Answer:
x = 8/21
Step-by-step explanation:
use cosine ratio
use associative property of multiplication to write an expression equivalent to (18*7)*y
Answer:
(7*y)*18
Step-by-step explanation
the associative property is a property of some binary operations, which means that rearranging the parentheses in an expression will not change the result
Which expression is equivalent to 4√147
A. 28√3
B. 12√7
C. 3√7
Answer:
(A) 28 squared 3
Step-by-step explanation:
Help I’ve been stuck on these questions
Answer:
3+4x
7-12
2x+14=18
four times a number
four times a number is added to seven
Step-by-step explanation:
laura tiene láminas y 40 están repetidas si coloca 5 en cada página de su álbum ¿cuántas páginas completará laura?
ayudaaaaa
Answer:
8.
Step-by-step explanation:
Dado que Laura tiene 40 láminas repetidas, si coloca 5 de estas láminas en cada página de su álbum, para determinar cuántas páginas de su álbum podrá Laura completar se debe realizar el siguiente cálculo:
40 / 5 = Cantidad de páginas
8 = Cantidad de páginas
Así, colocando 5 láminas por página, Laura podrá completar 8 páginas de su álbum.
If Kelly walks 2 miles in 80 minutes, then Kelly will walk how far in 110 minutes if she walks at the same
speed the whole time? If necessary, round your answer to the nearest tenth of a mile.
HURRY PLEASE
Simplify: 12k - 6 + (3k)(4)
A rectangle is 5 feet wide and 10 feet long what is the perimeter
solve the system of linear equations by substitution:
x+y=27, y=x+9
Answer:
you answer will be x=9 , y=18
I need help
5th Grade: Module 2 - Lesson 23
please send me picture why bc i need do a division of that and show my work please help
Answer:okay send me a picture of your lesson
Step-by-step explanation:
Answer:
or
Step-by-step explanation:
13. Bir çay bahçesinde 3 kişilik, 4 kişilik ve 6 kişilik masa-
lar vardır. Her tür masadan en az bir tanesi dolu olmak
üzere, toplam 11 masa tam dolu, diğerleri boştur.
Buna göre, çay bahçesindeki masalarda oturan kişi
sayısı en az kaçtır?
A) 37
B) 39
C) 43
D) 45
E) 47
AND THIS!! IM STUCK ON THIS
Answer:
y=3x+10
Step-by-step explanation:
2=-12+b
b=10
Find the first partial derivatives of the function. f(x, t) = e−9t cos(πx)
Answer:
[tex]f_{x}(x,t) = -\pi e^{-9t} \sin{(\pi x)}[/tex]
[tex]f_{t}(x,t) = -9\cos{(\pi x)} e^{-9t}[/tex]
Step-by-step explanation:
We are given the following function:
[tex]f(x,t) = e^{-9t} \cos{(\pi x)}[/tex]
First derivatives:
We find the first derivatives in function of x and of t.
Function of x:
The exponential is only a function of t, so it is treated as a constant.
[tex]f_{x}(x,t) = e^{-9t} \frac{d}{dx](\cos{(\pi x)}) = -e^{-9t} \sin{(\pi x)} \frac{d}{dx}(\pi x) = -\pi e^{-9t} \sin{(\pi x)}[/tex]
Function of t:
Same logic as above, the cosine as treated as a constant.
[tex]f_{t}(x,t) = \cos{(\pi x)} \frac{d}{dt}(e^{-9t}) = \cos{(\pi x)} e^{-9t} \frac{d}{dt}(-9t) = -9\cos{(\pi x)} e^{-9t}[/tex]
Area of composite shapes!!
Answer:
Either 24 cm^2 or 28 cm^2
Step-by-step explanation:
I can't remember if the calculated area of the part of the shape which is removed is halved or not, if it's cut in half then the answer is 28 otherwise it's 24.
It's either
32 - 8 = 24
32 - 4 = 28
A slice of a pie weighs 8 ounces. How many pounds do 6 slices of pie weigh?
Answer:
A slice of a pie weighs 8 ounces. How many pounds do 6 slices of pie weigh?
Answer: 48 pounds
Step-by-step explanation:
Hope this helps :D
A popular oil change place decided to offer a guarantee for its customers based on the time it took to complete the oil change. Their research showed that these times were normally distributed with a mean time of 17.8 minutes with a standard deviation of 3.2 minutes. They wanted to place the guarantee at a time so that only 3% of customers would be expected to wait beyond the guaranteed time. Where should the company have placed that guarantee time
Answer:
The company should have placed that guarantee time on 23.8 minutes.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Their research showed that these times were normally distributed with a mean time of 17.8 minutes with a standard deviation of 3.2 minutes.
This means that [tex]\mu = 17.8, \sigma = 3.2[/tex]
They wanted to place the guarantee at a time so that only 3% of customers would be expected to wait beyond the guaranteed time.
So the 100 - 3 = 97th percentile, which is X when Z has a pvalue of 0.97. So X when Z = 1.88.
Where should the company have placed that guarantee time
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]1.88 = \frac{X - 17.8}{3.2}[/tex]
[tex]X - 17.8 = 1.88*3.2[/tex]
[tex]X = 23.8[/tex]
The company should have placed that guarantee time on 23.8 minutes.
