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Related Questions
Solve, using linear combination.
8x + y = 14
3x + y = 4
(2.0)
(2,-2)
(0.2)
(-2.2
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Answer:
(2,-2)
Step-by-step explanation:
pls help me out!!! ((#4))
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a^2 + b^2 = c^2
5^2 +b^2 = 7^2
25=b^2 = 49
49-25=b^2
49-25=14
b^2=24
b=sqrt24
sqrt24=4.89898
if the sum of the interior angles of a polygon is 2340, how many sides does the polygon have?
Answers
Answer:
15
Step-by-step explanation:
Where n represent no.of sides
(2n-4)90=2340
180n-360=2340
180n=2340+360
180n=2700
n=15
Joel has a goal to practice his clarinet for 4 ½ hours per week. The list below shows the number of hours Joel has practiced so far this week.
Answers
Answer:
3/4 hours
Step-by-step explanation:
Joel has a goal to practice his clarinet for 4 1/2 per week. The list below shows the number of hours Joel has a practiced so far for the week. Monday 1 1/2 hours Wednesday 1 1/4 hours Thursday 1 hour. How many more hours does he need to practice this week to meet his goal?
Total practice hours per week = 4 1/2 hours = 9/2 hours
Hours of practice so far for the week:
Monday = 1 1/2 hours = 3/2 hours
Wednesday = 1 1/4 hours = 5/4 hours
Thursday = 1 hour
Total = Monday + Wednesday + Thursday
= 3/2 + 5/4 + 1
= (6+5+4)/4
= 15/4 hours
How many more hours does he need to practice this week to meet his goal
Hours needed to meet goal = Total practice hours per week - Hours of practice so far for the week
= 9/2 - 15/4
= (18-15)/4
= 3/4 hours
Hours needed to meet goal = 3/4 hours
this is URGENT BESTIES
Answers
Answer:
675 [tex]ft^2[/tex]
Step-by-step explanation:
The radius is 15, so replace r in the formula with 15
[tex]A=\pi 15^2[/tex]
A = 225 pi
A = 675
(using 3 for pi, since they specified)
Answer: 675
Step-by-step explanation:
Please just give me the answer to this question, I’m so lazy haha the Pablo one thank you!
Answers
Answer:
I would say its 640 seconds sorry if I'm wrong
This figure shows right triangles drawn inside of a rectangle
Answers
Answer:
Sin p=Cos v
Cos k=Sin r
Step-by-step explanation:
The sine of an angle is equal to the cosine of its complement.
The cosine of an angle is equal to the sine of its complement.
2 numbers a and b vary directly if ab =k, k is a constant is it correct
Answers
Answer:
No, because 2 variables vary directly only if: a = k x b OR b = k x a, being "k" the constant
Step-by-step explanation:
See above
Mary’s parents planted a garden that was 4 feet long and 5 1/2 feet wide. Lisa’s parents planted a garden that was 24 feet long and 5 1/2 feet wide. How many times larger is the area of Lisa’s garden?
A. 3 times larger
B. 6 times larger
C. They are equal
D. 20 times larger
Answers
Answer:
6 TIMES LARGER
Step-by-step explanation:
4 by 5.5 which is 22 and 24 by 5.5 which is 132 divide 132 by 22 to get your answer
Answer:6 time larger
Step-by-step explanation:
the diameter or a circle is 2 yards. What is the circles circumference
use 3.14 for π
Answers
Answer:
diameter = 6.28 yards
Step-by-step explanation:
2 x 3.14 = 6.28
4. The Bulldog Theater charges $9.10 for each adult ticket and $7.75 for each student ticket. Mrs. Williams purchased 7 tickets (some students and some adult) for $56.95. Which system of equations could be used to find a, the number of adult tickets, and s, the number of student tickets purchased?
Answers
Answer:
Two adult tickets and 5 student tickets
Step-by-step explanation:
Let a=adult tickets Let s=student tickets
You know that each adult ticket is $9.10 and each student ticket cost $7.75. At the end, it cost $56.95 for both students and adults so the first equation should be 9.10a+7.75s=56.95. To get the second equation, you know that Mrs. Williams purchased 7 tickets in total that were both students and adults. Therefore, the second equation should be a+s=7. The two equations are 9.10a+7.75s=56.95
a+s=7.
Now, use substitution to solve this. I will isolate s from this equation so the new equation should be s=-a+7. Plug in this equation to the other equation, it will look like this 9.10a+7.75(-a+7)=56.95. Simplify this to get 9.10a-7.75a+54.25=56.95. Simplify this again and the equation will become 1.35a=2.70. Then divide 1.35 by each side to get a=2. This Mrs. Williams bought two adult tickets. Plug in 2 into a+s=7, it will look like this (2)+s=7. Simplify this and get s=5. This means Mrs. Williams bought five adult tickets. Therefore she bought 2 adult tickets and 5 student tickets.
Hope this helps
-18 < 9x
Solve for x ...
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Answer:
x= -2
............................
A box of chocolates costs $6.39. Debra bought 8 boxes. How much did she spend?
PLEASEE HELP
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Ethan hits 4 ringers in 10 attempts while throwing horseshoes. What does an experimental probability of 2/5 describe?
