Answer:
r < 15.5
Step-by-step explanation:
r - 4.5 < 11
r (- 4.5 + 4.5) < 11 + 4.5
r < 15.5
MEASUREMENT AND GRAPHS
Introduction to elapsed time
Pablo started baking at 7:46 AM and finished at 8:25 AM.
How long did it take him? Give your answer in minutes.
X Х
6
?
solv this for T
1/5t + 2- ( ) = 17- ( ) 1/5t = ( ) × 1/5t= ( ) t =
Answer:
t = 5?
Step-by-step explanation:
During a bean flipping experiment Fiona modeled her data using the function
f(t) = 4.127 (1.468) and Karl modeled his data with the function
k(t) = 0.897 (1.992) where t represents the number of trials and f(t) represents
the number of beans.
At what number of trials would Fiona and Karl have the same number of beans?
A.3
B4
C.5
0.6
Answer:
C.5
Step-by-step explanation:
Fiona:
After t trials, she would have:
[tex]f(t) = 4.127(1.468)^t[/tex]
Karl:
After t trials, he would have:
[tex]k(t) = 0.897(1.992)^t[/tex]
At what number of trials would Fiona and Karl have the same number of beans?
This is t for which:
[tex]f(t) = k(t)[/tex]
So
[tex]4.127(1.468)^t = 0.897(1.992)^t[/tex]
[tex]0.897(1.992)^t = 4.127(1.468)^t[/tex]
[tex]\frac{(1.992)^t}{(1.468)^t} = \frac{4.127}{0.897}[/tex]
[tex](\frac{1.992}{1.468})^t = 4.6[/tex]
[tex](1.35695)^t = 4.6[/tex]
[tex]\log{(1.35695)^t} = \log{4.6}[/tex]
[tex]t\log{1.35695} = \log{4.6}[/tex]
[tex]t = \frac{\log{4.6}}{\log{1.35695}}[/tex]
[tex]t = 5[/tex]
So the correct answer is 5 trials, option C.
A cupcake store manager believes that half of the cupcakes sold are vanilla and that the other half is equally divided between chocolate and funfetti. If the manager's belief is correct and 400 cupcakes are sold, how many would you expect to be funfetti
400 cupcakes in total
200 would be vanilla
so 100 would be chocolate and the remaining 100 should be funfetti
A: 100
if x + 1/x = 2. find the value of x³ + 1/x³.
Answer:
2
Step-by-step explanation:
x + 1/x = 2
x + 1 = 2x
x = 1
x³ + 1/x³
1³ + 1/1³.
1 + 1/1 = 1 + 1 = 2
HELPPP 21 POINTSS
MARKS BRAINLEST IF CORRECT
Answer:
3 or the 3rd one from the top
Step-by-step explanation:
Since after 8 minutes it wasn't cooked enough he put it in for more time. So that means the arrow should be pointing to more time. But the circle isn't filled in because it is more than 8 minutes.
hi! i’ll give brainliest please help
Answer:
Water flow becomes slower when it river bends
Step-by-step explanation:
Deposition occurs when a river loses energy.
Answer:
Once the river bends the flow of water reduces and sediment begins to build up. so I would say A
According to recent studies, in a random sample of 24 employed adults, you would expect that about 2 of them would be using an illegal drug. In a random sample of 24 unemployed adults, how many illegal drug users would you expect to find
Answer:
this cannot be determined
Step-by-step explanation:
not enough info provided
The probability it will rain in the next two weeks is 1/9 for this week and 1/5 for next week. What is the probability that it will rain this week and then rain next week?
Answer: 1/45
Step-by-step explanation:
The probability that it will rain this week and then rain next week will be the multiplication of the both the probability that it'll rain this week and probability that it'll rain next week.
Therefore, the answer will be:
= P(rain this week) × P(rain next week)
= 1/9 × 1/5
= 1/45
Therefore, the answer is 1/45.
PLSSS HELP 50 POINTS AND BRAINLIEST IF U R RIGHT HELP PLSSSSS
2. What is the product of 1/2x-1/4 and 5x^2-2x+6?
(a) Show your work.
(b) Is the product of 1/2x-1/4 and 5x^2-2x+6? equal to the product of 1/4x-1/2 and 5x^2-2x+6? ? Explain your answer
Answer:
1/2x - 1/4 * 5x^2 - 2x + 6 = 116/4 = 29
A. Work : 1/2x = 2/4x - 1/4 = 1/4x
5x^2 = 25 - 2x = 23x + 6 = 29x
1/4x * 29x = 1/4x * 116/4x = 116/4x = 29
B. 1/4x - 1/2 * 5x2 - 2x + 6 = -29
No, it is not equal to the product up above
Because its basically the same thing but the 1/2 and 1/4x
are switched which makes it negative
Hope it helps
Need help with these 1 questions please show work !!!! Due soon !!
Answer:
1. is 29.3in^3
2. 268.08
4/3pi(r)^3
4/3pi(4)^3
= 268.08
Rounded to the nearest tenth is 268.1
20% of which number is 30?
A. 1.5
B. 6
c. 15
D. 150
E. 600
D. 150 is the correct answer
A triangle PQR is right angled at R, with PQ=80cm and R=60cm. find QR?
Step by step PLS PYTHAGORUS THEOREM
Answer:
Solution given:
A triangle PQR is right angled at R, with hypotenuse{h}PQ=80cm
and
base[b]PR=60cm.
perpendicular [P]= QR
by using Pythagoras law
h²=p²+b²
80²=QR²+60²
QR²=80²-60²
QR=[tex]\sqrt{2800}[/tex]
QR=20[tex]\sqrt{7}[/tex]=52.9=53cm
QR=53cm.
