Answer:
yes 1 : 8
Step-by-step explanation:
To determine if the figures are similar calculate the ratio of corresponding sides.
[tex]\frac{24}{3}[/tex] = 8
[tex]\frac{32}{4}[/tex] = 8
[tex]\frac{112}{14}[/tex] = 8
Since all 3 ratios are equal the figures are similar (SSS )
and the ratio small : large = 1 : 8
Given f(x) = x3 – 2x2 – x + 2,
the roots of f(x)
f(x) = x³ – 2x² – x + 2
0 = x3 – 2x2 – x + 2
(x-2)(x-1)(x+1)=0
x1=-1
x2=1
x3=2
For this case we must follow the steps below:
We factor the polynomial, starting by factoring the maximum common denominator of each group:
[tex]x ^ 2 (x-2) - (x-2)[/tex]
We factor the maximum common denominator[tex](x-2):[/tex]
[tex](x-2) (x ^ 2-1)[/tex]
Now, by definition of perfect squares we have:
[tex]a ^ 2-b ^ 2 = (a + b) (a-b)[/tex]
Where:
[tex]a = x\\b = 1[/tex]
Now, we can rewrite the polynomial as:
[tex](x-2) (x + 1) (x-1)[/tex]
To find the roots we equate to 0:
[tex](x-2) (x + 1) (x-1) = 0[/tex]
So, the roots are:
[tex]x_ {1} = 2\\x_ {2} = - 1\\x_ {3} = 1[/tex]
Answer:
[tex]x_ {1} = 2\\x_ {2} = - 1\\x_ {3} = 1[/tex]
The distance of a pathway around a park is 4 1/5 miles. The park manager wants to place lampposts every 3/10 mile. How many lampposts in all will be places in the pathway A - 12 B- 14 C- 24 D- 28
Answer:
14
Step-by-step explanation:
Distance of the pathway around a park = 4 1/5 miles
Distances between lamppost = 3/20 miles
Numbers of 3/10 intervals
= 4 1/5 ÷ 3/10
= 21/5 x 10/3
= 14
Number of lamp posts = 14
28 because the number of spots in the pathway where the lampposts will be placed is 1/5 divided by 3/10=14. since each spot will have 2 lampposts, there will be 14*2=28 lampposts in all.
hope this helped!!!!!!!!!!!!!!!!!!!!!!!!
The function g(x) is graphed on the coordinate grid.
Which statements are true of g(x)? Check all that apply.
Answer:
the function g(X) is a translation of [tex]f(x) = \sqrt{x}[/tex]
the range is {y|y≥-1}
the function g(x) can be translated 3 units right and 1 unit up to get the function [tex]f(x) = \sqrt{x}[/tex]
Step-by-step explanation:
Given the graph of a function g(x)
g(x) looks like a square root function
So parent function is [tex]f(x) = \sqrt{x}[/tex]
the function g(X) is a translation of [tex]f(x) = \sqrt{x}[/tex]
the domain is {x| x ≥ -3}
the range is {y|y≥-1}
The parent function [tex]f(x) = \sqrt{x}[/tex] starts at (0,0)
so g(x) is translated 3 units left and 1 unit down
the function g(x) can be translated 3 units right and 1 unit up to get the function [tex]f(x) = \sqrt{x}[/tex]
Answer:
The correct options are 1, 3 and 5.
Step-by-step explanation:
The given function is a continuous increasing curve which is increasing at decreasing rate. It means it is the graph of a radical function.
Parent radical function is
[tex]f(x)=\sqrt{x}[/tex]
It means function g(x) is the translation of function [tex]f(x)=\sqrt{x}[/tex]. Option 1 is correct.
Domain is the set of input values.
Function is defined for all x ≥ -3.
Domain = { x | x ≥ -3 }
Option 2 is incorrect.
Range is the set of output values.
The values of the function are always greater than or equal to -1.
Range = { y | y ≥ -1 }
Option 3 is correct.
The graph of parent function [tex]f(x)=\sqrt{x}[/tex] shifts 3 units left and 1 unit down to get the graph of g(x). So the function g(x) is defined as
[tex]f(x)=\sqrt{x+3}-1[/tex]
Option 4 is incorrect.
The function g(x) can be translated right 3 units and up 1 unit to create the function [tex]f(x)=\sqrt{x}[/tex].
Option 5 is correct.
Mine A is 225 feet underground and Mine B has an elevation of -223 feet. Which mine is further underground
Answer: Mine A
Step-by-step explanation: Mine A is further underground because elevation means height and when it’s shows a number that is negative that means underground. 225 is greater than 223. So Mine A is further underground.
