformations that maps figure ABCDE to figure A"B"C'D"E"? 90 degree rotation about point C prime composition reflected across line m Reflected across line m composition 90 degree rotation about point C prime 180 degree rotation about point C prime composition reflected across line m Reflected across line m composition 180 degree rotation about point C prim
Answer: It’s C i got it right on the test
Step-by-step explanation:
RC’ ,180 o r m
Answer:
It's C I got a 100 on the test
Step-by-step explanation:
A and B have to be wrong because there is no 90° rotation and D isn't right because it's backwards
