Step-by-step explanation:
Are you sure you wrote the answers correctly?
answer: x=2.5
because i solved it on canvas
What is 2 plus 2 giving brainliest
Answer:
four
Step-by-step explanation:
2 plus 2 = 4 jdhdvsjsisbebsfajwjebdnx xbdus
Step-by-step explanation:
the answer to 2 plus 2
is four
2+2=4
PLEASE HELP!! Four fair coins are flipped and the number of heads that land face up are counted. The probability distribution of the number
of heads face up is shown below. What is the probability that more than one coin lands heads up?
T
1 2
3
4
P(T)
0.0625 0.25 0.375 0.25 0.0625
O 0.6875
O 0.3125
O 0.375
O 0.25
The probability that more than one coin lands heads up is 0.9375.
What is a binomial distribution in probability?In an experiment with two possible outcomes, the likelihood of exactly x successes on n repeated trials is known as the binomial probability.
The binomial probability is [tex]^nC_xp^xq^{n-x}[/tex].
Given, Four fair coins are flipped and the number of heads that land face up are counted.
Let, 'p' be the probability of getting a head and 'q' be the probability of getting a tail,
So, p = 1/2 and q= 1/2.
Therefore, The probability that more than one coin lands heads up is,
P(X ≥ 1) = P(X = 1) + P(X = 2) + P(X = 3) + P(X = 3).
P(X ≥ 1) = [tex]^4C_1p^1q^3 + ^4C_2p^2q^2 + ^4C_3p^3q^1 + ^4C_4p^4q^0[/tex].
P(X ≥ 1) = [tex]^4C_1(1/2)^1(1/2)^3 + ^4C_2(1/2)^2(1/2)^2 + ^4C_3(1/2)^3(1/2)^1 + ^4C_4(1/2)^4(1/2)^0[/tex].
P(X ≥ 1) = 4(0.5×0.125) + 6(0.25×0.25) + 4(0.125×0.5) + 1(0.0625).
P(X ≥ 1) = 0.25 + 0.375 + 0.25 + 0.0625.
P(X ≥ 1) = 0.9375.
So, The probability of getting one or more heads is 0.9375.
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What value of x makes this equation true? x/4 = 44
Answer:
176
Step-by-step explanation:
Find the value of x in the trapezoid below
Answer:
I think its 108. Hope this helps!
Step-by-step explanation:
12% of all college students volunteer their time. Is the percentage of college students who are volunteers different for students receiving financial aid? Of the 331 randomly selected students who receive financial aid, 43 of them volunteered their time. What can be concluded at the
α
= 0.01 level of significance?
For this study, we should use
Select an answer
The null and alternative hypotheses would be:
H
0
:
?
Select an answer
(please enter a decimal)
H
1
:
?
Select an answer
(Please enter a decimal)
The test statistic
?
=
(please show your answer to 3 decimal places.)
The p-value =
(Please show your answer to 4 decimal places.)
The p-value is
?
α
Based on this, we should
Select an answer
the null hypothesis.
Thus, the final conclusion is that ...
The data suggest the populaton proportion is significantly different from 12% at
α
= 0.01, so there is sufficient evidence to conclude that the percentage of financial aid recipients who volunteer is different from 12%.
The data suggest the population proportion is not significantly different from 12% at
α
= 0.01, so there is insufficient evidence to conclude that the percentage of financial aid recipients who volunteer is different from 12%.
The data suggest the population proportion is not significantly different from 12% at
α
= 0.01, so there is sufficient evidence to conclude that the percentage of financial aid recipients who volunteer is equal to 12%.
Answer:
Null Hypothesis:-H₀: P = 0.12
There is no difference between the percentage of volunteers selected from the college students.
Alternative Hypothesis:-H₁: P ≠ 0.12
There is a difference between the percentage of volunteers selected from the college students.