Answer:
Step-by-step explanation:
Mine A, Mine B is not even a mine, its negative, not a hole
Where mBD =70° and mCA = 170°
Answer:
m∠BPD = 120
mBC + mAD = 120°
Step-by-step explanation:
according to intersecting chord theorem: The measure of the angle formed by two chords that intersect inside the circle is [tex]\frac{1}{2}[/tex] the sum of the chords' intercepted arcs.
m∠BPD = [tex]\frac{1}{2}[/tex] (M∠BD + M∠CA)
= [tex]\frac{1}{2}[/tex] (70 + 170)
= [tex]\frac{1}{2}[/tex] (240)
m∠BPD = 120
We know that a circle has a total of 360° around the center of circle. To find the measure of the remaining measure of angle of arcs, subtract them from the whole that is 360°
mBC + mAD = 360 - ( 70 + 170 )
= 360 - 240
mBC + mAD = 120°
1.The two legs of a right triangle measures 3 feet and 2 feet. What is the length of the hypotenuse?
Answer:
5; you add the two legs for the hypotenuse
Step-by-step explanation:
The length of the hypotenuse is 5 feet.
How to know the length of the hypotenuse of this right triangle:
The hypotenuse is the opposite side of the right angle in the triangle. It’s also the longest side of the triangle.
The Pythagorean Theorem helps us calculate the hypotenuse of a right triangle if we know the sides of the triangle.
Here, a = 3 feet.
b = 2 feet.
Then hypotenuse will be = (√3 + √2) feet
= 5 feet.
The answer is 5 feet.
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what is the volume of a oblique cylinder with a height of 18 and a radius of 10
Answer:
[tex]V=1,800\pi\ units^{3}[/tex]
Step-by-step explanation:
we know that
The volume of the cylinder is equal to
[tex]V=\pi r^{2}h[/tex]
we have
[tex]r=10\ units[/tex]
[tex]h=18\ units[/tex]
substitute
[tex]V=\pi (10)^{2}(18)[/tex]
[tex]V=1,800\pi\ units^{3}[/tex]
PLZ HURRY IT'S URGENT!!
The length of a rectangle is 13 feet. The width is 9 feet. What is the perimeter of the rectangle? A. 35 feet B. 13 feet C. 44 feet D. 22 feet
Answer: C) 44
======================================
Work Shown:
P = 2*(L+W)
P = 2*(13+9) ... plug in given length and width
P = 2*22
P = 44
Answer:
Step-by-step explanation:
At Camper’s Paradise, sales have increased 15%, 20%, and 10% over the past three years; that is, 15% three years ago, 20% two years ago, and 10% one year ago. If sales this year are $1,000,000, how much were sales three years ago? Round each year’s sales to the nearest dollar.
Answer:
10000000
Step-by-step explanation:
13+(-29)=
I NEED HELP FAST!!!!!!
Answer:
-16
Step-by-step explanation:
13+(-29) = 13-29 = -16
Answer: -16
Step-by-step explanation:
Try Subtracting 13 from positive 29. This will help you out!
Karen has a cube that has a length of 6 inches. What is the surface area of this cube?
Answer:
circle
Step-by-step explanation:
Answer:
216 in²
Step-by-step explanation:
A cube has 6 congruent square faces, thus
area of 1 face = 6 × 6 = 36 in² and
area of 6 faces = 6 × 36 = 216 in²
What is the vertex of the quadratic function f(x) = (x – 6)(x + 2)?
Answer:
The vertex is (2,-16)
Step-by-step explanation:
The given function is [tex]f(x)=(x-6)(x+2)[/tex]
We expand to obtain;
[tex]f(x)=x^2+2x-6x-12[/tex]
[tex]f(x)=x^2-4x-12[/tex]
We complete the squares to obtain;
[tex]f(x)=x^2-4x+(-2)^2-12-(-2)^2[/tex]
[tex]f(x)=x^2-4x+(-2)^2-12-4[/tex]
[tex]f(x)=(x-2)^2-16[/tex]
The vertex form is [tex]f(x)=(x-2)^2-16[/tex]
Comparing this to
[tex]f(x)=a(x-k)^2+k[/tex]
The vertex is (h,k)= (2,-16)
Final answer:
The vertex of the quadratic function f(x) = (x - 6)(x + 2) is found by expressing the function in vertex form. After completing the square, the vertex of the function is determined to be at the point (2, -16).
Explanation:
To find the vertex of the quadratic function f(x) = (x
– 6)(x + 2), we first need to express the function in vertex form, which is y = a(x - h)² + k, where (h, k) is the vertex of the parabola. Multiplying out the factors gives us f(x) = x² - 4x - 12. Completing the square allows us to transform this equation into vertex form.
First, Factor out the leading coefficient (which is 1 in this case, so this step is not needed), and then rewrite the function isolating the terms with x:
f(x) = x² - 4x + ____ - 12 + ____.
