Answers
log a + log b = log a*b
Here you are adding two logs to the base 2, and your result will also be a log to the base 2.
log to the base 2 of 6 PLUS log to the base 2 of 7 results in:
"log to the base 2 of 6*7," or "log to the base 2 of 42."
Answer: The correct option is (C) [tex]\log_242.[/tex]
Step-by-step explanation: We are given to express the following logarithmic expression as a single logarithm :
[tex]E=\log_26+\log_27~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(I)[/tex]
We will be using the following logarithmic property :
[tex]\log_ab+\log_ac=\log_a(bc)[/tex]
So, from expression (i), we get
[tex]E=\log_26+\log_7=\log_2(6\times 7)=\log_242.[/tex]
Thus, the required single logarithm is [tex]\log_242.[/tex]
Option (C) is CORRECT.
Related Questions
ASAP helppppppppppp!!!!!
Answers
6+12+9
27 ft
What is the value stored at x, given the statements: int x; x = 3 / static_cast(4.5 + 6.4);?
Answers
The value stored at x will be 0.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ x = 3 / static_cast(4.5 + 6.4)
Now,
Since, The expression is,
⇒ x = 3 / static_cast(4.5 + 6.4)
Hence, The value of x is find as;
The operands 4.5 and 6.4 are added as;
⇒ 4.5 + 6.4 = 10.9
So, When this value is cast to int datatype, it becomes 10.
So, We get;
⇒ x = 3/10
= 0.3
Since, x in a variable of type int.
So, when a value of 0.3 is assigned to x, it is stored as 0.
Thus, The value stored at x = 0.
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(06.01)Which point on the scatter plot is an outlier?
Point H
Point I
Point J
Point K
Answers
Since Point I seems the only point away from the group of points, that would be the outlier.
Point I is the answer.
One of the UK lottery systems consists of selecting six numbers from forty-nine for a one-pound stake. The winning numbers are drawn at random and the order is not important. Determine the probability that a randomly selected set of six numbers will win the lottery.
4.167 × 10-6
8.63 × 10-7
5.467 × 10-6
7.15 × 10-8
Answers
The answers is D.)7.15 × 10-8
Answer:
7.15 × 10-8 0 or 7.15 * 10^-8
Step-by-step explanation:
(6!(49 - 6)!)/49!
720/10068347520
= 7.15 * 10^-8
I hope this answer gives you an idea of the process used to find the answer.
How many microliters are in a two liter bottle of soda?
Answers
so 2 liters = 2,000,000 microliters
HELP! Algebra!
The following two-way table shows the number of students of a school who have a cell phone and/or have a part-time job:
Based on the table, how many students have both a cell phone and a part-time job?
Answers:
A- 10
B- 40
C- 50
D- 100
Answers
The number of students have both a cell phone and a part-time job is 40.
The correct option is (B)
What is algebra?
Algebra is a branch of mathematics that deals with symbols or variables and uses arithmetic operations (+, –, ×, ÷) to find the unknown quantities represented by these variables.
Given table shows that,
The students having whether having cell phones or not and whether the students are having part time job or not.
As we can see from the Column I shows students having cellphones and the first row shows students having part time job. which is 40.
Hence, the students have both a cell phone and a part-time job is 40.
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I REALLY NEED YOUR HELP!!! PLEASE!!!!!
A store is selling two mixtures of nuts in 20-ounce bags. The first mixture has 15 ounces of peanuts combined with five ounces of cashews, and costs $4.25. The second mixture has five ounces of peanuts and 15 ounces of cashews, and costs $6.75. How much does one ounce of peanuts and one ounce of cashews cost?
Select one:
a. $0.40 for peanuts and $0.15 for cashews
b. $0.15 for peanuts and $0.40 for cashews
c. $0.12 for peanuts and $0.49 for cashews
d. There is no solution.
