mathematics of negative
Answer:
The answer is A
Step-by-step explanation:
If you solve the equation, you get x is less than or equal to -2. Since -1 is the only number that doesn't satisfy this inequality, A is the answer.
Answer:
3x - 5 > 4x - 3
-1 is the answer (A)
Step-by-step explanation:
ILL GIVE BRAINLIEST
Which statement best describes how ultrasound can produce an image?
A. Sound waves emitted by the machine bounce off tissues and
return to the machine.
B. Sound waves that form outside the body reflect off the body and
are detected by the machine.
C. Sound waves that form within the body travel to the machine,
where they are detected.
D. Sound waves emitted by the machine pass through the body and
are measured on the other side.
Answer:
A
Step-by-step explanation:
just did it :)
The statement that best describes how ultrasound can produce an image is sound waves that form outside the body reflect off the body and are detected by the machine.
What is Ultrasound?Diagnostic ultrasound, also called sonography or diagnostic medical sonography, is an imaging method that uses sound waves to produce images of structures within your body.
We have some statements that describes how ultrasound can produce an image.
The ultrasound image is produced based on the reflection of the waves off of the body structures. The strength (amplitude) of the sound signal and the time it takes for the wave to travel through the body to provide the information necessary to produce an image.
Therefore, the statement that best describes how ultrasound can produce an image is sound waves that form outside the body reflect off the body and are detected by the machine.
To solve more questions on sound waves, visit the link below -
https://brainly.com/question/29767263
#SPJ2
Pls Hurry: Ruben bought 2 candy bars and 4 bags of chips for $24. Lucia bought 2 candy bars and 2 bags of chips for $14. What was the cost of the individual candy bar and a bag of chips?
Answer:
A candy bar costs $0.80
A bag of chips costs $6.20
Step-by-step explanation:
Let's call candy bars x, and bags of chips y.
Ruben ought 2x and 4y for $24
Lucis bought 2x and 2y for $14
This means that 2x+4y = 24 and 2x+2y = 14
Now we have a system of equations that we can solve.
2x + 2y = 14
2(x + y) = 14
x + y = 7
y = 7 - x
Plug this into the next equation to get:
2x + 4y = 24
2x + 4(7 - x) = 24
2x + 28 - 7x = 24
28 - 5x = 24
-5x = -4
x = -4/-5
x = 4/5 = 0.8
plug that x value into y = 7 - x to find y
y = 7 - x
y = 7 - (4/5)
y = 245/35 - 28/35
y = 217/35 = 6.2
now we can check our work:
2(x + y) = 14
2(6.2 + 0.8) = 14
2(7) = 14
14 = 14
^ this means our values are correct
Answer:
A candy bar costs $0.80
A bag of chips costs $6.20
A man uses 2/5of his piece of land to keep poultry,1/4 for bulls, 1/7 of the remainder for goats and test for sheep.If he uses 12 acres for goats, determine the total acreage he uses for sheep. (3marks)
Answer:
72
Step-by-step explanation:
We will first have to find the fraction of the whole land goats use. If we add 2/5 and 1/4, we will get 13/20. Simplifying the expression 1-13/20 gets 7/20, which is the total fraction of land the goat and sheep has. The goat will then get 7/20*1/7 of the whole land, which is 1/20. The sheep will then get 7/20*6/7 of the entire land, which is 3/10. Because 1/20 of the whole land is 12 acres, the farmer has 240 acres. SImplifying the expression 240*3/10 gets 72 acres
A number multiplied by itself is 49. What's the number?
Answer: 2401
Step-by-step explanation: Yes
the number multiplied by itself is 7
the question is in the above
please write your answer with explaination
thank you so much and have a great day
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
we know that volume of a sphere is :
[tex] \boxed{ \boxed{ \frac{4}{3} \pi {r}^{3} }}[/tex]so, let's solve for radius (r) :
[tex] \dfrac{4}{3} \pi {r}^{3} = 288 \pi[/tex][tex]r {}^{3} = 288 \pi \times \dfrac{3}{4 \pi} [/tex][tex]r {}^{3} = 72 \times 3[/tex][tex]r {}^{3} = 216[/tex][tex]r = \sqrt[3]{216} [/tex][tex]r = 6[/tex]value of radius (r) = 6 units
The length of a river is 480km. What is its length on a map with a scale 1 : 5,000,000?