If school ended today what is the first thing you'd do?
Answer:
hhehehehheh
Step-by-step explanation:
1.Go to home
2.Plug in the computer
3. Play all trigger games
3x(2-2x+6) HURRY PLEASE
Answer:
-6x^2+24x
Step-by-step explanation:
3x(2-2x+6)
We have to distribute 3x to everything in the parenthesis.
3x(2)+3x(-2x)+3x(6)
6x-6x^2+18x
-6x^2+24x
help help help help need to pass this
Answer:
0.25
Step-by-step explanation:
t/4+16=17
t=(17-16)/4
=0.25
how do i find the unit rate?
Answer:hgfjiughhitfi
Step-by-step explanation:
R5ztrxtfchhgtu
Mrs. Hector is renovating a house. The living room is a rectangle 10 feet long and 15 1/2 feet wide. Mrs. Hector wants to put in new flooring in the living room. Flooring is sold by the square foot for $6.25. How much flooring does she need and how much will it cost? Area = length x width
Answer:
Flooring: 155 | Cost: 968.75
Step-by-step explanation:
10 x 15 1/2 = 155
then multiply the 155 with the 6.25
you will get 968.75
so the cost is $968.75
Please help me :). It would be gladly appreciated:)
Answer:
3rd option
Step-by-step explanation:
The range are the values covered on the y- axis
The lowest value is - 2
The highest value is 6
Both points have a solid circle on them indicating y can equal those values
range { y : - 2 ≤ y ≤ 6 }
A dance group from Round Rock High School is fundraising to travel to a competition. The competition entry fee is only $300 for the entire group, but plane tickets will cost $100 per students. If there are 30 students how much will each student have to fundraise?
Answer:
$30.00 i think?
Step-by-step explanation:
$100 x 30 = $30.00
What are the lengths of the sides of this equilateral triangle
I GIVE BRAIN LEST Which of the following is true about an
estuary?
It is all fresh water.
It is all salty water.
It has very few organisms.
It is affected by tides.
==========================================================
Explanation:
An estuary is where a river pours into the ocean. So that means fresh water mixes with salt water here. This allows us to rule out choices A and B.
According to NOAA, their site says "Estuaries are one of the most productive ecosystems in the world, so there is a great diversity of animals and plants that live there". In other words, a lot of plants and animals live here, so we can rule out choice C.
Choice D is the answer because tides do affect estuaries. This is simply because the ocean is pretty much right next to it, or attached to it. So it's expected that a high tide would cause the water level in an estuary to increase.
Answer:
it is affected by tides that's the conclusion I have come to
Simplify the expression. 16m - 3/5 + 4m - 2 2/5 + 4
A 20m-3
B 20m+1
C 12m+1
D 12m-3
Answer:
it is either B or C
Step-by-step explanation:
Combine Like Terms
This is second one! Its easy......pls I need all answers.....
Answer:
4. - 3
5. 5 / 11
6. - 2
Step-by-step explanation:
4.
9 / x = - 3
x = 9 / - 3
x = - 3
5.
11 = 5 / x
x = 5 / 11
6.
- 2 = 4 / x
x = 4 / - 2
x = - 2
what is the volume in cubic cm of a cylinder with a height of 16 cm and a base radius of 3cm to the nearest tenths place
Step-by-step explanation:
[tex]\pi {(3)}^{2} (16) \\ \pi(9)(16) \\ 144\pi = 452.4 {cm}^{3} [/tex]
I need help
A
B
C
D
?
Answer:
Step-by-step explanation:
i say a
Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) – C(x). Which
expression represents P(x), if R(x) = 2x4 – 3.2° + 2x – 1 and C(x) = x4 – x2 + 2x + 3?
Answer:
x^4 - 2.2x^2 - 4
Step-by-step explanation:
Given the following
R(x) = 2x4 – 3.2x^2 + 2x – 1 and C(x) = x4 – x2 + 2x + 3
Required
P(x)
Since P(x) = R(x) – C(x).
P(x) = 2x4 – 3.2x^2 + 2x – 1 – (x^4 – x^2 + 2x + 3).
Expand
P(x) = 2x4 – 3.2x^2 + 2x – 1 – x^4 + x^2 - 2x - 3
P(x) = 2x4 - x^4 - 3.2x^2 + x^2 + 2x - 2x -1 - 3
P(x) = x^4 - 2.2x^2 - 4
Hence the profit function is x^4 - 2.2x^2 - 4
PLEASE I NEED HELP Lisa made a chocolate milkshake in the blender for her daughter. The milkshake occupies just a little more than 75 cubic inches of space in the blender pitcher. When serving the milkshake to her daughter, she has three glasses to choose from. Determine whether or not each of the three classes is large enough to contain all of the chocolate milkshake that Lisa made for her daughter. Use 3.14 to approximate .
Glass A with a height of 2.1 inches and a diameter of 5 inches is _____
to contain the entire chocolate milkshake.
Glass B with a height of 2.7 inches and a radius of 4.6 inches is_____
to contain the entire chocolate milkshake.
Glass C with a height of 3.1 inches and a radius of 2.7 inches is ____
to contain the entire chocolate milkshake.
choices are too small and too large
Answer:
Glass c
Step-by-step explanation:yw :)
B
[2 0]
-2 5
What is the determinant of B?
Your answer
Answer:
10
Step-by-step explanation:
Determinant = ad - bc
[tex]\det\begin{pmatrix} 2 & 0 \\-2 & 5\end{pmatrix} =\begin{vmatrix} 2 & 0 \\-2 & 5\end{vmatrix} = 2\times5 + 0\times2 = 10[/tex]
Please help me with my work