Answers
c=cost per ounce of cashews
first mix is
15p+5c=4.25
2nd is
5p+15c=6.75
slright
divide both equations by 5 to make it easier
3p+c=0.85
p+3c=1.35
alright, elmination
multiply first equation by -3 and add to 2nd to eliminate c's
-9p-3c=-2.55
p+3c=1.35 +
-8p+0c=-1.20
-8p=-1.20
divide both sides by -8
p=0.15
sub back
p+3c=1.35
0.15+3c=1.35
3c=1.20
c=0.40
$0.15 for peanuts and $0.40 for cashews
B is answer
The cost of one ounce of peanuts is $ 0.15 and the cost of one ounce of cashews is $ 0.40. Then the correct option is B.
What is the linear system?A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.
A store is selling two mixtures of nuts in 20-ounce bags.
The first mixture has 15 ounces of peanuts combined with five ounces of cashews and costs $4.25.
The second mixture has five ounces of peanuts and 15 ounces of cashews and costs $6.75.
Let the cost of one ounce of peanuts be x and one ounce of cashews cost be y. Then we have
15x + 5y = 4.25 ...1
5x + 15y = 6.75 ...2
By solving equations 1 and 2, Then we have
x = $ 0.15 and y = $ 0.40
Then the cost of one ounce of peanuts is $ 0.15 and the cost of one ounce of cashews is $ 0.40.
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find the area of one segment formed by a square with sides of 6 inches inscribed in a circle (hint: use the ratio of 1:1:square root of 2 to find the radius of the circle)
Answers
To find the area of a segment formed by a square inscribed in a circle, calculate the circle's radius from the square's diagonal, then find the circle's area and divide by 4. The area of one segment is approximately 14.14 square inches.
Explanation:Finding the Area of a Segment in an Inscribed Circle
To find the area of one segment formed by a square with sides of 6 inches inscribed in a circle, we first need to determine the radius of the circle. The given ratio of 1:1:square root of 2 is key here. In a right-angled triangle with sides of equal length (1:1), the hypotenuse will be the square root of 2, according to the Pythagorean theorem. Since the diagonal of the square is the diameter of the circle, and the square has sides of 6 inches, we can calculate the diameter (d) of the circle as:
d = 6 inches × square root of 2
Therefore, the radius (r) is half of that:
r = (6 inches × square root of 2) / 2 = 4.24 inches (approximately)
With the radius, we can calculate the area (A) of the circle:
A = πr² = 3.1415927… × (4.24 inches)²
A ≈ 56.55 square inches (to two significant figures)
Now, the area of one segment is the area of the circle divided by the number of segments, with this particular scenario having 4 equal segments:
Area of one segment = Total area / 4
Area of one segment ≈ 56.55 square inches / 4 = 14.14 square inches (approximately)
The area of one segment formed by the inscribed square in the circle is approximately 14.14 square inches.
The area of one segment of a circle formed by an inscribed square with sides of 6 inches is approximately 14.14 square inches, calculated by first finding the radius of the circle using the 1:1:√2 ratio and then using the area formula A = πr².
Explanation:To find the area of one segment formed by a square with sides of 6 inches inscribed in a circle, we first need to calculate the radius of the circle using the given ratio of 1:1:√2. In an inscribed square, the diagonal is equal to the diameter of the circle. The diagonal of the square can be found using the Pythagorean theorem (a² + b² = c²) where a and b are the sides of the square and c is the diagonal. In this case, the diagonal is √(6² + 6²) = √(36 + 36) = √72 = 6√2 inches, which is also the diameter of the circle.
Thus, the radius (r) of the circle is half of the diameter, r = 6√2 / 2 = 3√2 inches. Now we can compute the area (A) of the circle using the formula A = πr². Plugging our radius into this formula gives us A = π(3√2)² = π(18) ≈ 56.55 square inches.
The circle is divided into four equal segments by the square, so the area of one segment is one-fourth of the total area of the circle. Therefore, the area of one segment is approximately 56.55 / 4 = 14.14 square inches.
You invest a total of $5800 in two investments earning 3.5% and 5.5% simple interest. Your goal is to have a total annual interest income of $283. Write a system of linear equations that represents this situation where x represents the amount invested in the 3.5% fund and y represents the amount invested in the 5.5% fund. Solve this system to determine the smallest amount that you can invest at 5.5% in order to meet your objective.
Answers
I = P x (i)
where I is interest, P is the principal amount, and i is the decimal equivalent of the interest.
Let x be the amount deposited with 3.5% interest. With this representation, the amount deposited with 5.5% is 5800 - x.
The linear equation that would represent the given scenario is,
x(0.035) + (5800 - x)(0.055) = 283
Simplifying the equation,
0.035x + 319 - 0.055x = 283
Combining like terms,
-0.02x = -36
Dividing by -0.02,
x = 1800
$5800 - x = $5800 - $1800 = y
y = $4000
Hence, the value that should be deposited to the 5.5% is $40000.
Evaluate the following expression.
153^0
0
1
153
Answers
[tex]153^0 = 1[/tex]
Answer:
The answer is B = 1
Step-by-step explanation:
The exponent zero rule states that any number raised to the power of zero equals to 1 or mathematically:
x^0 = 1 for any real number x
So applying this rule
153^0 = 1 with x =153
Write logbx + logby - logbz as a single logarithm.
Answers
=logb(x*y)/z if b is the base of log.
There are two properties that you can apply to get the correct answer.
logb(x*y)=logbx+logby if b is the base of log.
logb(x/y)=logbx-logby if b is the base of log, so the correct answer for logbx+logby-logbz=logb(x*y)/z. Hope it help!
A plane has 360 total seats, which are divided into economy class and business class. For every 13 seats in economy class, there are 5 seats in business class.
Answers
13 +5 =18
360/18=20
13*20 = 260
5*20 =100
260 economy & 100 business
Do as follows:
13 +5 =18
360/18=20
13*20 = 260
5*20 =100
260 economy & 100 business
In your lab, a substance's temperature has been observed to follow the function T(x) = (x + 5)3 + 7. The turning point of the graph is where the substance changes from a liquid to a solid. Explain to your fellow scientists how to find the turning point of this function?
Answers
t(x)=(x+5)^3+7
dt/dx=3(x+5)^2
d2t/dx2=6(x-5)
dt/dx=0 only when x=-5
However, since d2t/dx2(-5)=0, this point is an inflection point, not a turning point.
So there is no turning point for this function.
Now in this problem, it is even easier than the above to show that there is no turning point. A turning point by definition is when the derivative or velocity changes sign. Since in this case v=3(x+5)^2, for any value of x, v≥0, and thus never becomes negative, so it never changes from a positive to negative velocity because velocity in this instance is a squared function.
A couple has 2 children. what is the probability that both are girls if the older of the two is a girl?
Answers
This question comes from the 'boy or girl paradox', a.k.a. the Mrs Smith Problem.
what rotation will map the figure onto itself?
Answers
The correct answer is 180° about the center.
To map the given figure onto itself, we need to find the rotational symmetry. Let’s analyze the “X” shape:
A 90° rotation would not work because it would overlap the arms of the “X.”
Similarly, a 270° rotation would also result in overlapping arms.
A 45° rotation would not preserve the original shape due to the asymmetry of the “X.”
However, a 180° rotation about its center will bring each arm of the “X” back to a position occupied by another arm, effectively mapping it onto itself. An “X” has rotational symmetry at 180°; every half turn gives us an identical view.
The correct answer is 180° about the center. This specific degree of rotation is required due to the symmetrical nature of an “X” shape where each arm aligns with another after being rotated by this angle.
Which expression can be used to determine the average rate of change in f(x) over the interval [2,9]
a) f(9-2)
b) f(9)-f(2)
c) f(9-2)/9-2
c) f(9)-f(2)/9-2
Answers
f(9)-f(2)/9-2
Answer:
D. f(9-2)/9-2 on Edg2020
Step-by-step explanation:
Hope this helps!!! Have a great day!!! : )
Calculate the upper and lower limit for a 95% confidence interval about this mean.
A family needs a new car, but isn't sure they can fit the payment into their budget. A sample of 36 months of grocery bills yields a mean of $94 with a standard deviation of $10. If the upper limit of a 95% confidence level is below $100, the family can afford to buy the car.
Standard error = (standard deviation)/(square root of sample size)
Upper limit (dollars and cents)
Lower limit (dollars and cents)
Answers
We also have the number of samples, n = 36 and the confidence level, α = 95%
The formula for confidence interval is given
μ + z* (σ/√n) and μ - z* (σ/√n)
Where z* is the z-values for the confidence level
z* for 95% level of confidence is 1.96
Substitute this into the formula, we have
Upper limit ⇒ 94+(1.96)(10÷√36) = 94+(1.96)(10/6) = $97.27
Lower limit ⇒ 94 - (1.96)(10÷√36) = 94 - (1.96)(10/6) = $90.73
Answer:Upper limit ⇒ 94+(1.96)(10÷√36) = 94+(1.96)(10/6) = $97.27
Lower limit ⇒ 94 - (1.96)(10÷√36) = 94 - (1.96)(10/6) = $90.73
three consecutive even numbers have a sum where one half of the sum is between 84 and 96
Answers
86 *2 = 172
172/3 = 57.33
54 + 56 +58 =168
168/2 =84
56 + 58 +60 = 174
174/2 =87
58 +60 +62 = 180
180/2 = 90
60 +62 +64 = 186
186/2 = 93
62 +64+66 = 192
192/2 = 96
there are 3 sets of numbers that fall between 84 & 96
1 set equals 84 and 1 set equals 96
so if you are counting those there are 5 sets
If x and y are both negative when is x-y positive
Answers
let's try some numbers
we have 3 scenarios
x>y
x=y
x<y
x>y
x=-1 and y=-2
x-y=-1-(-2)=-1+2=1
it's positive when x>y
x=y
x=-1, y=-1
-1-(-1)=-1+1=0
nope
x<y
x=-2 and y=-1
-2-(-1)=-2+1=-1
nope
x-y is positive when 0>x>y
how many cookies will tony have if he bakes 5 more batches y=90+ 14 (x)
Answers
replace x with 5
y=90+14(5)
14*5 =70
90+70 =160
y=160
he will have 160 cookies
Answer:
Given the equation:
[tex]y = 90+14x[/tex] .....[1]
where,
y represents the total number of cookies and
x represents the number of batches bake.
From the statement:
we have;
x = 5
Substitute in [1] we have;
[tex]y = 90+14 \cdot 5 = 90+70 = 160[/tex]
Therefore, 160 cookies will tony have if he bakes 5 more batches
What is the sum of the two vectors (2,-1) and (3,3)?
Answers
We simply add up the corresponding coordinates. The x coordinates of the two vectors are 2 and 3. They add to 2+3 = 5
The y coordinates are -1 and 3. They add to -1+3 = 2
So overall,
(2,-1) + (3,3) = (2+3, -1+3) = (5,2)
is the answer
Carlos graphs the equations y = 0.5x^2 + 3 and y = –4x^2 + 24x – 35 and generates the graph below. Which conclusion is supported by the graph?
A. The equation 0.5x2 + 3 = –4x2 + 24x – 35 has no solutions.
B. The equation 0.5x2 + 3 = –4x2 + 24x – 35 has one solution.
C. The equation 0.5x2 + 3 = –4x2 + 24x – 35 has two solutions.
D. The equation 0.5x2 + 3 = –4x2 + 24x – 35 has three solutions.
Answers
Answer: The correct option is A. The equation 0.5x2 + 3 = –4x2 + 24x – 35 has no solutions.
