Answers
Answer:
Step-by-step explanation:
I love u
Related Questions
Which expression is equivalent to line l-5l + l3l?
-8
-2
2
8
Answers
Answer:
8
Step-by-step explanation:
|-5|+|3|
5+3
8
The Wilson family was one of the first to come to the U.S. They had 8 children. Assuming that the
probability of a child being a girl is .5, find the probability that the Wilson family had:
at least 5 girls?
at most 5 girls?
Answers
Answer:
0.3634 = 36.34% probability that the Wilson family had at least 5 girls.
0.8554 = 85.54% probability that the Wilson family had at most 5 girls.
Step-by-step explanation:
For each children, there are only two possible outcomes. Either it is a girl, or it is not. The probability of a child being a girl is independent of any other child. This means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
They had 8 children.
This means that [tex]n = 8[/tex]
The probability of a child being a girl is .5
This means that [tex]p = 0.5[/tex]
Probability that the Wilson family had: at least 5 girls?
This is:
[tex]P(X \geq 5) = P(X = 5) + P(X = 6) + P(X = 7) + P(X = 8)[/tex]
In which
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 5) = C_{8,5}.(0.5)^{5}.(0.5)^{3} = 0.2188[/tex]
[tex]P(X = 6) = C_{8,6}.(0.5)^{6}.(0.5)^{2} = 0.1094[/tex]
[tex]P(X = 7) = C_{8,7}.(0.5)^{7}.(0.5)^{1} = 0.0313[/tex]
[tex]P(X = 8) = C_{8,8}.(0.5)^{8}.(0.5)^{0} = 0.0039[/tex]
[tex]P(X \geq 5) = P(X = 5) + P(X = 6) + P(X = 7) + P(X = 8) = 0.2188 + 0.1094 + 0.0313 + 0.0039 = 0.3634[/tex]
0.3634 = 36.34% probability that the Wilson family had at least 5 girls.
At most 5 girls?
This is:
[tex]P(X \leq 5) = 1 - P(X > 5)[/tex]
In which
[tex]P(X > 5) = P(X = 6) + P(X = 7) + P(X = 8) = 0.1094 + 0.0313 + 0.0039 = 0.1446[/tex]
[tex]P(X \leq 5) = 1 - P(X > 5) = 1 - 0.1446 = 0.8554[/tex]
0.8554 = 85.54% probability that the Wilson family had at most 5 girls.
oscar had a long piece of string he cut it into 12 pieces each piece is 12.4 cm long how much string did he have to begin with solve the equation s/12 = 12.4
F. 0.97
G. 1.03
H. 148.8 cm
J. 149.2
Answers
Answer:
The answer is F. 0.97
Hope it helps you!
Step-by-step explanation:
In your opinion, which step includes a mistake:
when solving the expression
(6 1/2 + 2 3/4)-1.5×(4.5÷0.5)
should ALL parentheses be included as step one, or one set in step one and another in step 2?
Answers
Answer:
yes Cecilia make her first mistake in step 2
What is the difference of 1 and 1/3 and 5/6??
Answers
Answer:
By using cross multiplication method, 1/2 is the difference between two fractions 5/6 and 1/3.
Step-by-step explanation:
Answer:
0.5
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]1\frac{1}{3}- \frac{5}{6}=\frac{1}{2}[/tex]
0.5
What is the scale factor from AABC to AXYZ?
y
B
30
24
5
4
A 3C
18
N
A.
lco
O B. 6
C. 5
Answers
Answer: B. 6 because it's the actual answer.
The scale factor from triangle ABC to XYZ is 6.
Option B is the correct answer.
We have,
From the triangles ABC and XYZ.
Corresponding sides are given as:
AB = 6 x (XY)
BC = 6 x (YZ)
AC = 6 x (XZ)
This means,
The scale factor is 6.
Thus,
The scale factor from triangle ABC to XYZ is 6.
Learn more about triangles here:
https://brainly.com/question/25950519
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ILL GIVE BRAINLEST, classify the triangle below with work please :)
Answers
Answer:
A right triangle
Step-by-step explanation:
All interior angles in a triangle are equal to 180°.
x+x+2x = 180°
4x = 180°
x = 45°
So two of the angles are 45°, and the remaining angle is 45°×2 = 90° (a right angle).
