Answer:
Slope is 2, and the y-intercept is (0, 4).
Step-by-step explanation:
-2x+y=4
y=4-(-2x)
y=4+2x
y=2x+4
y=mx+b where m=slope and b=y-intercept,
m=2 and b=(0, 4).
Find the diameter of the circle with the given circumference. Use 3.14 for i.
C= 23 cm
The diameter is about
cm.
(Round to the nearest tenth as needed.)
The points (-6,r) and (2,5) lie on a line with slope -1/4. Find the missing coordinate r.
Answer:
r = 7
Step-by-step explanation:
Calculate the slope using the slope formula then equate to - [tex]\frac{1}{4}[/tex]
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 6, r ) and (x₂, y₂ ) = (2, 5 )
m = [tex]\frac{5-r}{2-(-6)}[/tex] = [tex]\frac{5-r}{2+6}[/tex] = [tex]\frac{5-r}{8}[/tex] , then
[tex]\frac{5-r}{8}[/tex] = - [tex]\frac{1}{4}[/tex] ( multiply both sides by 8 to clear the fractions )
5 - r = - 2 ( subtract 5 from both sides )
- r = - 7 ( multiply both sides by - 1 )
r = 7
Answer:
[tex]\displaystyle 7[/tex]
Step-by-step explanation:
[tex]\displaystyle \frac{-y_1 + y_2}{-x_1 + x_2} = m\\ \\ \frac{-r + 5}{6 + 2} = m \Rightarrow \frac{-r + 5}{8} \hookrightarrow -\frac{2}{8} = -\frac{1}{4} \\ \\ \boxed{7 = r}[/tex]
I am joyous to assist you at any time.
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Find the area of this shape.
Not to scale
14.1 cm
15.5 cm
12.0 cm
17.4 cm
Answer:
220.35
Step-by-step explanation:
Think of this rectangle of as two horizontal rectangles. The area of the bottom one is expressed by 17.4*12
The area of the top rectangle can be expressed by 3.3*3.5, as 17.4-14.1=3.3 and 15.5-12=3.5.
Add the products for the whole area.
What is the equation of the blue line?
Answer: (1,4) (2,7) (3,10)
HOpE iT hElpS
plS mArK As bRaiNlieSt -wiggly
Step-by-step explanation:
How many trolley cars are needed to hold all the passengers? Write as a mixed number
Answer:
[tex]46\frac{1}{8}[/tex]
Step-by-step explanation:
Formulate
[tex]1845\div40[/tex]
Calculate
[tex]\frac{1845}{40}[/tex]
Cross out the common factor
[tex]\frac{369}{8}[/tex]
Write [tex]\frac{369}{8}[/tex] as a mixed fraction
[tex]46\frac{1}{8}[/tex]
I hope this helps you
:)
Translate the sentence into an inequality.
The difference of c and 9 is greater than 23.
Answer:
c-9>23.
Step-by-step explanation:
The difference in an equation is c-9. Greator is >. So c-9>23.
Please help me !! i do not understand this
Graphing a line by first finding its x and y intercepts
Answer:
x-intercept is 5
y-intercept is -6
Step-by-step explanation:
To find x-intercept put y=0
since 6x-5y=30 then 6x=30
x=30/6 = 5
To find y-intercept put x=0
since 6x-5y=30 then -5y=30
y=30/-5 = -6
If a speedometer's absolute error is 1 mph and it measures a speed of 52 mph, what is the relative error of this measurement expressed as a percentage? (Round to the nearest tenth of a percent if necessary.
Relative error = absolute error / measured speed
Relative error = 1/52 = 0.01923
Percent = 0.01923 x 100 = 1.923%
Rounded to nearest tenth = 1.9%
simplify this expression: 2(10)+2(x-4)
Answer:
16+ 2x
Step-by-step explanation:
2(10) +2(x-4)
20 + 2x -8
16+ 2x
Thats the one i meant pleaseee helppppppppp fastttttttttt
i alr have a c in this class!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
divide it into smaller shapes and find the area then find the sum
Solve equation by using the quadratic formula.
6x² – 2x=8
Answer:
[tex]x = \frac{4}{3}- 1[/tex]
x=4/3 , -1
3a + 5b = 26 ; a + 5b = 22
Answer:
[tex]\boxed{a=2,\:b=4}[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}3a+5b=26\\ a+5b=22\end{bmatrix}[/tex]
Isolate a from 3a + 5b = 26,
[tex]a=\cfrac{26-5b}{3}[/tex]
[tex]\begin{bmatrix}\cfrac{26-5b}{3}+5b=22\end{bmatrix}[/tex]
[tex]\begin{bmatrix}\cfrac{26+10b}{3}=22\end{bmatrix}[/tex]
Now, Isolate b for
[tex]\cfrac{26+10b}{3}=22\:\:\boxed{b=4}[/tex]
Now, Substitute b=4
[tex]a=\cfrac{26-5\times \:4}{3}[/tex]
[tex]\cfrac{26-5\times \:4}{3}\:\:\boxed{a=2}[/tex]
[tex]\boxed{a=2,\:b=4}[/tex]
~
PLS HELP ILL MARK BRAINLIEST!!!
Nate deposited $3 into a savings account. He then saves $2 per week. write a linear function for this situation where x = the number of weeks and y = the total amount in the account!
Answer:
y=2x+3
Step-by-step explanation:
y=mx+b
Answer:
y=$3 + $2x.
Step-by-step explanation:
y=3+2x. Make a table, at week 1 Nate has $2 + the $3 he started with. At week 2, Nate has $4 plus the $3 he started with. And so on. Plug the number of weeks in for x and solve for y for the total at any number of weeks given.
The point ( 9, y ) is on the line in the graph below. Find the correct value for y.
Answer:
the answer send me a 100dollar gift card
please answer this question
[tex]\bold{\huge{\underline{ Solution }}}[/tex]
- I have used different colours for indicating different process
- I used brown colour to indicate steps
- I used green colour for explaining solution
- Pink colour for known properties of integration
- Purple colour for the middle steps that are optional.
[Note :- For solving such questions it is mandatory that you should know all the functions and it's derivatives ]
Required Answer for the given question[tex]\sf{=}{\sf{\dfrac{ x^{2}}{2}}}{\sf{ + 7x + 67x .In| x - 4 | - 30.In| x - 3 | + c }}[/tex]
Answer:
[tex]\displaystyle \large{\frac{x^2}{2}+7x+67\ln |x-4|-30\ln |x-3| + C}[/tex]
Step-by-step explanation:
To find an integration of this function, first, you must know these integration methods and differences of them.
Partial Fraction Method - A method that separates the denominator into two brackets and solve the equation for two variables.Long Division Method - A method that uses long division to rewrite the fraction to make it easier to integrate.These methods above are common when it comes to integrating fractional functions, except there are differences when to use these methods.
Partial Fraction technique has to be used when the degree of numerator is lower than the degree of denominator. Basically, proper fraction.Examples (of these integrands that require partial fraction technique)
[tex]\displaystyle \large{\int \frac{3}{x^2-5x+6} \ dx}\\\displaystyle \large{\int \frac{x+2}{x^2-4} \ dx}[/tex]
Long Division technique has to be used when the degree of numerator is greater than the degree of denominator.Examples (of these integrands that require long division)
[tex]\displaystyle \large{\int \frac{x^2+5x+6}{x+2} \ dx}\\\displaystyle \large{\int \frac{x^4+3}{x} \ dx }[/tex]
Therefore, from the given integral, the integrand requires long division method. (See attachment for long division.)
After long division, we should get:
[tex]\displaystyle \large{\int x+7+\frac{37x-81}{x^2-7x+12} \ dx}[/tex]
Recall important properties of integral such as:
[tex]\displaystyle \large{\int [f(x) \pm g(x)] \ dx = \int f(x) \ dx \pm \int g(x) \ dx}[/tex]
Hence:
[tex]\displaystyle \large{\int x \ dx + \int 7 \ dx + \int \frac{37x-81}{x^2-7x+12} \ dx}[/tex]
Recall important integration formula for polynomial and constant:
[tex]\displaystyle \large{\int x^n \ dx = \frac{x^{n+1}}{n+1} + C}\\\displaystyle \large{\int x \ dx = \frac{x^2}{2} + C}\\\displaystyle \large{\int k \ dx = kx + C \ \ \tt{(k \ \ is \ \ a \ \ constant.)}[/tex]
Therefore:
[tex]\displaystyle \large{\frac{x^2}{2}+7x+\boxed{\int \frac{37x-81}{x^2-7x+12} \ dx}}[/tex]
From the boxed integral above, we cannot evaluate it by default. From what I said, if the degree of numerator is less than the degree of denominator, we’ll use partial fraction technique.
Therefore, factor the denominator:
[tex]\displaystyle \large{\frac{37x-81}{(x-4)(x-3)}}[/tex]
Set to A/x-4 and B/x-3
[tex]\displaystyle \large{\frac{37x-81}{(x-4)(x-3)} = \frac{A}{x-4} + \frac{B}{x-3}}[/tex]
Multiply both sides by (x-4)(x-3).
[tex]\displaystyle \large{\frac{37x-81}{(x-4)(x-3)} \cdot (x-4)(x-3)= \frac{A}{x-4} \cdot (x-4)(x-3) + \frac{B}{x-3} \cdot (x-4)(x-3)}\\\displaystyle \large{37x-81= A(x-3) + B(x-4)}\\\displaystyle \large{37x-81= Ax-3A+Bx-4B}\\\displaystyle \large{37x-81= (A+B)x-(3A+4B)}[/tex]
Then compare the coefficients:
[tex]\displaystyle \large{\left \{ {{A+B=37} \atop {3A+4B=81}} \right}[/tex]
Solve the simultaneous equation for A and B.
[tex]\displaystyle \large{\left \{ {{A=37-B} \atop {3A+4B=81}} \right}\\\displaystyle \large{\left \{ {{A=37-B} \atop {3(37-B)+4B=81}} \right}\\\displaystyle \large{\left \{ {{A=37-B} \atop {111-3B+4B=81}} \right}\\\displaystyle \large{\left \{ {{A=37-B} \atop {111+B=81}} \right}\\\displaystyle \large{\left \{ {{A=37-B} \atop {B=81-111}} \right}\\\displaystyle \large{\left \{ {{A=37-B} \atop {B=-30}} \right}\\\displaystyle \large{\left \{ {{A=67} \atop {B=-30}} \right}\\[/tex]
Therefore, A = 67 and B = -30. Substitute the values in:
[tex]\displaystyle \large{\int \frac{67}{x-4}-\frac{30}{x-3} \ dx}\\\displaystyle \large{\int \frac{67}{x-4} \ dx -\int \frac{30}{x-3} \ dx}[/tex]
Recall the integration formula for above:
[tex]\displaystyle \large{\int \frac{k}{x-a} \ dx = \int k \cdot \frac{1}{x-a} \ dx = k\ln |x-a| + C}[/tex]
Therefore:
[tex]\displaystyle \large{\int \frac{37x-81}{x^2-7x+12} \ dx = \int \frac{67}{x-4}-\frac{30}{x-3} \ dx = 67\ln |x-4| - 30\ln |x-3|}[/tex]
Back from this:
[tex]\displaystyle \large{\frac{x^2}{2}+7x+\boxed{\int \frac{37x-81}{x^2-7x+12} \ dx}}[/tex]
Substitute in:
[tex]\displaystyle \large{\frac{x^2}{2}+7x+67\ln |x-4|-30\ln |x-3| + C}[/tex]
Therefore the solution is:
[tex]\displaystyle \large \boxed{\frac{x^2}{2}+7x+67\ln |x-4|-30\ln |x-3| + C}[/tex]
help me to solve this question fast
Answer:
180 cm³
Step-by-step explanation:
A rectangular prism with length, L, width, W, and Height, H, has a volume, V, given by the formula below.
V = LWH
Think of this solid as being a rectangular prism with a smaller rectangular prism taken out of the top right corner.
V = 6 cm × 5 cm × 8 cm - 3 cm × 5 cm × 4 cm
V = 240 cm³ - 60 cm³
V = 180 cm³
Admission to a museum costs $12 for adults and $7 for children. A group of 35 people attending the museum paid a total of $315 in admission fees. Write a system of equations to represent the situation. Let a represent the number of adult admissions, and let c represent the number of child admissions.
Answer:
see explanation
Step-by-step explanation:
a represents adults and c represents children , then the system of equations is
a + c = 35 → (1)
12a + 7c = 315 → (2)
Answer:
a + c = 35 → (1)
12a + 7c = 315 → (2)
Step-by-step explanation:
a + c = 35 → (1)
12a + 7c = 315 → (2)
find value of x in x+10=20 with equation
Answer:
x = 10Step-by-step explanation:
[tex]x + 10 = 20\\x = 20 - 10\\x = 10[/tex]
Answer:
10
Step-by-step explanation:
x+10=20
x=20-10
=10
I need help with this pls help!
I need help
What are the dimensions of the rectangle shown below? Remember to use the axes on the coordinate grid to help you.
A coordinate grid is shown with scale from negative 14 to 0 to positive 14 on both x- and y-axes at increments of 2. A figure ABCD is shown with A at ordered pair negative 10, 2, B at ordered pair 2, 2, C at ordered pair 2, negative 6, and D at ordered pair negative 10, negative 6.
6 units × 4 units
8 units × 6 units
12 units × 8 units
18 units × 12 units
Answer:
Its C: 12 units × 8 units are the dimensions of the rectangle
Step-by-step explanation:
Which graph best represents the solution set to this system of inequalities?
x + y < 1
x − y ≤ 2
A.
B.
C.
D.
©
Answer:
(3/2, -1/2)
Step-by-step explanation:
add the 2 inequalities together.
you get 2X<3 so x<3/2. plug X back in and solve for y and you get y= -1/2
How do I turn 3/8 into a decimal without a calculator?
Please dum it down for me.
Thank you so much!!!!!
step 1
[tex]\begin{matrix}\:\:\:\:\emptyspace0.\:\:\:\:\:\:\:\:\:\:\:\\ 8\overline{|\smallspace3.0}\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace0}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\emptyspace3\emptyspace0\:\:\:\:\:\:\:\:\:\:\end{matrix}[/tex]
step 2
[tex]\begin{matrix}\:\:\:\:\emptyspace0.\emptyspace3\:\:\:\:\:\:\:\:\:\\ 8\overline{|\smallspace3.0\cdot \:0}\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace0}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\emptyspace3\emptyspace0\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace2\emptyspace4}\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\emptyspace6\emptyspace0\:\:\:\:\:\:\:\:\end{matrix}[/tex]
step 3
[tex]\begin{matrix}\:\:\:\:\emptyspace.\emptyspace3\emptyspace7\:\:\:\:\:\:\:\\ 8\overline{|\smallspace 3 0\ \ \:}\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace0}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\emptyspace3\emptyspace0\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace2\emptyspace4}\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\emptyspace6\emptyspace0\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\underline{\emptyspace5\emptyspace6}\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\emptyspace4\emptyspace0\:\:\:\:\:\:\end{matrix}[/tex]
step 4
[tex]\begin{matrix}\:\:\:\:\epe0.\ece3\empt7\e5\:\:\:\:\:\\ 8\overline{|\sm30 \ \ \ \ }\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace0}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\em3\e0\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace2\emptyspace4}\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\eme6\ece0\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\underline{\empte5\ee6}\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\ee4\ece0\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\underline{\ee4\epace0}\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\:\:\e0\:\:\:\:\:\:\end{matrix}[/tex]
Answer:
3.75
Step-by-step explanation:
[tex]\mathrm{Write\:the\:problem\:in\:long\:division\:format}[/tex]
[tex]\begin{matrix}8\overline{|\smallspace3.0}\:\:\:\:\:\:\:\:\:\:\:\:\end{matrix}[/tex]
[tex]\mathrm{Divide\;30\;by\;8\;to\;get\;3}[/tex]
[tex]\begin{matrix}\:\:\:\:\:\:\emptyspace3.\:\:\:\:\:\:\:\:\:\:\:\\ 8\overline{|\smallspace30.0}\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace2\emptyspace4}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\emptyspace6\emptyspace0\:\:\:\:\:\:\:\:\:\:\end{matrix}[/tex]
[tex]\mathrm{Divide\;60\;by\;8\;to\;get\;7}[/tex]
[tex]\begin{matrix}\:\:\:\:\:\:\emptyspace3.\emptyspace7\:\:\:\:\:\:\:\:\:\\ 8\overline{|\smallspace30.0\cdot \:0}\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace2\emptyspace4}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\emptyspace6\emptyspace0\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\underline{\emptyspace5\emptyspace6}\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\emptyspace4\emptyspace0\:\:\:\:\:\:\:\:\end{matrix}[/tex]
[tex]\mathrm{Divide\;40\;by\;8\;to\;get\;5}[/tex]
[tex]\begin{matrix}\:\:\:\:\:\:\emptyspace3.\emptyspace7\emptyspace5\:\:\:\:\:\:\:\\ 8\overline{|\smallspace30.0\cdot \:0}\:\:\:\:\:\:\:\\ \:\:\:\:\underline{\emptyspace2\emptyspace4}\:\:\:\:\:\:\:\:\:\:\:\:\\ \emptyspace6\emptyspace0\:\:\:\:\:\:\:\:\:\:\\ \underline{\emptyspace5\emptyspace6}\:\:\:\:\:\:\:\:\:\:\\ \emptyspace4\emptyspace0\:\:\:\:\:\:\:\:\\ \underline{\emptyspace4\emptyspace0}\:\:\:\:\:\:\:\:\\ \emptyspace0\:\:\:\:\:\:\:\:\end{matrix}[/tex]
[tex]\mathrm{The\:solution\:for\:Long\:Division\:of}\:\frac{3}{0.8}\:\mathrm{is}\:3.75[/tex]
~lenvy~
Evaluate: 13.5+14.5×3.1
Answer:
58.45
Step-by-step explanation:
Use BIDMAS
14.5 X 3.1 = 44.95
44.95 + 13.5 = 58.45
Answer:
58.45
Step-by-step explanation:
Simplify 5(4x³y²)³/(4x⁵y³)⁴
Answer:
5
4x^11*y^6
In words:
5 over 4x to the 11th power times y to the 6 power.
Step-by-step explanation:
simplify from original to this:
5x^9*y^6
4x^20*y^12
=
5y^6
4x^11*y^12
=
5
4x^11*y^6
What is the equation in point slope form of the line that passes through the point (2 , 4) and has a slope of 3?
Question 4 options:
y=3x-10
y-4=3(x-2)
y+4=3(x+2)
Solution:
Step-1: Use point slope form.
y - y₁ = m(x - x₁)=> y - 4 = 3(x - 2) [Option B]Step-2: Identify the equation of the line.
=> y - 4 = 3x - 6=> y = 3x - 6 + 4=> y = 3x - 2Option B is correct.
Equation in point slope form
[tex]\\ \rm\Rrightarrow y-4=3(x-2)[/tex]
[tex]\\ \rm\Rrightarrow y-4=3x-6[/tex]
[tex]\\ \rm\Rrightarrow 3x-y-6+4=0[/tex]
[tex]\\ \rm\Rrightarrow 3x-y-2=0[/tex]
$13,883 is invested, part at 8% and the rest at 6%. If the interest earned from the amount invested at 8% exceeds the interest earned from the amount invested at 6% by $625.26, how much is invested at each rate? (Round to two decimal places if necessary.)
Answer: 27090 is invested. part at 13% part at 10% the interest earned at 13% exceeds the interest earned at 10% by 440.16 how much is invested at each rate.
Can someone help me, please?
10 2/3 x 3 x 6 3/8
thx
Answer:
204
Step-by-step explanation:
Answer:
204
Step-by-step explanation:
Given the following question:
[tex]10\frac{2}{3} \times3\times6\frac{3}{8}[/tex]
In order to solve we will convert the mixed numbers into improper fractions and then solve by multiplying the numerators by the numerators and multiplying the denominators by the denominators.
[tex]10\frac{2}{3} \times3\times6\frac{3}{8}[/tex]
[tex]10\frac{2}{3} \times3[/tex]
[tex]10\frac{2}{3} =3\times10=30+2=32=\frac{32}{3}[/tex]
[tex]3=\frac{3}{1}[/tex]
[tex]\frac{32}{3} \times\frac{3}{1}[/tex]
[tex]32\times3=96[/tex]
[tex]3\times1=3[/tex]
[tex]=\frac{96}{3}[/tex]
[tex]\frac{96}{3}\times6\frac{3}{8}[/tex]
[tex]6\frac{3}{8} =8\times6=48+3=51=\frac{51}{8}[/tex]
[tex]\frac{96}{3}\times\frac{51}{8}[/tex]
[tex]96\times51=4896[/tex]
[tex]3\times8=24[/tex]
[tex]=\frac{4986}{24}[/tex]
Simplify by reducing:
[tex]=\frac{4986}{24}\div2=\frac{2493}{12}[/tex]
[tex]=\frac{2493}{12}[/tex]
[tex]\frac{2493}{12}[/tex]
[tex]=\frac{2493}{12}=2493\div12=204[/tex]
[tex]=204[/tex]
Your answer is indeed "204."
Hope this helps.
Simplify the polynomial. Fill in the blanks with the missing numbers.
2x−6+4x2+5x−2x2+10
The Given Polynomial has three different parameters scattered, first we have to rearrange and then solve for the missing numbers the answer is gotten as 2x^2+7x+4
Simplification of PolynomialGiven Data
2x−6+4x^2+5x−2x^2+10
We begin by collecting like terms
4x^2-2x^2+2x+5x-6+10
Carrying out addition and subtraction operation on like terms
2x^2+7x+4
The Simplified polynomial is
2x^2+7x+4
Learn more about polynomial here:
https://brainly.com/question/2833285
Please tell me. How you find 'two' from this equation?
Answer:
It's asking what 3^k+2 is in terms of m. That is where the 2 comes from.
Please let me know if this helped <3
Ari restaurant, all the freezers are set to a temperature that is below 3°F.
Let X be the temperature of the freezer. Which inequality represents temperatures below 3°F?
2 <-3
2-3
3 <3
2 > 3
Answer:
Answer is A
Step-by-step explanation:
X is below -3
Answer:
x>3=2>3
Step-by-step explanation: