PLEASE HELPPP. Or explain what the question is even asking im so confused.
Answers
Step-by-step explanation:
f(x) = y
so f(4.999) = -5 when x = 4.999
f(5)= undefined because open circles means > or < with out the line underneath that means equal to
f(5.0001)= 7 when x=5.0001
f(9)= 7 when x=9 because the closed circle means ≥ or ≤ or equal to
Answer:
see attached
The function in the graph is:f(x)= -6, when x= [-9, 2)f(x)= -5, when x= [2, 5)f(x)= 7, when x= (5, 9]Therefore,f(4.999)= -5, f(5)= undefined,f(5, 0001)= 7,f(9)= 7
Related Questions
x^2 + 20x + 28 = 9 find the graphing/vertex form
Answers
Answer: [tex](x+10)^2+119=0[/tex]
Step-by-step explanation:
For a quadratic equation, the vertex form is given by : [tex]y=a(x-h)^2+k[/tex], where (h, k) is the vertex.
The given quadratic equation: [tex]x^2 + 20x + 28 = 9[/tex]
Subtract 9 from both sides
[tex]=x^2+20x+19=0[/tex]
compare this to [tex]x^2+bx=c[/tex], and add [tex](\frac{b}{2})^2[/tex] both sides
b= 20
[tex]x^2+20+100+19=-100[/tex] [(b/2)²=20/2=10]
[tex]\Rightarrow\ x^2+2(x)(10)+10^2+119=0[/tex]
[tex]\Rightarrow\ (x+10)^2+119=0\ \ \ [\because\ (a+b)^2=a^2+b^2+2ab][/tex]
So, the vertex form : [tex](x+10)^2+119=0[/tex]
Please may someone answer it,
WORTH 81 POINTS!!!
Answers
Answer:
[tex]\boxed{V = 1436.8 cm^3}[/tex]
Step-by-step explanation:
Volume of sphere = [tex]\frac{4}{3} \pi r^3[/tex]
Where r = 7 cm
Volume of Sphere = [tex]\frac{4}{3} (3.14)(7)^3[/tex]
V = [tex]\frac{4}{3} (3.14)(343)[/tex]
V = 4310/3
V = 1436.8 cm³
Answer:
1436.8 cm^3Solution,
Radius= 7 cm
Volume of sphere:
[tex] \frac{4}{3} \pi \: {r}^{3} \\ = \frac{4}{3} \times 3.14 \times {7}^{3} \\ = \frac{4}{3} \times 3.14 \times 343 \\ = 1436.8 \: {cm}^{3} [/tex]
Hope this helps...
Good luck on your assignment...
Answer ASAP In the given diagram, ∠4 = 45°, ∠5 = 135° and ∠10 = ∠11 Part A: Solve for the values of the remaining angles. Show all of your work. Part B: Use complete sentences to describe the angle relationship between the following angle pairs: 1. ∠4 and ∠1 2. ∠7 and ∠5 3. ∠9 and ∠10
Answers
Answer:
A) ∠9 = ∠10 = ∠11 = ∠12 = 90°
∠2 = ∠3 = ∠5 = ∠8 = 135°
∠1 = ∠4 = ∠6 = ∠7 = 45°
B) 1. ∠4 and ∠1 -> vertical angles
2. ∠7 and ∠5 -> supplementary
3. ∠9 and ∠10 -> supplementary
Step-by-step explanation:
Data
∠4 = 45°∠5 = 135°∠10 = ∠11The following are vertical angles, so they are congruent:
∠1 ≅ ∠4
∠3 ≅ ∠2
∠11 ≅ ∠9
∠10 ≅ ∠12
∠7 ≅ ∠6
∠5 ≅ ∠8
From here and data, it is deduced that
∠11 ≅ ∠9 ≅ ∠10 ≅ ∠12
From the picture, the addition of them is equal to 360°, then:
∠11 + ∠9 + ∠10 + ∠12 = 360°
4*∠11 = 360°
∠11 = 360°/4
∠11 = 90° = ∠10 = ∠9 = ∠12
∠2 and ∠4 are supplementary, then:
∠2 + ∠4 = 180°
∠2 = 180° - 45°
∠2 = 135°
∠7 and ∠5 are supplementary, then:
∠7 + ∠5 = 180°
∠7 = 180° - 135°
∠7 = 45°
Answer:
Started learning this today and this made a lot easier
Jacob is painting the walls of his new tiny house. If 3⁄4 of a can of paint is enough to paint 1 / 8of the walls, how much paint does Jacob need to paint all of the walls?
