Answer:
Step-by-step explanation:
A) for this we want to solve for x
we first have to ditribute 2 to 9x-6 and 6 to 3x-2
18x - 12 = 18x -12 + 2 --> 18x - 12 = 18x - 10
add ten to both sides 18x -12 (+10) = 18x
18x - 2 = 18x since you can solve it theirs no solution
B) you combind like terms --> 4x + 8 = 4x + 8
since their the same on both sides that means they have infinante solutions
You mix 2 pints of blue paint for every 5 pints of red paint to make purple paint. You use 18 pints of red paint. How much purple paint do you make?
PLEASE HELP ASAPPP:( i’ll mark brainlest
Answer:
480
Step-by-step explanation:
in this type of question you would multiply the amount of ounces in 1 pound to the amount of how many pounds there is.
ZA and ZB are supplementary angles. If mZA = (5x
ZB (2x + 10), then find the measure of ZB.
19) and m
Answer:
i need this question too
Step-by-step explanation:
PLZ HELP!!! ASAP!!!!
Since h(x) doesn't have any division by zero possibilities, and we aren't working with square roots, this means we don't have any domain restrictions to worry about.
We can plug in any real number we want for x to get some output h(x).
Therefore, all of the numbers listed are in the domain of h(x).
10 + 10 - 10 x 10 / 10
Answer:
10
Step-by-step explanation:
Thanks for the Points! Have a great day!
:)
Answer:
10 zzz
Step-by-step explanation:
15 points please help me (scatterplot)
i believe the correct ones are...
1
3
5
7
what is the sale price for a object that cost $75 but is on sale for 20% .
Answer:
$60
Step-by-step explanation:
$60
Step-by-step explanation:
20% = 0.2
75× 0.2 = 15
75-15=60
Which of the following is a term of -5.92?
1.45 x
2 1/4
-7.78 x with an exponent of 2
3/5
Answer:
2 1/4
Explanation
I took the test it was right.
what is the sum of the interior angles of a heptagon ?
Let n be rhe number of vertices in the polygon, then the sum of all interior angle is (n - 2) × 180°.
Number of sides in a heptagon = 7
So, n = 7
So,
the sum of the interior angles of a heptagon
= (7 - 2) × 180°
= 5 × 180°
= 900°
Answer:
900
Step-by-step explanation:
what is the value of y?
Answer:
try 70
Step-by-step explanation:
LOOK AT THE PICTURE
Which statement best explains if the graph correctly represents the proportional relationship y = 3.5x?
It does, the points shown on the line would be part of y = 3.5x.
It does not, proportions cannot be represented on a graph.
It does not, the points shown on the line would not be part of y = 3.5x.
It does, all proportions can be shown on the graph of this line.
Answer:
I don't think any of the answers here are right. They aren't a proportional relationship since they don't pass through the origin. So I would believe the answer would be C. Sorry if I'm wrong!!
Step-by-step explanation:
I learned about this stuff :D
Answer:
C, because you would need two numbers to find the slope of the graph.
Step-by-step explanation:
I had to take a minute to understand this question.
Express the following numbers as a product of their prime factors
24
Please show working
Answer:
2 x 2 x 2 x 3
Step-by-step explanation:
Find two numbers that multiply together to form 24:
2 x 12 = 24
Find two numbers that multiply together to form 12, a factor of 24. Replace 12 with these numbers:
2 x (2 x 6) = 2 x 12 = 24
Find two numbers that multiply together to form 6, a factor of 12. Replace 6 with these numbers:
2 x (2 x (2 x 3)) = 2 x (2x6) = 2 x 12 = 24
Two and three cannot be factored any further, therefore the prime factors of 24 are 2, 2, 2, and 3.
It is known that x1 and x2 are roots of the equation 3x^2+2x+k=0, where 2x1=−3x2. Find k.
Answer:
k = 8
Step-by-step explanation:
Since the roots of the equation 3x² + 2x + k are x₁ and x₂ and 2x₁ = 3x₂.
By the roots of an equation, ax² + bx + c , where its roots are x₁ and x₂. It follows that sum of roots are x₁ + x₂ = -b/a and product of roots are x₁x₂ = c/a.
Comparing both equations, a = 3 b = 2 and c = k.
