Based on their own blood types a couple has a 0.75 probability of having a child with type A blood. If the couple has 4 children, what is the probability that they will have 2 children with type A blood?
A. 0.07
B. 0.21
C. 0.56
D. 0.75
Answer:
B. 0.21
Step-by-step explanation:
https://stattrek.com/online-calculator/binomial.aspx
put in 75% for success rate
4 for the amount of trials because that is the total of kids the couple has
2 for number of successes for how many kids would get Type A blood
once calculated you get.21 or answer B
Elena is feeding her neighbor’s dogs. Each dog gets 1/2 cup of dog food, and she uses 3 cups of food when she feeds them. How many dogs does her neighbor have?
Answer:
6
Step-by-step explanation:
1/2 cup = 1 dog
1 cup = 2 dogs
x3 = 6
Answer:
Elena has five dogs.
Step-by-step explanation:
Each dog eats two-third cups of dog food. A total of three and one-third cups of food is used up
Hamburger sales for 3 lb for $6 if Alicia buys 10 lb of hamburger how much will she pay
Answer:
Alicia will need to pay $20
Step-by-step explanation:
We first need to calculate the cost for one burger:
6 divided by 3 = $2 per burger
$2 x 10 lb. = $20
Answer:
$20
Step-by-step explanation:
3---- --6
10-----x
10*6= 60
60/3= 20
Point Q′ is the image of Q(5, –3) after a translation down 2 units and right 4 units. What are the coordinates of Q′?
Answer:
9,-5
Step-by-step explanation:
imagine the coordinate on a graph
if it helps draw a graph
PLEASE HELP!!! ITS URGENT
Answer:
B.
Step-by-step explanation:
A is 10. B is 12. C (2^4) is 16. D is 3.14.... B (12) is the greatest.
Hope it helps!
Mrs. Clark runs 1 3/4 miles in 1/3 hour How many miles can she run in one hour?
For what value of x do the expressions
2x+3 and 3x +1 have the same value?
Write a quadratic function in vertex form whose graph has the vertex ( -5. - 1) and passes through the point (-2.2).
Answer:
[tex](\frac{1}{3})(x+5)^2-1[/tex]
Step-by-step explanation:
So first let's write a graph in vertex form with a vertex of (-5, -1)
We get
a(x+5)²-1
We now need to determine a
we know that when x= -2 y=2 which means we have
a(-2+5)²-1=2
Solve for a
a(3)²=3
9a=3
a=3/9
a=1/3
Now that we know what a is equal to we can write our equation
[tex](\frac{1}{3})(x+5)^2-1[/tex]
Help fast please!!!!!!!
Answer: n=7+1/2
Step-by-step explanation:
We move all terms to the left:
2n+15-(30)=0
We add all the numbers together, and all the variables
2n-15=0
We move all terms containing n to the left, all other terms to the right
2n=15
n=15/2
n=7+1/2
Use the diagram to the right to solve for y.
A y = 13
B
y = 15
C. y = 7.5
D
y = 20
Answer: D y=20
Step-by-step explanation: I minus 115 and 120 and and multiplied 4x and i got y=20. I hope this helps
Solve using proportions.
The triangles are similar, find the length of side (k) using a proportion; having ratios within the two figures.
Note: If someone could please answer before this upcoming Monday.
Answer:
7.8 = k
Step-by-step explanation:
Since the figures are similar, we can use proportions
c k
----- = -------
b j
Substituting the values in
6.5 k
----- = -------
4 4.8
Using cross products
6.5 * 4.8 = 4k
31.2 = 4k
Divide each side by 4
31.2/4 = 4k/4
7.8 = k
What is the slope of the line represented by y = 5x - 7
Answer:
5
Step-by-step explanation:
Slope intercept form is y = mx + b
M is the slope
5 is the m
Answer:
5
Step-by-step explanation:
When your trying to find the slope of something you need to use slope intercept form.
what are major turning points in algebraic knowledge through out history
Answer:
There are a lot of turning point in the history of algebra one of those is the discovery of the plain and the quadrants by Rene Descartes. This discovery paved way to a lot of knowledge which was later on use in solving other complicated mathematical problems.
Step-by-step explanation:
Solve the equation using square roots
x^2 - 55 = 26
Answer:
x = ±9
Step-by-step explanation:
x² - 55 = 26
+55 + 55
x² = 81
x = √81
x = ± 9
Answer:
x = 9, -9
Step-by-step explanation:
x^2 - 55 = 26
x^2 = 81.
Now, you might think that x = 9, but don't be fooled. -9 squared is also equal to 81.
So, x = 9, -9
Write an equation in slope intercept for that passes through (-3,3) and is parallel to y=3x-2
escribe en cada fila dos divisiones que den el cociente o resultado que se te indica en la primera columna matemáticas con foto
Answer:
I don't know what you said
Step-by-step explanation:
But thanks for the points.