We complete the square by finding the value that makes x² - 4x + ____ a perfect square trinomial. This value is (-4/2)² = 4, so we add and subtract 4 inside the function:
f(x) = x² - 4x + 4 - 12 - 4.
Now we have f(x) = (x - 2)² - 16. Thus, the vertex form of the function is y = (x - 2)² - 16, and the vertex of the parabola is at the point (2, -16).
which equation in slope intercept form contains the point (4, -1) and has a slope of 3
Answer:
Final answer is [tex]y=3x-13[/tex].
Step-by-step explanation:
Given that slope of the line is m=3
Plug the given point (4,-1) and the slope m=3 into point sloep formula:
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-(-1)=3\left(x-4\right)[/tex]
[tex]y+1=3\left(x-4\right)[/tex]
[tex]y+1=3x-12[/tex]
[tex]y=3x-12-1[/tex]
[tex]y=3x-13[/tex]
Which looks like slope intercept form of line y=mx+b
Hence final answer is [tex]y=3x-13[/tex].
The answer is:
The equation in slope-intercept form is:
[tex]y=3x-13[/tex]
Why?To solve the problem and find equation in slope-intercept form of the line, we need to use the following formula:
[tex]y=mx+b[/tex]
We are given the slope of the line, so, rewriting we have:
[tex]y=3x+b[/tex]
Then, to find "b" we need to substitute the given point into the equation, so, substituting we have:
[tex]y=mx+b[/tex]
[tex]-1=3*(4)+b[/tex]
[tex]-1=12+b[/tex]
[tex]b=-1-12=-13[/tex]
Therefore, writing the equation of the line, we have:
[tex]y=3x-13[/tex]
Have a nice day!
a school cafeteria makes cheese sauce for macaroni using 15 cups of swiss cheese 17 cups of cheddar cheese. Perry tries to make the sauce for a family party using 5 cups of swiss cheese and 7 cups of cheddar cheese. is Perry using the correct ratio? explain. (pls do explain. it's on my school work and I need an explanation.)
(middle school ratios)
Cafeteria ratio of Swiss cheese to cheddar cheese is 15:17.
Perry’s ratio of Swiss chess to cheddar cheese is 5:7.
Wrong ratio because 5 * 3 = 15 but 7 * 3 does not equal 17.
For this case we have that by definition, it is known as proportion to the relationship of equality that exists between two reasons, that is, between two comparisons. That is: if [tex]\frac {a} {b}[/tex]is a ratio, then the equality [tex]\frac {a} {b} = \frac {c} {d}[/tex] will be a proportion.
Then, 15 cups of Swiss cheese for every 17 cheddar:
1[tex]5:17\\\frac {15} {17}[/tex]
We want to verify the proportion:
[tex]15:17 :: 5: 7\\\frac {15} {17} = \frac {5} {7}\\7 * 15 = 5 * 17[/tex]
Equality is not met!
Answer:
You are not using the correct proportion
Distance Between Points
Choose all that correctly give the distance in the coordinate plane between two points.
(−5, 8), (5, 8)
d = 10
(3, 8), (3, −6)
d = 12
(−2, −9), (−2, 4)
d = 13
(8, −7), (1, −7)
d = 9
(−12, −4), (−6, −4)
d = 6
Answer:
(−5, 8), (5, 8)
d = 10
(−2, −9), (−2, 4)
d = 13
(−12, −4), (−6, −4)
d = 6
Step-by-step explanation:
Answer:
(−5, 8), (5, 8)
d = 10
(−2, −9), (−2, 4)
d = 13
(−12, −4), (−6, −4)
d = 6
Step-by-step explanation:
Change 455 cm to meters
Answer:
4.55 meters
Step-by-step explanation:
Answer:
Step-by-step explanation:
your answer is 4.55 :)
on a piece of paper, graph f(x)= x if x<1
Answer:
see below
Step-by-step explanation:
The function is only defined for x < 1, and is undefined for x=1 or more. Thus the graph stops at x=1, with an open circle indicating the function is not defined there.
Answer:
The required graph is shown in figure 1.
Step-by-step explanation:
Consider the provided function f(x)=x if x<1
Here the sign of inequality is x<1.
That means the value of x can be anything less then 1.
Note the sign "<" indicates that the value x is strictly less than 1 also it is not equal to 1.
For x=1 the function is not defined.
For the inequity "<" and ">" we use an open dot or open circle which shows that the value is not included.
Now draw the table and substitute some value of x as shown.
Substitute x=0 in the provided equation.
f(x)=0
For x=0 the value of f(x) is also 0.
Substitute x=-1
f(x)=-1
For x=-1 the value of f(x) is also -1.
Substitute x=-2
f(x)=-2
For x=-2 the value of f(x) is also -2.
The required table is shown below:
x 0 -1 -2
f(x) 0 -1 -2
Now plot the above points and join them.
