The standard equation of a parabola with vertex (0, 0) and focus (-2, 0) is y^2 = -8x. It opens to the left with the directrix x = 2.
To find the standard equation of a parabola with vertex (0, 0) and focus (-2, 0), we can use the definition of a parabola as the set of all points equidistant from a point (the focus) and a line (the directrix).
Since the focus is at (-2, 0), the directrix is a vertical line equidistant from the vertex on the opposite side of the focus, which is x = 2. The distance between the vertex and the focus (or the vertex and the directrix) is 2 units, so q = 2. This means that the parabola opens to the left.
The standard equation for a parabola that opens horizontally is of the form (y - k)^2 = 4p(x - h), where (h, k) is the vertex and p is the distance from the vertex to the focus. Here, p = -2 because the parabola opens to the left.
Therefore, the standard equation for the given parabola is y^2 = -4(2)x or y^2 = -8x.
Bulan rows on a crew team. Her team rows their boat at a split (rate) of 2 min/500 m.
What is Bulan’s team’s rowing rate in m/min ?
Answer:
250
Step-by-step explanation:
If Bulan's team rows their boat at a rate of
2
minutes per
500
meters, they row at a rate of
1
minute per
250
meters. We know this because
1
minute is
1
2
of
2
minutes, and in this time, they will have to have rowed
1
2
the distance they would row in
2
minutes (
500
m).
1
2
of
500
is
250
.
So, we now have the rate in min/m.
If, every
1
minute, Bulan's team rows
250
meters, this means that every
250
meters, they have rowed for
1
minute.
Bulan's team's rowing rate in m/min is
250
m/
1
min.
Answer with explanation:
Speed of rowing boat by Bulan is given as:
→ 2 Minute = 500 meter
→ 1 Minute = 250 Meter
So, Bulan Rowing rate is equal to
[tex]250 \frac{\text{meter}}{\text{minute}}[/tex]
Find the length of the base of a square pyramid if the volume is 256 cubic inches and the height is 12 inches.
Answer: The base of the square is 52.67
Step-by-step explanation:
256=1/2bh
b=base
h=height
256=1/2(12)b
256=6b
52.67=b
Which is the graph of y = cos4(x - 2)?
Answer:
undefined
Step-by-step explanation:
Answer:
It's the image that is more compressed. This is because the period is decreased.
Step-by-step explanation:
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each situation to its corresponding expression. There are 7 trout fish in a pond, and the population doubles every year. Find the population after t years. arrowBoth A company buys a machine for $3,000. The value of the machine depreciates by 7% every year. Find the value of the machine after t years. arrowBoth The initial population of a colony of ants is 300. The number of ants increases at a rate of 1.5% every month. Find the population of ants after t months. arrowBoth A research laboratory is testing a new vaccine on 300 infected cells. The decay rate is 1.5% per minute. Find the number of infected cells after t minutes. arrowBoth
Answer:
Step-by-step explanation:
We will use the pattern f(x)= a(b)^t where a is the initial value, b is the base of the exponent. All these questions are about exponent function
A) Number of trout fish in the pound = 7 , it means a =7
population increases double every year. It means b=2
f(x)= a(b)^t
f(x)=7(2)^t
B) Cost of machine = $3000
The value depreciated every year = 7%
It means 100%-7%= 93% which is equal to 0.93
Therefore,
a = 3000
b = 0.93
f(x)= a(b)^t
f(x)=3000(0.93)^t
C) Initial population of a colony of ants = 300
The number of ants increase at a rate of 1.5%
It means 100%+1.5%=101.5%
101.5% = 1.015
Therefore,
a= 300
b = 1.015
f(x)= a(b)^t
f(x)=300(1.015)^t
D) A research laboratory is testing a new vaccine on 300 infected cells
The decay rate is 1.5% per minute
It means 100%-1.5% =98.5%
98.5% = 0.985
Therefore,
a = 300
b = 0.985
f(x)= a(b)^t
f(x)= 300(0.985)^t ....
Given the frequency table, what percentage of the students that like rock are also in grades 11–12? Round to the nearest whole percent.
Band Preference for School Dance
Rap Rock Country Row totals
Grades 9–10 40 30 55 125
Grades 11–12 60 25 35 120
Column totals 100 55 90 245
a. 10%
b. 21%
c. 25%
d. 45%
Answer:
d. 45%
Step-by-step explanation:
In total there are 30 + 25 = 55 students in total that like rock. From these there are 25 who are in grades 11-12. This makes that (25/55) * 100% = 45.45% of the students that like rock are in grades 11-12.
