Answer:
Answer: Choice C. \(x \approx 148.4\)
Step-by-step explanation:
Logarithmic Equations
Solve:
\(4\ln x-8=12\)
Adding 8:
\(4\ln x=20\)
Dividing by 4:
\(\ln x=5\)
Applying exponentials:
\(e^{\ln x}=e^{5}\)
Since the exponential and the natural log are inverse functions:
\(x=e^{5}\)
Calculating:
\(x \approx 148.4\)
Answer: Choice C. \(x \approx 148.4\)
Answer:148.4
Step-by-step explanation:
plato
An equilateral triangle was rotated to create this figure. What is true about the axis of rotation?
The true statement about the axis of rotation is the option;
It is parallel to a side of the equilateral triangle, but is separate from the equilateral triangle.
What is an axis of rotation?The axis of rotation is a straight line around which all points on a rotating body rotates.
The diagram shows a figure with a hollow cylindrical cross section and triangular cross section on the left and right, which indicates that the figure is created by the rotation of the equilateral triangle about height of the cylinder, such that the axis of rotation is a vertical line through the center of the hollow cylinder. Therefore, the axis of rotation is parallel to the height of the cylinder, and therefore, it is parallel to the base of the equilateral triangle, but it it seperate from walls of the cylinder, and therefore, separate from the equilateral triangle
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What is the surface area of each triangular prism?
the surface area of the above triangular prism is 156 square inches.
Step-by-step explanation:
multiply the sum of the triangle sides by the height of the prism and add the values together for the answer, remembering to include the correct unit of measurement.
Ms. Gadget car broke down on the turnpike. Acme town Ig charged $30 plus $3 per mile to tow the car. If ms. Gadget paid $162, how far was the car towed
X=91° and y=42° what is z?
Here, we just need to add x and y and subtract it from 180.
x + y = 91 + 42 = 133.
180 - 133 = 47.
Hence, z = 47 degrees.
Answer:
47°
Step-by-step explanation:
straight line = 180° we remove the angles x and y and find z
180 - 91 - 42 =
47°
ASAP! I will give you branilest
Elena wants to make a scale drawing of her bedroom. Her bedroom is a rectangle with length 500 cm and width 300 cm. She decides on a scale of 1 to 50.
b. Elena's bedroom door is 80 cm wide. How wide should the door be on the scale drawing? Explain your reasoning.
(*Hint #1* a good explanation uses Words, Numbers, or Pictures to justify your thinking).
Answer:
1.6cm
Step-by-step explanation:
80/50=1.6 cm
Good Luck!
What is the slope of the line that this relationship
Answer:
The slope of the line is 1/6.
Step-by-step explanation:
y=mx+b
0=m(0)+b
0=0+b
b=0
---------------
0.5=3m+b
0.5=3m+0
0.5=3m
1/2=3m
m=(1/2)/3
m=(1/2)(1/3)
m=1/6
Carlos needs an average of 90% or greater on his quiz scores to earn an A in science class for the quarter. Each quiz is worth 20 points. The scores of his first four quizzes are shown in the table. There is one more quiz this quarter. Quiz Score 1 2 3 4 18 at least 19 17 20 What is the mininum score Carlos can earn on the final quiz to earn at least a 90% average? points
Carlos needs to earn at least 16 points on the final quiz to earn at least a 90% average.
We have,
Let's start by finding the total number of points that Carlos can earn in the class:
Total points
= 5 quizzes x 20 points per quiz
= 100 points
If Carlos needs an average of 90% or greater, that means he needs to earn at least 90 points out of 100.
Total points earned.
= 18 + 19 + 17 + 20
= 74 points
To find the minimum score Carlos needs on the final quiz, we can set up an inequality:
(74 + x) / 5 ≥ 0.9
where x is the score on the final quiz.
Simplifying this inequality.
74 + x ≥ 90
x ≥ 16
Therefore,
Carlos needs to earn at least 16 points on the final quiz to earn at least a 90% average.
