Answers
Related Questions
What is the product of (x+3)(x-3)=7
Answers
Answer:
Step-by-step explanation:
What you have here is an equation with two roots. The "product" is (x + 3)(x - 3), which comes out to x^2 - 9.
Thus, you have x^2 - 9 = 7, or x^2 - 16 = 0, and the roots of that are {-4, 4}.
a marathon runner completes a 42km course at an average speed of 7km/h calculate the time taken to complete the course.
Answers
Answer:
6 hours
Step-by-step explanation:
42/7=6h
Which phrase describes a nonlinear relationship?
a. The distance traveled by a car moving at constant speed in relation to time
b. The perimeter of a square in relation to the side length.
c. The cost of gasoline in relation to of the number of gallons purchased
d. The area of a circle in relation to the radius.
Answers
Answer: b. The perimeter of a square in relation to the side length.
I hope this helps you :)
File attached
Please help me
Answers
Answer:
c
Step-by-step explanation:
find domain and range of x²-9/x-3
Answers
Answer:
Step-by-step explanation: hope this helps :)
DOMAIN: (-INFINITY,0)
RANGE:(-INIFINITY,INFINITY)
HELP ME PLEASEEE!!
8TH GRADE MATHH
Answers
Answer:
45
Step-by-step explanation:
Look at the line which says x and 135⁰
they add up to 180
SO,
x+135=180
×=180-135
x=45
HELPPPPPPPPPPPPPPP!! I WILL MARK YOU THE BRAINLIEST!!!! PLEASE IM REALLY STRUGGLING.
Answers
Answer:
b
Step-by-step explanation:
PLEASE HELP OH GOD ILL GIVE BRAINIEST HELP PLEASE NOW
Answers
Answer:
1) non linear since linear is a straight line , 2) Line B , 3) Weak negative
Step-by-step explanation:
An artist builds a sculpture out of metal and wood that weighs 14.4 kilograms. 3/4 of this weight is metal, and the rest is wood. How much does the wood part of the sculpture weigh?
Answers
Answer: weight of wood part = 3.6 kilogram.
Step-by-step explanation:
Sculpture made of both metal and wood = 14.4 kilogram
Weight of metal=3/4 of 14.4 kilogram
which means the weight of metal = 3/4 x 14.4kg= 10.8kg
Since the rest is wood, we can say that
weight of wood = Total weight - weight of metal
= 14.4 kilogram- 10.8 kilogram= 3.6 kilogram
Answer i think 3.6
Step-by-step explanation:
please, help me with my geometry:)
Answers
Answer: 8.9443
Step-by-step explanation:
Read the excerpt from "The Tell-Tale Heart."
Which statement best explains how the reader can
determine that the narrator is unreliable?
But you should have seen me. You should have seen
how wisely I proceeded—with what caution—with what
foresight—with what dissimulation I went to work! I was
never kinder to the old man than during the whole week
before I killed him. And every night, about midnight, I
turned the latch of his door and opened it-oh so
gently! And then, when I had made an opening
sufficient for my head, I put in a dark lantern, all closed,
closed, that no light shone out, and then I thrust in my
head. Oh, you would have laughed to see how
cunningly I thrust it in!
O The narrator is very kind to the old man during the
whole week before the murder.
O The narrator checks on the old man every night at
midnight to ensure his well-being.
O The narrator closes the lantern tightly so the old
man is not awakened by the bright light.
O The narrator believes that his audience will approve
of and even laugh at his plot to murder the old man.
Answers
Answer:
The narrator checks the old man at every night at midnight
Step-by-step explanation:
divide 220 in the ratio 3:8
Answers
Answer:
500/(7+3)=50; 3*50=150, 7*50=350. 150:350=3:7
Step-by-step explanation:
o Ayan sinolve kayan geh pa follow po
220 is divided in the ratio 3:8 as 60 and 160 respectively.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
The given ratio is 3:8 and the number is 220.
Here, 3+8=11
Now, 3/11 ×220
= 3×20
= 60
8/11 ×220
= 8×20
= 160
Therefore, 220 is divided in the ratio 3:8 as 60 and 160 respectively.