Answer: d. 45%
Step-by-step explanation:
According to the frequency table there are 30 sudents who like rock in grades 9-10 and 25 students that like rock and are in grades 11-12.
25 ÷ 55 = n ÷ 100
25 · 100 = 55 · n
2500 ÷ 55 = n n = 45.454545 n = 45%
55 is the total amount of students that like rock
25 is the total amount of students that like rock in grades 11-12
100 is the total percentage
modern computer microchips contain millions of microscopic Parts call Transistors in a certain microchip the transistors are only 0.004 millimeters wide
A.on the microchip these transistors are placed side-by-side filling width of 2 mm How many transistors are there?
B.on this microchip there is an even smaller component called a capacitor. If the capacitors have a width of just 0.00004 mm, How many would it take to fill up the 2mm space?
C.how many capacitors will fit in the width of one transistor?
Answer:
A. 500 transistors
B. 50,000 capacitors
C. 100 capacitors
Step-by-step explanation:
The width of one transistor =0.004 mm
The total length filled by the 0.004 mm transistors is 2 mm.
A. In 2 mm there are: 2 mm/ 0.004 mm/transistor =500 transistors.
B. In 2 mm there are 2 mm/ 0.00004 mm/capacitor= 50,000 Capacitors.
C. The number of capacitors to fit in one transistor is given by the quotient between the width of a transistor and the width of a capacitor.
=0.004 mm ÷0.00004 mm
=100 capacitors/transistor
Thus only 100 capacitors can fit into 1 transistor
Convert r = 8cos θ to rectangular form.
A. x^2 + y^2 = 8y
B. x^2 + y^2 = 64x
C. x^2 + y^2 = 16x
D. x^2 + y^2 = 8x
Answer:
D
Step-by-step explanation:
To convert from polar to rectangular form
• x = rcosΘ , y = rsinΘ
• r = [tex]\sqrt{x^2+y^2}[/tex] ⇒ r² = x² + y²
Given
r = 8cosΘ
r = 8 × [tex]\frac{x}{r}[/tex] ( multiply both sides by r )
r² = 8x, hence
x² + y² = 8x ⇒ D
Answer:
The correct answer is D
Step-by-step explanation:
Plato
Suppose medical records indicate that the length of newborn babies(in inches) is normally distributed with a mean of 20 and a standard deviation of 2.6 find the probability that a given infant is between 14.8 and 25.2 inches long
Answer:
P=0.954 or 95.4%
Step-by-step explanation:
Using the formula for the standardized normal distribution to find Z:
[tex]Z=\frac{X-\mu}{\sigma}[/tex]
Where μ is the mean (μ=20) and σ is the standard deviation (σ=2.6).
[tex]Z_{1} =\frac{14.8-20}{2.6}=-2.0[/tex]
[tex]Z_{1} =\frac{25.2-20}{2.6}=2.0[/tex]
In the table of the normal distribution, we can look for positive values z, and these values are going to represent the area under the curve between z=0 and the values searched. the negatives values are found by symmetry (with the corresponding positive value but remember this area is under the left side of the curve). To find a value in the table, find the units in the first column and the follow over the same row till you find the decimals required.
[tex]P_1=0.4772[/tex]
[tex]P_2=0.4772[/tex]
[tex]P_1[/tex] represents the probability of length being between 14.8 and 20 (the mean) and [tex]P_2[/tex] represents the probability of length being between 20 and 25.2, The requested probability is the sum of these two.
[tex]P=P_1+P_2=0.954[/tex]
Answer:
95%
Step-by-step explanation:
x2 + 12x =
– 20
what are the roots of the following quadratic equation
Answer:
x = -2
x = -10
Step-by-step explanation:
Step 1 : Rearrange
x² + 12x + 20 = 0
Step 2: Factorise
(x + 2)(x + 10)
Step 3: Find the roots / values of x
Make each bracket equal zero.
(x + 2) = x = -2
(x + 10) = x = -10
Hope this helps!
What is the present value of $992 to be received in 13.5 years from today if our discount rate is 3.5 percent?
Answer: $1578
Step-by-step explanation:
1) Take your discount rate of 3.5% and convert it to decimal form (0.035)
2) Then, 0.035 * 13.5 = 1.59109
3) 1.59109 * 992 = $1578
Which inequalities have the solution set graphed on the number line? Check all that apply.
Answer:
x ≥ -2; -2 ≤ x
Step-by-step explanation:
Your number line shows a closed diamond -2.
That shows that 2 is a member of the solution set.
One interpretation of the inequality is
x ≥ -2
Another inequality with the same solution set is
-2 ≤ x
Answer:
x≥ -2
-2≤x
Step-by-step explanation:
In the given number line, the arrow is towards right. We know that if the arrow is towards right then the sign of the inequality is greater than >
Now, at the end point, which is 2, there is a solid circle. Hence, we must include 2 in our solution set.
Thus, there must be ≥ sign.
Hence, the inequality is x≥ -2
We can rewrite this as -2≤x
Sixth and seventh options are correct.
In △ABC,c=12, m∠B=27°, and a=9. Find b.
A. 11.5
B. 13.2
C. 6.8
D. 5.7
Answer:
Option D is correct.
Step-by-step explanation:
We are given c = 12
m∠B = 27°
a = 9
We need to find b
We would use Law of Cosines
[tex]b = a^2 + c^2 -2ac\,cosB[/tex]
Putting values and solving
[tex]b^2 = (9)^2 + (12)^2 -2(9)(12)\,cos(27°)\\b^2 = 81 + 144 - 216(0.891)\\b^2 = 81 + 144 - 192.456\\b^2 = 32.54\\taking\,\,square\,\,roots\,\,on\,\,both\,\,sides\\\\\sqrt{b^2} = \sqrt{32.54}\\ b = 5.7[/tex]
So, Option D is correct.
Answer:
D. 5.7
Step-by-step explanation:
We have been given that in △ABC,c=12, m∠B=27°, and a=9. We are asked to find the value of b.
We will use law of cosines to solve for b.
[tex]b^2=a^2+c^2-2ac\cdot \tect{cos}(B)[/tex]
Upon substituting our given values in law of cosines, we will get:
[tex]b^2=9^2+12^2-2\cdot 9\cdot 12\cdot {cos}(27^{\circ})[/tex]
[tex]b^2=81+144-216\cdot 0.891006524188[/tex]
[tex]b^2=225-192.457409224608[/tex]
[tex]b^2=32.542590775392[/tex]
Now, we will take square root of both sides of our equation.
[tex]b=\sqrt{32.542590775392}[/tex]
[tex]b=5.70461136059[/tex]
[tex]b\approx 5.7[/tex]
Therefore, the value of b is 5.7 and option D is the correct choice.
12x=76-20y
8x=84-20y
Answer:
x = -2, y = 5 → (-2, 5)Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}12x=76-20y&\text{change the signs}\\8x=84-20y\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-12x=-76+20y\\8x=84-20y\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-4x=8\qquad\text{divide both sides by (-4)}\\.\qquad x=-2\\\\\text{put the value of x to the second equation}\\\\8(-2)=84-20y\\-16=84-20y\qquad\text{subtract 84 from both sides}\\-100=-20y\qquad\text{divide both sides by (-20)}\\5=y\to y=5[/tex]
Find the LCM of 30 and 22
write an equation in point-slope form from the line through the given point with the given slope . (10,-9); m= -2
[tex]\bf (\stackrel{x_1}{10}~,~\stackrel{y_1}{-9})~\hspace{10em} slope = m\implies -2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-9)=-2(x-10)\implies y+9=-2(x-10)[/tex]
Which value of x that makes this equation true: 2/3x=10/3
Answer:
5
Step-by-step explanation:
If x=5...
2/3(5)=10/3
That would be true.
Answer:
x=5
Step-by-step explanation:
2/3 x = 10/3
Multiply each side by 3
3 *2/3 x = 10/3*3
2x = 10
Divide each side by 2
2x/2 = 10/2
x = 5
Which statement is true of the function f(x) = -3x? Select three options.
The function is always increasing.
The function has a domain of all real numbers.
The function has a range of
The function f(x) = -3x is always decreasing, has a domain of all real numbers, and also has a range of all real numbers. The statement about the function always increasing is false.
Explanation:When considering the function f(x) = -3x, we can evaluate its properties to determine which statements are true. First, since the coefficient in front of x is negative, the function has a negative slope, indicating that it is always decreasing, not increasing. This rules out the first statement.