Answers
Answer:
6 cans
Step-by-step explanation:
I used Improper Fractions to solve this question.
3/4 is enough to paint 1/8
Therefore we can multiply 3 by 8 to calculate how much paint is required for the whole wall.
3 * 8 = 24
24/4 = 6
In how many ways can a committee of size 5 be formed from 11 people? Assume that, when people are chosen for a committee, the order of the choices does
not matter.
Answers
Answer:
462 ways
Step-by-step explanation:
The functions f(x) and g(x) are shown on the graph.
Rx) = x²
What is g(x)?
Answers
Therefore f(x) = - x^2 (NOT IN PARENTHESIS that would be a reflection on the y axis)
It’s a shift 4 y values down therefore
g(x) = - x^2 - 4
state whether it represents a function
Answers
Answer:
See below.
Step-by-step explanation:
To be a function the graph must pass the vertical line test. If any of the vertical lines which can be drawn intersects the graph more than once then it's not function.
So Graph 1 is not a function because a vertical line passes through the 2 points in quadrant 1, whereas Graph 2 is a function because any vertical line you can draw only passes through the graph once.
Graph 3 - not a function.
Graph 4 - not a function.
Graph 5 - not a function.
Graph 6 is a function.
HELP NEEDED PLS HELP! THANK YOU Use the fundamental theorem of algebra to state all the possible roots of the function f(x)=2x^3+3x^2-4x-12 Can someone please show me how to do it
Answers
Answer:
x=2 (−∞,∞)
Step-by-step explanation:
The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x
Hope this helps (sorry if it's confusing)
Answer:
x = 1.71282
Step-by-step explanation:
2x^3+3x^2-4x-12
2 x³ + 3 x² - 4x - 12 = 0
x = 1.71282
see attachment.
On two investments totaling $13,500, Peter lost 3% on one and earned 5 % on the other. If his net annual receipts were $319, how much was each investment?
Answers
y = amount of 5% gain investment
x + y = 13,500 {the two investments total $13,500}
-0.03x + 0.05y = 319 {3% loss on one and 5% gain on other, receipt is $319}
x = -y + 13,500 {subtracted y from each side of first equation}
-0.03(-y + 13,500) + 0.05y = 319 {substituted (-y + 13,500), in for x, into second equation}
0.03y - 405 + 0.05 = 319 {used distributive property}
0.08y - 405 = 319 {combined like terms}
0.08y = 724 {added 405 to each side}
y = 9050 {divided by 0.08}
x = -y + 13,500 {from equation above}
x = -9050 + 13,500 {substituted 9050 in for y}
x = 4450 {added}
The 3% loss investment was $4450
The 5% gain investment was $9050
Help Please I'm Out Of Time ;(
A wooden roller coaster at a theme park has a height restriction: passengers must be at least 45 inches tall.
A. Write an inequality to represent the height restriction.
B. Using complete sentences, describe how to graph your inequality on a number line.
Answers
Answer:
Hello There!
~~~~~~~~~~~~~~~~~~~~`
[tex]h \geq 48 inches tall[/tex]
In order to ride on the ride an individual must be at least 48 inches tall.
This means that the individual must be equal to 48 inches tall.
[tex]h = 48[/tex]
and the individual could be greater than 48 inches tall.
[tex]h > 48[/tex]
So the individual could be greater than and equal to 48 inches tall.
[tex]h \geq 48[/tex]
Hope this helped you. Brainliest would be nice!
pls answer this ill mark as brainliast
Answers
Answer:
A decrease of 9.2% is 1 - 0.092 = 0.908. 0.908 * 721.45 = 655.08.