HELPPPP!!! PLEASE
find the value of x
Answer:
120
Step-by-step explanation:
90+90+x+60=360
240+x=360
x=360-240
x=120⁰
Answer:
x = 180° - 60° = 120°
Step-by-step explanation:
Because they are same side interior angles
Which two expressions have the same value?
1. 23-82
2. 23 - (8 x 2)
3. (23 -8) x 2
Answer:
Any expression doesn't have the same value
Step-by-step explanation:
1. 23-82Subtract 82 from 23.
−59
2. 23 - (8 x 2)Simplify each term.
Multiply 8 by 2.
23−1⋅16
Multiply −1 by 16.
23−16
Subtract 16 from 23.
7
3. (23 -8) x 2Subtract 8 from 23.
15⋅2
Multiply 15 by 2.
30
Hope it is helpful.....Richard has three times as many crayons as Jordan. Together they have 60 crayons. How many crayons does
Richard have?
O 15 crayons
O 16 crayons
0 44 crayons
0 45 crayons
Answer: 44 Crayons
Step-by-step explanation:
Find the value of x. If necessary, round your answer to the nearest tenth. O is the center of the circle. The figure is not drawn to scale.
20
5
o
x
Оа
125
Ob
20.6
19.4
Od
11.2
Answer:
11.2
Step-by-step explanation:
x is the length of a radius of the circle, all radii have the same length.
the chord of length 20 is perpendicular to the segment of length 5, so the segment bisects the chord , so half of the chord is length 10.
The segment of length 10 is one leg of a right triangle while the segment of length 5 is the other leg. The hypotenuse is also a radius of the circle.
The length of the hypotenuse can be found by they Pythagorean Theorem, a^2 + b^2 = c^2, so
5^2 + 10^2 = c^2 or
25 + 100 = c^2 or
c^2 = 125 or
c = [tex]\sqrt{125}[/tex] = ≈ 11.2
so if one radius is approximately 11.2, then all radii (including the one of length x) are 11.2
Lois loans her sister Emily $2,000 with a simple interest rate of 1.5%. How much money will Lois make in interest if it takes Emily 3.5 years to pay her back
Answer:3261.91
Step-by-step explanation: y=2000(1+.15)3.5
Help please I will mark brainly answer:))
Answer:
2 times 30.
Step-by-step explanation:
Answer:
im not 100% sure this is right but i hope it helps!
total cost
100 $ for 2 visits
160 $ for 4 visits
190 $ for 5 visits
280 $ for 8 visits
cost per visit
60 $ for 2 visits
120 $ for 4 visits
150 $ for 5 visits
240 $ for 8 visits
the table shows the cost to take a ferry boat across a lake. Ferry Boat Tickets vehicle | cost cars| $52 Trucks| $75
plss take a pic of your quistion
Step-by-step explanation:
I cant understand plss
PLEASE HELP!!!!
What is the area of this trapezoid enter your answer in the box ?
Which rate can you set 7 miles/ 1hour equal to in order to find the distance traveled in 49 hours at 7 miles per hour?
Answer:
Step-by-step explanation:
miles hour
7 : 1
*7 *7
--------------------------
49 : 7
49/7=7
1/4-5/8n is equivalent to p(2-5n)
Answer:
1/4 - 5/8n = p (2-5n)
Hey there!
The answer is [tex]\frac{-3}{8}n=2p-5np[/tex]
Since they are equivalent to each other, we will set them equal to each other, because equivalent means equal to.
[tex]\frac{1}{4}n-\frac{5}{8}n = p(2-5n)[/tex]
Now, we will simplify it. First, we will simplify the left side by subtracting. To do this, we can make [tex]\frac{1}{4}[/tex] into [tex]\frac{2}{8}[/tex]. That gives us:
[tex]\frac{-3}{8}n=p(2-5n)[/tex]
Now, we'll simplify the right side by distributing [tex]p[/tex]:
[tex]\frac{-3}{8}n=2p-5np[/tex]
Have a super awesome day! :)
me pueden ayudar con este problema
Answer:
2.3 batches
Step-by-step explanation:
Answer:
3.75 cups of sugar and 7.8 cups.of flour
Step-by-step explanation:
1.25×3=3.75
2.6×3=7.8
Please help due soon.
Answer:-41
Step-by-step explanation:a+b/2 =-5 so work backwards a+31/2 = -5 so -5×2 = -10 then minus 31 = -41 so -41 +31 / 2 =-5
Point W has the coordinates (−19,−25)
. In which quadrant is W located?
A
Quadrant I
B
Quadrant II
C
Quadrant III
D
Quadrant IV
4. What is the circumference of a circle with a diameter of 70 yd? Round your answer to the nearest yard. (
O 220 yd
O 1,540 yd
210 yd
440 yd
Answer:
220 yd
Step-by-step explanation:
circumference = pie * diameter
c = pie * 70
i’m giving 20 points pls help ☹️
Answer:
Dark Blue
Step-by-step explanation:
The easiest way it to assume X = 0. This will make the parentheses equal to 1 in each equation. So, the Y value will be the number in front of the parentheses.
The first will make the point (0,27)