So, x₁ + x₂ = -b/a = -2/3 and x₁x₂ = c/a = k/3
x₁ + x₂ = -2/3 and x₁x₂ = k/3
3x₁ + 3x₂ = -2 (1) and 3x₁x₂ = k (2)
Since 2x₁ = -3x₂, and -2x₁ = 3x₂substituting this into equations (1) and (2) above, we have
3x₁ + 3x₂ = -2 (1) and 3x₁x₂ = k (2)
3x₁ + (-2x₁) = -2 and x₁(3x₂) = k
3x₁ - 2x₁ = -2 and x₁(3x₂) = k
x₁ = -2 and x₁(-2x₁) = k
x₁ = -2 and -2x₁² = k
Substituting x₁ = -2 into -2x₁² = k, we have
-2x₁² = k
-2(-2)² = k
2(4) = k
8 = k
So, k = 8
The required value of k is -18
Given the quadratic equation [tex]3x^2+2x+k=0[/tex]
Let the roots of the equation be [tex]x_1 \ and \ x_2[/tex]
From the quadratic equatin:
a = 3, b = 3 and c = k
Sum of root = -b/a
x1 + x2 = -3/3
x1 + x2 = -1 ....................... 1
product of roots = c/a
x1x2 = k/3 ....................... 2
Recall that 2x1=−3x2
x1 = -3x2/2 ........... 3
Substitute equation 3 into 1:
x1 + x2 = -1 ....................... 1
-3x2/2 + x2 = -1
-3x2 + 2x2 = -2
-x2 = -2
x2 = 2
From equation 2:
x1x2 = k/3
2x1 = k/3
-3x2 = k/3
-3(2) = k/3
-6 = k/3
k = -18
Hence the required value of k is -18
Learn more on quadratic function here: https://brainly.com/question/11631534
Select the correct answer. How many solutions exist for 2|x-1) = 8?
A. 0
B. 1
C. 2
D. 3
Answer:
1
Step-by-step explanation:
because it is a linear equation and linear Equations only have 1 solution
If V= 1/3Bh, then what is the value of B?
Pls answer I need help with this question
Answer:
Well B is the base of the shape
If thats what you mean
Step-by-step explanation:
Please let me know wwhich is the answer! Will mark brainliest!
Answer:
A
Step-by-step explanation:
In the given figure, the value of x and y respectively is:
Answer:
x = 85
y = 65
Step-by-step explanation:
By interior angle sum property of a triangle.
y° + 25° + 90° = 180°
y° + 115° = 180°
y° = 180° - 115°
y° = 65°
y = 65
By remote interior angle theorem of a triangle:
x° = y° + 20°
x° = 65° + 20° (since y = 65)
x° = 85°
x = 85
A forest ranger spots a fire from a 21-foot tower. The angle of depression from the tower to the fire is 12 degrees . To the nearest foot, how far is the fire from the base of the tower?
Answer:
Step-by-step explanation:
98.8
Answer:
99
Step-by-step explanation:
The angle of depression looking from the tower is the same as the angle of elevation looking at the top of the tower from the spot of the fire. So, tan (12 degrees) = 21 / distance between the tower and fire. Thus, the distance = 21 / tan(12).
tan (12) = 0.2126
Distance = 21 / 0.2126 = 98.78
The question asks about the distance from the base to the fire (to the nearest foot.) Thus, it is 99 feet.
Agnes has 23 collectible stones, all of which
are labradorite crystals or galena crystals.
Labradorite crystals are worth $20 each, while
galena crystals are worth $13 each. Agnes
earns $439 by selling her entire collection. How
many stones of each type did she sell?
Answer:
The answer is she sold 20 labradorite crytals and 3 galena crystals.
Step-by-step explanation:
First you times 20 x 20 and get 400 and then times 13 x 3 and get 39 and 400 plus 39 equals $439.
Leah would like to earn at least $120 per month. She babysits for $5 per hour and works at an ice cream shop for $8 per hour, Leah cannot
work more than 20 hours per month
How did you determine the pair(s) (x,y) that Leah could work to meet the given conditions in item 157
Answer:
Sorry if I am wrong
Step-by-step explanation:
If you do 5x10 then you would get 50 right then if you also do 8x10 then you would get 80 add those together you get 130. that means if Leah worked 10 hours at Ice cream and 10 hours at babysitting she would not only meet her goal she would have 10 extra dollars.
A movie theater sends out a coupon for 15% off the price of a ticket. Write an equation for the situation, where y is the price of the ticket with the coupon, and x is the original price of the ticket. Use pencil and paper. The equation is y what (Use integers or decimals for any numbers in the expression).
Answer:
y = 0.85x
Step-by-step explanation:
Given that:
Coupon (c) = 15% off
x = original price of ticket
y = price of ticket with coupon
Price of ticket with coupon = (100 - c)% * original price)
y = (100 - 15)% * x
y = 85% * x
y = 0.85x
HELP ASAP!!! PLEASE!!! MARKING BRAINLIEST! MATH!!!
Answer:
9x50=450
Step-by-step explanation:
hope this helps
what are the slope and the y-intercept of the linear function that is represented by the table?
the slope is -2/5, and the y-intercept is -1/3.
the slope is -1/3, and the y-intercept is -2/5.
the slope is 1/3, and the y-intercept is -2/5.
the slope is 2/5, and the y-intercept is -1/3.
Answer:
la respuesta correcta es la letra B es decir la pendiente es -1/3 y la intersección con el eje y es -2/5 segun mis calculos
Step-by-step explanation:
A man's taxable income is $20 000 . he pays tax at the rate of 28% what is the amount of income tax he pays
Answer:
5600
Step-by-step explanation:
20,000 x 0.28 = 5600
Given the number 47,135,280, what is the place value of the number 3
Answer:
ten thousand
Step-by-step explanation:
Answer:
3 would be ten thousand
Step-by-step explanation:
in words it would be thirty five thousand and two hundred eighty.
the number 3 would be in the tenth thousand because its the 2nd one in the thousands. It’s the 10th thousands thats why.
Which scatterplot suggests a linear relationship between x and y?
If it takes 3 1/3 minutes to fill 3/8 of a water tank, how long will it take to fill it completely?
Answer:
[tex]8 \frac{8}{9}[/tex] minutes
Step-by-step explanation:
plz mark brainlyest
PLEASE HELP FAST
Evaluate the following expression using the remainder theorem.
Find f(3) given f(x) = 3x^6 + 14x – 28x^4 – 126x^3 – 35x^2 + 112x + 75
Answer:
-3165
Step-by-step explanation:
put 3 in for x than you just multiply from there than once you multiplied add and subtract than you have the answer
Jamie evaluated this expression. StartFraction left-bracket (2 cubed) (2) right-bracket Superscript 4 Baseline Over 2 Superscript 10 Baseline Endfraction step 1: StartFraction left-bracket (2 Superscript 4 Baseline) Superscript 4 Baseline Over 2 Superscript 10 EndFraction step 2: StartFraction 2 Superscript 16 Over 2 Superscript 10 EndFraction step 3: 26 step 4: 64 Analyze the steps Jamie applied to evaluate the expression. Which rule of exponents was applied in each step? Step 1: Step 2: Step 3:
Answer:
1/8Step-by-step explanation:
Given the expression
[tex]\frac{(2^3)(2)^4}{2^{10}} \\[/tex]
Using the following laws of indices;
[tex]\frac{a^m}{a^n} = a^{m-n}\\a^m \times a^n = a^{m+n}[/tex]
The expression becomes;
Step 1: Multiplication rule
[tex]=\frac{(2^3)(2)^4}{2^{10}} \\= \frac{2^{3+4}}{2^{10}}\\= \frac{2^7}{2^{10}}[/tex]
Using the division rule of exponent (Quotient of powers);
[tex]= \frac{2^7}{2^{10}} \\= 2^{7-10}\\= 2^{-3}\\also \ a^{-m} = \frac{1}{a^m}\\ 2^{-3}= \frac{1}{2^3}\\\frac{1}{2^3} = \frac{1}{8}[/tex]
Hence the result of the expression is 1/8
Answer:
(A) PRODUCT OF POWERS
(B) POWER OF A POWER
(C) QUOTIENT OF POWERS
Step-by-step explanation:
it is correct
The 2 triangles are congruent
JKL=PQR
Answer:
w = 3
The rest doesn't have enough information to complete, (Sorry for previous answer)