Answer:
721.45 x 9.2% = 721.45 x 0.092 = 66.37
so 66.37 is the discount
721.45 - 66.37 = 655.08
So 655.08 is the discounted price
655.08 is the answer
Hope this helps
Step-by-step explanation:
In △EKL, m∠K = 90º, m∠E = 25º, EK = 3 cm, KH - altitude. Find EH.
Answers
Answer:
EH = 3.31
Step-by-step explanation:
We have been given a right angle triangle EKL. As KH has been given as the altitude (perpendicular) of the right angled triangle, and K is the right angle, we can say that EK is tthe base of the triangle and EH is the only side lleft, which is the hypotenuse of the triangle.
Where,
EK = Base = 3
KH = perpendicular altitude
EH = Hypotenuse
m<K = 90
m<E = 25
We know that
cosθ = Base/ Hypotenuse
cos 25 = 3/ EH
EH = 3/cos25
EH = 3.31
Perpendicular alitutude can also be calculated by using the formula for tanθ.
A recent survey found that 65% of high school students were currently enrolled in a math class,43% were currently enrolled in a science class,and 13% were enrolled in both a math and a science class. Suppose a high school student who is enrolled in a math class is selected at random. What is the probability that the student is also enrolled in a science class?
Answers
Answer: 0.20
Step-by-step explanation:
As per given :
P(student enrolled in a math class ) = 65% = 0.65
P( student enrolled in a science class) = 43%= 0.43
P( student enrolled in both ) = 13% = 0.13
Formula of conditional probability :
[tex]P(A|B)=\dfrac{P(A\text{ and }B)}{P(B)}[/tex]
Using the above formula,
The probability that the student is enrolled in a science class given that he is enrolled in maths class :
[tex]P(\text{science}|\text{math})=\dfrac{P(\text{science and maths})}{P(\text{math})}\\\\=\dfrac{0.13}{0.65}\\\\=\dfrac{13}{65}\\\\=\dfrac{1}{5}=0.20[/tex]
Hence, the probability that the student is also enrolled in a science class = 0.20 .
Dan must choose a shirt, a pair of pants, and a cap for today's outfit. He has 2 shirts, 2 pairs of pants, and 3 caps to choose from. How many different outfits can he make?
Answers
Answer:
12 different outfits
Step-by-step explanation:
2 x 2 x 3 = 12 outfits.
Answer:
12
Step-by-step explanation:
He has 2 possibilities for a shirt, 2 possibilities for a pant, and 3 possibilities for a cap. You just multiply them together:
2 * 2 * 3 = 12 outfits
During the recent recession, Bob's home value dropped to only $175,000. Since then the economy has turned around and the market is improving at a rate of 4.5% annually. At this rate, how much will Bob's home be worth 12 years after the market started improving? And what equation did you use?
Answers
Answer:
Bob's home will worth $296,779.25 after 12 years.
Equation used is [tex]FV = $175,000( 1 + 4.5/100)^(12)\\[/tex]
Step-by-step explanation:
Current value of Bob's house =[tex]FV = $175,000( 1 + 4.5/100)^12\\FV = $175,000( (100+ 4.5)/100)^12\\FV = $175,000( (104.5)/100)^12\\FV = $296,779.25[/tex]
market is improving at 4.5% annually.
This, means that the value of house gets appreciated by 4.5% each year from its previous year value.
This is a problem of compound interest formula
[tex]FV = PV(1+r/100)^n[/tex]
where PV is the present value of any thing
FV is the future value
r is the annual rate of interest
t is the time in number of year for which rate is applicable.
_____________________________________
Given
PV = $175,000.
r = 4.5%
t = 12 years
Value after 12 year will be given by
[tex]FV = $175,000( 1 + 4.5/100)^(12)\\FV = $175,000( (100+ 4.5)/100)^(12)\\FV = $175,000( (104.5)/100)^(12)\\FV = $296,779.25[/tex]
Thus, Bob's home will worth $296,779.25 after 12 years.
Equation used is [tex]FV = $175,000( 1 + 4.5/100)^(12)\\[/tex]
give your answer as a mixed number
4 3/7 - 2 5/7
get brainliest urgent plz help
Answers
Answer:
[tex]1\frac{5}{7}[/tex]
Step-by-step explanation:
[tex]4\frac{3}{7} -2\frac{5}{7}[/tex]
Step 1. Simplify left side 4*7+3 , Right Side 2*7+5
[tex]=\frac{31}{7} -\frac{19}{7} = \frac{12}{7}[/tex]
Step 2. Re-write 12/7 as mixed number
[tex]\frac{12}{7} = 1\frac{5}{7}[/tex]
What is the surface area of a sphere with a radius of 11 units?
A. 13317 units2
B. 3637 units2
C. 7267 units2
D. 48470 units2
Answers
Answer:
Step-by-step explanation:
The surface area of a sphere with radius r is given by
S = 4 pi r^2
for a radius of 11 units,
S = 4 pi 11^2 = 484 pi = 1520.5 sq. units
This does not correspond to any of the answers.
Please check question.
Answer:
484[tex]\pi[/tex]
Step-by-step explanation:
Surface Area of Sphere Formula: 4[tex]\pi[/tex]r[tex]r^{2}[/tex]
When you plug it in it is 4[tex]\pi[/tex][tex]11^2[/tex]
Then you would get 484[tex]\pi[/tex]
witch expression is equivalent to 10-8
Answers
Answer:
2
Step-by-step explanation:
=> 10-8
=> 2 (Equivalent Expression)
What is the value of Fraction 1 over 2x3 + 3.4y when x = 2 and y = 5?
18
20
21
37
Answers
Answer:
C.21
Step-by-step explanation:
The value of 1/ (2x³ + 3.4y) is 1/33.
What is Fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
Fraction = 1/ (2x³ + 3.4y)
We have the value x= 2 and y=5.
So, 1/ (2x³ + 3.4y)
= 1/ (2(2)³ + 3.4(5))
= 1/ (2(8) + 17)
= 1/ (16+17)
= 1/ 33
Hence, the value is 1/33.
Learn more about Fraction here:
https://brainly.com/question/10354322
#SPJ6
Pls help C: Summer Homework (ASAP)
Answers
Answer:
3/2f = 2e
Step-by-step explanation:
The equation is Written has this (3/2f = 2e)
Answer:
[tex]\frac{2}{3} f=2e[/tex]
Step-by-step explanation:
[tex]\frac{2}{3} *9=6[/tex] ~ this is an example of the answer being used to be multiplied by [tex]f[/tex] to get the result which is listed through [tex]e[/tex]. This example is Batch B, cups of flour was 9. 9 multiplied by [tex]\frac{2}{3}[/tex] will lead us to 6 which is the number of eggs used in Batch B.
Hope this helps!
20 points brainlist thanks
What is the distance from (−2, 4) to (0, −6)? Round your answer to the nearest hundredth.
9.23
10.20
10.98
11.34
please explain how you got the awnser im having a hard time
Answers
Answer:
The answer Is 10.20
Step-by-step explanation:
d = \/(0-(-2))² + (-6-4)²
d = \/(0+2)² + (-10)²
d = \/(2² + 100)
d = \/(4+100)
d = \/104
d ~ 10,20
Step-by-step explanation:
by using distance formula it is easily calculated
[tex]\frac{y}{23}[/tex]− 226 = –207
y = _______
Answers
Answer:
y=437
Step-by-step explanation:
Move all terms not containing y to the right side of the equation.
Add 226 to both sides of the equation.
y/23=−207+226
Add −207 and 226.
y/23=19
Multiply both sides of the equation by 23.
23⋅y/23=23⋅19
Simplify both sides of the equation.
Cancel the common factor of 23.
cancel out the common factors
23⋅y23=23⋅19
Rewrite the expression.
y=23⋅19
Multiply 23 by 19.
y=437
dont forget to give me brainliest
plzzzzz answer this question about density mass and volume!!!!!!!!!
Answers
Answer:
13.896 kg
Step-by-step explanation:
You can find the mass of the bar by first finding the volume.
V = BH
where B = area of the base (the trapezium), and
H = height (distance trapezium between bases)
The area of a trapezium is
A = (b1 + b2)h/2
where b1 and b2 are the lengths of the bases of the trapezium (the parallel sides), and
h = the altitude of the trapezium (distance between the bases of the trapezium)
V = (b1 + b2)h/2 * H
V = (12 cm + 6 cm)(5 cm)/2 * 16 cm
V = 720 cm^3
The volume of the bar is 720 cm^3.