The calculated value Z = 0.5543 < 2.376 at 0.01 level of significance
The null hypothesis is accepted
There is a difference between the percentage of volunteers selected from the college students.
Step-by-step explanation:
Step(i):-
Given that the Population proportion P= 12% = 0.12
Given that the 331 randomly selected students who receive financial aid, 43 of them volunteered their time.
Sample proportion
[tex]p = \frac{x}{n} = \frac{43}{331} = 0.1299[/tex]
Step(ii):-
Null Hypothesis:-H₀: P = 0.12
There is a difference between the percentage of volunteers selected from the college students.
Alternative Hypothesis:-H₁: P ≠ 0.12
There is no difference between the percentage of volunteers selected from the college students.
Step(iii):-
Test statistic
[tex]Z = \frac{p-P }{\sqrt{\frac{PQ}{n } } }[/tex]
[tex]Z = \frac{0.1299-0.12 }{\sqrt{\frac{(0.12)(0.88)}{331 } } }[/tex]
Z = 0.5543
Level of significance = 0.01
Critical value Z₀.₀₁ = 2.376
Final answer:-
The calculated value Z = 0.5543 < 2.376 at 0.01 level of significance
The null hypothesis is accepted
There is a difference between the percentage of volunteers selected from the college students.
PLEASE HELP!!!!!!!!!!!!
Answer: Numbers of servings: 10 and 13, Liters of punch: 14
Step-by-step explanation:
Number of servings - 6 = Liters of punch.
List all the points that are on the same plane as point V
Please help me I’ll reward
Tyler's cell phone plan costs $350 to start, then there is a $50 charge each month. On the same grid as Han's
plan, graph the cost of Tyler's cell phone plan over a period of two years. (Go back to question 14 and add a line
to represent Tyler's plan.)
Describe how the two graphs are the same and how they are different.
Answer:
Tyler's cell phone plan will cost 1,550 over the period of two years.
Step-by-step explanation:
$50 * 24 months = 1,200
1,200 + 350 = 1,550
The graph for the given condition is attached below.
What is the equation?An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.
It is given that, Tyler's cell phone plan costs $350 to start, then there is a $50 charge each month.
Suppose the number of months is x and the total amount is y, The obtained equation for the given condition is,
y=350+50x
We have to graph the cost of Tyler's cell phone plan over a period of two years.
1 year = 12 month
2 year = 24 month
Suppose 24 as the place of x,
y=350+50x
y=350+50(24)
y=350+1200
y=1550
Thus, the graph for the given condition is attached below.
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Please hurry What is the measure of LABD? a:51° b:39° c:49° d: 141°
Answer: Angle ABD is 39°
Step-by-step explanation:
Angle CBA is 90° (given by "box" on the corner of the right triangle)
Angle CBD is given as 51°
Subtract:
90° - 51° = 39°
Factor the common factor out of each expression.
13) 50k + 20
14) 405-25
15) 5a + 10
16) 16k + 12
Answer:
Step-by-step explanation:
10(5k+2)
14) confused sorry
5(a+2)
4(k+3)
I WILL GIVE BRAINLIEST The toll on a bridge is $1.00 for cars and $2.50 for trucks. In one hour, a tollbooth operator collects a total of $105 in tolls.
Write an equation that represents the relationship between the number of cars, c, and the number of trucks, t, which could have passed by this tollbooth.
Answer:
The toll on a bridge is $1.00 \:for\: cars\: and\: $2.50 for trucks. In one hour, a tollbooth operator collects a total of $105 in tolls.
Equation :---
[tex]\boxed{c + 2.5t = 105}[/tex]
Above equation represents the relationship between the number of cars, c, and the number of trucks, t, which could have passed by this tollbooth.
TVs are described by the length of their diagonals. The diagonal of a TV is
always a WHOLE NUMBER. If Sarah's mom has a cabinet with an opening that
measures 20 inches by 15 inches in her kitchen, what is the largest TV she can fit
in the opening?
