Answer:
mine too
Step-by-step explanation:
What should be done so that the expression will have a value of 28?
6 + 2 + 32 × 2
Answer:
6+2+(32×2)
6+2+(64)
8+64
72
difference between 72 and 28
72-28
=44
add 44 to make the value 28
Find out the values of x and y from the following ordered pairs.
(x + y, 2) = (13, 2x – y)
Answer:
(x, y) = (5,8)
Step-by-step explanation:
Comparing the ordered pairs we get, x+y=13 and 2=2x-y. Solving it we will get, x=5 and y=8
which linear function shows a direct variation
Answer:
a pod t.v. Ka ssh Mic yummy
Question 4(Multiple Choice Worth 4 points)
.
(08.03)Solve the system of equations and choose the correct answer from the list of options.
X + y = -3
y = 2x + 2
a- five over 3, four over 3
b-negative five over 3, negative four over 3
c- negative 3 over 5 negative 3 over 4
D- 3 over 4, 3 over 5
Answer:
Hello,
Answer B (-5/3,-4/3)
Step-by-step explanation:
I am going to use the substitution 's method.
[tex]\left\{\begin{array}{ccc}x+y&=&-3\\y&=&2x+2\\\end {array} \right.\\\\\\\left\{\begin{array}{ccc}y&=&2x+2\\x+2x+2&=&-3\\\end {array} \right.\\\\\\\left\{\begin{array}{ccc}y&=&2x+2\\3x&=&-5\\\end {array} \right.\\\\\\\left\{\begin{array}{ccc}x&=&-\dfrac{5}{3} \\\\y&=&2*(-\dfrac{5}{3})+2\\\end {array} \right.\\\\\\\boxed{\left\{\begin{array}{ccc}x&=&-\dfrac{5}{3} \\\\y&=&-\dfrac{4}{3}\\\end {array} \right.\\}[/tex]
A telephone plan charges a regular monthly amount plus charges for the number of minutes of use (x) as shown in the equation y = 0.28x + 65. What are the slope and y-intercept? HELP
Answer:
Slope: 0.28
y-intercept: (0,65)
Answer:
slope: .28 y-int: 65
because y=mx+b m is slope and b is the y intercept
11.(02.03)
The table shows the solution to the equation |2x - 31 - 1 = 2:
Step 1 |2x - 3) = 2 + 1
Step 2 12x - 3| = 3
Step 3 2x - 3 = 3 or 2x + 3 = 3
Step 4 2x = 6 or 2x = 0
Step 5 x = 3 or x = 0
Which is the first incorrect step? (1 point)
O Step 1
O Step 3
Step 5
O Solution is correct
Answer:
step number 1 is incorrect.
Step-by-step explanation:
Here is the solution of this equation [2x-31-1=2].
2x-31-1=2
or 2x-31=2+1
or 2x=2+1+31
or 2x= 34
or x=34/2
or x= 17
the answer of this equation is X=17.
Answer:
Step 1
Step-by-step explanation:
what is the remainder when 3 is synthetically divided into the polynomial -2x^2 + 7x -9
Answer:
-6
Step-by-step explanation:
-6 is the answer .
Hope it helps you
Answer:
-6
Step-by-step explanation:
E how many different ways is it possible to answer an 8-question true/false quiz?
Answer:
16
Step-by-step explanation:
8 questions
2 answers per question
8*2= 16
Bud bought 2 kissing fish for $4.75 each. He bought a small aquarium for$19.95. How much did Bud spend? What is the answer
Answer:
29.45
Step-by-step explanation:
Cost of the fish
2 * 4.75 = 9.50
Cost of the tank
19.95
Add them together
9.50+19.95
29.45
Answer:
29.45$
Step-by-step explanation:
total=2×4.75$+19.96$
=29.45$
Ram thinks of a number if he adds 3 to 5 times the number he gets 38. what is the number?
Answer:
7
Step-by-step explanation:
Set up an equation to model the situation. Let (x) represent the unknown number.
(5x) + 3 = 38
Use inverse operations to solve for the unknown,
(5x) + 3 = 38
5x = 35
x = 7
The tempteture falls from 11 degrees to -2 degrees how much degres fell
What are the coordinates of the midpoint between the points (-4, -9) and (-8, -5)? Select the best answer from the choices provided. A. (-4, -4) B. (-6, -7) C. (-6, -4) D. (-4, -7)
Find the volume of this sphere
Please help..
Answer:
Answer can be found with the help of a calculator.
Step-by-step explanation:
Volume of sphere = 4/3 × pi × 3ft³
= Answer
P/4+=16
Pls show work!!
Answer:
P = 64
Step-by-step explanation:
brainliest question
how much ounces are in 22 grams 0.035x
Answer:
0.77 ounces
My apologies if my answer is wrong :)
Answer:
0.77
Step-by-step explanation:
UNESS has a contribution margin ratio of 0.25. UNESS operations income was sh.100 000blast year when the sales totaled sh. 1 000 000.What is UNESS fixed expense? A sh.250 000 B sh.350 000 C sh.150 000 D sh.225000
Answer:
D sh.225000
Step-by-step explanation:
Calculation to determine UNESS fixed expense?
