Answer:
x=-1
Isolate the variable by dividing each side by factors that dont
contain the variable
Select all the expressions that are equivalent to (12 + x)10.5.
It’s multiple choice and these are the answers
10.5(12x)
(10.5 + 12 + x)
10.5(12 + x)
126x
126 + 10.5x
22.5 + x
Question
A card is drawn from a standard deck of 52 cards and then placed back into the deck. Find the probability that a red card is
drawn at least once by the third draw. Round your answer to two decimal places.
Provide your answer below:
The probability that a red card is drawn at least once by the third draw is 0.88.
What is probability?
The area of mathematics known as probability deals with numerical descriptions of how likely it is for an event to happen or for a claim to be true. A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.
Let, a card is drawn from a standard deck of 52 cards and then placed back into the deck.
In a standard 52 card deck the red cards are 26.
So,
P(red) = n(red cards) / n(total cards)
= 26 / 52
P(red) = 0.50
Now, X ≈ Bin (n = 3, P = 0.50)
P(X = x) = (n x) p^x (1 - p)^n-x
(n x) = \(\frac{n!}{x!(n-x)!}\)
P(X ≥ 1) = 1 - P(X < 1)
= 1 - P(X = 0)
= 1- (3 0)(0.5)^0(0.5)^3
= 1 - 0.125
= 0.875
P(X ≥ 1) = 0.88
Hence, the probability that a red card is drawn at least once by the third draw is 0.88.
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10 points
The diagram below shows the design of a house roof. Each side of the
roof is 24 feet long, as shown. What is the width (w) of the house?
(approximate to 2 decimal places only)
24 ft
24 ft
w
Answer:
w = 33.94 ft
Step-by-step explanation:the roof takes the shape of a right angle. The top of the roof is a right angle. To find the width of the house, which is the hypotenuse of the triangular roof, we would apply pythagorean theorem.
Thus:
\( w^2 = 24^2 + 24^2 \)
\( w^2 = 1,152 \)
Square both sides
\( \sqrt{w^2} = \sqrt{1,152} \)
\( w = 33.94 \) (to 2 decimal places)
The width of the house = 33.94 ft
The width of the house as shown is 33.94 feet.
What is Pythagoras theorem?Pythagoras theorem is used to show the relationship between the sides of a right angled triangle. It is given by:
The square of the hypotenuse (longest side) = sum of the square of the two other legs
From the diagram:
w² = 24² + 24²
Hence:
w = 33.94 ft.
The width of the house as shown is 33.94 feet.
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Work out the value of d in the equality below. 0.0043 = 4.3 × 10d
Answer:
d= -3
Step-by-step explanation:
Rearrange variables to the left side of the equation: -4.3x 10d= -0.0043
Divide both sides of the equation by the coefficient of variable
Reduce the fraction
Convert fraction into negative exponential form
Convert both sides of the equation into terms with the same with same base
Simplify using exponent power rule
Based on the given conditions, corresponding exponents are equal
Please help.
You will get brainliest.
Answer:
a
Step-by-step explanation:
Many bank accounts never go below zero. But some banks will allow a negative balance, at least for a short time, called an overdraft. It means someone has taken out, or 'drafted', more money than was in the account to begin with. Chloe's account went into overdraft. To get back to a positive balance, she deposited money at steady rate of $30.84 per week. After 3 weeks, she had $44.21 in the account. What was the balance when the account went into overdraft?
When the overdraft occurred, the balance was -48.31.
What happens if a bank account balance falls to zero?Major Takeaways. When your account balance drops below zero, you have an overdraft. If you have overdraft protection, your bank may permit a negative balance on your account or may provide one-time exceptions, but they may charge you for each transaction. Bank clients are required by federal regulations to choose to participate in overdraft protection schemes.
Let x represent the balance at the time the account entered overdraft.
He consistently made deposits totaling $30.84 a week in order to return to a positive balance.
Amount deposited per week = $30.84
Amount deposited 3 weeks = 30.84 × 3 = 92.52
Now amount in account after 3 weeks =x+ 92.52
We are given that After 3 weeks, he had $44.21 in the account.