Quadrilateral WXYZ is a rectangle. Diagonals WY and ZX intersect at P. If PY=3x−5 and WP=2x+11, find the value of ZP.
ZP=43
ZP=25
ZP=16
ZP=66
Answer:
The right answer is ZP = 43
Step-by-step explanation:
I just took the quick check
{(–4, 6), (6, 5), (–2, –3), (0, –7), (2, 1)}
Answer:
Yes, its a function
Step-by-step explanation:
1. Find the cost of 3.5 yards of fabric if the fabric is priced at $6.00 per yard.
$210.00
$1.71
$21.00
$17.10
$21.00
Step-by-step explanation:
if 1 yard equal 6 dollars
do 6 times 3 = 18
and half of 6 is 3
add 18+3=21 dollars
pls solve these in the answer section i will give brianliest PLSSSSS
5.832 divided by 4
394.6 divided by 2
25.37 x 3.8
Answer:
0.00002237616
Step-by-step explanation:
Carmen has an average of 8 on two 10-point math quizzes. If she scored 10 on the third quiz, what is true of Carmen's average score on all three quizzes?
Answer:
9
Step-by-step explanation:
1. Which inequality represents this situation? At least 25 cats are on my
porch.
Answer:
Step-by-step explanation:
cats=c
at least it means that there are 25 minimum
c[tex]\geq[/tex]25
A bag contains 40 red and green marbles. The number of green marbles, g, is 9 times the number of red mapples, . How many red marbles are in the bag? O 4 O 6 O 34 O 36
Answer:
4
Step-by-step explanation:
You need to try out all the numbers.
lets start with 4
if there where 4 red marbles then there would be 9 times as many marbles
so 4 x 9 = 36
Now we add and see if the sum is 40
36 + 4 = 40
We got it on the first try
You can use the same method on more problems like these.
Hope this helps :)
I'm really struggling with this problem can someone please give me an examples like this problem or explain how to solve it an problems like it.
Answer:
Step-by-step explanation:
Ok so I'm not 100% sure how to solve this but what I would do is use the equation a^2 + b^2 = c^2 this equation is used to solve for the hypotenuse or the longest side of a triangle. To find a^2 you would do (21+15)^2 (Also this symbol ^ is the power symbol) and the answer would be 1296. b^2 would be 25^2 or 625. The equation turns out to be 1296 + 625 = c^2. c^2 (or x in this case) would be 1921. To find just c and not c^2 you would find the square root of 1921 which is 43.8292140016 or if rounded would be 43.8. Also this might not help if I misinterpreted the question...
Answer:
Hey astar its josiah we talked in 2020 u were friends w my brother elijah too
Step-by-step explanation:
we miss u
PLEASE HELP IM DESPERATE
The height of a male athlete testing his vertical jump can be modeled by h = − 16t ^2 + 14t. The height is h and the time is t. How many seconds is he in the air?
Answer:
0.88 (I think this is how Mrs. Futch wants it to be written)
Step-by-step explanation:
h=-16t^2+14t
(Substitute h with 0)
0=-16t^2+14t
(Factor)
0=2t(-8t+7)
2t=0 -8t+7=0
t=0 t=0.88
{0, 0.88}
Answer:
So everyone here in Mrs. Futch?
Step-by-step explanation:
It costs $3.60 to buy one lb of candy. How much would it cost to purchase 5 lbs of candy?
Answer:
18$
Step-by-step explanation:
The answer is 18$ because you multiply 3.60$ by 5 lbs
Finding missing angles
please help!! i’m literally begging
Answer:
65
Step-by-step explanation:
the square means 90 add that to 25 and subtract from 180
Answer:
x = 65
Step-by-step explanation:
The measure of the entire angle is 180°. The angle on the furthest left (with a square in it) is a right angle, meaning that it is 90°.
All three of the angles (90°, x°, 25°) all add up to the measure of the line, which is 180°. So, we can write this equation.
90 + x + 25 = 180
Subtract 90 and 25 from both sides.
90 + x + 25 - 90 - 25 = 180 - 90 - 25
x = 65
please help asap!!!!
Answer:
12
Step-by-step explanation: 60
Given X is midpoint of RS , MX =XS Prove Mx =RX
Answer:
Transitive Property
Step-by-step explanation:
Since X is the midpoint, it bisects the points RS. If MX=XS, and RS is the same as XS, then they are the same. This also follows the Transitive propety (if a=b and b=c, then a=c)
what is 4x+3x-12+1x
Answer:
8x-12
Hope it helped plz mark me brainliest PlzPlz
Answer:
8x-12
Step-by-step explanation:
You need to find a number/numbers that have the same variable if the variable is the same then you can add or subtract them
You can add 4x, 3x and 1x
4x plus 3x plus 1x is 8x
Since -12 is alone you can leave it as it is
8x-12