The absolute value of the quantity between the vertical bars is positive
4, which makes Ethan's claim true.
Response:
The true statement is; Ethan is correct because the absolute value bars are grouping symbols so first you must subtract 7 minus 3 = 4 and |4| = 4What are absolute values and how can Ethan's statement be evaluated?Absolute value of a variable x, expressed as |x| is the value of x that is
non negative.
Ethan's claim is expressed as follows; |7 - 3| = 4
The bars of absolute value surrounds the quantity, to which the
magnitude is being referred and the result is always positive not
regarding the sign (positive or negative).
The statement that is true is therefore;
Ethan is correct because the absolute value bars are grouping symbols so first you must subtract 7 minus 3 = 4 and |4| = 4Learn more about absolute values here:
https://brainly.com/question/13153289
Answer: A) Ethan is correct because the absolute value bars are grouping symbols so first you must subtract 7 - 3 = 4, and (4) = 4.
Step-by-step explanation:
Two cars leave the same parking lot, with one heading north and the other heading east. After several minutes, the eastbound car has traveled 2 kilometers. If the two cars are now a straight-line distance of 4 kilometers apart, how far has the northbound car traveled? (use){Pythagorean theorem}[tex]a^{2} +b^{2} =c^{2}[/tex]
Answer:
Step-by-step explanation:
G
Answer:
[tex]\sqrt{12}[/tex]
Step-by-step explanation:
[tex]\sqrt{4^2-2^2} =\sqrt{12}[/tex]
Hence, the answer is [tex]\sqrt{12}[/tex].
Please mark as Brainliest!
The population of a town was 25000 in the 2000 census and and 30000 in 2010 census. By what percent did the population increase
Answer: This means that the population increased a 20% between the year 2000 and the year 2010.
Step-by-step explanation:
In this case, we have that 25,000 is the 100%.
Now we want to know which percentage represents 30,000
Let's suppose that the percentage is X.
Then we can have a system of equations:
30,000 = X
25,000 = 100%
To find the value of X, we can take the quotient of these two equations:
30,000/25,000 = X/100%
(30,00/25,000)*100% = X = 120%
Then in the 2000 we had a 100%, and in the 2010 there was a 120%.
The difference is:
120% - 100% = 20%
This means that the population increased a 20% between the year 2000 and the year 2010.
Math help please 2
Will give brainest
Answer: The answer is the second option
Step-by-step explanation:
Divide each term by 4 and simplify x>8
Which function is nonlinear?
mark as brilliant! help
Answer:
I believe the answer is C. Please let me know if I am wrong
Step-by-step explanation:
solve for the value of w
Answer:
w = 13
Step-by-step explanation:
Right angle: 90°
Write an equation:
(4w + 5)° + 33° = 90°
Solve for w.
(4w + 5)° = 90° - 33°
(4w + 5)° = 57°
You can take away the brackets.
4w + 5 = 57
Isolate w.
4w = 57 - 5
4w = 52
w = 52 ÷ 4
w = 13
I hope this helps!
Help please!!! It’s not D...
Answer:
Step-by-step explanation:
on the planet Jupiter, a ball this thrown upward at a velocity at 10m/s. It's height, h(t) meters after t seconds is given by the equation h(t)=-12.5(t-0.4)^2+4.
a) what is the maximum height the ball reaches?
b) what was the height of the ball when it was released from the throwers hand?
c) how many seconds after the ball was hit and did it land on the surface of Jupiter to the nearest second?
Answer:
a) The maximum height that the ball reaches is 4 meters.
b) The height of the ball when it is released from thrower's hand is 2 meters.
c) The ball will take approximately 0.966 seconds to hit the surface of Jupiter.
Step-by-step explanation:
a) Let [tex]h(t) = -12.5\cdot (t-0.4)^{2}+4[/tex], where [tex]t[/tex] and [tex]h(t)[/tex] are the time and height, measured in seconds and meters. Since this equation is in vertex form, the maximum height corresponds to the value associated with the dependent variable (height). That is:
[tex]h(t) -4 = -12.5\cdot (t-0.4)^{2}[/tex]
Hence, the maximum height that the ball reaches is 4 meters.
b) The height of the ball when the ball is released from thrower's hand is the height of the ball at [tex]t = 0\,s[/tex]. Then, we evaluate the function:
[tex]h(0) = -12.5\cdot (0-0.4)^{2}+4[/tex]
[tex]h(0) = 2\,m[/tex]
The height of the ball when it is released from thrower's hand is 2 meters.