Answer:
Loading,please wait...
Step-by-step explanation:
Answer:
9.6 cm
Step-by-step explanation:
can someone please do this math problem with process shown
here ...
let us suppose breadth of the room be x.
then, length = 2x
now ,the cost of plastering the floor is RS 1080 at rate of RS 15 per ...
hence
the area of floor{length *breadth} =1080/15
x*2x=72
or,2x^2=72
or,x=√(72/2)
hence, the value of x= 6m
(ie. breadth {x}=6. &. length {2x}=12)
again....
we have ,
volume of the room (length *breadth*height)is 396m^3
12*6*height=396
72*height=396
height=396/72
hence , height=5.5
we know,
the area of 4 walls = 2( length+breadth)*height
=2(12+6)*5.5
=198
hence the cost of plastering 4 walls at the rate of RS 20 per SQ meter = 198*20=RS 3960
help me math homework part 2
What are the correct answers to this geometry problem?
https ://www. you tube.com/chan nel/UCRg4zCv6 o93Nxiidwv kQnoA
HELPPPP HOW DO I DO THIS
Step-by-step explanation:
The sum of an infinite geometric series is expressed according to the formula;
a 1 r where;
a is the first term of the series
r is the common ratio
If the sum of an infinite geometric series is three times the first term, this is expressed as
S∞ = 3a
Substitute S = 3a into the formula above to get the common ratio r;
a
3a 1-r
cross multiply
3a(1-r) = a
3(1-r) = 1
open the parenthesis
3- 3r 1
subtract 3 from both sides
33r31-3
-3r = -2
2|3 r =
Hence the common ratio of this series is 2 upon 3
= 2\3
The equation y= 1/3x represents a proportional relationship. What is the constant of proportionality? A. x B. 0 c. 1/3 D. 3
Answer:
C ) 1/3
Step-by-step explanation:
In the given equation, y = 1/3x, where it represents a proportional relationship:
1/3 represents the constant of proportionality which shows that as x increases, y also increases at the same rate. The constant of proportionality in this given instance is also the rate of change, or the slope.
The constant of proportionality under the direct proportion condition is the slope of the line when plotted for two proportional constants x and y on a graph.
Therefore, the correct answer is C) 1/3.
4n+60=400
help me with this math homework
Answer:n=85
Step-by-step explanation:
Answer:
Your answer is n = 85
Step-by-step explanation:
4n = 400 - 60
4n = 340
n = 340 / 4
n = 85
Hope this helps!
Determine the domain and range of the following relation.
x+10=y
Answer:
Domain: (-∞, ∞)
Range: (-∞, ∞)
Step-by-step explanation:
Given the linear function, x + 10 = y,
Its domain is the set of all real numbers, as represented in the interval notation, (-∞, ∞).
The same goes with range, the set of all real numbers, as represented in the interval notation, (-∞, ∞).
Challenge A movie theater sends out a coupon for 15% off the price of a ticket. Write an equation
for the situation, where y is the price of the ticket with the coupon, and x is the original price of the
ticket. Use pencil and paper. Draw a graph of the equation and explain why the line should only be
in the first quadrant
Answer:
The equation is y= 0,65 x
If x is the price of the ticket without the coupon, and the theater offers a discount if you have a coupon, then having a coupon means that the price a person ultimately pays (y) is the original price (x) minus a 35% of this price: y= x -0.35 x . By association: y= (1-0.35) x and then y= 0.65 x.
The line should be in the first quadrant because the first quadrant allows you to represent a situation in which the dependent variable (y) and the independent variable (x) are both positive. This is the case in this exercise, because both prices, the one without discount (x) and the one with discount (y) are necessary positive (you can not pay a negative price!).
