Answer:
The answer is 50.
Step-by-step explanation:
Use MDAS
Multiplication, Division, Addition and Subtraction
2 + 6 * 8 =
Multiply first then add
2 + 6*8 = ?
= 2 + 48
= 50
Which of the following is the equation of the function f(x) graphed above? A. ƒ(x) = x(x − 2)²(x − 1)(x + 1) B. f(x) = (x - 2) (x − 1)(x + 1) c. f(x)= x(x - 2)²(x − 1)(x + 1) + 1)² D. f(x) = (x - 2)²(x - 1)(x - 1)^ E
Will give Brainliest. Amoli and Ella are converting measurements between inches and feet. Amoli says that the constant of proportionality is 12. Ella says it is 1/12. Who do you agree with? Explain your thinking.
The gas tank in Sharon’s car can hold up to 16.5 gal of gas.
About how many liters of gas can the tank hold?
1 L≈1.06 qt
A:3.9L
B:4.4L
C:62.3L
D:70.0L
Answer:
B 4.4
Step-by-step explanation:
There is 1 gallon in 3.7 liters so you would divide 16.5 by 3.7
The tank has a capacity of 58.90 liters of gas.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
The operator that performs the arithmetic operation is called the arithmetic operator.
Operators which let do a basic mathematical calculations.
+ Addition operation: Adds values on either side of the operator.
For example 4 + 2 = 6
- Subtraction operation: Subtracts right-hand operand from the left-hand operand.
for example 4 -2 = 2
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
Given that the gas tank in Sharon’s car can hold up to 16.5 gal of gas
Since one gallon is 4 quarts
Volume in quarts as:
16.5 gallons = 16.5 x 4 quarts = 66 quarts
So quarts = 0.946
66 quarts = 0.946 x 66 = 62.436
So Volume = 62.436q
Volume in liters as:
Given as one litre = 1.06qt
If one liter is 1.06, Then 62.436 will be = 62.436/1.06 = 58.90
The volume in liters of 58.90
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Explain the process you would use to find the area of the shaded region. Then calculate the shaded region.
You may leave your answer in terms of π or round to the nearest tenth.
The shaded region of the rectangle is 242.9 cm² and the shaded region of the sector is 7.1 square units.
What is the area of the shaded regions?Question 17) is a figure of a rectangle and two inscribed circles.
The area of a rectangle is expressed as: A = length × width
The area of a circle is expressed as: A = πr²
Where r is the radius.
To determine the area of the shaded region, we simply subtract the areas of the two circles from the area of the rectangle.
Area = ( Length × width ) - 2( πr² )
Area = ( 40 × 10 ) - 2( π × 5² )
Area = ( 400 ) - 2( 25π )
Area = 400- 50π
Area = 242.9 cm²
Area of the shaded region is 242.9 squared centimeters.
Question 18) is the a figure a sector of a circle and a right triangle.
The area of a sector is expressed as: A = (θ/360º) × πr²
The area of a triangle is expressed as: A = 1/2 × base × height
To determine the area of the shaded region, we simply subtract the areas of the triangle from the area of the sector.
Hence:
Area = ( (θ/360º) × πr² ) - ( 1/2 × base × height )
Plug in the values:
Area = ( (90/360º) × π × 5² ) - ( 1/2 × 5 × 5 )
Area = 25π/4 - 12.5
Area = 7.1
Therefore, the area of the shaded region is 7.1 square units.
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Missed 7 problems on math test got 95% how many questions were on test
Answer:
I think there is 140 questions
Suppose a sample of 1453 new car buyers is drawn. Of those sampled, 363 preferred foreign over domestic cars. Using the data, estimate the proportion of new car buyers who prefer foreign cars. Enter your answer as a fraction or a decimal number rounded to three decimal places
Answer:
"0.250" is the appropriate answer.
Step-by-step explanation:
Given:
New car sample,
= 1453
Preferred foreign,
= 363
Now,
The amount of new automobile purchasers preferring foreign cars will be approximated as:
= \(\frac{363}{1453}\)
= \(0.250\)
*How far can a train travel in 45 minutes if it is traveling at 80 miles per hour.
Answer:
60 miles
Step-by-step explanation:
distance = speed x time
45 minutes = 0.75 hours
0.75 x 80 = 60
Please help me !!! I need help asap
After calculating The perimeter of rectangle is 46.52 in the given rectangle.
What is area of rectangle?
area of rectangle can be defined as the product of length and breadth.
Given ,
A rectangle has a length 20 5 /6 and
breadth = 2 3/7
The perimeter of rectangle = 2 (l+b)
length = (120 + 5 ) / 6 = 125/ 6
breadth = (14+3) / 7 = 17/7
perimeter = 2 (125/6 + 17/7 )
= 2 ( (125*7 + 17 * 6) / 42 )
= 2 (875+102) / 42
= 2 * 23.26
= 46.52
Hence, after calculating The perimeter of rectangle is 46.52 in the given rectangle.
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Write the equation in slope-intercept form
through (-2, 1) parallel to y = -3x+1
Answer:
A parallel line has the same slope, but is translated away from the line it is parallel to. Let's create an equation using what we have:
−
1
=
−
3
(
−
2
)
+
b
−
1
=
6
+
b
−
7
=
b
y
=
−
3
x
−
7
Hope this helped!!
Determine the x- and y- intercepts for the graph defined by the given equation.
y = x + 8
a. x-intercept is (0,8)
c. x-intercept is (-8, 0)
y-intercept is (-8, 0)
y-intercept is (0,8)
b. x-intercept is (0, -8)
d. x-intercept is (8,0)
y-intercept is (8,0)
y-intercept is (0, -8)
The required correct answer is (a) x-intercept is (-8,0) and the y-intercept is (0,8).
What is the intercept in the equation?In the context of a linear equation, an intercept is a point where the graph of the equation crosses or intersects with one of the axes in a coordinate system. There are two types of intercepts:
x-intercept: the point where the graph crosses the x-axis. It occurs when y = 0. In other words, the x-intercept is the value of x when y = 0 in the equation.y-intercept: the point where the graph crosses the y-axis. It occurs when x = 0. In other words, the y-intercept is the value of y when x = 0 in the equation.Here,
To find the x-intercept, we set y = 0 in the equation y = x + 8 and solve for x:
0 = x + 8
x = -8
Therefore, the x-intercept is (-8, 0).
To find the y-intercept, we set x = 0 in the equation y = x + 8 and solve for y:
y = 0 + 8
y = 8
Therefore, the y-intercept is (0, 8).
So the correct answer is (a) the x-intercept is (-8,0) and the y-intercept is (0,8).
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4r^2+3s^2-rs r=-1 S=3
Need help with steps because everyone keeps saying it’s 26 but I get 28
Answer:
34
Step-by-step explanation:
4r² + 3s² - rs ← substitute r = - 1, s = 3 into the expression
= 4(- 1)² + 3(3)² - (- 1)(3)
= 4(1) + 3(9) - (- 3)
= 4 + 27 + 3
= 34
A gardener has 840 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a
river and so it does not need any fencing.
river
garden
What dimensions would guarantee that the garden has the greatest possible area?
shorter side:
ft (feet)
longer side:
ft (feet)
ft2 (square feet)
greatest possible area:
Question Help: Message instructor
Submit Question
Answer:
Shorter side: 210
Longer side: 420
area: 88200
Step-by-step explanation:
work below
If you haven't learned derivatives yet just use the vertex formula
6 Use this bag of 12 marbles
to answer these questions.
(Use fraction form to express
the probabilities.)
If you randomly select a marble...
a. What is the probability it will be black?
b. What is the probability it will be white?
c. What is the probability it will be grey?
d. What is the probability it will be white OR grey?
1. The probability of selecting a black marble is 5/12.
2. The probability of selecting a white marble is 3/12 or 1/4.
3. The probability of selecting a grey marble is 4/12 or 1/3.
4. The probability of selecting a white OR grey marble is 7/12.
a. There are 5 black marbles in the bag,
so the probability of selecting a black marble is 5/12.
b. There are 3 white marbles in the bag,
so the probability of selecting a white marble is 3/12 or 1/4.
c. There are 4 grey marbles in the bag,
so the probability of selecting a grey marble is 4/12 or 1/3.
d. The probability of selecting a white OR grey marble is
= 3/12 + 4/12
= 7/12.
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2
Type the correct answer in each box. Use numerals instead of words.
The weights of 1,000 onions from a certain farm follow a normal distribution with a mean of 150 grams and a standard deviation of 15 grams.
From the data, we can conclude that about
onions weigh more than 165 grams and about
onlons weigh less than 135 grams.
Answer:
Both boxes are 160
Step-by-step explanation:
I just took the quiz and got it right.
In A container, there are red, blue and green balls. 3/11 of ball s are red There are 35 more blue balls than red balls. The remaining 90 balls are green. How many more blue balls than green balls are there? of the balls are red.
what are the assymptotes of this equation
Two gears are connected by a chain. The larger gear has a linear velocity of 17π/6 inches per second. The angular velocity of the smaller gear is 34π/3 radians per minute.
What is the radius of the smaller gear?
1.25 feet
1.5 feet
15 feet
18 feet
So
\(\\ \rm\Rrightarrow v=r\omega\)
v is linear velocityomega is angular velocity\(\\ \rm\Rrightarrow r=\dfrac{v}{\omega}\)
\(\\ \rm\Rrightarrow r=\dfrac{17\pi}{6}\div\dfrac{34\pi}{3}=\dfrac{17\pi}{6}\times \dfrac{3}{34\pi}\)
\(\\ \rm\Rrightarrow r=\dfrac{1}{4}\)
\(\\ \rm\Rrightarrow r=0.25ft\)
Convert to ft
0.25(3)=0.75ft1 min=60s
Hence
34π/3×60=34π×20=680πSo
\(\\ \rm\Rrightarrow r=\dfrac{17\pi}{6}\times \dfrac{1}{680\pi}[\)
\(\\ \rm\Rrightarrow r=\dfrac{1}{40}\)
\(\\ \rm\Rrightarrow r=0.025in\)
Convert to ft
0.025(12)0.3ftNone of the above
The radius of the smaller gear is 15 feet, Option C is correct.
What is Velocity?Velocity is defined as the rate of change of distance of a body with respect to time
We can use the relationship between linear velocity and angular velocity for gears to solve this problem:
v = rω
where v is the linear velocity, r is the radius of the gear, and ω is the angular velocity.
We are given the linear velocity of the larger gear, which is 17π/6 inches per second.
v = 17π/6 inches per second
ω = (34π/3) / 60 radians per second
the radius of the smaller gear is:
r = v / ω
= (17π/6) / ((34π/3) / 60)
= 17π/6×60/(34π/3)
=17π/6×60×3/34π
= 1/6 ×60× 3/2
= 180/12
=15 feet
Hence, the radius of the smaller gear is 15 feet.
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Part a:Cell phone usage grew about 23% each year from 2010 to 2016. If cell phone usage in 2010 was 43 million, write a function f(x) to model U.S. cell phone usage over that time period, where x is the number of years since 2010.
Part b estimate the cell phone usage in 2013.round to the nearest ten thousand.
Answer:
The function f(x) to model U. S. cell phone usage over the time period of 2010 to 2016 can be expressed as f(x) = 43 * (1.23^x), where x is the number of years since 2010. Part b: The estimated cell phone usage in 2013 can be calculated by substituting x = 3 into the function f(x) = 43 * (1.23^x). This yields an estimated cell phone usage of 68.4 million in 2013, which can be rounded to the nearest ten thousand to 68 million.
Step-by-step explanation:
The point G(6,4) is rotated 180° clockwise around the origin. What
are the coordinates of the resulting point, G'?
Answer:
Step-by-step explanation:
when (x,y) is rotated through 180 then new coordinates are (-x',-y')
G(6,4)→G'(-6,-4)
Please help I been stuck on this question for so long
Answer: 1/ 3 ^9
Step-by-step explanation:
Answer:
1/39
Step-by-step explanation:
3-9=1/39
The answer is 0ne over three exponent nine
sin(x)-cos(x)/sin²(x)-cos²(x) = 1
The prove of the given trigonometric function is given below.
The given trigonometric function is,
(sin⁴(x) - cos⁴(x))/(sin²(x) - cos²(x))
Now proceed left hand side of the given expression:
We can write the expression as,
⇒[(sin²(x))² - (cos²(x))²]/(sin²(x) - cos²(x))
Since we know that ,
Algebraic identity:
a² - b² = (a-b)(a+b)
Therefore the above expression be
⇒(sin²(x) - cos²(x))(sin²(x) + cos²(x))/(sin²(x) - cos²(x))
⇒(sin²(x) + cos²(x))
Since we know that,
Trigonometric Identities come in handy when trigonometric functions are used in an expression or equation. Trigonometric identities hold for all values of variables on both sides of an equation. Geometrically, these identities include one or more trigonometric functions (such as sine, cosine, and tangent).
Then,
sin²(x) + cos²(x)² = 1 is an trigonometric identity
Hence,
(sin⁴(x) - cos⁴(x))/(sin²(x) - cos²(x)) = 1
Hence proved.
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Name any two points on a horizontal line that is 2 units above the x-axis
Answer: (1,2)(2,2)
Step-by-step explanation:
PLSSSSSSSSSSSSSSS help me ASAP
Answer:
Use calculator soup while i was in college i used it and it helped SOOO much
Step-by-step explanation:
URGANT!! Please help
A certain forest covers an area of 1900 km2. Suppose that each year this area decreases by 4.25%. What will the area be after 6 years?
Use the calculator provided and round your answer to the nearest square kilometer.
Answer:
1464 square kilometers
Step-by-step explanation:
Understanding :
Since it decreases by 4.25%, we can say that each year, the area is 95.75% of the previous yearThe function can be written as 1900(0.9575)ⁿ, where n is the number of yearsYear 6 :
1900(0.9575)⁶1900(0.77060655)1464 square kilometers (nearest square kilometer)Given sin x = 8/10, 90° <x< 180° and tan y = -12/5, 270° ≤y≤ 360°. Without finding the values for angle x and y, determine cos x cos y + sin x sin y / tan x - tan y.
