Answers
Answer:
The answer is C
Related Questions
for all values of x , a function f is defined by f(x)=x^2+7x+12 if f(a)=2, what could be the value of a?
Answers
Answer:
a = -2 or a = -5
Step-by-step explanation:
We want [tex]f(a) = a^2 + 7a + 12 = 2[/tex]. We can subtract 2 from both sides of this equation to get [tex]a^2+7a+10=0[/tex]. We can factor this to get that [tex](a+2)(a+5)=0[/tex]. When the product of two numbers is equal to zero, one of the numbers must be equal to zero. This means that either a + 2 = 0, in which case a = -2, or a + 5 = 0, in which case a = -5.
Find the volume of a right circular cone that has a height of 11.4 in and a base with a radius of 5.1 in. Round your answer to the nearest tenth of a cubic inch.
Answers
Answer:
Step-by-step explanation:
h=11.4 in
r=5.1 in
v=3.14*r^2*(h/3)
V=3.14*5.1^2*(11.4/3)=3.14*26.01*3.8=310.35
You throw a ball straight up from a rooftop. The ball misses the rooftop on its way down and eventually strikes the ground. A mathematical model can be used to describe the relationship for the ball's height above the ground, y after x seconds.
Find the quadratic function y=ax^2+bx+c whose graph passes through the given points.
1 -> 339
3 -> 271
4 -> 189
Answers
Answer:
1
Step-by-step explanation:
Need help with geometry.
Answers
Answer:
x = 23
Step-by-step explanation:
m<1 and m<3 will be the same because they are vertical
m<3 and m<5 will be the same (I forgot their relationship)
which means m<5 and m<7 will be the same
which ALSO means that m<1 =7
So you know that m<1 = m<7 (4x -6 = 2x +40)
x = 23
the picture is linked here
Answers
Answer:
A.
Step-by-step explanation:
In a Linear Function, the changes between x and y should remain constant.
A: x increases by 2 while y increases by 2 steadily so it is a linear function.
B: x increases by 1 and then zooms up to increasing in double (2) while y increases by 2 and then zooms up to increasing to more than double (5) so B is not a linear function.
C: x increases by 3, then one-third of 3 (1), then two-third of 3 (2). y decreases by 6, then one-third of 6 (2), then one-third (2) again when it should have decreased by two-third of 6 (4). Notice that the last decrease was different from x.
D: x increases by 6, then one-third of 6 (2), then half of 6 (3). y decreases by 3, then one-third of 3 (1), then two-third of 3 (2) when it should have decreased by half of 3 (1.5). Notice the last decrease was different from x.
Answer:
pick the answer a
Step-by-step explanation:
Can someone please help me if you know! Thank you
Answers
Answer:
D
Step-by-step explanation:
the equation for Josh is 500 + 40x while the equation for Vanessa is only 60x
if josh's account balance is greater than it would be josh > vanessa or vanessa < josh
What is the slope of line M.
What is a?
What is B?
Answers
Answer: A 2,2
Step-by-step explanation: 1 - 1 something
which of the following statement about the point (5,3 and ( 5,-3) is true?
Answers
Answer:
I think it's A
Step-by-step explanation:
A polynomial function has a root of -6 with multiplicity 1, a root of -2 with multiplicity 3, a root of 0 with multiplicity 2 and a root of 4 with multiplicity 3. If the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?
The graph of the function is positive on (-6, -2). The graph of the function is negative on (-∞, 0). The graph of the function is positive on (-2, 4). The graph of the function is negative on (4,∞)
Answers
9514 1404 393
Answer:
(a) The graph of the function is positive on (-6, -2)
Step-by-step explanation:
A function of odd degree and positive leading coefficient will be negative from -∞ to the left-most zero. Here, that zero is -6. The multiplicity of that zeros is odd (1), so the sign changes to positive at that point, and remains positive until the next odd-multiplicity zero, which is -2, with multiplicity 3.
Hence the function is positive on the interval (-6, -2), matching choice A.
Answer:
a
Step-by-step explanation:
PLEASE I NEED HELPPPP
Answers
Answer:
r=3
Step-by-step explanation:
12 times 3 is 36
18 times 3 is 54
25 times 3 is 75
what you are doing is plugging in X and seeing what X is multiplied to get Y
r•x=y
Answer:
I really don't know
which grade math is this Caz bro
Question
20 pts
There are 600 6th grade students who attend Falcon Cove Middle School. 17% of them
believe that Mr. Too Much should be fired for being the silliest teacher they have ever known.
How many 6th graders at Falcon Cove believe Mr. Too Much should be fired?
6th graders at Falcon Cove believe Mr. Too Much should be fired.
Question 2
20 pt
Answers
Answer:
u can ask the tutor and he or she will help u in real time and explain
what is 494 divided by 6.5
Answers
Answer:
76
Step-by-step explanation:
Answer:
494 divided by 6.5 =76
Step-by-step explanation:
Shahwhehehehdjdjendbxbsnenenen
Answers
Answer:
Shahwhehehehdjdjendbxbsnenenen
14) The value of y varies directly with x, and y = 3.6 when x = 6. Find y when x= 48.
Please and thank you. I needed now. Please help
Answers
Answer: y = 28.8
Step-by-step explanation:
By using ratios
if the values vary with each other, then they will increase the same amount. 6x8 is 48. So 3.6 x 8 is your answer, 28.8
A ladder 20 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per second. Find the rate at which the angle between the ladder and the wall of the house is changing when the base of the ladder is 16 feet from the wall.
Answers
Answer:
0.17 °/s
Step-by-step explanation:
Since the ladder is leaning against the wall and has a length, L and is at a distance, D from the wall. If θ is the angle between the ladder and the wall, then sinθ = D/L.
We differentiate the above expression with respect to time to have
dsinθ/dt = d(D/L)/dt
cosθdθ/dt = (1/L)dD/dt
dθ/dt = (1/Lcosθ)dD/dt where dD/dt = rate at which the ladder is being pulled away from the wall = 2 ft/s and dθ/dt = rate at which angle between wall and ladder is increasing.
We now find dθ/dt when D = 16 ft, dD/dt = + 2 ft/s, and L = 20 ft
We know from trigonometric ratios, sin²θ + cos²θ = 1. So, cosθ = √(1 - sin²θ) = √[1 - (D/L)²]
dθ/dt = (1/Lcosθ)dD/dt
dθ/dt = (1/L√[1 - (D/L)²])dD/dt
dθ/dt = (1/√[L² - D²])dD/dt
Substituting the values of the variables, we have
dθ/dt = (1/√[20² - 16²]) 2 ft/s
dθ/dt = (1/√[400 - 256]) 2 ft/s
dθ/dt = (1/√144) 2 ft/s
dθ/dt = (1/12) 2 ft/s
dθ/dt = 1/6 °/s
dθ/dt = 0.17 °/s
what is the length of rs?
Answers
Answer:
SR=15units
‹RTQ=90° since ‹RTQ and ‹RTS are supplementary
Given that ‹RTQ is a right angle then RTQ is a right-angled triangle making RQ the hypotenuse
With that knowledge we calculate RT using Pythagorean theorem
RT=√(20)²-(16)²
RT=√400-256
RT=√144=12units
Now for triangle RST, SR is the hypotenuse and should have the longest length whose adjacent,ST should also sum up with 16 to give a number which when combined will give the square root of the sum of the squares of RQ and SR
Plug in 9 for ST and SR becomes
√(12)²+(9)²=√144+81=√225=15 units
This is true because SQ=16+9=25 units
and using Triangle RSQ,
SQ=√(20)²+(15)²=√400+225=√625=25 units
can u pls help me with this question
Answers
Answer:
[tex]\frac{1}{8}[/tex]
Step-by-step explanation:
We know that the artist can complete [tex]\frac{1}{4}[/tex] of a painting in 2 weeks. So, we just have to find half of [tex]\frac{1}{4}[/tex] to find how much of a painting the artist can do in a week, which is [tex]\frac{1}{8}[/tex] because half of [tex]\frac{1}{4}[/tex] is [tex]\frac{1}{8}[/tex].