c) The instants when the ball hits the ground are those instants [tex]t[/tex] so that [tex]h(t) = 0[/tex]. Then:
[tex]-12.5\cdot (t-0.4)^{2}+4 = 0[/tex]
[tex]-12.5\cdot (t^{2}-0.8\cdot t +0.16)+4 = 0[/tex]
[tex]-12.5\cdot t^{2}+10\cdot t +2 = 0[/tex]
By the Quadratic Formula we obtain the following roots:
[tex]t_{1} \approx 0.966\,s[/tex], [tex]t_{2}\approx -0.166\,s[/tex]
Only the first root is physically reasonable, since time is a positive real variable.
The ball will take approximately 0.966 seconds to hit the surface of Jupiter.
HELP QUICK PLSS
The shadow of the tree is 40 feet long. A yard-stick placed next to the tree casts a 6 foot shadow. How tall is the tree?
Answer:
pretty sure the tree's 20 feet
According to proportion if a tree casts a shadow of 40 feet it;s height is 20 feet.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
We know 1 yard is 3 feet.
Given, The shadow of the tree is 40 feet long. A yardstick placed next to the tree casts a 6-foot shadow and assuming the height of the tree to be x.
∴ x : 40 : : 3 : 6.
x/40 = 3/6.
6x = 120.
x = 20 feet.
learn more about proportion here :
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what is the numerical answer for 16 3/4?
Solve for the value of the variable: 7x+ 10 = 4x + 16
Enter the answer
Step-by-step explanation:
7x + 10 = 4x + 16
3x + 10 = 16 (subtract 4x on both sides)
3x = 6 (subtract 10 on both sides)
x = 2 (divide 3 on both sides)
Problem 8 :Mr. Lenin sold a chair at a loss of 15%. If he had sold at a
mark up rate of 10%, he would have got $100 more. What is the cost
price of the chair?
I need help someone please help me
Answer: That's easy but you have to offer more points
PLEASE HELP ME ASAP ITS DUE TODAY!!!!!! WILL GIVE BRAINLIEST TO ANSWER JUST PLEASE HELP ME!
Barry bought 212 pounds of lunch meat.
He ate 110 of the lunch meat when he got home.
Which equation shows how many pounds of lunch meat he ate?
CLEAR CHECK
212⋅110=14
212⋅110=2120
212÷110=25
212÷110=320
Answer:
barry is a fata-ss
212-110= 102 lbs of meat left over
Barry ate 110 lbs
please I need help asap
Answer:
JOWAIN NALANG KITA ANO G KA
Answer:
24
Step-by-step explanation:
25^2 = 7^2 + a^2
625 = 49 + a^2
576 = a^2
a = 24
What is the solution to the trigonometric inequality 2sin(x)+3> sin^2(x)
Answer:
[tex]-\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi[/tex]
Step-by-step explanation:
Given:
[tex]2\sin(x)+3> \sin^2(x)[/tex]
To Find:
The Solution of the above inequality
Explanation:
[tex]2\sin(x)+3> \sin^2(x).......(i)\\\text{let} \sin (x) = u\\\Rightarrow 2u+3> u^2\\\Rightarrow u^2-2u-3<0\\\Rightarrow u^2-3u+u-3<0\\\Rightarrow u(u-3)+1(u-3)<0\\\Rightarrow (u+1)(u-3)<0\\\Rightarrow -1<u<3\\\text{and since} \sin(x) = u\\\Rightarrow -1<\sin(x)<3[/tex]
[tex]\text{as if} \;a<u<b \Rightarrow a<u \;\text{and}\; u<b\\\Rightarrow -1<\sin(x) \; \text{and} \; \sin(x) <3\\-1<\sin(x) \; : -\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi\\\text{and}\; \sin(x) <3 : \text{true for all } x \in R\\\text{Now, combining the intervals we get}\\-\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi \; \text{and} \; \text{true for all } x \in R\\-\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi.[/tex]
At a bake sale, a total of 80 cookies were sold. If the ratio of chocolate chip cookies sold to oatmeal cookies sold was 9 : 1, how many chocolate chip cookies were sold?