Answer:
32
Step-by-step explanation:
A downtown building is 720 feet tall. Maggie makes a scale model of the building at 1:240 of its actual size. How tall is the model?
Answer:
3 feet
Step-by-step explanation:
720ft
1ft:240ft
720/240=3
3ft:720ft
1 /2 (6k+10)+5k Simplify. Then, justify
Answer:
8k + 5
Step-by-step explanation:
First, you need to distribute the 1/2 to everything in the parentheses.
1/2 x 6k = 3k
1/2 x 10 = 5
The new expression is now:
3k + 5 + 5k
Add like terms.
3k + 5k = 8k
The expression becomes:
8k + 5
Each day martin lifts weights for 10 minutes and runs on the treadmill
Answer:
I can see ur question but I'm not getting it is there any answers I can chose from to work it out
what is the total if your tip is 20% and your subtotal is 7.47
Answer:
$8.96
Step-by-step explanation:
To find the total amount, multiply the percentage of the tip (20%) as 0.20 with 7.47
(7.47×0.20=1.494)
Add $1.49 to $7.47
(1.49+7.47=8.96)
And there is your total amount with a 20% tip!
$8.96
Two dice are rolled. Find the probability of getting a. A sum of 5, 6, or 7 b. Doubles or a sum of 6 or 8 c. A sum greater than 8 or less than 3 d. Based on the answers to parts a, b, and c, which is least likely to occur
Answer:
The answer is below
Step-by-step explanation:
The possible outcome from rolling two dice is:
1,1 1,2 1,3 1,4 1,5 1,6
2,1 2,2 2,3 2,4 2,5 2,6
3,1 3,2 3,3 3,4 3,5 3,6
4,1 4,2 4,3 4,4 4,5 4,6
5,1 5,2 5,3 5,4 5,5 5,6
6,1 6,2 6,3 6,4 6,5 6,6
The total number of outcomes = 36
a)
P(sum of 5) = 4/36, P(sum of 6) = 5/36, P(sum of 7) = 6/36
Hence:
P(sum of 5 or sum of 6, or sum of 7) = P(sum of 5) + P(sum of 6) + P(sum of 7) = 4/36 + 5/36 + 6/36
P(sum of 5, 6, or 7) = 15 / 36
b)
P(doubles) = 6/36, P(sum of 6) = 5/36, P(sum of 8) = 5/36
Hence:
P(doubles or sum of 6 or sum of 8) = P(doubles) + P(sum of 6) + P(sum of 8) = 6/36 + 5/36 + 5/36
P(doubles or sum of 6 or sum of 8) = 16 / 36
c)
P(sum greater than 8) = 10/36, P(sum lesser than 3) = 1/36
P(sum greater than 8 or less than 3) = P(sum greater than 8) + P(sum lesser than 3) = 10/36 + 1/36
P(sum greater than 8 or less than 3) = 11 / 36
Part c has the least probability of occurrence, hence c is least likely to occur.
1.
Which expression is equivalent to "the second power of (8 - 3)"?
O A 53
B. 83
c. 52
D. 2(8 - 3)
Answer:
[tex](8 - 3)^2 = 5^2[/tex]
Step-by-step explanation:
Given
[tex](8 - 3)[/tex]
Required
Determine the second power
The second power of an expression is the square of the expression.
So, the second power of [tex](8 - 3)[/tex] is
[tex](8 - 3)^2[/tex]
Solving further:
[tex](8 - 3)^2 = 5^2[/tex]
Hence:
Option (c) is correct
What is the value of x?
Answer:
x in all equations just normally means 1
Step-by-step explanation:
x is always 1
The square of the sum of
8 and 7 is
Answer:
225
Step-by-step explanation:
8+7=15
15*15=225
Answer:
225
Step-by-step explanation:
8 + 7 = 15
15² = 225
hope this helps...