Explanation:
The given equations are,
[tex]y=0.5x^2+3[/tex]
[tex]y=-4x^2+24x-35[/tex]
Since the above equations are quadratic equations, therefore they area parabola.
The coefficient of first equation is a positive therefore it is an upward parabola. The coefficient of second equation is a negative therefore it is an downward parabola.
From given figure it is noticed that the vertex of first parabola is (0,3) and the vertex of second parabola is (3,1).
The vertex is the extreme point of the parabola. So for first equation [tex]y\geq 3[/tex] and for second equation [tex]y\leq 1[/tex]. Therefore the parabolas will never intersect each other.
Since there is no intersection between parabolas therefore the equation
[tex]0.5x^2+3=-4x^2+24x-35[/tex] has no solution and the correct option is A.
Sammy borrowed $10,000 to purchase a new car at an annual interest rate of 11%. She is to pay it back in equal monthly payments over a 5-year period. How much total interest will be paid over the period of the loan? Round to the nearest dollar.
Answers
Use the formula of the present value of an annuity ordinary which is
Pv=pmt [(1-(1+r/k)^(-kn))÷(r/k)]
Pv present value 10000
PMT monthly payment?
R interest rate 0.11
K compounded monthly 12 because the payments to repay the loan are monthly
N time 5years
Solve the formula for PMT
PMT=pv÷[(1-(1+r/k)^(-kn))÷(r/k)]
PMT=10,000÷((1−(1+0.11÷12)^(
−12×5))÷(0.11÷12))
=217.42 per month
After that find total paid amount
5years=60 months
Total paid=217.42×60=13,045.2
Total interest
13,045.2−10,000=3,045.2. Answer
whats the answer to this?
Answers
14/112 =0.125
2600*0.125 = 325
c) 325
A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during the rotation?
Answers
The diameter of a circle is 8 centimeters. a central angle of the circle of the circle intercepts an arc of 12 centimeters. what is the radian measure of the angle?
Answers
The radian measure of the angle is 1.5 radians.
Explanation:To find the radian measure of the angle, we need to determine the length of the arc intercepted by the angle. We know that the diameter of the circle is 8 centimeters, so the radius is half of that, which is 4 centimeters. The circumference of the circle is given by the formula C = 2πr, where r is the radius.
In this case, the arc length intercepted by the angle is 12 centimeters. We can use the formula for the circumference to find the radian measure of the angle.
C = 2πr
12 = 2π(4)
12 = 8π
Dividing both sides of the equation by 8, we get:
π = 1.5 radians
What is the slope of any parallel line to the line 8x + 9y = 3 in the standard (x,y) coordinate plane?
Answers
ax + by = c
is given by:
-a/b
Moreover, whenever two lines are parallel, they have the same slope. So, if any line is to be parallel to the given line, it must have the same slope as this line, which is:
-(8)/(9)
-8/9
Point P has coordinates (1, –3). Point W is symmetric to point P with respect to the line y = –x. What are the coordinates of point W?
(3,0)
(3, –1)
(3, –3)
(–3, 1)
Answers
help will mark brainliest
Answers
(0-6)/(2-0)
-6/2
-3
Then find the y intercept (the value of y when x=0)
6
Plug both numbers into slope intercept form
y=-3x+6
Add an inequality symbol. It should me more than because the line is dashed and it is shaded above.
Final answer: y>-3x+6
David drives 210 miles a week for work. He fills his petrol tank twice a week. Each fill up is for 42 litres. Assuming he uses all of the petrol each week and only uses the car to travel to and from work, what is the mileage per litre of his car?
Answers
He fills his petrol tank twice a week. Each fill up is for 42 litres
That means he fill the tank 2x42litre= 84 litres/week.
The mileage should be : (210miles/week)/ (84 litres/week)= 2,5miles/litre
Answer: 2,5miles/litre