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Please can someone help me
Answer:
[A] $1500
[B] 1/4
[C] 375
Step-by-step explanation:
Given:
Priced at $1499.80
Sale for 25% off
Solve:
[A] Rounded MacBook Price:
$1499.80 → $1500
Hence, Rounded MacBook Price is $1500
[B] Estimated Discount Price:
25% ⇒ 25/100
Simplify
1/4
Hence, Estimated Discount Price: 1/4
[C] Estimated Sale Price AFTER DISCOUNT ( Do NOT include tax):
$1500 x 1/4 = 375
Hence, Estimated Sale Price after discount( not include tax) is 375.
[RevyBreeze]
R=
\({ \)
(x,y):y=
\( {x}^{2} \)
\(}\)
Step-by-step explanation:
Amongal medhanite motwal
Ryan has a bank account balance of −$17.62. As soon as he realizes this, he deposits $26.50 in the account.
What is Ryan's bank account balance after the deposit is made?
Enter your answer in the box.
$
Answer:
$466.93
Step-by-step explanation:
I multiplied by 26.50 & 17.62 and that got me $466.93. Or you can divide that into 17.62 = $1.50
The length of ribbons found at a seamstress are listed.
3, 11, 11, 13, 13, 21
What is the appropriate measure of variability for the data shown, and what is its value?
The mean is the best measure of variability and equals 11.
The median is the best measure of variability and equals 11.5.
The range is the best measure of variability and equals 18.
The IQR is the best measure of variability and equals 2.
Graph: y = -4x + 2
*Help needed
Answer:
The image below is the graph of y = -4x + 2
Hope this helps! :)
will give out brainliest, a THX, a friend request, and will rate ur answer
Answer:
E. 35/4
Step-by-step explanation:
Multiply denominator (4) to the whole number (8) then add to the numerator (3)
(8× 4 + 3)/ 4
(32 + 3)/4
35/4
A farm has 75 acres of wheat. The farmer can harvest the wheat from 12 acres per day. In how many days will all of the fields be harvested? Please write in y=mx+b
.
D=number of days12D=75D=75/12D=6.25ANSWER: It would take 6.25 days to harvest 75 acres.Step-by-step explanation:
Hope this helps youMark my answer as brainalistI keep getting the wrong answer.
The volume of the solid obtained by rotating the region bounded by the curve y = 1 - (x - 5)² in the first quadrant about the y-axis is 51π cubic units.
What is the volume of the solid obtained by rotating the region in the first quadrant bounded by the given curve about the y - axis?To find the volume of the solid obtained by rotating the region bounded by the curve y = 1 - (x - 5)² in the first quadrant about the y-axis, we can use the method of cylindrical shells.
The formula for the volume using cylindrical shells is:
V = 2π ∫ [a, b] x * h(x) dx
Where:
- V is the volume of the solid
- π represents the mathematical constant pi
- [a, b] is the interval over which we are integrating
- x is the variable representing the x-axis
- h(x) is the height of the cylindrical shell at a given x-value
In this case, we need to solve for x in terms of y to express the equation in terms of y.
Rearranging the given equation:
x = 5 ± √(1 - y)
Since we are only interested in the region in the first quadrant, we take the positive square root:
x = 5 + √(1 - y)
Now we can rewrite the volume formula with respect to y:
V = 2π ∫ [c, d] x * h(y) dy
Where:
- [c, d] is the interval of y-values that correspond to the region in the first quadrant
To determine the interval [c, d], we set the equation equal to zero and solve for y:
1 - (x - 5)² = 0
Expanding and rearranging the equation:
(x - 5)² = 1
x - 5 = ±√1
x = 5 ± 1
Since we are only interested in the region in the first quadrant, we take the value x = 6:
x = 6
Now we can evaluate the integral to find the volume:
V = 2π ∫ [0, 1] x * h(y) dy
Where h(y) represents the height of the cylindrical shell at a given y-value.