Which function best shows the relationship between n and f(n)?
f(n) = 12(1.5)n
f(n) = 12(1.5)n−1
f(n) = 8(1.5)n
f(n) = 8(1.5)n−1
Answers
Answer: the answer is
Step-by-step explanation:
just kid
A campaign manager for a political candidate released a series of advertisements criticizing their opponent in an upcoming election. Their opponent previously had the support of 45% of voters, and the campaign manager wants to sample voters to test if support for their opponent has decreased.Let p represent the proportion of voters that support their opponent.Which of the following is an appropriate set of hypotheses for their significance test?
Answers
Answer:
C
Step-by-step explanation:
Khan
Considering that we want to test if the support for the opponent has decreased, the appropriate set of hypotheses for their significance test is given by:
C.
[tex]H_0: p = 0.45[/tex]
[tex]H_1: p < 0.45[/tex]
What are the hypothesis tested?At the null hypothesis, we test if the support for the opponent has not decreased, that is, it still is of 45%, hence:
[tex]H_0: p = 0.45[/tex]
At the alternative hypothesis, we test if the support has decreased, that is, it is less than 45%, hence:
[tex]H_1: p < 0.45[/tex]
Hence option C is correct.
More can be learned about hypothesis tests at https://brainly.com/question/26454209
a man has 25 coins in his pocket all of which are dimes and quarters. if the total value of his change is 430 cents, how many dimes and how many quarters does he have?
Answers
Answer:16 quarters and 3 dimes
Step-by-step explanation:
430/25 (Quarters) = 17
25x16
(Because you can’t have 17 since 25x17=425 leaving no room for dimes.)
=400
Now 430-400=30
30 more cent is needed,
30/10(Dime value)
Is 3, so the answer is the man has 16 quarters and 3 dimes
Determine the center and radius of the following circle equation:
x2 + y2 – 16x + 10y + 80 = 0?
Answers
Answer:
centre is (8, -5)
[tex]r = \sqrt{ {g}^{2} + {f}^{2} - c } \\ = \sqrt{64 + 25 - 80} \\ = \sqrt{9} \\ r = 3 \\ radius \: = \: 3 \: units[/tex]
Question 9 (5 points)
Simplify 4V256.
O A) 3
OB) 4
C) 5
OD 7
Answers
will give brainliest and is worth 40 points
Answers
Answer:
C = (2, -3)
r = 6
Step-by-step explanation:
(x - 2)² + (y + 3)² = 36
General form Circle equation
(x - h)² + (y - k)² = r²
(h, k) is the center = (2, -3)
r is the radius = √36 = 6
Under his cell phone plan, Alexander pays a flat cost of $69.50 per month and $5 per gigabyte. He wants to keep his bill under $85 per month. Write and solve an inequality which can be used to determine gg, the number of gigabytes Alexander can use while staying within his budget.
Answers
Answer:
3 gigabytes
Step-by-step explanation:
69.50 dollars + 5 dollars is 74.50 dollars add 5 dollars 79.50 add 5 dollars again and 84.50 Mark brainliest
Inequalities help us to compare two unequal expressions. Alexander can use 3 gigabyte of data to stay within his budget.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.
Given that Alexander pays a flat cost of $69.50 per month and $5 per gigabyte. Therefore, the total amount that Alexander pays in a month for x Gb of data used is,
Total Bill amount = Fixed cost + Variable cost for x Gb of data
= $69.50 + $5x
Now, as Alexander wants to keep his bill under $85 per month. Therefore, we can write the inequality as,
Total Bill amount < $85
69.50 + 5x < 85
5x < 85 - 69.50
5x < 15.5
x < 15.5/5
x < 3.1
Therefore, Alexander can use 3 gigabyte of data to stay within his budget.
Learn more about Inequalities here:
https://brainly.com/question/19491153
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what does the y intercept of this graph
Answers
Answer:
c
Step-by-step explanation:
c
Student is 19 years old in the world has a population of 6 billion assuming that the population continues to grow in annual rate of 1.4%, predict what the worlds population will be when the student is 73
Answers
find tan 0 where 0 is the angle shown
Answers
Answer:
Because tan represents [tex]\frac{opposite}{adjacent}[/tex] from θ (theta), the equation should be [tex]tan0[/tex]=[tex]\frac{15}{x}[/tex]. Let's leave this equation like that. Now, we need to find the unknown side length, x. We need to use Pythagorean Theorem, because we're given the other two side lengths. The equation should be [tex]x^{2}+15^{2}=17^{2}[/tex]. X should equal ±8 or 8, because a side length can't be a negative value. Now, we can plug in 8 into the equation to get [tex]tan0=\frac{15}{8}[/tex].