To learn more about the ratio visit:
brainly.com/question/13419413.
#SPJ6
Checking account earnings at Baker's Bank are expressed by the equation: I = -0.09x + 10.2.
While the earnings at Elite Bank are modeled by: I = -0.02% + 7.5.
In both cases, x is the number of checks written.
At what number of checks will Elite Bank start generating more checking account income than Baker's
Bank?
A. 12
B. 25
C. 39
D.42
Answers
ANSWER IS B
Hope i got this right
Answer:
The answer is C. 39
Step-by-step explanation:
Mari spends $6 on cheese for a party she also plans to buy b boxes of crackers that cost $3 per box
Answers
Answer:
The answer is 6+3b<or equal to 15
Step-by-step explanation:
The camping trip costs $165. How long will it take you to save enough money?
25 Points I guess.
Answers
Answer:
11 weeks
Step-by-step explanation:
$165 / 15 = 11 weeks
11 weeks
Hope that helps!
The equation of line is given by y = 15x and the number of weeks to save enough money is 11 weeks
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the number of weeks be x
Let the cost of trip be y
Let the equation of line be represented as A
Now , the value of A is
Let the first point be P ( 4 , 60 )
Let the second point be Q ( 8 , 120 )
Now , the slope of the line between the two points is
Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Substituting the values in the equation , we get
Slope m = ( 120 - 60 ) / ( 8 - 4 )
On simplifying the equation , we get
Slope m = 60 / 4
Slope m = 15
Now , the equation of line is y - y₁ = m ( x - x₁ )
Substituting the values in the equation , we get
y - 60 = 15 ( x - 4 )
On simplifying the equation , we get
y - 60 = 15x - 60
Adding 60 on both sides of the equation , we get
y = 15x
Now , the cost of the camping trip is $ 165
Substitute the value of y = 165 , we get
165 = 15x
Divide by 15 on both sides of the equation , we get
x = 165/15
x = 11 weeks
Therefore , the value of x is 11 weeks
Hence , the equation is y = 15x
To learn more about equation of line click :
https://brainly.com/question/14200719
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1/4 of what equals 6
Answers
Answer:
24
Step-by-step explanation:
1/4×6
4×6=24
=24
HOPE it HELPS you
Answer:
24
Step-by-step explanation:
[tex]\frac{1}{4}[/tex] of x = 6
x is the unknown value
[tex]\frac{1}{4}[/tex] × x = 6
1x = 6 × 4
x = 24
∴ [tex]\frac{1}{4}[/tex] of 24 equals to 6
A man invests 10000 for 3 years at a certain rate of interest, compounded annually. At the
end of one year, it amounts to 11200. Calculate :
(i) the rate of interest per annum;
(ii) the interest accrued in the second year;
(ii) the amount at the end of the third year.
Answers
Step-by-step explanation:
10000, After 1 year amount = 11200 so interest after 1 year = 1200
Amount = P(1+R/100)T
11200 = 10000(1+R/100)1
R = 12%
Interest for the second year = 11200(1+12/100)1 - 11200 = 1344
after 3 years = 10000(1+12/100)3 = 14049.28
Step-by-step explanation:
(I) Principle = Rs 10000, After 1 year amount
= Rs 11200 so interest after 1 year
= Rs 1200
R = 12%
Amount = P(1+R/100)T
11200 = 10000(1+R/100)1
R = 12%——————————————————————————————————————
(Ii)Interest for second year = 11200(1+12/100)1 - 11200 = Rs 1344
(iii)Amount after 3 year = 10000(1+12/100)3 = Rs 14049.28
You roll a six-sided die numbered 1-6. What is the probability of a multiple of 3?
Experimental or Theoretical?