Answer:
7,1
Step-by-step explanation:
80 divided by 9 times 8 i think
What's the y intercept
Answer:
3
Step-by-step explanation:
it intercepts the y axis at 3
Answer:
3 2
Step-by-step explanation:
I just know
Please help with these..... due tonight will give brainiest
Answer:
yes and no :)
What is the value of -2(x + 5)?
Answer:
Step-by-step explanation:
Here you go mate
Step 1
-2(x+5) Equation
Step 2
-2(x+5) Solve
-2(x)+-2(5)
Step 3
-2(x)+-2(5) Add them together
answer
-2x-10
Hope this helps
Type the missing number to complete the proportion.
74 books in 2 years
==
37 books in
years
Answer:
1
Step-by-step explanation:
74/2 = 37/x so u have to cross multipy these two so 74*x = 2*37
then 74x =74 so x=74/74 which is 1 :)
Mark is five feet tall. Anthony is 10% taller than Mark, and Kelsey is 7% taller than Mark. About how tall is Kelsey in feet and inches?
1) 5 feet and 11 inches.
2) 5 feet and 6 inches
3) 5.385 feet
4) 5 feet and 7 inches
There are
windows for every 3penguins.
There are
windows for every 11 penguin.
in the first 18 and the second 6
URGET HELP PLS!!!! THIS IS ABOUT LINEAR EQUATIONS AND I NEED THE ANSWER
Answer:
The answer is (7,3)
Step-by-step explanation:
the answer is the point where the two lines intersect.
What is the value of the expression k + (40) when k = 12 and b = 42
hey there!
If k = 12, then k + 40 = 12 + 40 = 52.
Hope it helps and have a great day!
Answer:
42
Step-by-step explanation:
this is rifght
Solve the system of equations
2y-3x=-27
5y+3x=6
Answer:
The answer to the first one is y=3/2x-27/2
The answer to the second one is y=-3/5x+6/5
Step-by-step explanation:
1. 2y-3x=-27
first, you want to add '3x' to both sides.
2y=3x-27
then you want to divide '2' from both sides. you do not want to use the 'y' because you want to keep the 'y' on its own side.
y=3/2x-27/2
2. 5y+3x=6
First, you want to subtract '3x' from both sides.
5y=-3x+6
Now, you want to divide '5' from both sides.
y=-3/5x+6/5
11 There are men and women at a meeting.
There are 28 women.
30% of the people at the meeting are men.
Work out the total number of people at the meeting.
Answer:
40 people
Step-by-step explanation:
Step one:
given data
let the total number of persons be x
There are 28 women
The number of men = 30% of x
Step two:
So the total person is given as
30/100*x+28= x
solve for x
0.3x+28= x
collect like terms
x-0.3x= 28
0.7x= 28
divide both sides by 0.7
x= 28/0.7
x= 40 people
It takes Audrey 35 hour to paint 25 square yards of wood to be used for making shelves.
How many square yards can she paint in 1 hour?
Answer:
0.71428571428 square yards
Step-by-step explanation:
Divide: 25 divided by 35=0.71428571428
Hope I helped!! :)
Sorry if it's wrong! :(
Pls mark brainlist!!
5. Use the angle addition formula to find the expression for cos (a+b).
Answer:
Step-by-step explanation:
Trigonometric identities are used to show the equality of expressions involving trigonometric functions. These trigonometric functions are the sine, the cosine, and the tangent as well as their respective reciprocals which are cosecant, the secant, and the cotangent,
Some trigonometric identities are:
tanθ = sinθ / cosθ; secθ = 1 / cosθ; cosecθ = 1 / sinθ; cotθ = 1 / tanθ = cosθ / sinθ
The angle addition formula for cos is given as:
cos(α + β) = cosαcosβ - sinαsinβ
Therefore:
cos(a + b) = cosacosb - sinasinb
Read the following statements then decide if, when combined, they present a convincing argument. You may need to refer back to your Polygon Graphic Organizer as you consider the following statements and decide if the conclusion is correct. Be sure to justify your reasoning.
Fact #1: A square has four sides of equal length.
Fact #2: A square is a rectangle because it has four right angles.
Fact #3: A rhombus also has four sides of equal length.
Conclusion: A rhombus is a rectangle.
9514 1404 393
Answer:
the conclusion is not justified. No statement is made regarding the angles of the rhombus
Step-by-step explanation:
A square is a rectangle because of its right angles, not because of its equal-length sides. The rhombus having equal-length sides does not qualify it as a rectangle. The conclusion of the argument is unsupported.