Using this formula
Fixed expense=(Total sales - Operating income)*Contribution margin ratio
Let plug in the formula
Fixed expense=($1,000,000-$100,000)*0.25
Fixed expense=$900,000*0.25
Fixed expense=$225,000
Therefore UNESS fixed expense is $225,000
Using the theorems and given information, which of the following proves a∥b?
Given: m∠3=(12x+24)∘, m∠5=(10x+40)∘, and x=8
Answer:
m∠3=12(8)+24=120
m∠5=10(8)+40=120
m∠3=m∠5,∠3=∠5
OAmalOHopeO
What is the y-coordinate of the red point ?
A. -3
B. 2
C. -2
D. 3
Answer:
A is the y-coordinate of the red point.
Business math problem, whats the formula for this, how do I do this?
========================================================
Explanation:
x = sticker price, which is some number larger than 9 (otherwise the store loses money)
x-9 = profit made per speaker
To get the gross margin percentage, we divide the profit over the sales (aka revenue). So we'll divide (x-9) over x
The expression (x-9)/x represents the gross margin in decimal form. Set this equal to 0.80 and solve for x
-----------------
(x-9)/x = 0.80
x-9 = 0.80x
x-0.80x = 9
0.20x = 9
x = 9/0.20
x = 45
The sticker price is $45
-------------------
If the sticker price is $45 per speaker, then the store owner gets 45-9 = 36 dollars in profit per speaker sold. The gross margin would be (profit)/(sales) = 36/45 = 0.80 = 80%
In other words, 80% of the revenue is profit (the remaining 20% is costs or expenses).
SOMEONE HELP ME PLEASE
Answer:
y = 90
Step-by-step explanation:
A direct variation is
y = kx where k is a constant
30 = k(-3) from the first set of points
30/-3 = -3k/-3
-10 = k
The equation is y = -10x
Let x = -0
y = -10 * -9
y = 90
2 2.4.3 Quiz: Adding and Subtracting Functions
Question 4 of 10
If f(x) = 3x - 2 and g(x) = 2x + 1, find (f + g)(x).
A. 5x - 1
B. X-3
C. X-1
D. 5x-3
Answer:
Ii's letter A
Step-by-step explanation:
If functions f(x) = 3x - 2 and g(x) = 2x + 1 then (f+g)(x) value is 5x-1, Option A is correct.
What is a function?A relation is a function if it has only One y-value for each x-value.
The given functions are f(x) = 3x - 2 and g(x) = 2x + 1
We have to find the function (f+g)(x)
By property of the function (f+g)(x) = f(x) + g(x)
Now plug in the values of function f(x) and g(x)
(f+g)(x)= 3x-2+2x+1
Combine the like terms
(f+g)(x)= 5x-2+1
= 5x-1
Hence, if functions f(x) = 3x - 2 and g(x) = 2x + 1 then (f+g)(x) value is 5x-1, Option A is correct.
To learn more on Functions click:
https://brainly.com/question/30721594
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HELP QUICK PLEASE!
Which postulate, if any, could be used to prove the triangles are congruent?
Hypotenuse-Leg (HL)
Side-Angle-Side (SAS)
O Side-Side-Side (SSS)
The triangles cannot be proved congruent.
Answer:
Side-Side-Side (SSS)
Step-by-step explanation:
Side-Side-Side is a rule used to prove whether a given set of triangles are congruent. The SSS rule states that: If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.
What is the range of function f in the function f(x)= -(2)^x + 4
Answer:
A. {y | -∞ < y < 4}
General Formulas and Concepts:
Algebra I
Range is the set of y-values that are outputted by function f(x)Step-by-step explanation:
According to the graph, we can see that we have a horizontal asymptote at y = 4. Our y-values stretch from negative infinity to the horizontal asymptote.
∴ our answer would be A.
Question 4 of 5
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used
Match each explicit formula to its corresponding recursive formula.
(8) = 5(5)(1-1)
(n) = 3 +5(n-1)
(3) = 5+3(1-1)
7(n) = 3(5)(n-1)
$(n) = 5 +5(n-1)
f(1) = 5
(*) = 3;(n - 1), for 3
(1) = 5
(n) = f(n-1) +5, for n?
f(1) = 5
f(n) = f(n-1) + 3, for n?
Given:
The recursive formulae.
To find:
The correct explicit formulae for the given recursive formulae.
Solution:
If the recursive formula of a GP is [tex]f(n)=rf(n-1), f(1)=a, n\geq 2[/tex], then the explicit formula of that GP is:
[tex]f(n)=ar^{n-1}[/tex]
Where, a is the first term and r is the common ratio.
The first recursive formula is:
[tex]f(1)=5[/tex]
[tex]f(n)=3f(n-1)[/tex] for [tex]n\geq 2[/tex].
It is the recursive formula of a GP with a=5 and r=3. So, the required explicit formula is:
[tex]f(n)=5(3)^{n-1}[/tex]
Therefore, the required explicit formula for the first recursive formula is [tex]f(n)=5(3)^{n-1}[/tex].
If the recursive formula of an AP is [tex]f(n)=f(n-1)+d, f(1)=a, n\geq 2[/tex], then the explicit formula of that AP is:
[tex]f(n)=a+(n-1)d[/tex]
Where, a is the first term and d is the common difference.
The second recursive formula is:
[tex]f(1)=5[/tex]
[tex]f(n)=f(n-1)+5[/tex] for [tex]n\geq 2[/tex].
It is the recursive formula of an AP with a=5 and d=5. So, the required explicit formula is:
[tex]f(n)=5+(n-1)5[/tex]
[tex]f(n)=5+5(n-1)[/tex]
Therefore, the required explicit formula for the second recursive formula is [tex]f(n)=5+5(n-1)[/tex].
The third recursive formula is:
[tex]f(1)=5[/tex]
[tex]f(n)=f(n-1)+3[/tex] for [tex]n\geq 2[/tex].
It is the recursive formula of an AP with a=5 and d=3. So, the required explicit formula is:
[tex]f(n)=5+(n-1)3[/tex]
[tex]f(n)=5+3(n-1)[/tex]
Therefore, the required explicit formula for the third recursive formula is [tex]f(n)=5+3(n-1)[/tex].
Can someone please help me with this I’m struggling
Answer:
Equation: [tex]70=(x+3)x[/tex]
x = -10 or x = 7
x = 7 (width can't be negative)
x + 3 = 10
Step-by-step explanation:
Represent the width of the rectangle by x. "The length of a rectangle EXCEEDS the width by 3" means the length is 3 LONGER than the width, so the length is represented by the expression x + 3.
Area = (length)(width)
70 = (x + 3)x
Multiply out the right side.
[tex]70=x^2+3x\\x^2+3x-70=0[/tex]
Factor the left side.
[tex](x+10)(x-7)=0[/tex]
Each binomial could equal 0, so
[tex]x+10=0 \text{ or }x-7=0\\x=-10\text{ or }x=7[/tex]
The negative solution does not make sense as the width of a rectangle.
x = 7, making the length, x + 3 = 10
Answer:
Pls mark this as brainiest
Step-by-step explanation:
Area of the rectangle = length x breadth
consider 'x' to be width
therefore length = x+3
area = (x+3)*x
Area = 70 square
x = 7
x+3 = 7+3
= 10
verification
7 x 10
= 70
Let g(x)= -2(3x+4)(x−1)(x−3)^2 be a polynomial function. Name all horizontal and vertical intercepts of the graph. State the end behavior of g.
Answer:
The vertical intercepts is
(4/3,0) (3,0) (1,0)
The horinzontial intercepts is
(0,72)
The end behavior is
as x approaches positive infinity, f(x) approaches negative infinity. As x approaches negative infinity, f(x) approaches negative infinity.
Step-by-step explanation:
The vertical or y intercepts will be zeroes of the following factors.
[tex]3x + 4 = 0[/tex]
[tex]x - 1 = 0[/tex]
[tex](x - 3) {}^{2} = 0[/tex]
We solve for x each time.
[tex]x = - \frac{4}{3} [/tex]
[tex] x = 1[/tex]
[tex]x = 3[/tex]
Part B). We need to find the intercepts by setting the equation equal to zero.
The constant expanded will equal 72.
If x=0,
[tex] {0}^{y} = 0[/tex]
where y is any real number.
So this means all the exponets will equal 0. The constant will just add to the term. so our horinzontal intercept is
[tex]0 + 72 = 72[/tex]
Part C) End Behavior
The leading degree is even. Even Degree Polynomials like Quadratics tend to go approach positive infinity vertically as x approaches positive infinity, and as x approaches negative infinity, it approaches positive infinity vertically.
Our leading coefficient is negative so this means our quadratic will get reflected across the x axis.
Now this means, as x approaches positive infinity, f(x) approaches negative infinity. As x approaches negative infinity, f(x) approaches negative infinity.
Please i need help lllll
Answer:
C
Step-by-step explanation:
A function x values must correspond to one y values.
One y values can correspond to two different x values.
C shows this isn't a function
a company's stock was selling at 28 a share. a month later, it was selling at 21 a share. what is the percent loss?
Answer:
25% loss
Step-by-step explanation:
Take the original amount and subtract the new amount
28 -21 = 7
Divide by the original amount
7/28 = .25
Change to percent form
25%
25% loss
Can someone help me with this math homework please!
Answer:
Graph number 3 is correct :)
Answer:
It's the 3rd pic
Step-by-step explanation:
It's written in y=mx+b form
the m is slope so 2/3 is the slope. You go up 2 and right 3
b is the y-intercept
hope this helps
At the bulk food store, Jerry bought 200 g of mixed nuts that cost $2.50. What is the cost of 1 g of nuts? show ur work
Step-by-step explanation:
200g=$2.50
1g=?
2.50*1=?*200
2.50/200=?
$0.0125