Integrating the expression:
V = 2π ∫ [0, 1] (5 + √(1 - y)) * h(y) dy
To find h(y), we need to determine the distance between the y-axis and the curve at a given y-value. Since the curve is symmetric, h(y) is simply the x-coordinate at that point:
h(y) = 5 + √(1 - y)
Substituting this expression back into the integral:
V = 2π ∫ [0, 1] (5 + √(1 - y)) * (5 + √(1 - y)) dy
Now, we can evaluate this integral to find the volume
V = 2π ∫ [0, 1] (5 + √(1 - y)) * (5 + √(1 - y)) dy
To simplify the integral, let's expand the expression:
V = 2π ∫ [0, 1] (25 + 10√(1 - y) + 1 - y) dy
V = 2π ∫ [0, 1] (26 + 10√(1 - y) - y) dy
Now, let's integrate term by term:
\(V = 2\pi [26y + 10/3 * (1 - y)^\frac{3}{2} - 1/2 * y^2]\)] evaluated from 0 to 1
V = \(2\pi [(26 + 10/3 * (1 - 1)^\frac{3}{2} - 1/2 * 1^2) - (26 * 0 + 10/3 * (1 - 0)^\frac{3}{2} - 1/2 * 0^2)]\)
V = 2π [(26 + 0 - 1/2) - (0 + 10/3 - 0)]
V = 2π (25.5)
V = 51π cubic units
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PLEASE HELP ASAP
solve -1/6[3-15(1/3)2]
Answer:
C) -2/9
Step-by-step explanation:
\(\displaystyle -\frac{1}{6}\biggr[3-15\biggr(\frac{1}{3}\biggr)^2\biggr]\\\\=-\frac{1}{6}\biggr[3-15\biggr(\frac{1}{9}\biggr)\biggr]\\\\=-\frac{1}{6}\biggr[3-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{27}{9}-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{12}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{4}{3}\biggr]\\\\=-\frac{4}{18}\\\\=-\frac{2}{9}\)
Answer:
Hence, Option (C) - 2/9 is the Answer:
Step-by-step explanation:
-1/6 [3 -15(1/3)^2]
-1/6(3 -15)(1/9))
-1/6(3 - 5/3)
-1/6 (4/3)
Hence, Option (C) - 2/9 is the Answer:
I hope it helps!
can someone help me on number 4
Answer:
\(P = 48 in\),\(A= 120in^2\)
Step-by-step explanation:
Again we can use Pythagorean theorem to find the missing side
x^2 + 15^2 = 17^2
x^2 + 225 = 289
Subtract 225 from both sides
x^2 = 64
Find the square root of both sides
√x^2 = √64
x = 8
So
l = 15in, w = 8in
P=2(15) + 2(8)
P = 30 + 18
P = 48 in
A= 15(8)
A= 120in^2
write the word sentence as an quotation:
the sum of the number k and 5 is 11
Answer:
k+5=11
Step-by-step explanation:
Answer:
k=6
Step-by-step explanation:
k+5=11 (this is an algebraic expression)
k=11-5 (you move 5 to the left)
k=6
Plsss help
I will give brainliest!
4 (3x+1)
Answer:
12x+4
Step-by-step explanation:
M A T H W A Y
Answer:
12x+1
Step-by-step explanation:
4(3x+1)
(4 x 3x)+1
12x+1
Need help will pay for everything with work shown. (ZELLE ONLY)
A) the angle ( 7π)/4 is in the third quadrant.
B) the reference angle is π/4 radians or 45°
C) sin(7π/4) = -√2/2
D) cos(7π/4) = - √2/2
What is the 3rd quadrant in math ?1) The 3rd quadrant is located in the graph's lower left-hand corner. It has negative values for both x and y. The fourth quarter is in the lower right-hand corner, with a positive x and a negative y value.
2) For the angle ( 7π) /4, the nearest multiple of 2π is 2π.