Your answer:
O P (horseshoes)
O P (missed shots)
O P (attempts)
O P (ringers)
Answers
Answer: P (ringers)
Step-by-step explanation:
This probability is simplified from 4/10 to 2/5
Since he got 4 ringers out of 10 attempts
we can tell that this probability stands for Ringers
The downtown trolly travels around town on a rectangular route stopping at 4 different tourist destinations if the length of the rought was 5.5 miles and the with was 4 miels how far is one complete trip anser
Answers
Answer:
19 miles
Step-by-step explanation:
Given that :
Shape of route is rectangular :
Length of route = 5.5 miles
Width of route = 4 miles
Distance of one complete trip = perimeter of the rectangular route :
Perimeter of a rectangle :
P = 2(length + Width)
P = 2(5.5 + 4)
P = 2(9.5)
P = 19 miles
Hence one complete trip is 19 miles long.
A swing hangs from a beam 10 feet high, with the seat hanging 2 feet above the ground. In motion, the swing moves back and forth from -130° to -50° to the horizontal. How far forward and back does the swing move along the ground at the extremes?
Answers
Answer:
11.17 ft
Step-by-step explanation:
Since the swing hangs from a beam 10 feet high with the seat hanging 2 feet above the ground, the swing moves in an arc of radius r = 10 ft - 2 ft = 8 ft.
Now, since the swing moves back and forth from -130° to -50° to the horizontal, the length of arc L it moves in is given by
L = Δθ/360 × 2πr where Δθ = change in angle of the swing = θ₂ - θ₁ where θ₁ = -50° and θ₂ = -130°. So, Δθ = θ₂ - θ₁ = -130° -(-50°) = -130° + 50° = -80°.
Substituting r and Δθ into L, we have
L = -80°/360° × 2π(8 ft)
= -8/36 × 16π ft
= -32π/9 ft
= -100.53/9 ft
= -11.17 ft
Ignoring the negative sign, the length of arc L = 11.17 ft. So, the swing moves back and forth 11.17 ft
Last year you drove your car 11,452 miles. You kept track of all your expenses for the year. Your fixed cost (insurance, license amd registration, depreciation) totaled $2,578 and your variable expenses ( gas, oil changes, repairs, tires) totaled $1,927. What was your cost per mile to operate your car?
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Find the mistake(s) in the problem below. Correct the mistake to find the correct area.
The radius of a circle is 53 mm.
r=53
53 divided by 2=26.5
d=26.5
A=3x26.5 squared
A=79.5
The area of the circle is79.5mm
Answers
Answer:
QFQF
Step-by-step explanation:
FAFAF
Ruby visiting San FranciscoFrom her hotel walks 1 block west and 2 blocks south to a coffee shop. Then she walks 6 blocks east and 5 blocks south to a museum.Where is the museum relation to her hotel?
PLS ANSWER THIS ASAP
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A rectangular prism has a volume of 750 cubic millimeters. Its length is 15 millimeters, and its width is 10 millimeters. What is its height?
50 mm
5 mm
6 mm
60 mm
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Answer:
5mm
Step-by-step explanation:
Help meeeeeee no links plz you are very kind I really appreciate people like you.
Answers
Answer:
225 ft²
Steps:
(20×10)+5² = 200+25 = 225 ft²
Answer: 225ft^2
Step-by-step explanation:
help me please༼ つ ◕_◕ ༽つ
The value of x is ___, and the value of y is ___.
Answers
Answer:
I think x is 60 and y is 50.
Step-by-step explanation:
70 + 50 = 120
180 - 120 = 60
x = 60
50 + 50 = 100
70 + 60 = 130
130 + 100 = 230
230 - 180 = 50
y = 50
I hope this helps u! :D
Answer:
x=60 y=50
Step-by-step explanation:
180 is equal to the whole triangle so 50+70=120 and 180-120= 60
the other triangle has a missing value by doing the same thing before we can figure out that the missing value is 70. 70+x which is 60 equals 130. A straight line is equal to 180 so 180-130= 50.
Hope I could help!
Would be great if someone could solve this for me I’m not too sure how to do it .
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Approximately students attend Jones Middle School. Below is the data collected from two random samples of students regarding school lunch preference. Which of the following inferences can be made based on the data collected? Select all that apply.
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Answer:
there is nothing to select. u need to provide more info
An airplane leaves Edmonton International Airport and Flies south to Phoenix Arizona. The flight is 6h in duration and distance is 2800Km
A.) Write an equation that represents this flight.
PLEASE HELP FAST 20 POINTS!
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Help please!!!!!!!!!!!!
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Answer:
The order is :
1. Ruth
2. Alice
3. Debra
4 Lisa
Step-by-step explanation:
I hope that is useful for you :)
Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
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Answer:
what am i sopposed to do?
Step-by-step explanation:
Need help with this!!
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Answer:
is it d?
Step-by-step explanation:
what is 18k+3
asking for a friend
k as in the letter not 18,000
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factor 3 out of 18k+3.
3(6k+1)
Choose Yes or No to tell if the fraction 58 will make each equation true. 815−□=37 Yes □−516=58 No 78−12=□ No 34−18=□ Yes
Answers
Answer:
815−58=37 False
58−516=58 False
78−12=58 False
34−18=58 False
Step-by-step explanation:
i just did them all on my algebra calculator and they all said false. brainliest please?