Answers
Answer:
1/3
Step-by-step explanation:
n(e)/n(s)
n(3)/n(6)
3/6
1/2
anyone doing epic bright thinker
Answers
can someone help me find the slope of this line pleaseeee
Answers
Write the equation of the line that passes through each pair of points (-2,0) (-1,-3)
Answers
Answer:
y = − 3 x − 6
Step-by-step explanation:
I hope this helps you
PLEASE HELLLLLLLLLLLLLLP ME I NEED HELP PLEASE EXPLAIN HOW TO DO IT AS I HAVE A TEST NEXT WEEK AND IM REALLY STRESSED
Answers
Answer:
C. Cos(60°) = Sin(30°)
Step-by-step explanation:
Cos(60°) = 0.5
Sin(30°) = 0.5
21 meters is the same as how many feet?
Hint: 1 m ≈ 3.3 ft
Round your answer to the nearest tenth.
Answers
Answer:
69
Step-by-step explanation:
3.3x21=69.3
y e s . c a k e . y e s .
Answers
Answer:
30 cakes per hour
Step-by-step explanation:
Basically you just find the slope:
[tex]\frac{y2-y1}{x2-21} \\\\\frac{60 - 30}{2-1} \\\\\frac{30}{1}[/tex]
also, yes. cake. *insert emoji with sunglasses here*
Answer:
The answer is 30
have a good day :)
Step-by-step explanation:
GENGUR
20. Gençlik ve Spor bakanlığının düzenlemiş
olduğu Gençlik Kamplarına bu yıl her ilden 16
öğrenci katılmıştır.
Torkiye'de 81 l bulunduğuna göre Gençlik
kamplarne katılan toplam Oğrenci sayısı kaçtır?
Answers
Answer:
11 cevapppppppppppppp bb
What is the value of x in the equation x + 10 = 13?
O-3
03
0 13
O 23
Answers
Answer:
3
Step-by-step explanation:
x+10=13
x+10-10=13-10
Simplfiy
x=3
Hi! Your answer is x = 3.
Please see an explanation for a clear and better understanding to your problem.
Any questions about my answer and explanation can be asked through comments! :)
Step-by-step explanation:
Our goal is to find the value of x. That means what we have to do is to isolate x-term first.
[tex]\huge{x+10=13}[/tex]
To isolate a variable means that to make a variable as a subject or also known as leaving a variable alone. To isolate the x-term for this problem, simply subtract both sides by 10 so we can get rid of 10 from the left side.
[tex]\huge{x+10-10=13-10}\\\huge{x+0=3}\\\huge{x=3}[/tex]
If you are not sure that the answer is correct or not. We can substitute the value of x in the equation.
[tex]\huge{x+10=13}[/tex]
Substitute x = 3 in the equation.
[tex]\huge{3+10=13}\\\huge{13=13}[/tex]
The equation is true for x = 3. Hence, we can conclude that x = 3 is the solution to the equation.
Deidre goes out for lunch and realizes that she only has $10 with her. If she wants to leave a 20% tip and knows she will have to pay 5% tax on her lunch, what is the most expensive lunch she can order?
Answers
Answer:
$7.60
Step-by-step explanation:
10 decrease 20% =
10 × (1 - 20%) = 10 × (1 - 0.2) = 8
8 decrease 5% =
8 × (1 - 5%) = 8 × (1 - 0.05) = 7.6
Carlos is a business marketer. He earns $28.75 per hour. He works 3934 hours. What is
his straight-time pay?
Answers
Answer:
113,102.5Step-by-step explanation:
An electrician bought 120 feet of electrical wire and used 105 feet of it
What percent of the wire went unused?
A 15%
B 12.5%
C 8.75%
D 7%
Answers
Answer:
B. 12.5%
Step-by-step explanation:
Find how much was unused:
120 - 105
= 15
To find what percent this is, divide it by 120:
15/120
= 0.125
Multiply this by 100:
0.125(100)
= 12.5
So, 12.5% of the wire went unused
The correct answer is B. 12.5%
What do you need to do to solve the problem?
x/5= 8
O Multiply each side by 5
O Multiply each side by - 5
O Multiply each side by 1/5
O Multiply each side by - 1/5
Answers
Answer:
Multiply each side by 5
Step-by-step explanation:
Multiplying and dividing are opposite recipricols, so to undo one, we just to the other. If we multiply something by 5, it will get of the fraction where x is being divided by 5
Answer:
all the options are correct