Step-by-step explanation:
The price without discount (or without the coupon) is x.
The price with discount (or with coupon) is y.
y and x are both related: y is a percentage of x, specifically, y is 35% smaller than x. This means that y =0.65 x.
Answer:
0.85x
Step-by-step explanation:
Not what the guy on the top said.
The regular price of a t-shirt is 18 dollars. What price will you pay after a 20% discount
Answer: $14.40
Step-by-step explanation:
Full price = $18.00
20% discount of full price = $18.00 x [tex]\frac{20}{100}[/tex]
= $18.00 x 0.2
= $3.60
Price paid after 20% discount = full price minus 20% discount
= $18.00 - $3.60
= $14.40
This is for Math And it is urgent, please I also need some work shown. This is URGENT
Answer:
Q1: 250
Q2: 50
Step-by-step explanation:
Q1: 14,000 + 160x = 24,000 - 200x
24,000 - 14,000 = 10,000
200x - 160x = 40x
10,000/40x = 250
Q2: 800 - 6x = 1,000 - 10x
1,000 - 800 = 200
10x - 6x = 4x
200/4x = 50
Smith and his friends are gaming online on a popular website. An hour later, 6 friends go offline. Five of them continue playing. How many of them were gaming online initially?
Write the problem__
People on line originally
Answer:11 people
Step-by-step explanation:
Match the graph to the solution of the system of equations.
(-4, 3)
(-1, 4)
(3, -3)
(3, 4)
(3, -4)
(4, 3)
(4, -1)
Answer:
see explanation
Step-by-step explanation:
The solutions to the system of equations is at the point of intersection of the 2 lines.
(3, - 4 ) ← first one
(- 1, 4 ) ← second one
(3, - 3 ) ← third one
(3, 4 ) ← fourth one
The expression (2x^2)^3 is equivalent to
O 6x^5
O 6x^2
O 8x^6
Answer:
8x^6
Step-by-step explanation:
plsss help me:((( I really need it now:(((
Step-by-step explanation:
1. y--7=-2(x-0)
y+7=-2x
y=-2x-7
2. y--3=-2(x-1)
y+3=-2x+2
y=-2x+2-3
y=-2x-1
You earn $12.00 an hour working at a fast food restaurant. Your most recent paycheck
was for $564. How many hours did you work?
Answer:
47 hours
Step-by-step explanation:
564/12 = 47
Answer:
47 hours
Step-by-step explanation:
564÷12.00= 47
Points A,B,C and D are collinear points such that the order is A-B-C-D and AB>CD which of the following statement is true (A) BCBC (C) ABBD
Answer:
The answer is differently C
I need help !!!!!! !!!!!!!
15. One of two complementary angles is 18 less than the other.
Find the measure of each angle.
Answer: 36° and 54°
Step-by-step explanation:
Let the larger angle be 'R' and the smaller angle 'q'
⇒ R + q = 90 [since complementary angles have a sum of 90°]
Then R - q = 18 [since 1 of 2 complementary angles is 18 less than other]
We can combine the equation
(18 + q) + q = 90
18 + 2q = 90
2q = 72
q = 36
We can solve for R
R - 36 = 18
q = 36 + 18
q = 54
PLEASE HELP WILL GIVE BRAINLIEST AND 5 STARS AND A THANKS DUE IN 1 HOUR!~
Answer: Slope: 2/3
Plug the equation into y2 - y1 / x2 - x1 and you should have the answer!
is 0.3 closer to 0 or 0.5
Answer:
0.3 is closer to 5
Step-by-step explanation:
0.3 is 0.3 away from 0 and 0.2 away from 5.
0.2<0.3
Solve for m GHI if m GHJ = 59° and m JHI = 39º.
Answer:
m GHI = 82°
Step-by-step explanation:
59+39=98
180-98=82 <==== answer
180 is the total amount of degree
help me please asapppppp it should be marked in 6mins hurry up
a(x)= 3m(x)+4 in standard form
Answer:
a(x)= 3mx+4
Step-by-step explanation:
have a lovely day <3