Answer:
20/50=40% So 50 to 70 percent increase is 40%.
20/70=about 28.57% decrease for 70 to 50.
So they aren't the same because the hundred percent are different numbers in this case.
Is a triangle with sides of 5 meters, 12 meters, and 13 meters a right triangle? Explain/Show your work.
Answer:
\(\huge\boxed{\sf Yes.}\)
Step-by-step explanation:
In a right angled triangle, the longest side is called hypotenuse.
So,
Hypotenuse = 13 m
The rest are:
Base = 5 m
Perpendicular = 12 m
Using Pythagoras Theorem to verify:
\((Hypotenuse)^2=(Base)^2+(Perpendicular)^2\)
Put the given data
(13)² = (12)² + (5)²
169 = 144 + 25
169 = 169Since, both left hand side and right hand side are equal, this means the triangle is a right-angled triangle.
\(\rule[225]{225}{2}\)
3(–2p + 2) simplfy
need this done plz giving 10 points
Answer:
Step-by-step explanation:
3( -2p +2); distribute 3 over parenthesis
-6p + 6
A tank with capacity of 600 gal of water originally contains 200 gal of water with 100 lb of salt in solution. Water containing 1 lb of salt per gallon is entering at a rate of 3 gal/min, and the mixture is allowed to flow out of the tank at a rate of
Answer:
Step-by-step explanation:
From the information given:
Tank's Capacity = 600 gal
Original content of water = 200 gal
Salt solution = 100 lb
In the tank:
Suppose x(t) = amount of salt at time (t); &
V(t) = volume of water
Then,
V(t) = 200 + t
and \(x'(t) = 3 - \dfrac{2x(t)}{200+t}\)
From the above linear equation, the integrating factor can be computed as:
\(x(t) = \Bigg(e^{\int \dfrac{2}{200+t}} \Bigg)^{dt}\)
\(= e^{2 \ log (200+t)}\)
= (200 + t)²
The general solution can now be expressed as:
\(x(t) = \dfrac{1}{(200+t)^2}\Bigg( \int 3(200+t)^2 \ dt +C\Bigg)\)
We know that C = integrating factor, thus taking the integral:
\(x(t) = \dfrac{(200+t)^3 +C}{(200+t)^2}\)
At the initial condition, x(0) = 100
∴
\(100= \dfrac{(200)^3 +C}{(200)^2}\)
C = ((200)²×100) - 200³
C = -4 × 10⁶
Hence, at any time t, the amount of salt is:
\(x(t) = \dfrac{(200+t^2) - 4\times 10^6}{(200+t)^2}\)
If the slope of the regression line is calculated to be 2.5 and the intercept 16 then the value of Y when X is 4 is; a) 26 b) 16 c) 2.5d) 66.5 Leave blank
The value of Y when X = 4 in the regression line that has the slope of 2,5 is a) 26
The equation of a straight line with slope m and y-intercept b is given by :
y = mx + b.
Where
1. y is the dependent variable (i.e., the value of y depends on x)
2. x is the independent variable
3. m is the slope of the line, representing the rate of change of y with respect to x
4. b is the y-intercept, the point where the line intersects the y-axis when x = 0.
This equation can be used to describe the relationship between two variables, and it can be used to make predictions about the value of y for a given value of x, or to find the value of x for a given value of y.
From the question we have the following information :
1. Slope ( or m ) is 2.5
2. The intercept ( y-intercept or b ) is 16
So, using the values given (slope = 2.5, y-intercept = 16), we have:
y = mx + b
y = 2.5x + 16
When X is 4, substituting X with 4 in the equation gives us:
y = 2.5 * 4 + 16 = 26
So the value of Y when X is 4 is 26. Answer: a) 26.
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If these numbers represent elevations in meters, which is the farthest away from sea level?
A:7
B:-3
C:1/2
D:-0.8
E:0.8
F:-1/10
G:-2
Answer:
7
Step-by-step explanation:
7 the numbers drop which would put 7 farthest away from 0
PLEASE help ASAP.