2π - (7 π ) /4 = (8π) / 4 - (7π)/4 = π/4
hence the reference angle is π/4 radians or 45 degrees.
3) The reference angle for (7π)/4 is π/4.
sin(7π/4) = - sin(π/4) = -1/√2
= -√2/2
cos(7π/4) = - cos(π/4) = -1/√2
=
- √2/2
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When you [_______________] measurements, the answer should only have the same number of significant figures as the measurement with the fewest significant figures
Answer:
When doing multiplication or division with measured values, the answer should have the same number of significant figures as the measured value with the least number of significant figures. Procedure to determine significant figures after multiplication or division: 1.
Step-by-step explanation:
The required solution is multiplication or division.
It is required to find the fill in blanks.
What is arithmetic?Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.
Given:
When doing multiplication or division with measured values, the answer should have the same number of significant figures as the measured value with the least number of significant figures.
Therefore, the required solution is multiplication or division.
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Which of the following is an equivalent representation of 2-3 ?
Answer:
2/3 = 2×4 / 3×4 = 8/12 which is an equivalent fraction of 2/3.
Step-by-step explanation
Similarly, if we divide the numerator and denominator of 12/18 by 6 we get. 12/18 = 12÷6 / 18÷6 = 2/3. So 12/18 is an equivalent fraction of 2/3 as well.
The ratio of the exterior and interior angle of a regular polygon is 2:3. Find the number of sides in the polygon.
Answer:
5 sides
Step-by-step explanation:
the sum of the interior angle and exterior angle = 180°
sum the parts of the ratio, 2 + 3 = 5 parts , then
180° ÷ 5 = 36° ← value of 1 part of the ratio
exterior angle = 2 × 36° = 72°
the sum of the exterior angles of a polygon = 360°
since the polygon is regular then the exterior angles are congruent , so
number of sides = 360° ÷ 72° = 5
In 2011 Staci invested $14,000 in a savings account for her newborn son. The account pays 3.4% interest each year. Determine the accrued value of the account in the year 2029, when her son will go to college. Round your answer the nearest cent.In the year 2029, the accrued value will be $
EXPLANATION
We need to use the Compounding Interest Equation as shown as follows:
\(A=P(1+\frac{r}{n})^{nt}\)Where P=Principal = 14,000 r=rate in decimal form = 3.4/100 = 0.034 n=number of times interest is compounded per unit 't' = 1 t= time = 2029 - 2011 = 18 years
Plugging in the terms into the expression:
\(A=14,000(1+\frac{0.034}{18})^{1\cdot18}\)Adding numbers:
\(A=14,000(\frac{9017}{9000})^{1\cdot18}\)Computing the power:
\(A=14,000(1.034)\)Multiplying numbers:
\(A=14,476\)In conclusion, in the year 2029 the value will be $14,476
Someone help me please and thank you
Answer: 2a < 2b
Step-by-step explanation:
We are given a statement:
a < b and b < c, then 2a ____ 2b
We can use simple numbers that make the statement true.
Where,
a = 2
b = 3
c = 4
Now lets plug it in.
2 < 3 and 3 < 4, then 2(2) ____ 2(3)
and lets simplify:
2 < 3 and 3 < 4, then 4 ____ 6
We can see that 4 is less than 6,
so as a is less than b, 2a is less than 2b.
The only thing changing is the coefficient being multiplied by the variables a and b.