So,x+92.52=44.21
x=44.21-92.52
x=-48.31
Hence The balance when the account went into overdraft was -48.31
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For her party can Nina fill fewer than 10 bags with treats between 10 and 20 bags between 20 and 30 bags or more than 30 bags explain
The correct option regarding the number of bags filled by Nina, using proportions, is given as follows:
Between 20 and 30 bags.
What is a proportion?A proportion is a fraction of an amount, and this fraction is combined with the unit rates of the problem and basic arithmetic operations, especially multiplication and division, to find the desired amounts in the context of the problem.
In this problem, a proportion is applied to find the number of bags filled by Nina, which is given by the division presented as follows:
Number of bags = Number of treats / Treats per bag.
The values of these parameters are given as follows:
Number of treats: 78.Number of treats per bag: 3.Hence the numeric value of the expression is:
Number of bags = 78/3 = 26.
Which is a number between 20 and 30.
Missing InformationThe problem states that Nina had 78 treats, and each bag has 3 treats, then it asks the correct option regarding the number of bags.
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Using the following conversions between the metric and U.S. systems, convert the measurement.
Round your answer to 6 decimal places as needed.
1 meter= 3.28 feet
1 Liter= 0.26 gallons
1 kilogram = 2.20 pounds
26.794 yd = _________km.
By sing the following conversions between metric and US systems 26.794 yard = 0.024500 .
What is the value of 1meter in terms of centimeter ?
1 meter can be equal to 100 centimeters and suppose for x meters , then it could be around 100x centimeters .
Given,
1 meter= 3.28 feet
1 Liter= 0.26 gallons
1 kilogram = 2.20 pounds
we know that ,
1yard = 0.0009144 km
so ,
26.794 yard = 26.794*0.0009144 km
= 0.024500
Hence by sing the following conversions between metric and US systems 26.794 yard = 0.024500 .
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Please help me it due today at 7:10pm please help me
Answer:
that is easy false hope u get it to By 7:10
identify the x-values for which f(x)>-2
It should be noted that the expression that can be used to identify the x-values for which f(x)>-2 will be -2 <= x <= 2. This is illustrated in the graph.
How to explain the information?It should be noted that a graph is a diagram that is used to show the relationship that exists between the data presented or the information.
In this case, ut should be noted that the expression that can be used to identify the x-values for which f(x)>-2 will be -2 <= x <= 2. This is illustrated in the graph.
The graph is attached below.
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Simplify
cos(x)/sin(x)•csc(x)
Answer:
cos(x)
Step-by-step explanation:
\(Remember: sin(x) = \frac{1}{csc(x)}\)
\(\frac{cos(x)}{sin(x) *csc(x)}\) OG Question
\(\frac{cos(x)}{\frac{1}{csc(x)} *\frac{csc(x)}{1} }\) Convert \(sin(x) = \frac{1}{csc(x)}\)
\(\frac{cos(x)}{1 }\) Cross multiply and cancel out. Equals to one.
\(cos(x)\) Anything divided by 1 is itself. You have your answer.
Hope this makes sense. Lmk if you need more help.
what is the equation of the line shown in the graph? -2,3 and 3,-3
Answer:
y + 3 = 0
Step-by-step explanation:
Since, line is intersecting y axis at y = - 3
So y + 3 = 0 is the required equation of the line.
Can someone help me
The scale factor that was used to convert triangle ABC into the image in A ' B ' C ' is 1 / 2.
How to find the scale factor ?To find the scale factor, you need to find the length of a side of triangle ABC and then the length of the corresponding side in A ' B ' C '.
The side length we will pick is AB which is:
= 6 - 2
= 4 units
The side length of the other triangle is A' B' :
= 3 - 1
= 2 units
The scale factor is:
= 2 / 4
= 1 / 2
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Arayanna is making a batch of brownies that feeds 4 people. How many batches of the recipe does she need to make to feed
37 people ?
Answer:
Arayanna needs 10 batches of brownies to feed 37 people.
Step-by-step explanation:
Answer:
so basically you divide 37 by four because there are 37 people and a pack of brownies makes 4
Step-by-step explanation:
s0 you would need 10 batches because if you make nine 9 times 4 is only 36 so there is 37 people who would like a brownie
which of the following is a function
Answer: the second one
Answer:
B
Step-by-step explanation:
because it's the only one that passes the vertical line test.
need help with this ASAP
!!!!!!!!!!!!!!!!!!!!!!!!
The fence in dead center is about 399 feet from the third base.
What is the Pythagorean Theorem?The Pythagorean Theorem states that in the case of a right triangle, the square of the length of the hypotenuse, which is the longest side, is equals to the sum of the squares of the lengths of the other two sides.
Hence the equation for the theorem is given as follows:
c² = a² + b².
In which:
c > a and c > b is the length of the hypotenuse.a and b are the lengths of the other two sides (the legs) of the right-angled triangle.For the triangle in this problem, we have that:
The sides are d ft and 90 ft.The hypotenuse is of 409 ft.Hence the distance is obtained as follows:
d² + 90² = 409²
\(d = \sqrt{409^2 - 90^2}\)
d = 399 ft.
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Identify the additive inverse and multiplicative inverse for the following number.
−3/4
Answer:
3/4 and - 4/3Step-by-step explanation:
Additive inverse ⇒ sum of numbers is zero:
-3/4 + x = 0x = 0 - (-3/4) = 3/4Multiplicative inverse ⇒ product of numbers is 1:
-3/4 * x = 1x = 1 ÷ (-3/4) = 1* ( - 4/3) = -4/3Step-by-step explanation:
the additive inverse and multiplicative inverse for the following number -3/4=-4/3
The temperature outside dropped 13 degress in 7 hours. The final temperature was -2 degrees. What was the starting temperature
Answer:
11 degrees
Step-by-step explanation:
13-2=11.
The figure below has a volume of 60 cubic units. How many more cubes will it take to fill the figure?
Answer:
55
Step-by-step explanation:
Answer:
55 cubic units
Step-by-step explanation:
you subtract 60 and the amount of cubes there are (5)
60-5=55
The radius of a cone is 2.5 units. The volume of the cone is 19 cubic units
The formula for the volume of a cone is given by the following equation:
V = 1/3 * π * r2 * h
where V is the volume of the cone, r is the radius of the cone, and h is the height of the cone.
In this case, we are given that the radius of the cone is 2.5 units and the volume of the cone is 19 cubic units. We can use this information to complete the expression that represents the height of the cone as follows:
V = 1/3 * π * r2 * h
19 cubic units = 1/3 * π * 2.5 units2 * h
19 cubic units = 1/3 * π * 6.25 units2 * h
19 cubic units = 1/3 * 19.63 units2 * h
19 cubic units = 6.54 units2 * h
h = 19 cubic units / 6.54 units2
h = 2.9 cubic units / 6.54 units
Therefore, the expression that represents the height of the cone is 2.9 cubic units / 6.54 units.
Please help I have another question with the same criteria
X|1 2 3 4 5 6
Y|9 13 25 27 31 46
If you get a negative number under the radical when completing the square, it simply means that you will get a negative answer.
Answer
False.
Explanation
The radical is usually a square root and it is clear that the square root of
A. Write an inequality for which 3, -4, 0, and 2,300 are solutions B. How many total solutions are there to your equality?
Answer:
-4 ≤ x ≤ 2,300
If x is a real number, we have infinite solutions.
if x is an integer number, we have 2,305 solutions.
Step-by-step explanation:
We want to write an inequality such that the numbers:
3, -4, 0, and 2,300 are solutions.
If we order these numbers from smallest to largest, we get:
{-4, 0, 3, 2,300}
Then we can write an inequality like:
-4 ≤ x ≤ 2,300
You can see that the four values in the set {-4, 0, 3, 2,300} are solutions for our inequality.
Now, how many solutions does this inequality has?
if x is a real number, then we have infinite solutions.
if x is an integer, then the total number of solutions will be equal to:
number of negative solutions (4)
number of positive solutions (2,300)
the number zero (1)
Then we would have: 4 + 2,300 + 1 = 2,305 integer solutions.
Then the inequality solution will be -4 ≤ x ≤ 2,300. If x is a real number, we have infinite solutions. if x is an integer number, we have 2,305 solutions.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
A. Write an inequality for which 3, -4, 0, and 2,300 are solutions that will be
If we order these numbers from smallest to largest, we get:
{-4, 0, 3, 2,300}
Then we can write an inequality like:
-4 ≤ x ≤ 2,300
You can see that the four values in the set {-4, 0, 3, 2,300} are solutions for our inequality.
B. The number of the solution to the inequality will be
We have limitless solutions if x is a real number.
If x is an integer, the set of possible solutions will be
The number of negative solutions (4)
The number of positive solutions (2,300)
The number zero (1)
Then we would have: 4 + 2,300 + 1 = 2,305 integer solutions.
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Hector invests $20,000 at age 21. He hopes the investment will be worth $200,000 when he turns 40. If the interest compounds continuously, approximately what rate of growth will he need to achieve his goal? Round to the nearest tenth of a percent.
Answer:
12.12%
Step-by-step explanation:
We have that the formula is given by:
A = p * e ^ (r * t)
From here, we know that A = 200000; p = 20000 and the time we can calculate 40 - 21 = 19
if we replace we have:
200000 = 20000 * e ^ (19 * r)
we must calculate r:
e ^ (19 * r) = 200000/20000
e ^ (19 * r) = 10
19 * r = ln 10
r = ln 10/19
r = 0.1212
In other words, the rate of growth is 12.12%
Answer:
12.1%
Step-by-step explanation:
2 pounds 6 ounces = ounces
2 pounds 6 ounces in ounces is equivalent to 38 ounces.
The given measurement is -
2 pounds 6 ounces
In 1 pound, there are 16 ounces.
So, we can write that -
2 pounds 6 ounces = 2 x 16 + 6
2 pounds 6 ounces = 38 ounces
So, 2 pounds 6 ounces in ounces is equivalent to 38 ounces.
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A one-way trolley ticket to Old Town costs 3.50. How much will it cost for Ahyeon and three friends to ride to Old Town and home again?
Answer:
$28
Step-by-step explanation:
Each round trip will be double the price of a one-way trip, so will be ...
2 × $3.50 = $7.00
Diego and his 3 friends will require a total of 4 round-trip tickets for a cost of ...
4 × $7.00 = $28.00
Solve (x+1)2 =13/4 using the square root property
Answer:
Starting with the equation:
(x + 1)^2 = 13/4
We can use the square root property, which states that if a^2 = b, then a is equal to the positive or negative square root of b.
Taking the square root of both sides, we get:
x + 1 = ±√(13/4)
Simplifying under the radical:
x + 1 = ±(√13)/2
Now we can solve for x by subtracting 1 from both sides:
x = -1 ± (√13)/2
Therefore, the solutions to the equation are:
x = -1 + (√13)/2 or x = -1 - (√13)/2
Step-by-step explanation:
How do the joint frequencies differ from the marginal frequencies in a two-way frequency table? (1 point)
The joint frequencies are the sum of the row or column in a two-way frequency table. The marginal frequencies are the sum of the
row and column totals.
The joint frequencies are the sum of the row and column totals. The marginal frequencies are the sum of the row or column in a
two-way frequency table.
The joint frequencies are the cells where the categories for two variables in a two-way frequency table intersect. The marginal
frequencies are the sum of the row or column in a two-way frequency table.
The joint frequencies are the sum of the row or column in a two-way frequency table. The marginal frequencies are the cells where
the categories for two variables in a two-way frequency table intersect.
The joint frequencies are the cells where the categories for two variables in a two-way frequency table intersect, while the marginal frequencies are the sums of the row or column in a two-way frequency table.
Identifying the difference between the frequenciesJoint frequencies represent the frequency counts of each combination of categories for two variables, while marginal frequencies represent the frequency counts of each category for one variable, regardless of the other variable.
For example, in a two-way frequency table of gender and political affiliation, the joint frequency for "Male" and "Republican" would represent the number of individuals who are both male and Republican.
The marginal frequency for "Male" would represent the total number of males in the sample, regardless of their political affiliation. The marginal frequency for "Republican" would represent the total number of individuals who identify as Republican, regardless of their gender.
Understanding the difference between joint and marginal frequencies is important for analyzing the relationship between two variables and identifying any patterns or trends.
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PLEASE HELPPP!:( i’ll mark brainlest to whoever is right!
Find Y
|−10+5y| = 55
Answer:
Isolate for each variable by subbing in
0
for the other. In this case, we get
(
−
10
3
,
0
)
as the
x
-intercept, and
(
0
,
2
)
as the
y
-intercept.
Step-by-step explanation:
Answer:
Y = 60
Hope This Helped!