PLEASE HELP AND I WILL GIVE BRAINLIEST RN
Answers
Answer:
98
196in³
Step-by-step explanation:
number of cubes in two layers
7 * 7 * 2 = 98
New Volume
98 * 2 = 196in³
Answer:
1.) 98
2.) 196
Step-by-step explanation:
49 + 49 = 98
98 + 98 = 196
V = 196
You have ten box's of ten muffins each, and each muffin has been blueberry. Use an exponent to write an expression for the total number of blueberries
Answers
Answer:
I'm pretty sure it's 10 to the power of 3.
Step-by-step explanation:
What is the volume of the cylinder below?
Answers
Answer:
Step-by-step explanation:d
Identify the range of the function shown in the graph.
Answers
Answer:
The answer should be B: -1<y<3
Plz answer this correctly
Answers
9514 1404 393
Answer:
8 m
Step-by-step explanation:
The area of a circle of radius r is ...
A = πr²
The total area of the two circles is ...
80π m² = πr² +π(2r)² = 5πr²
r² = 16 m² . . . . . . . . . divide by 5π
r = 4 m . . . . . . . . . . . positive square root
The radius of the larger circle is 2r = 2(4 m) = 8 m.
Answer:
8 m is the answer.
Step-by-step explanation:
#CarryOnLearningLook at the data below from two random samples of a 100 students favorite lunch food from two different schools. which of the following inferences can be made from the data above?
A. Students at Grant Middle School don't eat lunch
B. Above the same amount of pizza will be sold at both schools
C. More Students at Jackson Middle School prefer cheeseburgers
D. Students at Grant Middle School are three times more likely to purchase salad than Jackson Middle School.
Answers
the ratio of the length of two similar re rectangles is 3 ratio 4. what is the scale ratio of their areas in
full solving
Answers
Answer:
9:16
Step-by-step explanation:
The ratio of sides of the lengths of rectangles is 3:4.
Now since the scale is constant. So the scale ratio of area will be square of the side ratio .That is :-
→ Ratio of Area = ( 3 : 4)²
→ Ratio of Area = (3/4)²
→ Ratio of Area = 9/16
→ Ratio of Area = 9:16
Hence the ratio of areas is 9:16 .I forgot to put the whole i-ready question ;_;
pls my brain is about to explode to oblivion...
(p.s I'm spending so much points)
Answers
Answer:
Dude, that’s hard!
Step-by-step explanation:
HELPPP
PLLS
DUE RN
WILL
GIVE BRAINLIST
X
X
X
X
Answers
The correct answer is 14.
An adult has a total of about 22.6 square feet (ft2) of skin. Use the fact that 1 m is approximately equal to 3.281 feet to convert this measurement to square meters (m2).
Answers
Answer:
2.09 square meters.
Step-by-step explanation:
There are about 3.281 * 3.281 = 10.764 square feet in one square meter. Therefore, 22.5 square feet is 22.5 / 10.764 = 2.09 square meters.
Add 473 base eight and 362 base eight
Answers
Answer:
1055
Step-by-step explanation:
473
+ 362
--------- 3 + 2 = 5, even in base 8
5
Now 7 + 6 = "thirteen" = 15 in base 8 so write 5 in the next column, carry 1
1
473
+ 362
---------
55
1 + 4 + 3 = "eight" = 10 in base 8. Write 0 in the next column, carry 1
1
473
+ 362
---------
1055
The National Collegiate Athletic Association (NCAA) cares about success for athletes both in their sports and in their education. Imagine a researcher hired by the NCAA wants to know how athletes' academic performance is affected by the stage of their competitive season. She examines performance in the pre-season, throughout the active competitive season, and post-season, having 150 athletes, from across several different sports, assessed during each period. What statistical analysis would be appropriate for this research
Answers
Answer:
a. one-way within-groups ANOVA
Step-by-step explanation:
Here, the research question meets the conditions required for a one-way within group ANOVA. One way within group anova allows for comparison between the mean of three or more groups or levels of one independent variable on a dependent variable. In the scenario above, the one independent variable is stage of the season with levels : (pre-season, throughout active season and post season) and the dependent variable being the athletes academic performance. It is a within group ANOVA as all subjects are used to test each level of the independent variable. Which is different from between groups where different subjects are assigned to different groups.
Find the area of a circle whose radius is 3½m
Answers
Answer:
38.48m squared
Step-by-step explanation:
Area = pi x radius squared
So
3.5 squared is 12.25
12.25 x pi is 38.48