Second, the domain of this function is indeed all real numbers because there are no restrictions on the values that x can take in the equation. So, the second statement is true.
Third, because x can take on any real number value and there's a constant multiplier of -3, the output can also take on any real number value, but will always be the opposite sign of x or zero. This means the range of the function is also all real numbers. Therefore, the statement about the range is incomplete as provided, but it is true that the range of f(x) is all real numbers.
The solution to a system of linear equations is (-3, -3) Which system of linear equations has this point as its solution?
A. x-5y = -12 and 3x+2y = -15
B. x-5y = -12 and 3x+2y = 15
C. x-5y = 12 and 3x+2y = -15
D. x-5y = 12 and 3x+2y = 15
Answer:
C. x-5y = 12 and 3x+2y = -15
Step-by-step explanation:
We need to substitute the solution into the equations
A. x-5y = -12 and 3x+2y = -15
-3 -5(-3) = -12
-3 +15 = -12
False
B. x-5y = -12 and 3x+2y = 15
-3 -5(-3) = -12
-3 +15 = -12
False
C. x-5y = 12 and 3x+2y = -15
-3 -5(3) = 12 3(-3) +2(-3) = -15
-3 -15 = 12 -9 -6 = -15
True True
D. x-5y = 12 and 3x+2y = 15
-3 -5(3) = 12 3(-3) +2(-3) = 15
-3 -15 = 12 -9 -6 = 15
True False
Which of the relations given by the following sets of ordered pairs is not a function?
Select one:
a. {(5,2),(4,2),(3,2),(2,2),(1,2)}
{
(
5
,
2
)
,
(
4
,
2
)
,
(
3
,
2
)
,
(
2
,
2
)
,
(
1
,
2
)
}
b. {(−4,−2),(−1,−1),(3,2),(3,5),(7,10)}
{
(
−
4
,
−
2
)
,
(
−
1
,
−
1
)
,
(
3
,
2
)
,
(
3
,
5
)
,
(
7
,
10
)
}
c. {(−8,−3),(−6,−5),(−4,−2),(−2,−7),(−1,−4)}
{
(
−
8
,
−
3
)
,
(
−
6
,
−
5
)
,
(
−
4
,
−
2
)
,
(
−
2
,
−
7
)
,
(
−
1
,
−
4
)
}
d. {(−6,4),(−3,−1),(0,5),(1,−1),(2,3)}
Answer:
B
Step-by-step explanation:
you cannot have to same x
Hence , Option B set is not a function
What is a function?A function is an equation which states relation between x and y variable.
How to solve?a-{(5,2),(4,2),(3,2),(2,2),(1,2)}
Here, x: x>1 ,x∈N, hence function is possible.
b. {(−4,−2),(−1,−1),(3,2),(3,5),(7,10)}
here ,x can't be established as same x has different values.
c. {(−8,−3),(−6,−5),(−4,−2),(−2,−7),(−1,−4)}
Here, every x has it's unique value hence function can be established.
d. {(−6,4),(−3,−1),(0,5),(1,−1),(2,3)}
Here, every x has it's unique value , hence function can be established.
∴option B - {(−4,−2),(−1,−1),(3,2),(3,5),(7,10)} is one from which we can't establish function.
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What is the slope of a line that passes through the points (-2,3) and (4,-12)
Answer:
m = -5/2
Step-by-step explanation:
Solve for slope with the following equation:
m (slope) = (y₂ - y₁)/(x₂ - x₁)
Let:
(4 , -12) = (x₁ , y₁)
(-2 , 3) = (x₂ , y₂)
Plug in the corresponding numbers to the corresponding variables:
m = (3 - (-12))/(-2 - 4)
m = (3 + 12)/(-2 - 4)
m = (15)/(-6)
Simplify the slope:
m = -(15/6) = -5/2
-5/2 is your slope.
~
[tex]\text{Hey there!}[/tex]
[tex]\bf\dfrac{y_2-y_1}{x_2-x_1}}\leftarrow\text{is the slope formula}[/tex]
[tex]\bf{y_2=-12}\\\bf{y_1=3}\\\bf{x_2=4}\\\bf{x_1=-2}[/tex]
[tex]\dfrac{-12-3}{4-(-2)}\\\\\\\text{-12 - 3 = -15}\\\\\\\text{4 - (-2) = 6}[/tex]
[tex]= \dfrac{-15}{6}[/tex]
[tex]\boxed{\boxed{\bf{Answer: \dfrac{-15}{6}}}}\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
An Aluminum bar is 2 m long at a temperature of 20 degrees Celsius. What will it be at 100 degrees Celsius?