I need help with this
Answer:
1. 121
2. 59
3. 48
4. 132
5. 17
6. 34
7. 23
8. 67
Step-by-step explanation:
just had this assignment and got a 100%, hope this helps!
Evaluate each expression.
24 : (-15 + 13-8-07- -6 x -5 - -10)
options
-2
22
10
8
paul makes 6 stacks of cans on a shelf in his kitchen he puts 2 cans in each stack which equation and answer show the total number of cans
Answer:
there are 12 cans
Step-by-step explanation:
6 x 2 =12
how far is the dog to the bird?
Answer:
96 feet squared
Step-by-step explanation:
to find the triangles area you would have to multiply 16 times 12 which would get you 192 then you would have to divide it by 2. Therefore the answer is 96.
I WILL GIVE BRAINLIEST Solve: 2(2x + 9) = 5x + 72
Step 1: 4x + 18 = 5x + 72
Step 2: 9x + 18 = 72
Step 3: 9x = 54
Step 4: x = 6
Which is the first incorrect step in the solution shown above?
Step 1
Step 2
Step 3
Step 4
Answer:
The first incorrect step would be the second, I think.
Step-by-step explanation:
You need to distribute:
2(2x+9) = 5x + 72
4x + 18 = 72
Then subtract 18 from both sides of the equation. Step 2 dosnt do this.
Next you simplify and get: 4x = 5x + 54
Subtract 5 from both sides of equation
Finally simplify and you get: -x = 54
Answer:
Solve: 2(2x + 9) = 5x + 72
Incorrect :---Step 1: 4x + 18 = 5x + 72
Step 2: 9x + 18 = 72
Step 3: 9x = 54
Step 4: x = 6
Correct :---Step 1: 4x + 18 = 5x + 72
Step 2: x + 72 = 18
Step 3: x = 18-72
Step 4: x = -54
Which is the first incorrect step in the solution shown above?
Step 1Step 2✓Step 3Step 4→First incorrect step in the solution shown above is Step 2.
3x + 4y = -23
2y - x = -19
What is the solution (x, y) to the system of equations above?
(-5, -2)
(3, -8)
(4, -6)
(9, -6)
Step-by-step explanation:
I belive is choice 2 cause I only got -19 with that one
I need help! I have an idea of which pick.
Answer: ok so I am bad at this but i would pick.....the top one
Step-by-step explanation:
4x + 20=? it’s hard and i’m confused
Answer:
4(x+5) I
Step-by-step explanation:
Answer:
[tex]x = -5[/tex]
Step-by-step explanation:
This is for if you are trying to solve for x. If that is not your goal, do not heed my words.
Subtract 20 from both sides.
[tex]4x + 20 = ?[/tex]
becomes
[tex]4x = -20[/tex]
Divide both sides by 4.
[tex]4x = -20[/tex]
becomes
[tex]x = -5[/tex]
And that's how you'd solve for x.
A certain comet near the sun moved through space at a rate of 701, 208 kilometers per hour. What is this number in word form?
Seven hundred one thousand, two hundred eight
Seven hundred ten thousand, twenty-eight
Seven hundred one thousand, twenty-eight
Seven hundred ten thousand, two hundred eight
701,208 is in word form is Seven hundred one thousand, two hundred eight
What is Number system?A number system is defined as a system of writing to express numbers.
Given that A certain comet near the sun moved through space at a rate of 701, 208 kilometers per hour
We need to write the number in sentence form
In the given number 8 is at units place
0 at tens place
2 is at hundred place
1 is at thousand place
0 is at ten thousand place
7 is at hundred thousand place
701, 208 is Seven hundred one thousand, two hundred eight
Hence, 701,208 is in word form is Seven hundred one thousand, two hundred eight
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A plane traveled 1232 miles each way to New York City and back. The trip there was with the wind. It took 11 hours.
The trip back was into the wind. The trip back took 22 hours. Find the speed of the plane in still air and the speed of the wind.