Your paycheck shows that you had earned $342. for working 36 hours
last week (before taxes). What is your hourly rate? *
5 points
O $9
O $9.75
O $9.25
$9.50
In a group of 343 children, 104 have a swing set, 126 have a trampoline and 42 have a swing set and trampoline. How many have a swing set only?a. 20b. 72c. 62d. 54e. 52f. none of above
Answer:
None of the above
Multiple(x-4)(2x+3) using the distributive property
Answer:
See Below
Step-by-step explanation:
x(2x) - 4(2x) + x(3) - 4(3)
= 2x² - 8x + 3x -12
= 2x²-5x-12
Can you please help me out with this problem please and thank you so much
Answer:
G. 0.3
Explanation:
We know that
On April 1: Berry weight = 0.922 grams
On April 12: Berry weight = 0.589 grams
Therefore, the difference in weight is
0.922 grams - 0.589 grams = 0.333 grams
This means that the difference between the weight of the berry on April 1 and April 12 is 0.333 grams.
Now which answer choice is closest to 0.333 grams?
The answer is, choice G is the closest choice.
Hence, choice G, 0.3 grams is the correct answer.
-7y= -91
I need help!
Answer:
y=13
Step-by-step explanation:
divide each term by -7 and simplify
Answer:
y = 13
Step-by-step explanation:
-7y = -91
y = -91/-7
y = 13
Gift brainliest please D: If you hover over this answer, cllck the crown at the bottom.
Find the average rate of change of y=log3 x over the interval 1≤x≤3. Write your answer as a fraction in the simplest form.
Answer:
If the interval is 1 < x < 3, then you are examining the points (1,4) and (3,16). From the first point, let a = 1, and f (a) = 4. From the second point, let b = 3 and f (b) = 16. The average rate of change is 6 over 1, or just 6.
The average rate of change is \(\frac{6}{25}\)
What is rate of change over an interval?'When we calculate average rate of change of a function over a given interval, we’re calculating the average number of units that the function moves up or down, per unit along the x-axis. We could also say that we’re measuring how much change occurs in our function’s value per unit on the x-axis.'
According to the given problem,
Rate of change formula = \(\frac{f(b) - f(a)}{b-a}\)
y = log3x
⇒ a= 1
b= 3
Therefore,
⇒ \(\frac{log(3*3) - log(3*1)}{3-1}\)
⇒ \(\frac{log9 - log3}{2}\)
⇒\(\frac{1}{2}\) log\((\frac{9}{3})\)
⇒ \(\frac{1}{2}\) * log 3
⇒ \(\frac{6}{25}\)
Hence we can conclude the rate of change as \(\frac{6}{25}\)
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does anyone know the answer?
Answer:
is it correct please tell
-2.666
What is the gradient of the graph shown?
Answer:
-1
Step-by-step explanation:
Gradient is another word for slope, and slope can be defined as rise/run.
From the point (0,0) to (1,-1), it moved one unit down and one unit to the right. The slope for this line can be represented as -1/1, which is equal to -1.
Therefore, the gradient of the graph shown is -1.
What’s the correct answer for this?
Answer:
c
Step-by-step explanation:
Answer:
P=19.2 ft
Step-by-step explanation:
ACCORDING TO THE THEOREM,
BC=2(DE)
So BC =2(3.2)
BC=6.4 ft
Now
AB=2(EF)
AB=2(4)
AB=8 ft
Now
AC = 2(DF)
AC= 2(2.4)
AC=4.8 ft
Now we're gonna find the perimeter which is sum of all sides
Perimeter=4.8+8+6.4
P= 19.2 ft
Newton's Law of Gravitation states that two bodies with masses m1 and m2 attract each other with a force F, where r is the distance between the bodies and G is the gravitational constant. F = G(m_1m_2)/r^2 Use Newton's Law of Gravitation to compute the work W required to propel a 1100 kg satellite out of the earth's gravitational field. You may assume that the earth's mass is 5.98✕1024 kg and is concentrated at its center. Take the radius of the earth to be 6.37✕106 m and G = 6.67✕10-11 Nm2/kg2. (Round your answer to three significant digits.)
The two bodies are being drawn together by a force of 10812 N, according to Newton's Law of Gravitation.
Every particle in the universe is drawn to every other particle with a force that is directly proportional to the product of their masses and inversely proportional to their separation from one another, according to Newton's Law of Universal Gravitation.
Symbolically, Newton came to the following conclusion on the strength of the gravitational force:
F = G(m₁ × m₂) / r²
F is the gravitational force between two bodies, m1 and m2 are the bodies' masses, r is the distance between their centres, and G is the gravitational constant of the universe.
According to the query,
satellite's mass is m1 = 1100 kg.
mass of earth = 5.98 ×10²⁴ kg
Radius of the earth = 6.37 × 10⁶ m
G = 6.67 × 10⁻¹¹ Nm² / kg²
Force = G(m₁ × m₂) / r²
Substituting the values,
F = 6.67 × 10⁻¹¹( 1100 × 5.98 ×10²⁴) /( 6.37 × 10⁶)²
=> F = 6.67 × 1100 × 5.98 × 10¹³ / 40.58 × 10¹²
=> F = 43,875.26 × 10 / 40.58
=> F = 10812 N
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What is the area, in square centimeters, of the trapezoid below?
8.9 cm
5.5 cm
5.5 cm
Answer:
0.4m²
Step-by-step explanation:
use the formular for tripezoid and only substitute a b and h
Please help will mark brainliest
answer should be A since its by months C would be Y and M be X since its charging per movire
Given l ∥ m ∥ n, find the value of x.
Answer:
x=8
Step-by-step explanation:
Since m and n are parallel, the two given angles are equal (opposite exterior). Therefore,
7x-2=5x+14
7x-5x=14+2
2x=16
x=8
Please help.
Is it no solution, one solution or infinitely many
Solution.
A line’s equation is given in point-slope form:
y−6=(−23)(x+6)
This line’s slope is
Answer:
-23
Step-by-step explanation:
You want the slope of the line whose equation is y -6 = -23(x +6).
Point-slope formThe point-slope form of the equation of a line is ...
y -k = m(x -h) . . . . . . . line with slope m through point (h, k).
Pattern matchingMatching the given equation to the above pattern, we see ...
y -6 = -23(x +6) . . . . . . line with slope -23 through point (-6, 6).
The line's slope is -23.
__
Additional comment
While it is not impossible, it would be unusual for a line to have a slope of -23 in a problem like this. Consistent with equation mangling often seen on Brainly, we suspect the equation is actually ...
y -6 = (-2/3)(x +6)
and the slope is actually -2/3.
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Given f(x) = 3x − 4 and g(x) = f(2x), which table represents g(x)? x g(x) 1 −2 2 4 3 10 x g(x) 1 −1 2 0 3 5 x g(x) 1 2 2 4 3 6 x g(x) 1 2 2 8 3 14
By evaluating g(x), we conclude that the correct table is:
The correct table is:
x g(x)
1 2
2 8
3 14
Which table represents g(x)?Here we know that:
f(x) = 3x - 4
And function g(x) is defined as:
g(x) = f(2x) = 3*(2x) - 4= 6x - 4
Evaluating g(x) in the values in the tables, x = 1, 2, 3, etc..., we will get:
g(1) = 6*1 - 4 = 6 - 4 = 2
g(2) = 6*2 - 4 = 12 - 4 = 8
g(3) = 6*3 - 4 = 18 - 4 = 14
Then the correct table is:
x g(x)
1 2
2 8
3 14
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Find the sum of the infinite geometric sequence.
If the answer is not an integer, enter it as a fraction in simplest form.
The sum of the infinite geometric sequence is 3 3/4
How to find the sum of the infinite geometric sequence.From the question, we have the following parameters that can be used in our computation:
The geometric sequence
In the geometric sequence, we have
First term, a = 3/5¹⁻¹
a = 3
Also, we have
Common ratio, r = 1/5
The sum of the infinite geometric sequence is calculated as
Sum = a/(1 - r)
So, we have
Sum = 3/(1 - 1/5)
Evaluate
Sum = 3 3/4
Hence, the sum of the infinite geometric sequence is 3 3/4
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If you know this please help
1) given
2) given
3) Definition of linear pair
4) If alternate interior angles are congruent, then the lines are parallel.
How many tens are in 6 hundreds
Answer:
60
Step-by-step explanation:
10 x 6 = 60
Hope this helped! :)
Two angles are complementary. mZT is (3x + 17)° and mZW is 19°
Solve for x and for mZT.
Answer:
x = 18
mZT = 71º
Step-by-step explanation:
Complementary angles total 90º
(3x + 17) + 19 = 90
Subtract 19 from both sides
3x + 17 = 71
mZT = 71º
Subtract 17 from both sides
3x = 54
Divide both sides by 3
x = 18
which expression is a cube root of -2i?
The cube root of -2i,
⇒ ∛2[ cos(π/6) + i sin(π/6) ]
We can represent -2i in polar form as,
r(cosθ + i sinθ)
by computing its magnitude and angle.
The magnitude of -2i is 2
Since the absolute value of any imaginary number is equal to its magnitude.
To find the angle θ,
We can use the fact that the tangent of an angle is equal to the ratio of the opposite side to the adjacent side.
In this case,
The opposite side is -2 and the adjacent side is 0.
Therefore, we have tanθ = -2/0, which is undefined.
However,
We can use the fact that the cube root of a complex number is equal to the cube root of its magnitude times exp(iθ/3) to find the cube root of -2i.
So, the cube root of -2i is equal to the cube root of 2 times exp(iθ/3).
Now, we need to find the value of θ/3. Since θ is undefined,
we will represent it as π/2 + 2πn,
where n is any integer.
So, θ/3 = (π/2 + 2πn)/3 = π/6 + 2πn/3.
Therefore, the cube root of -2i is equal to
⇒ ∛2 [ cos(π/6 + 2πn/3) + i sin(π/6 + 2πn/3) ]
Now put n = 0
⇒ ∛2[ cos(π/6) + i sin(π/6) ]
This is the final form of the cube root of -2i in the required form.
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if a(x + 1) = 2x + 3a, and a ≠ 0, then what is x in terms of a
Answer:
\(x = \frac{2a}{a - 2} \)
Write an equivalent expression for 12x+36 by factoring
Answer:
12(x+3)
Step-by-step explanation:
12 can be factored out from both sides
once you do that your are left with
12(x+3)
What is the value of x?
Enter your answer in the box.
Answer:
x = 25
Step-by-step explanation:
Use Pythagoras' Theorem \(a^s+b^2=c^2\)
where a and b are the legs and c is the hypotenuse of a right triangle
\(\implies 7^2+24^2=x^2\)
\(\implies 49+576=x^2\)
\(\implies 625=x^2\)
\(\implies x=\sqrt{625}\)
\(\implies x=\pm25\)
\(\implies x = 25\) only, as distance is positive
Use Pythagorean theorem
\(\\ \rm\longmapsto x^2=24^2+7^2\)
\(\\ \rm\longmapsto x^2=576+49\)
\(\\ \rm\longmapsto x^2=625\)
\(\\ \rm\longmapsto x=25\)
5 pts 1 Details
The drug Lipitor is meant to reduce total cholesterol. In clinical trials, 213 out of 333 patients taking 10mg
of Lipitor daily complained of flu-like symptoms. A patient advocacy group claims that the proportion of
patients taking Lipitor who experience flu-like symptoms is at least 70%. Use a 0.05 significance level to
test the claim.
Claim: Select an answer which corresponds to [Select an answer
Opposite: Select an answer which corresponds to [Select an answer
stion 3
The test is: Select an answer
The test statistic is:
(to 2 decimals)
The p-value is:
(to 4 decimals)
Based on this we: Fail to reject the null hypothesis
Conclusion There does
appear to be enough evidence to support the claim that the
proportion of patients taking Lipitor who experience flu-like symptoms is at least 70%.
The claim can be said that the proportion of patients taking Lipitor who experience flu-like symptoms is at least 70%.
Opposite: The proportion of patients taking Lipitor who experience flu-like symptoms is less than 0.7.
The test can be said that the one-tailed z-test for proportions that has a significance level of 0.05.
The test statistic is z =- -1.96
The p-value is: 0.0406.
Based on this we: reject the null hypothesis.
Conclusion: we can say that there is not enough evidence to support the claim that the proportion of patients taking Lipitor who experience flu-like symptoms is at least 70%.
Describe some flu-like symptoms?The flu-like symptoms includes fever, chills, headache, muscle or body aches, cough, sore throat, runny nose, and diarrhea.
We can test the statistic using the formula:
z = (/p - p) / √(p x (1-p) / n)
where /p = sample proportion = 213/333 = 0.639
p = hypothesized proportion under the null hypothesis = 0.7
n = sample size = 333
z = (0.639 - 0.7) / √(0.7 * (1-0.7) / 333)
z = -1.96
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