The required graph is shown in figure 1.
How does the combined volume of the small cubes compare to the volume of the large cube
Answer: A large cube consists of smaller cubes. The more small cubes, the greater the large cube.
Step-by-step explanation:
Can someone help me find the rule?
I think the rule might be x-9
Find two numbers that multiply to 60 and add to 19
the answers are 15 times 4.
find the geometric mean between 7 and 12
Answer:9.2
Step-by-step explanation:
Which of the points A(−6, 2), B(0, 0), C(4, −2), D(−12, 6), E(−10, 10) belong to the graph of direct variation y=− 1/2x?
Answer:
B
Step-by-step explanation:
To solve this, we can plug in values to see which one works. Since it is a variable equals a variable, the answer is B(0,0)
What is the length of segment BC. ( ) units
Answer:
BC = 144 units
Step-by-step explanation:
It is given a line segment BC.
D is the point on the line segment.
To find the length of BC
BC = 8x
CD = 3x + 8 and BD = 4x + 10
BC = CD + BD
8x = 3x + 8 + 4x + 10
8x = 7x + 18
x = 18
BC = 8x = 8 * 18 = 144 units
Therefore the length of segment BC = 144 units
Segment BC is 144 units
Evaluate cos 90°. Round your answer to the nearest hundredth if necessary
Cos(90)= 0.00
It is only zero
The value of cosine 90°. or cos 90° is 0.
What are Trigonometric ratios?Trigonometric ratios are the ratios of the length of sides of a triangle.
In trigonometry, there are six trigonometric ratios, namely, sine, cosine, tangent, secant, cosecant, and cotangent.
We know that,
According to the trigonometric table the value of cos 90° is 0.
i.e., cos 90°.
This is because there is no horizontal component of the angle: The horizontal component of the angle is 0, so, the cosine of 90° is 0.
In other words,
the cosine of an angle tells the size of the adjacent side of a right triangle compared to the hypotenuse. Look at the unit circle to see why the adjacent side (the x axis) has a width of 0 when the angle between the initial arm and the terminal arm is a right angle.
Thus, value of cos 90 is 0.
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plz help me brainliest to whoever answers first.
Answer:A) n=-6
Step-by-step explanation:
Answer:
n = -6
Step-by-step explanation:
3n + 14 = -4
Subtract 14 from both sides
3n = -18
Divide both sides by 3
n = -6
What is the mean of the normal distribution shown below? -1 0 1 2
Answer:
0.5
Step-by-step explanation:
-1 + 0 + 1 + 2 = 2
2/4 = 0.5
Answer:
well its not 1 cuz i got it wrong
Step-by-step explanation:
let me know in the comments
A pair of pants costs twice as much as a shirt. The total cost of 1 pair of pants and 1 shirt is $18. If s represents the cost of 1 shirt, which equation could you use to find the cost of 1 shirt?
The total cost of 1 pair of pants and 1 shirt is $18 . If s represents the cost of 1 shirt, which equation could you use to find .
For this case we propose a system of equations:
p: Variable representing the cost of a pair of pants
s: Variable representing the cost of a shirt
A pair of pants costs twice as much as a shirt, means:
[tex]p = 2s[/tex]
The total cost of 1 pair of pants and 1 shirt is $ 18:
[tex]p + s = 18[/tex]
We substitute the first equation in the second:
[tex]2s + s = 18\\3s = 18\\s = \frac {18} {3}\\s = 6[/tex]
Answer:
The following equation can be used:
[tex]2s + s = 18[/tex]
y=6x+1 for x=5. what is the solution
Answer: y=31
Step-by-step explanation
If x=5 and y=6x+1, you plug in 5 for x in the equation y=6x+1.
This would cause it to be y=6(5)+1.
Then you multiply 6*5, which equals 30. thatll turn into y=30+1
30+1=31, so y=31
Answer:
Y = 31
Step-by-step explanation:
Replace x with 5
Y = (6*5) + 1
Use PEMDAS
Parentheses
Exponent
Multiplication
Division
Subtraction
Addition
6 * 5 = 30
Y = 30 + 1
30 + 1 = 31
Y = 31
I hope I helped!
Let me know if you need anything else!
~ Zoe
Phillipa earns $10 for each haircut she gives.
Which equation shows the amount Phillipa will earn if she gives h haircuts?
(Use t to represent the total earned, and h to represent the number of haircuts.)
a. t = 10 + h
b. t = 10h
c.t = 10 – h
d. t = 10/h
Answer is B, Just some mutiplaction
Lily is going to give away all the pieces of candy in a bag. She can give an equal number of pieces of candy to 5, 3, or 2 people. Which number of pieces of candy could be in Lily’s bag?
A. 12
B. 20
C. 30
D. 45
Answer:C 30
Step-by-step explanation: They all divide evenly when divided by 30.