\(3(b+3)-4(-2+b)=19\)
Answer: b=-2
Step-by-step explanation:
3(b+3)-4(-2+b)=19
3b+9+8-4b=19
-b+17=19
-b=19-17
-b=2
-b/-1=2/-1
b=-2
jshsmsnsksskjs landmarks sksnsn
Answer:
sknsonsknsknsknskdnksndksn?
can you help me with this it's synthetic substitution or direct substitution
\( \huge\boxed{\sf \green{ Given : }}\)
\( \red{\sf \: The \: Value \: Of \: x \: in \: 1st \: Eqn \: is \: 3 }\)\( \orange{ \sf \: The \: Value \: Of \: x \: in \: 1st \: Eqn \: is \: 2}\)
\(\red {\underline{ \sf \: Let's \: Solve \: For \: Eqn \: 1 : }}\)
\( \sf \: f(x) = {2x}^{3} - {5x}^{2} - x \)\( \sf \: f(3) = {2(3)}^{3} - {5(3)}^{2} - 3\)\( \sf \: f(3) = 2(27) - 5(6) - 3\)\( \sf \: f(3) = 54 - 30 - 3\)\( \sf \: f(3) = 24 - 3\)\( \red{ \sf \: f(3) = 21}\)_____________________________________
\(\orange {\underline{ \sf \: Let's \: Solve \: For \: Eqn \: 2}}\)
\( \sf \: f(x) = {4x}^{3} + 3x - 5\)\( \sf \: f(2) = - 4 {(2)}^{3} + 3(2) - 5\)\( \sf \: f(2) = - 4(8) + 6 - 5\)\( \sf \: f(2) = - 32 + 6 - 5\)\( \sf \: f(2) = - 26 - 5\)\( \orange{ \sf f(2) = - 31}\)____________________________
[Eqn 3]
f(x) = x³ + 3x² + 6x - 11 when x = 5
f(x) = x³ + 3x² + 6x - 11f(5) = (5)³ + 3*(5)²+6*(5)-11f(5) = 125 + 3*(25) + 30 - 11f(5) = 125 + 75 + 30 - 11f(5) = 200 + 30 - 11f(5) = 230 - 11f(5) = 219____________________________
[Eqn 4]
f(x)=x³ - x² + 12x - 15 when x = 1
f( x ) = x³ - x² + 12x - 15f( 1 ) = ( 1 )³ - ( 1 )² + 12( 1 ) - 15f( 1 ) = 1 - 1 + 12 - 15 f( 1 ) = 0 + 12 - 15f( 1 ) = -3____________________________
[Eqn 5]
f(x) = 2x³ + 6x² + 4x + 8 when x = 2
f( x ) = 2x³ + 6x² + 4x + 8f( 2 ) = 2( 2 )³ + 6( 2 )² + 4( 2 ) +8f( 2 ) = 2( 8 ) + 6( 4 ) + 8 + 8f( 2 ) = 16 + 24 + 16f( 2 ) = 40 + 16 f( 2 ) = 56\( \boxed{\sf \purple{ Hope \: It's \: Helpful!}}\)
Evaluating the polynomial using direct substitution method will give the following :
f(x) = 2x³ - 5x² - x when x = 3
f(3) = 6
f(x) = -4x³ + 3x - 5 when x = 2
f(2) = -31
Substitution
Substitution simply means to put in place of another. Therefore,
f(x) = 2x³ - 5x² - x when x = 3
f(3) = 2(3)³ - 5(3)² - 3
f(3) = 2(27) - 5(9) - 3
f(3) = 54 - 45 - 3
f(3) = 6
f(x) = -4x³ + 3x - 5 when x = 2
f(2) = -4(2)³ + 3(2) - 5
f(2) = -4(8) + 6 - 5
f(2) = -32 + 6 - 5
f(2) = -32 + 1
f(2) = -31
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A bag contains 2 red marbles, 5 blue marbles, and 3 yellow marbles. What is the theoretical probability of picking a blue marble?
A.
2/9
B.
1/2
C.
4/9
D.
1/9
B. 1/2
The blue marbles are half of the marbles that there are, so that makes it 1/2 which is also counted as 50%.
Hope that helped:)
Emma purchases a 20 ounce bottle of shampoo for 17$ What is the unit rate?
Answer:
1.176 ounces per dollar
Step-by-step explanation:
Quatre ouvriers mettent 12 jours pour réaliser un travail. Dans les mêmes conditions combien de temps mettraient six ouvriers pour réaliser ce travail ?