Answer:
5
Step-by-step explanation:
20*5=100
Answer:
10 meters
Step-by-step explanation:
Let at 100 degrees Celsius, the aluminum bar is x m long.
We have been given that aluminum bar is 2 m long at a temperature of 20 degrees Celsius.
Thus, we have the equation
[tex]\frac{2}{20}=\frac{x}{100}[/tex]
Solve the equation for x
[tex]x=\frac{2\times100}{20}\\\\x=10[/tex]
Thus, at 100 degree Celsius, the aluminium bar is 10 meters long.
Which point is on the graph of f(x) = 2.5^x
А. (1, 10)
в. (0, 0)
с. (0, 10)
D. (10, 1)
Answer:
A. (1, 10).
Step-by-step explanation:
I'm going to assume that it is 2*5^x, then
2 * 5^1
= 2 * 5 = 10.
So a point on the grapg is (1, 10).
(0, 1) is on the graph of [tex]f(x)=2.5^{x}[/tex].
What is a graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
Given function
[tex]f(x)=2.5^{x}[/tex]
Drawing this function in a graph we can see that (0, 1) is on the graph.
Hence,
(0, 1) is on the graph of [tex]f(x)=2.5^{x}[/tex].
Find out more information about graph here
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I don’t get this question
This is a right triangle and to solve this you must use Pythagorean theorem:
[tex]a^{2} +b^{2} =c^{2}[/tex]
a and b are the legs (the sides that form a perpendicular/right angle)
c is the hypotenuse (the side opposite the right angle)
In this case...
a = 60
b = x
c = 65
^^^Plug these numbers into the theorem
[tex]60^{2} +x^{2} =65^{2}[/tex]
simplify
3600 + [tex]x^{2}[/tex] = 4225
Now bring 3600 to the right side by subtracting 3600 to both sides (what you do on one side you must do to the other). Since 3600 is being added on the left side, subtraction (the opposite of addition) will cancel it out (make it zero) from the left side and bring it over to the right side.
3600 - 3600 + [tex]x^{2}[/tex] = 4225 - 3600
0 + [tex]x^{2}[/tex] = 625
[tex]x^{2}[/tex] = 625
To remove the square from x take the square root of both sides to get you...
x = √625
x = 25
(option C)
Hope this helped!
Just a girl in love with Shawn Mendes
Complete the solution of the equation. Find the
value of y when x equals -8.
-5x - 5y = 50
Answer: -2 PLEASE GIVE BRAINLIEST
Step-by-step explanation:
Subbing 8 for x
-5(-8)-5y=50
Simplifying
40 + -5y = 50
Solving
40 + -5y = 50
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-40' to each side of the equation.
40 + -40 + -5y = 50 + -40
Combine like terms: 40 + -40 = 0
0 + -5y = 50 + -40
-5y = 50 + -40
Combine like terms: 50 + -40 = 10
-5y = 10
Divide each side by '-5'.
y = -2
Simplifying
y = -2
Convert the radian measure to degrees. (Round to the nearest hundredth when necessary): π/4
A. 45
B. 45π
C. π4
D. 90
Answer:
the degree measure of pie/4 is 45
Step-by-step explanation:
=pie/4
=180/4
=45
The basic formula that need to be recalled is:
Circular Area = π x R²
Circle Circumference = 2 x π x R
where:
R = radius of circle
The area of sector:
[tex]\text{Area of Sector} = \frac{\text{Central Angle}}{2 \pi} \times \text{Area of Circle}[/tex]
The length of arc:
[tex]\text{Length of Arc} = \frac{\text{Central Angle}}{2 \pi} \times \text{Circumference of Circle}[/tex]
Let us now tackle the problem!
This problem is about conversion unit of angles
Remember that :
[tex]\large {\boxed {1 \pi ~ \text{radians} = 180^o} }[/tex]
[tex]\frac{\pi}{4} = \frac{1}{4} \times 180^o = \boxed {45^o}[/tex]
Another Example:
[tex]\frac{\pi}{6} = \frac{1}{6} \times 180^o = \boxed {30^o}[/tex]
[tex]\frac{\pi}{3} = \frac{1}{3} \times 180^o = \boxed {60^o}[/tex]
[tex]\frac{\pi}{2} = \frac{1}{2} \times 180^o = \boxed {90^o}[/tex]
[tex]\frac{3\pi}{2} = \frac{3}{2} \times 180^o = \boxed {270^o}[/tex]
[tex]\frac{3\pi}{4} = \frac{3}{4} \times 180^o = \boxed {135^o}[/tex]
[tex]\frac{4\pi}{3} = \frac{4}{3} \times 180^o = \boxed {240^o}[/tex]
Learn moreCalculate Angle in Triangle : https://brainly.com/question/12438587Periodic Functions and Trigonometry : https://brainly.com/question/9718382Trigonometry Formula : https://brainly.com/question/12668178Answer detailsGrade: College
Subject: Mathematics
Chapter: Trigonometry
Keywords: Sine , Cosine , Tangent , Opposite , Adjacent , Hypotenuse, Circle , Arc , Sector , Area , Radian , Degree , Unit , Conversion
Need help on number 1, 5 and 7
Answer:
1) y = (x + 8)² + 7; 5) y = (x - 6)² + 10; 7) y = (x - 3)² - 4
Step-by-step explanation:
Complete the square in order to figure these out. To complete the square, use the formula [½B]². Each time you do this, you get a perfect trinomial in the form of a product of two monomials [h], then you have to figure out how much more to deduct from or add on to your C they gave you in each exercise [k].
If you are still in need of assistance, do not hesitate to let me know and subscribe to my channel [username: MATHEMATICS WIZARD].
I am joyous to assist you anytime.
The function f(x) = x^2 - 12x + 5 written in vertex form is f(x)=(x-6)^2 - 31. What are the coordinates of the vertex?
(6,31)
(-6,31)
(6,-31)
(-6, -31)
Answer:
(6, - 31)
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
f(x) = (x - 6)² - 31 ← is in vertex form
with vertex = (6, - 31 )
find tan of 45 degrees
Answer:
tan(45°) = 1
Step-by-step explanation:
We know that sin (45°) = √2/2, and cos(45°) = √2/2.
Given that tan(x) = sen(x) / cos(x), we get:
tan(45°) = (√2/2) / (√2/2) = 1
Therefore, tan(45°) = 1
Attached you will find the important angles summary
what is te discontinuity of the function f(x) = the quantity of x squared plus 6x plus 8 all over x plus 4?
Answer:
A hole at x=-4.
Step-by-step explanation:
This is a fraction so we have to worry about division by zero.
The only time we will be dividing by 0 is when x+4 is 0.
Solving the equation
x+4=0 for x:
Subtract 4 on both sides:
x=-4
So there is either a vertical asymptote or a hole at x=-4.
These are the kinds of discontinuities we can have for a rational function.
If there is a hole at x=-4, then x=-4 will make the top zero and can be cancelled out after simplification.
If is is a vertical asymptote, x=-4 will make the top NOT zero.
Let's see what -4 for x in x^2+6x+8 gives us:
(-4)^2+6(-4)+8
16+-24+8
-8+8
0
Top and bottom are 0 when x=-4.
Let's see what happens after simplication.
We are going to factor a^2+bx+c if factorable by finding two numbers that multiply to be c and add up to be b.
So what 2 numbers together multiply to be 8 and add up to be 6.
I hoped you said 4 and 2 because (4)(2)=8 where 4+2=6.
[tex]\frac{x^2+6x+8}{x+4}=\frac{(x+4)(x+2)}{x+4}=x+2[/tex]
We we able to cancel out that factor that was giving us x=-4 is a zero.
Therefore there is a hole at x=-4.
The diagram shows EFG. Which term describes point H?
Answer:
D
Step-by-step explanation:
The line segments drawn from each vertex of the triangle and intersecting at H are the Altitudes of the triangle.
The point H is called the Orthocenter
Answer:
D. Ortho-center.
Step-by-step explanation:
We have been given an image of a triangle. We are asked to find the term that describes point H.
We can see that point H is the point, where, all the altitudes of our given triangle EFF are intersecting.
We know that ortho-center of a triangle is the point, where all altitudes of triangle intersect. Therefore, point H is the ortho-center of our given triangle and option D is the correct choice.