Answer:
(0, [tex]\frac{5}{3}[/tex] )
Step-by-step explanation:
3x + 6y = 10 → (1)
2x + 3y = 5 → (2)
multiplying (2) by - 2 and adding to (1) will eliminate y
- 4x - 6y = - 10 → (3)
add (1) and (3) term by term to eliminate y
- x + 0 = 0
- x = 0
x = 0
substitute x = 0 into either of the 2 equations and solve for x
substituting into (2)
2(0) + 3y = 5
3y = 5 ( divide both sides by 3 )
y = [tex]\frac{5}{3}[/tex]
solution is (0, [tex]\frac{5}{3}[/tex] )
Solve the equation [tex]\frac{1}{x+9} +\frac{1}{5}=\frac{1}{4}[/tex]
[tex]\boldsymbol{\sf{Your\:exersice \to \dfrac{1}{x+9}+\dfrac{1}{5}=\dfrac{1}{4} }}[/tex]
Variable x cannot be equal to −9 as division by zero is undefined. Multiply both sides of the equation by 20(x+9), the lowest common denominator of x+9,5,4.
[tex]\boldsymbol{\sf{20+20(x+9)\times\left(\dfrac{1}{5}\right)=5(x+9) }}[/tex]
Multiply 5 and 1/5 to get 4.
[tex]\boldsymbol{\sf{20+4(x+9)=5(x+9)}}[/tex]
Use the distributive property to multiply 4 by x+9.
[tex]\boldsymbol{\sf{20+4x+36=5(x+9)}}[/tex]
Add 20 and 36 to get 56.
[tex]\boldsymbol{\sf{56+4x=5(x+9)}}[/tex]
Use the distributive property to multiply 5 by x+9.
[tex]\boldsymbol{\sf{56+4x=5x+45}}[/tex]
Subtract 5x on both sides.
[tex]\boldsymbol{\sf{56+4x-5x=45}}[/tex]
Combine 4x and −5x to get −x.
[tex]\boldsymbol{\sf{56-x=45}}[/tex]
Subtract 56 from both sides.
[tex]\boldsymbol{\sf{-x=45-56}}[/tex]
Subtract 56 from 45 to get −11.
[tex]\boldsymbol{\sf{-x=-11}}[/tex]
Multiply both sides by −1.
[tex]\boldsymbol{\sf{x=11}}[/tex]
Rafi has $6,629 in an account that earns 10% interest compounded annually. To the nearest cent, how much interest will he earn in 4 years?
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$6629\\ r=rate\to 10\%\to \frac{10}{100}\dotfill &0.1\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &4 \end{cases}[/tex]
[tex]A=6629\left(1+\frac{0.1}{1}\right)^{1\cdot 4} \implies A \approx 9705.52~\hfill \underset{earned~interest}{\stackrel{9705.52~~ - ~~6629}{\approx\text{\LARGE 3076.52 }}}[/tex]
The number of books in Hannah's home library can be described by n(x) = 4x + 2, where x is the number of months that have passed since she began expanding her library. Describe how n(x) is related to its parent function and interpret the function in the context of the situation.
n(x) is a vertical dilation of scale factor 4 followed by a translation of 2 units upwards of the parent linear function.
How is n(x) related to the parent function?
The parent linear function is:
f(x)= x
And the function n(x) is:
n(x) = 4x + 2
If first we apply a vertical dilation of scale factor 4 to the parent linear function, we will get:
n(x) = 4*f(x)
And if now we apply a translation of 2 units upwards, then we get:
n(x) =4*f(x) + 2
Replacing f(x) by x we get:
n(x) = 4*x + 2
And we returned to n(x), so these are the transformations that define our function in terms to the parent function.
And the slope 4 means that each month 4 books are added, the y-intercept 2 means that she starts with 2 books.
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What is the value of -7 + (-12) + 81? Pls help asap
A: -100
B: -76
C: 62
D: 86
Answer: C: 62
Step-by-step explanation: -7 + -12 = -19
-19 + 81 = 62
If you cross 2 parrots that are heterozygous for color and barring, what is the possibility, in the form of a ratio, of a blue and unbarred parrot as offspring? green parakeets dominant (g) blue are recessive (g) barred wing pattern dominant (b) unbarred recessive (b).
1/16 is the ratio of a blue and unbarred parrot as offspring
Dihybrid cross:
Dihybrid cross is a cross between two individuals with two observed traits that are controlled by two distinct genes. The idea of a dihybrid cross came from Gregor Mendel when he observed pea plants that were either yellow or green and either round or wrinkled. Crossing of two heterozygous individuals will result in predictable ratios for both genotype and phenotype in the offspring. The expected phenotypic ratio of crossing heterozygous parents would be Deviations from these expected ratios may indicate that the two traits are linked or that one or both traits has a non-Mendelian mode of inheritance.
When two heterozygous parents for color (Gg) and barring (Bb) are crossed, each parent's genotype is GgBb. Each parent produces four gametes, such as GB, Gb, gB, and gb. As a result, the total number of offspring will be 16, as each parent produces four gametes. Nine will be G B_, three will be G bb, three will be ggB_, and one will be ggbb.
Therefore, 1/16 is the ratio of a blue and unbarred parrot as offspring
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Effie and Kristen live 23.6 km apart. They decided to cycle to the pool at the park, which is located between their homes. If Jennifer lives 5.2 km closer to the park, how far did they each cycle?
Answer:
I think 28.6
Step-by-step explanation:
How do you solve this problem?
Given the ordered pairs A(1,4) and B(0,-4), create a sine and cosine equation
The sine and cosine functions with the ordered pairs A(1,4) and B(0,-4) are given as follows:
Sine: f(x) = 4sin(π(x + π/2)).Cosine: g(x) = -4cos(πx).What is the definition of the trigonometric functions?Both the sine and the cosine functions have similar definitions, given as follows:
f(x) = asin(b(x+c))+d.g(x) = acos(b(x+c))+d.The meaning of the coefficients of the functions are presented as follows:
a is the amplitude of the trigonometric function.b: The period of the trigonometric function is of 2π/b.c is the phase shift of the trigonometric function.d is the vertical shift of the trigonometric function.The functions vary between -4 and 4, hence the amplitude is given as follows:
a = 4.
This is the standard oscillation for a trigonometric function with amplitude 4, between -4 and 4, hence the vertical shift is of:
d = 0.
The difference between the x-coordinates of the maximum and the minimum value is half the period, hence the period is of 2 x 1 = 2, and the coefficient b is:
2π/b = 2
b = π.
The cosine function has no phase shift, it just is inverted, as it should assume a value of 4 at x = 0, hence the definition is:
g(x) = -4cos(πx).
The sine function has a phase shift, as it should assume a value of -4 at -π/2, not π/2, hence it is shifted shift π/2 units, hence the definition is:
f(x) = 4sin(π(x + π/2)).
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twenty tiles are numbered through and are placed into box . twenty other tiles numbered through are placed into box . one tile is randomly drawn from each box. what is the probability that the tile from box is less than and the tile from box is either even or greater than ? express your answer as a common fraction.
The probability of first tile is less than 15, is 70% and the second tile is even or greater than 25, is 60%.
In the given question we have to find the probability of first tile is less than 15 and the second tile is even or greater than 25.
Tiles numbered 1 through 20 are placed in a box.
Tiles numbered 11 through 30 are placed in a second box.
One tile is randomly drawn from each box.
Now finding the probability of first tile is less than 15.
Since in first box tile is numbered as 1 to 20.
So the outcomes of less than 15 = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
So favourable outcome = 14
Total number of tile = 20
So the probability = 14/20 = 70%
Now finding the probability of second tile is even or greater than 25.
Since in second box tile is numbered as 11 to 30.
So the outcomes of even or greater than 25 = 12, 14, 16, 18, 20, 22, 24, 26, 27, 28, 29, 30
So favourable outcome = 12
Total number of tile = 20
So the probability = 12/20 = 60%
Hence, the probability of first tile is less than 15, is 70% and the second tile is even or greater than 25, is 60%.
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The right question
"Tiles numbered 1 through 20 are placed in a box. Tiles numbered 11 through 30 are placed in a second box. One tile is randomly drawn from each box. Find each probability. The first tile is less than 15 and the second tile is even or greater than 25."
The area of a parallelogram i 12 quare unit. One ide of the parallelogram i 18 unit long. The other ide i 6 unit long. Determine whether each dimenion could be the height of the parallelogram. Pick all correct. A. 2/3 unit
B. 3/2 unit
C. 2 unit
D. 3 unit
The possible heights of the parallelogram are 2/3 and 3
So, the correct option is A and C
The given expression:
area of a parallelogram, A = 12 square unit
a side of the parallelogram, = 18 units
another side of the parallelogram = 6 units
let,
the height of the parallelogram, h
The area of a parallelogram is given as;
Area = base (b) x height (h)
height (h) = Area/base(b)
From the given sides, the possible heights of the parallelogram are calculated as follows;
if the base, b = 18 units
height(h) = 12/18
= 2/3
Also, if the base, b = 6 units
height(h) = 12/6
= 2
Therefore, the possible heights of the parallelogram are 2/3 and 2
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Which postulate should be used to show that the
triangles are congruent?
SSS should be used to show that the triangles are congruent.
What is the congruent triangle?
Congruent triangles are two triangles that are the same size and shape. Two congruent triangles remain congruent even if we flip, turn, or rotate one of them. Two triangles must have the same angles and, as a result, must be congruent if their sides are the same.
From the given images of the triangles, it is clear that the the legs of the triangles are equal to each other.
If two legs of two triangles are equal, then the bases are equal to each other.
Thus to prove that the triangles are congruent to each other, apply SSS postulate.
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find the annual salary of a person who is paid $3,800.00 per month
Help! Im being timed
What statment about the graph is true?
The graph is a function with the domain {-6 < x < 0} and the range {0 ≤ y ≤ 5}.as stated
Describe range.The term "range" refers to every potential value in a graph's output.
The result of range is seen in the y coordinate, and the range of potential values is given here.
0 ≤ y ≤ 5
Describe domain.The term "domain" refers to every conceivable value in a graph's input.
The x coordinate is the input, and the extent of potential values is
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Find the solution for this system of equations. 12x 15y = 34 -6x 5y = 3 x = y =
The solution for this system of equations. 12x+ 15y = 34 -6x+ 5y = 3
is (x,y) =(2/3, 8/5)
Given a system of equations,
12x + 15y = 34 ------(1)
-6x + 5y = 3 ------(2),
To solve this we use the elimination method
In the elimination method, you either add or subtract the equations to get an equation in one variable.
Equation (1) + 2 × Equation (2),
We get,
(12x+15y=34)+(-12x+10y=6)
⇒ 15y+10y=34+6
⇒ 25y=40
⇒ y=40/25
⇒ y=8/5
From equation (2),
⇒ -6x+5(y)=6
⇒ -6x+5(8/5)=6
⇒ -6x+8=6
⇒ -6x=-2
⇒ x=2/3
Hence the solution for this system of equations. 12x 15y = 34 -6x 5y = 3
is (x,y =(2/3, 8/5)
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Given the roots 2, -3, 4 that has to pass through the point (1, 10). What type of polynomial is this?
The polynomial passes through the point (1, 10), and having the roots 2, -3, and 4 is a cubic polynomial.
What is a polynomial?A polynomial is a mathematical expression made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables.
The polynomial having the highest power of 3 is called the cubic polynomial.
Given that the roots 2, -3, and 4 that has to pass through the point (1, 10).
The polynomial will be written as,
Y = (x-2)(x+3)(x-4)
Y = x³+x²-6x-4x²-4x=24
Y = x³-3x²-10x+24
Therefore, the polynomial passes through the point (1, 10), and having the roots 2, -3, and 4 is a cubic polynomial.
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Between which two integers does √84 lie?
Answer:
Step-by-step explanation:
Between 9 and 10.
Why?
Because sq of 9 is 81 and sq of 10 is 100 which gives us the gesture that sq.rt of 84 is between 9&10.
Hence, Two integers are 9 and 10.
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in rational expression what is the answer of 7n-7 divide n-1
Which angles are adjacent to each other? Select all that apply.
PLEASE HELP!!!
the second and last one
The answer is
AEB and IAE
DEA and CED
how would you solve for v :
1/u + 1/v = 1/f
Step-by-step explanation:
[tex] \frac{1}{u} + \frac{1}{v} = \frac{1}{f} [/tex]
[tex] \frac{1}{v} = \frac{1}{f} - \frac{1}{u} [/tex]
[tex] \frac{1}{v} = \frac{u - f}{uf} [/tex]
[tex]v = \frac{uf}{u - f} [/tex]
How do you find the x for this ?
The area of a triangle i 247 inche. If the width i 19 inche find the height of the triangle
[tex]\textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh ~~ \begin{cases} b=\stackrel{width}{base}\\ h=height\\[-0.5em] \hrulefill\\ A=247\\ b=19 \end{cases}\implies 247=\cfrac{1}{2}(19)h \\\\\\ 494=19h\implies \cfrac{494}{19}=h\implies 26=h[/tex]
Please help me please
PLEASE HURRY WILL GIVE BRAINILY Find the area of this triangle.
155
175
260
Area = [?] units²
Answer:
Area = 1/2 * base * height
Area = 1/2 * 155 * 175
Area = 13,563.75
A solution to a system of linear equations in two variables is an ordered pair that.
The solution to a system of linear equations is the ordered pair (or pairs) that satisfies all equations in the system.
What ordered pair is a solution to the system of linear equations?
An equation is said to linear when it is in ax+ by = c form where a , b and c are real numbers . System of linear equation consist of a set of two or more equation with same variables. such as ,
a₁ x + b₁ y = c₁
a₂ x + b₂ y = c₂
A solution to a linear system is an ordered pair (x ,y) that solves both the equations .
To check that an ordered pair is a solution ,we have to substitute the corresponding values of our variables (x ,y) into our equations and see if they satisfy both the equations.
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The water level in a tream roe 2 1/4 inche every hour for 4 1/2 hour. How many inche did the water level rie during that time?
the water level in the stream rises by 10.125 inches.
What is water level?
The elevation of a sea, stream, lake, or reservoir's free surface in relation to a given vertical datum is referred to as the water level, also known as gauge height or stage.
Main body:
According to question water level in stream rises by 2.25 inches every hour.
Total rise can be calculated by using simple multiplication.
Total time for ride = 4.5 hours
Total rise in stream level = total time * total rise in 1 hour
= 2.25*4.5
= 10.125 inches
Therefore total rise in stream is 10.125 inches.
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Solve five and five-sixths minus three and three-fourths plus two and one-half equals blank line.
Step-by-step explanation:
55/12
hope this helps:)
Write an equation of the line that passes through (-4,-1) and is perpendicular to the line y =4/3x-1
Answer:
y = -3/4 -1
Step-by-step explanation:
The slope will be a negative recipricol of the original line
Edit : Grammar
A poorly-built machine has three components that can independently fail with a
probability of 1/3. The machine will fail if any component fails. What is the probability
that the machine fails?
===========================================================
Explanation:
Each component has 1/3 as the probability of failure.
1 - 1/3 = 2/3 is the probability a particular component works.
Each component is independent of one another, allowing us to multiply the probabilities: (2/3)*(2/3)*(2/3) = 8/27
8/27 is the probability that all three components work simultaneously, and it's the probability that the machine works.
1 - 8/27 = 19/27 represents the probability that at least one component fails, and hence causes the entire machine to fail also.
19/27 = 0.7037 = 70.37% approximately. It appears this machine fails pretty often.
Work out the lengths of sides a and b give your answer to the 1st decimal
The length of the side a = 9.43 cm and b = 12.04 cm
Consider the first triangle
The hypotenuse of the triangle = a
The base of the triangle = 5 cm
The length of the vertical side = 8 cm
Apply the Pythagorean theorem here
[tex]a= \sqrt{8^2+5^2}[/tex]
Find the square of the terms
a = [tex]\sqrt{64+25}[/tex]
a = [tex]\sqrt{89}[/tex]
a = 9.43 cm
Consider the second triangle
The hypotenuse of the triangle = 17 cm
The base of the triangle = 12 cm
The length of vertical side = y cm
Apply the Pythagorean theorem
b = [tex]\sqrt{17^2-12^2}[/tex]
b = [tex]\sqrt{289-144}[/tex]
b = [tex]\sqrt{145}[/tex]
b = 12.04 cm
Hence, the length of the side a = 9.43 cm and b = 12.04 cm
The complete question is
Work out the lengths of sides a and b give your answer to the 1st decimal
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(PLEASE HELP FAST) A 9-member team plans to run a 4-mile relay race. Distance markers are placed on the racecourse every 0.25 mile. a. Place an X on the number line at the approximate locations where the relay exchanges will take place. b. Will any of the relay exchanges take place at any of the 0.25-mile markers? If so, which one(s)? List the locations of all of the exchanges in decimal form.
Answer:
D or C
Step-by-step explanation:
Form a polynomial with real coefficients having the given degree and zeros. Degree 4; zeros: multiplicity 2 Question content area bottom Part 1 Let a represent the leading coefficient. The polynomial is . (Type an expression using x as the variable. Use integers or fractions for any numbers in the expression. Simplify your answer.)
The equation of the polynomial equation P(x) = (x + 3)²(x - 5)²
How to determine the polynomial equation?The given parameters are
Degree of polynomial = 4-3 is a zero of multiplicity 25 is the only other zeroThe sum of multiplicities of the polynomial equation must be equal to the degree.
This means that the multiplicity of the zero 5 is 2
The equation of the polynomial is then calculated as
P(x) = (x - zero)^multiplicity
So, we have
P(x) = (x - (-3))² * (x - 5)²
This gives
P(x) = (x + 3)²(x - 5)²
Hence, the equation is P(x) = (x + 3)²(x - 5)²
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Possible question
Form a polynomial with real coefficients having the given degree and zeros.
Degree 4;
Zeros: -3 and 5 with multiplicity 2