Answer:\(-\frac{189}{208}\)
Step-by-step explanation:
Given
\(\sin x=\frac{8}{10}\)
x lies in the second quadrant where sin and cosec is positive and rest trigonometric functions are negative
so, \(\cos x=-\sqrt{1-sin ^2 x}\\\cos x=-\sqrt{1-(\frac{8}{10})^2}=-\sqrt{\frac{36}{100}}\\\cos x=-\sqrt{\frac{6}{10}}\)
\(\tan x=\frac{\sin x}{\cos x}=-\frac{4}{3}\)
similarly, \(\tan y=-\frac{12}{5}\)
Also, y lies in 4 th Quadrant where cos and sec is positive and rest trigonometric functions are negative
\(\sec y=\sqrt{1+\tan ^2y}=\sqrt{1+(-\frac{12}{5})^2}\\\sec y=\frac{13}{5}\\\cos y=\frac{5}{13}\\\sin y =\frac{\tan y}{\cos y}=-\frac{12}{13}\)
Now putting the values
=\(\dfrac{\cos x \cos y+\sin x\sin y}{\tan x-\tan y}=\dfrac{(\frac{-6}{10})(\frac{5}{13})+(\frac{8}{10})(\frac{-12}{13})}{(\frac{-8}{6})-(\frac{-12}{5})}\\\dfrac{\cos x \cos y+\sin x\sin y}{\tan x-\tan y}=\dfrac{\frac{-126}{130}}{\frac{16}{15}}=-\frac{189}{208}\)
What can you do to y = |x| to move the graph 2 units left?
A department store is having a holiday sale. Mr. Smith bought a couch
that had a regular price of $500. He received a $150 discount. What was
the percentage of the discount that Mr. Smith received?
Answer:
Step-by-step explanation:
500×30=15000
John was having a party he knows his bowl can hold 2/3 of a bag of Doritos.if he has 4 bags or Doritos how many bowls does he need
Step-by-step explanation:
2•4 =8
8/3 =2 2/3
answer : 3
Which expression is equivalent to StartRoot 8 x Superscript 7 Baseline y Superscript 8 Baseline EndRoot? Assume x greater-than-or-equal-to 0.
x y squared StartRoot 8 x cubed EndRoot
2 x cubed y cubed StartRoot x y squared EndRoot
2 x cubed y Superscript 4 Baseline StartRoot 2 x EndRoot
4 x cubed y Superscript 4 Baseline StartRoot x EndRoot
The expression that is equivalent to StartRoot \(8 x^7 y^8\) EndRoot is (\(2 x^3 y^4\) StartRoot 2 x EndRoot)^2.
To understand why this is the case, let's break down each expression and simplify them step by step:
StartRoot \(8 x^7 y^8\) EndRoot:
We can rewrite 8 as \(2^3\), and since the square root can be split over multiplication, we have StartRoot \((2^3) x^7 y^8\) EndRoot. Applying the exponent rule for square roots, we get StartRoot \(2^3\) EndRoot StartRoot \(x^7\) EndRoot StartRoot \(y^8\) EndRoot.
Simplifying further, we have 2 StartRoot \(2 x^3 y^4\) EndRoot StartRoot \(2^2\) EndRoot StartRoot \(x^2\) EndRoot StartRoot \(y^4\) EndRoot. Finally, we obtain 2 \(x^3 y^4\) StartRoot 2 x EndRoot, which is the expression in question.
(\(2 x y^2\) StartRoot 8 x^3 EndRoot)^2:
Expanding the expression inside the parentheses, we have \(2 x y^2\)StartRoot \((2^3) x^3\) EndRoot. Applying the exponent rule for square roots, we get \(2 x y^2\) StartRoot \(2^3\) EndRoot StartRoot \(x^3\) EndRoot.
Simplifying further, we have \(2 x y^2\) StartRoot 2 x EndRoot. Squaring the entire expression, we obtain (\(2 x y^2\) StartRoot 2 x EndRoot)^2.
Therefore, the expression (\(2 x^3 y^4\) StartRoot 2 x EndRoot)^2 is equivalent to StartRoot \(8 x^7 y^8\) EndRoot.
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What is the sum of the interior angles of a regular polygon with 9 sides?
1,260°
1,620°
1,800°
1,980°
The sum of the interior angles of a regular polygon with 9 sides will be 1260°. The correct option is A.
What is the angle of the polygons?An angle is defined in mathematics as the figure formed by joining two rays at their common endpoint. An interior angle is an angle that exists within a shape. Polygons are closed shapes with sides and vertices. All of the interior angles of a regular polygon are equal.
Given that the number of the sides of the polygon is 9. The sum of the interior angles of the polygons will be calculated as,
Sum = ( n - 2 ) 180°
Sum = ( 9 - 2 ) 180
Sum = 7 x 180
Sum = 1260°
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