In slope-intercept form, what is the equation of a line perpendicular to y = 2x+ 7 that passes through the point (5,8)?
1
y=0.5x - 10.5
O 2
y = -0.5x + 10.5
3
y = 2x + 10.5
4
y = -2x - 10.5
Answer:
2
y = -0.5x + 10.5
Step-by-step explanation:
put a negative sign and 1 on top of the number next to the x to get the line thats perpendicular
2
y = -0.5x + 10.5
da
A
Solve the equation 2x^2+3=0
Answer:
x = ±i(√6 / 2)
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Solving quadraticsAlgebra II
Imaginary root i
√-1 = iStep-by-step explanation:
Step 1: Define
Identify
2x² + 3 = 0
Step 2: Solve for x
[Subtraction Property of Equality] Subtract 3 on both sides: 2x² = -3[Division Property of Equality] Divide 2 on both sides: x² = -3/2[Equality Property] Square root both sides: x = ±√(-3/2)Simplify: x = ±i(√6 / 2)According to the rational root theorem, which is a factor of the polynomial f(x)=3x^3-5x^2-12x+20?
Answer:
(x-2), (x+2), (3x-5)
Step-by-step explanation:
Factors of 3: ±1, ±3
Factors of 20: ±1, ±2, ±4, ±5, ±10, ±20
Possible factors of the polynomial: ±1, ±2, ±3, ±4, ±5, ±10, ±20, .... (there's a lot more but you probably do not need to list them all)
Pick a number to divide the polynomial by (I picked 2)
(3x³-5x²-12x+20)÷(x-2) = 3x²+x-10
So (x-2) is a factor of f(x) = 3x³-5x²-12x+20
Factor 3x²+x-10 = (3x-5)(x-2) these are the other factors of f(x) = 3x³-5x²-12x+20
Which expression is a perfect cube? -8x^21y^8 -64x^64y^64 -125x^9y^20 -216x^9y^18 I need the answer quick please.
Answer:
Step-by-step explanation:
The expression is too close together. Can you space them out?
Answer:
d) -216x^9y^18
Step-by-step explanation:
At the end of a year, the gross debt of a country stood at about $15 trillion. Express this amount in dollars per person, assuming that the population of the country is about 309 million.
The gross debt is about $nothing per person.
Answer:
The country's debt is $ 48,543.68 per person.
Step-by-step explanation:
Given that at the end of a year, the gross debt of a country stood at about $ 15 trillion, to determine this amount in dollars per person, assuming that the population of the country is about 309 million, the following calculation must be done:
15 trillion = 15,000,000,000,000
15,000,000,000,000 / 309,000,000 = X
15,000,000 / 309 = X
48,543.68 = X
Therefore, the country's debt is $ 48,543.68 per person.
what is 6 cm and 7 mm converted to
Answer:
converted to what?
Step-by-step explanation:
Which expressions are equivalent to -6n+(-12)+4n
Choose all answers that apply:
A. 4(n-3) -6n
B. 2(2n-6)
C. None of the above
Answer:
i THINK its A. 4(n-3) -6n
Step-by-step explanation:
Have a wonderful day!!
solve the following equations;-
x - 9 /√x + 3 =1
Answer:
13 , 6.
Step-by-step explanation:
A equation is given to us and we need to find out the value of x . The given equation to us is ,
[tex]\sf\implies \dfrac{ x -9}{\sqrt{x+3}}= 1 [/tex]
Cross multiply ,
[tex]\sf\implies x - 9 =\sqrt{ x +3} [/tex]
Squaring both sides ,
[tex]\sf\implies (x - 9)^2 = x + 3 [/tex]
Simplify the whole square ,
[tex]\sf\implies x^2+9^2-2.9.x = x +3 \\ [/tex]
[tex]\sf\implies x^2+81 - 18x = x -3[/tex]
Add 3 and subtract x on both sides ,
[tex]\sf\implies x^2 -18x-x +81-3=0[/tex]
Simplify ,
[tex]\sf\implies x^2 -19x +78=0 [/tex]
Split the middle term of the quadratic equation,
[tex]\sf\implies x^2-13x-6x+78=0 [/tex]
Take out common ,
[tex]\sf\implies x( x -13)-6(x-13)=0[/tex]
Take out ( x -13 ) as common ,
[tex]\sf\implies ( x -13)(x-6)=0 [/tex]
Equate both factors to 0 ,
[tex]\sf\implies \boxed{\pink{\sf x = 13,6}}[/tex]
Hence the value of x is 13 or 6 .
Find the value of t for at distribution with 40 degrees of freedom such that the area between-1 and equals 99 %. Round your answer to three decimal places, if nescarry
Answer:
The value is [tex]t = 2.705[/tex].
Step-by-step explanation:
In this question, we have to find the critical value for the t-distribution, with 40 degrees of freedom, and a 99% confidence level.
99% confidence level:
We have to find a value of T, which is found looking at the t table, with 40 degrees of freedom(y-axis) and a two-tailed value of [tex]1 - \frac{1 - 0.99}{2} = 0.995[/tex]. So we have T = 2.705.
The value is [tex]t = 2.705[/tex].
Pleaseee hellllpppp!!!!
Answer:
I hope option D is write
I hope you help
Answer:
B. 32°
Step-by-step explanation:
The reference angle for 212°
=212°-180°
=32°
Hope it is helpful to you
a carpet is laid on a rectangular floor which measures 4meters by 5meters. if the carpet covers 60% of the floor find the area of the carpet
Answer:
12 m²
Step-by-step explanation:
Area of the floor:
area = length * width
area = 4 m * 5 m
area = 20 m²
area of carpet = 60% of area of the floor
area of carpet = 0.6 * 20 m²
area of carpet = 12 m²
What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4?
1
–1
i
–i
Answer:
B. -1 should be the answer
Step-by-step explanation:
please help me please help me
Answer:
largest 4 digit number × largest 3 digit number
=9999 × 999
(10000-1)×(1000-1) = (a-b)(c-b)= ac-ab-bc+b^2
10000000-10000-1000+1 = 9989001
Every decimeter on a map represents 11.5 kilometers of actual distance. On this map,
specific points M and N are exactly 235 decimeters apart. Therefore, points M and N are
actually how many kilometers apart? Write your answer as a mixed fraction.
Given:
Scale factor of map is:
1 decimeter = 11.5 kilometers
The distance between M and N on the map is 235 decimeters.
To find:
The Actual distance between M and N.
Solution:
Scale factor of map is:
1 decimeter = 11.5 kilometers
Using this scale factor, we get
235 decimeter = 235 × 11.5 kilometers
235 decimeter = 2702.5 kilometers
235 decimeter = [tex]2702\dfrac{1}{2}[/tex] kilometers
Therefore, the points M and N are [tex]2702\dfrac{1}{2}[/tex] kilometers apart.
There is a 60% probability that a home in the United States has a large-screen TV. In a sample of six homes, what is the probability that there will be a large screen TV in:
Answer: You left out half the question so
Step-by-step explanation:
if you're looking for chance of x houses having a tv, then .6^x is your formula,
if you're looking for chance of x houses not having a tv, then .4^x will find it
Both formulas only apply if you're looking at specific homes, since your question is incomplete I can only guess at what your answer should be.
Help me solve this please:) I’ll give you brainliest
Step-by-step explanation:
Given:
[tex]\vec{a} = 5\hat{\textbf{i}} + 4\hat{\textbf{j}}[/tex]
[tex]\vec{b} = 5\hat{\textbf{i}} - 5\hat{\textbf{j}}[/tex]
Then
[tex]2\vec{a} = 2(5\hat{\textbf{i}} + 4\hat{\textbf{j}})[/tex]
[tex]\:\:\:\:\:\:= 10\hat{\textbf{i}} + 8\hat{\textbf{j}}[/tex]
[tex]3\vec{b} = 3(5\hat{\textbf{i}} - 5\hat{\textbf{j}})[/tex]
[tex]\:\:\:\:\:\:= 15\hat{\textbf{i}} - 15\hat{\textbf{j}}[/tex]
Therefore,
[tex]2\vec{a} - 3\vec{b} = (10 - 15)\hat{\textbf{i}} + (8 - (-15))\hat{\textbf{j}}[/tex]
[tex]= -5\hat{\textbf{i}} + 23\hat{\textbf{j}}[/tex]
To find the magnitude,
[tex]|2\vec{a} - 3\vec{b}| = \sqrt{(-5)^2 + (23)^2}= 23.54[/tex]
I need help ASAP with question anyone?
Answer:
Option D
Answered by GAUTHMATH
Answer:
D.
Step-by-step explanation:
The asymptotes are at x = 1 and x = -4.
The denominator of option D is not defined for x = 1 and x = -4 since those two values cause a zero in the denominator.
Answer: D.
HELPPP PLEASE. So I have figured out the first one however I cannot seem to figure out the rest as my answers are wrong. How do solve this problem? Please help!
Answer:
it seems as it is adding .15 every time so the next 3 would be .05 .20 and .65
A car has 2gallons of gas. The car gets 30miles/gallon. Enter the conversion factor
The car will run 60 miles on 2 gallons of gas.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that A car has 2 gallons of gas. The car gets 30 miles/gallon.
The run of the car will be calculated as,
1 gallon = 30 miles
2 gallons = 30 x 2 miles
2 gallons = 60 miles
Therefore, the car will run 60 miles on 2 gallons of gas.
To know more about an expression follow
https://brainly.com/question/13363911
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the domain of f/g consists of numbers x for which g(x)........0 that are in the domain of both.....and......
Answer:
the domain of f/g consists of numbers x for which g(x) IS NOT EQUAL 0 that are in the domain of both f(x) and g(x)
Step-by-step explanation:
The denominator of a rational function can't be zero (see the first row in the attached table)
The required fill in the blanks is ≠ , f(x) and g(x).
It is required to fill in the blanks.
What is function?A function is defined as a relation between a set of inputs having one output each. function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.
Given:
The domain of f/g consists of numbers x for which g(x) IS NOT EQUAL 0 that are in the domain of both f(x) and g(x).
The domain of (f/g) (x) consists of all x-values that are in the domain of both f and g, where g(x) ≠ 0. Both f and g have domain all real numbers.
Therefore, the required fill in the blanks is ≠ , f(x) and g(x).
Learn more about function here:
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If 3 litres of paint is mixed five parts water to one part concentrate, how much concentrate was used?
Answer:
1/2 Liter was concentrate. 2 1/2 L was water.
Step-by-step explanation:
Let the amount of concentrate = x
5x + x = 3 Combine the left
6x = 3 Divide by 6
x = 3/6
x = 1/2
If the odds a horse will win the Kentucky Derby is 3:2, what is the probability the
horse will win?
Answer:
=3/(3+2) × 100
=60
Step-by-step explanation:
=3/(3+2) × 100
=60
A quadrilateral is dilated by a scale factor of 2. It's original side measures are 7, 14, 21, and 28.
After dilation, the new side measures are ?
In a gambling game a person draws a single card from an ordinary 52-card playing deck. A person is paid $17 for drawing a jack or a queen and $5 for drawing a king or an ace. A person who draws any other card pays $2. If a person plays this game, what is the expected gain
Answer:
[tex]E.G=\$2[/tex]
Step-by-step explanation:
Sample size 52 card
Pay for J or Q [tex]=\$17[/tex]
Pay for King or Ace [tex]=\$5[/tex]
Pay for others [tex]=-\$2[/tex]
Therefore
Probability of drawing J or Q
[tex]P(J&Q)=\frac{8}{52}[/tex]
Probability or drawing King or Ace
[tex]P(K or A)=\frac{8}{52}[/tex]
Probability or drawing Other cards
[tex]P(O)=\frac{36}{52}[/tex]
Therefore
Expected Gain is mathematically given as
[tex]E.G=\sum_xP(x)[/tex]
[tex]E.G=17*\frac{8}{52}+5*\frac{8}{52}+(-2)*\frac{36}{52}[/tex]
[tex]E.G=\$2[/tex]
Find a33 of the arithmetic sequence given a1=17 and d=6.
Answer:
209
Step-by-step explanation:
Given the following:
[tex]a_{1} = 17\\d=6[/tex]
The nth term of an arithmetic sequence is expressed as:
[tex]a +(n-1)d[/tex]
a is the first term = 17
d is the common difference =6
Get the 33rd term:
[tex]n=33\\a_{33}=17+(33-1)*6\\a_{33} =17+32(6)\\a_{33}=17+192\\a_{33}=209[/tex]
Hence the 33rd term is 209
For the function f(x) = 2x +3, evaluate f(3).
Answer:
9
Step-by-step explanation:
f(3) = 2(3) + 3
= 9
Answer:
[tex]{ \tt{f(x) = 2x + 3}}[/tex]
f(3) means x = 3, substitute for x as 3 :
[tex]{ \tt{f(3) = 2(3) + 3}} \\ = 6 + 3 \\ = 9[/tex]
What is the maximum amount of a loan you can get if you pay $700 each month at a yearly rate of 0.89% for 10 years?
Answer:
$785.17
Step-by-step explanation:
Given data
PV is the loan amount
PMT is the monthly payment
i is the interest rate per month in decimal form (interest rate percentage divided by 12)
n is the number of months (term of the loan in months)
PMT =$700
n = 10 years
i = 0.89%
The formula for the loan amount is
URGENT!!!!!!! HELP PLEASE!!!!!!
Answer:
[tex]x^\frac{2}{3}[/tex]
Step-by-step explanation:
Using the power of power rule (multiply the exponents)
[tex]x^\frac{4}{3}[/tex] × [tex]^\frac{1}{3}[/tex] [tex]x^\frac{2}{3}[/tex] × [tex]^\frac{1}{3}[/tex]
[tex]x^\frac{4}{9}[/tex] [tex]x^\frac{2}{9}[/tex]
When exponents are multiplied, add the answers:
x ^ ( 4/9 + 2/9 )
x ^ ( 6/9 )
x ^ ( 2/3 )
(6 + 8) (3 - 2) = help plz
Answer:
Step-by-step explanation:
(6+8i)(3-2i)
use FOIL
18 - 12i + 24i - (16[tex]i^{2}[/tex])
18 + 12i - (-16)
18 + 12i + 16
34 + 12i
Which of the following statements is likely to be true?
a) The median personal income of California taxpayers would probably be near the mean.
b) For personal incomes in California, outliers in either tail would be equally likely.
c) The interquartile range offers a measure of income inequality among California residents.
d) For income, the sum of squared deviations about the mean is negative about half the time.
Answer:
c. The interquartile range offers a measure of income inequality among California residents.
Step-by-step explanation:
The range is the midspread which measures statistical dispersion. This is also known as H-spread which is equal to the difference between 75th percentile and 25th percentile. In the given scenario the interquartile range offers measure of income inequality among California residents.