Now we use the density and the volume to find the mass.
density = mass/volume
mass = density * volume
mass = 19.3 g/cm^3 * 720 cm^3
mass = 13,896 g
Now we convert grams into kilograms.
1 kg = 1000 g
mass = 13,896 g * (1 kg)/(1000 g)
mass = 13.896 kg
Answer: 1.3896 kg
PLEASE HELP!!!
What is the distance, in units, between P=(−6,8) and Q=(9,8)?
Answers
Answer:
15
Step-by-step explanation:
Angelo cuts a piece of wood for a project. The first cut is shown and can be represented by the equation y - 5x-1. The second cut needs to be parallel to the first. It will pass through the point (0,6). Identify the equation that
represents Angelo's second cut.
Answers
Answer:
The correct option is A
A) y = (1/5)x + 6
Step-by-step explanation:
The equation of the first cut shown in the graph is:
y = (1/5)x - 1
We know that a general form of linear equation is given as:
y = mx + c
Comparing both equations, we get that the slope m = 1/5
As the second cut is parallel to the first cut, it will have the same slope, that is m = 1/5
Substitute it in the general linear equation
y = mx + c
y = (1/5)x + c
We know that this equation passes through the point (0,6), substitute it in the above equation>
6 = (1/5)(0) + c
c = 6
The equation for second cut be found by using m = 1/5 and c = 6
y = mx + c
y = (1/5)x + 6
Ever since Renata moved to her new home, she's been keeping track of the height of the tree outside her window. H represents the height of the tree (in centimeters), t years since Renata moved in. H =210 + 33t How fast does the tree grow?
Answers
Answer:
The tree grows 33cm per year.
Step-by-step explanation:
Help pleaseeeeeeeeeeeeeeeeeeeeeee
Answers
Answer:
The answer is 3 mark as brainliest
Step-by-step explanation:
3 *3-4*4+2*5
9-16+10
9-6=
3
Answer:
Hey there!
3a-4b+2c
3(3)-4(4)+2(5)
9-16+10
3
Your answer would be 3.
Hope this helps :)
Find the slope of the line on the graph. Write your answer as a fraction or a whole number, but a mixer number or decimal .
Answers
Answer:
m = -1/2
Step-by-step explanation:
Slope Formula: [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Simply plug in 2 coordinates into the slope formula to find our slope m:
(-8, 0) x-int
(0, -4) y-int
m = (0 + 4)(-8 - 0)
m = 4/-8
m = -1/2
Find the common difference for the sequence shown.
56, 49, 42, 35, ...
0-12
0-7
07
Answers
To find the common difference, subtract all the numbers in order.
56 - 49 = 7
49 - 42 = 7
42 - 35 = 7
Therefore, common difference is 7.
Best of Luck!
Answer:
The answer is -7
(got this answer right on the lesson)
Step-by-step explanation:
What is the length of the y-component of the vector shown below? A. 77.3 B. 15.0 C. 20.7 D. 21.4
Answers
Answer:
[tex]y = 20.7[/tex]
Step-by-step explanation:
Given
The figure above
Required
Calculate the y component
Represent the y component with y, the resultant vector with s and the angle with [tex]\theta[/tex]
The y component of a vector (as it is, in this case) is calculated as thus;
[tex]sin\theta = \frac{y}{s}[/tex]
[tex]Where\ \theta = 15\\ s = 80[/tex]
Substituting these values in the equation
[tex]sin\theta = \frac{y}{s}[/tex] becomes
[tex]sin\ 15= \frac{y}{80}[/tex]
Multiply both sides by 80
[tex]80 * sin\ 15= \frac{y}{80} * 80[/tex]
[tex]80 * sin\ 15= y[/tex]
[tex]80 * 0.2588190451= y[/tex]
[tex]20.705523608 = y[/tex]
[tex]y = 20.705523608[/tex]
[tex]y = 20.7[/tex] (Approximated)