Hope this helps! :)
Which of the sets of ordered pairs represents a function? (4 points)
A = {(-5,5), (-2, 2), (2, -2), (5, -5)}
B = {(4,2), (3,-2), (9,4), (11, -3)}
Only A
Only B
Ο Ο Ο
Both A and B
Neither A nor B
Answers
They all have different values for domain, and therefore are functions
Answer:
A if i'm not mistaking
Step-by-step explanation:
4 × 22 + 16 ÷ 4 - (4.9 + 5.5)
Answers
Answer:
81.6
Step-by-step explanation:
4 × 22 + 16 ÷ 4 - (4.9 + 5.5)
88 + 4 - (10.4)
81.6
answer this correctly please
Answers
Answer:
8x-25
Step-by-step explanation:
Y=-1/4x +9 what is the slope and y - intercept
Answers
Answer:
The slope is -1/4 and the y intercept is at (0, 9)
Step-by-step explanation:
In the equation y = mx + b, m is the slope and b is the y intercept.
Since -1/4 is the coefficient to x in the equation, the slope is -1/4.
Since there is a +9 at the end of the equation, the y intercept is (0, 9).
So, the slope is -1/4 and the y intercept is at (0, 9)
Please!!!!! help me fill the blanks. I really need it!!! It due tomorrow!!!!
Answers
Answer:
The first blank which is in the first row would be 9
The second blank under the 5 is 100
The third blank below the 8 is 160
And the last blank is 240
Step-by-step explanation:
It you do 60 divided by 3, it would be 20, meaning each sweater costs $20.
Answer:
5 shirts=100. 8 shirts=160. 12 shirts.=240. 180$=9
Step-by-step explanation:
1 sweatshirt is 20. 60 divided by 3.
multiply 20 by the sweatshirt numbers for answers
HELP ME WITH THIS. FOR 10 POINTS
Answers
Answer: B. 49 1 hour
Step-by-step explanation: hope this helps
Answer:
49 miles for 1 hour
Step-by-step explanation:
x axis is for hours, y axis is for miles the y axis is up to 49, and x is to 1 so it is B.
a bow bear could watch 44 in 4 seconds at this rate how far can a brown bear run in 20 seconds
Answers
Answer:
111 is a great place to be your friend
Step-by-step explanation:
I am not it to 3rd or 3rd to be friends
Answer:
220
Step-by-step explanation:
44 divided by 4 = 11
11 times 20 = 220 so that's the answer
BRAINLIEST PLEASE
The domain of function f(x) is the set of all integers from 0 to 15, and the range of f(x) is the set of all multiples of 5 from 0 to 75. Part A: Which of the following points might be on the graph of(f(x)? O (5, 1) 0 (7, 15) 0 (10, 80) (20, 10) Part B: Which of the following statements must be false about f(x)? Select all that apply. f(0) = 0 $(2) = 1 O O O O O. f(5) = 5 Of(10) = 75 of(15) = 100
Answers
Answer:
pt1 = d and pt 2= c and d
Step-by-step explanation:
Answer:
I know for fact part A is correct but I’m iyffy abt part B
Step-by-step explanation:
Hope it helps
Jordan bought an all-in-one printer that regularly sells for $249.99 at the markdown rate of 32%.
Answers
Answer: 167
Step-by-step explanation: 249.99 - 32% is 167
10)
3
7
(Click on the picture)
Answers
Answer:
What’s the questio???
Step-by-step explanation:
An example of statistical inference is a. a population mean b. hypothesis testing c. calculating the size of a sample d. descriptive statistics
Answers
Answer:
B
Step-by-step explanation:
Statistical inference is the process of making use of analytics to determine the characteristics of a population using its sample.
The two types of statistical inference are:
Hypothesis testing. Confidence interval estimation.What is the value of x?
x =
( number only )
Answers
Answer:
9
Step-by-step explanation:
90+(9x5)+9= 90+
At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. What is the probability that a randomly selected student studies for a test and gets a B or higher?
0.08
0.11
0.33
0.55
Answers
Answer:
.33
Step-by-step explanation: