C. 6y and 2x
_____________________________
3x - 6y + 2x + 5y =
3x + 2x + 5y - 6y =
( 3 + 2 )x + ( 5 - 6 )y =
5x - y
You are looking for a summer job at a sneaker shop. The most popular sneakers sold are shown below:
find the vertex of y=-x²-4x+12
Becky can wash 15 dishes in 5 minutes. How many dishes will she be able to wash in 8 minutes?
Answer:
24 is correct answer
Step-by-step explanation:
its a 5:15 ratio, you are finding 8:x
8/5=1.6-> 1.6 x a5 = 24
Answer:
24 plates
Step-by-step explanation:
If she can wash 15 dishes in 5 minutes you just need to figure out how many dished she can washe in 1 minute. so you are gonna divide 15 by 5 and get 3 because 3 times 5 equals 15. so then that means she can wash 3 plates in 1 minute. so if she washed 15 in 5 in 6 minutes she can wash 18 and in 7 minutes she can wash 21 and in 8 minutes she can wash 24. Your just adding 3 to the 15 for every minute.
Jenny bought 3 CDs that were each the same price. Including sales tax, she paid a total of $45.30 Of that total, $1.50 was tax. What was the price of each CD before tax?
I need the right answer give brainliest
Answer:
each cd is 14.60
Step-by-step explanation:
45.30-1.50= 43.80
43.80÷3=14.60
Answer:14.30
Step-by-step explanation:
$14.30 per CD and .50 tax per Cd
If x = 2, what is the value of 5x + 3?
A. 7
B. 10
C. 13
D. 55
Answer:
C)
Step-by-step explanation:
5 times 2 equals 10
add 3
the total comes up to 13.
If a point C is inside
what is the reciprocal of 24
Answer:
-1/24
Step-by-step explanation:
To find the reciprocal, you swap the numerator and the denominator. In this case, the numerator is 24 and the denominator is 1. Therefore, it would be 1/24. Now all we have to do is make this number negative. This would make it -1/24. Therefore, the reciprocal of 24 is -1/24.
If this helps please mark as brainliest
Given that sinx = 3/5 and cosy = 7/25, with x and y both being Quadrant I angles, find tan(x/2).
Answer:
0,33
Step-by-step explanation:
x = 36,87
y = 73,74
tan(x/2)
= tan(36,87/2)
= tan (18,44)
= 0,33
Answer:
multiply both side by 2 which gives u tan x 2 is equal to X
multiply it and it will give u the answer But make sure your calculator is in degree mode
Please help me asap please please
x = 50
Step-by-step explanation:
the two angles at the bottom would he the same. Since the interior angles of a triangle must add up to 180 the you just subtract that from 180. 180-(65+65)=50
Answer:
x = 50
Step-by-step explanation:
Since the 2 sides are equal to each other, so are the angles. This is an isoceles triangle, by the way. All triangle interior angles add up to 180.
So, the equation is:
x + 65 + 65 = 180
x + 130 = 180
x = 180 - 130
x = 50
A dogsled race had 6 teams with 7 dogs each and 8 teams with 9
dogs each.
How many dogs raced?
PLSSS HELP ME WITH THESE :)))
Answer:
7) [tex]x \to x - 3[/tex].
8) [tex]y \to y + 2[/tex]
9) The entire quadratic equation did not get reflected.
Step-by-step explanation:
7) A horizontal translation to the right is of the form:
[tex]x \to x - a[/tex]
Let [tex]y = -(x-3)^{2} + 2[/tex], then the horizontal translation is represented by [tex]x \to x - 3[/tex].
8) A vertical translation upwards is of the form:
[tex]y \to y + a[/tex]
Let [tex]y = -(x-3)^{2} + 2[/tex] , then the vertical translation is represented by:
[tex]y \to y + 2[/tex]
9) The only component of the quadratic equation that was reflected was the part [tex](x-3) ^{2}[/tex] along the x-axis. We can create the entire function by applying the following steps:
(i) [tex]f(x) = x^{2}[/tex] (Original function)
(ii) [tex]f(x) = (x-3)^{2}[/tex] (Horizontal translation)
(iii) [tex]f(x) = - (x-3)^{2}[/tex] (Reflection)
(iv) [tex]f(x) = -(x-3)^{2} + 2[/tex] (Vertical translation)
The entire quadratic equation did not get reflected.
What is 99,900 rounded to the nearest ten thousand
Answer:
100,000
Step-by-step explanation:
Because the 9 thousand is more than 5.
hey! i’ll give brainliest please help
Answer:
I think it's D
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
They are anxious to get their results
PLEASE HELP WITH GEOMETRY!! CACULATE SURFACE AREA, SHOW WORKw
Answer:
10 x 4 = 40, 40 x 2 = 80
5 x 10 = 50, 50 x 2 = 100
5 x 4 = 20, 20 x 2 = 40
100 + 80 + 40 = 220 ft2
Please help,
Find the area of the figure
Answer:
54
Step-by-step explanation:
I think it's 54
11. A skateboard ramp has a slope of 1/2. What is the angle the ramp makes with
the ground to the nearest degree?
If P = (-1,6), Find: Rx-axis (P).
Can you show me how to do this?
And explain lt to me like I'm 8 xD
appreciate it.
I hate math lol.
Answer:
Step-by-step explanation:
its (-1,-6)
this is your answer
PLZ HELP, DUE TONIGHT!! Find the values of a and b such that f(x) is continuous at x=
Answers:
a = 2 and b = -4
============================================================
Explanation:
Let's define the three helper functions
f(x) = ax^2 - bh(x) = 6j(x) = 5ax+bwhich are drawn from the piecewise function. The g(x) function will change depending on what the input is.
If x < 1, then g(x) = f(x). If x = 1, then g(x) = h(x)If x > 1, then g(x) = j(x)Since we want g(x) to be continuous at x = 1, this must mean the three functions f(x), h(x), j(x) must have the same output value when the input is x = 1.
Because h(x) = 6 is a constant function, the output is always 6 regardless of the input. Therefore, we want f(x) and j(x) to have 6 as their output when x = 1. Or else, the pieces won't connect.
Plug x = 1 into the f(x) function to get
f(x) = ax^2 - b
f(1) = a(1)^2 - b
f(1) = a - b
Set this equal to the desired output of 6 and we end up with the equation a-b = 6. Solving for 'a' leads to a = b+6.
------------
We'll use the same idea for j(x)
j(x) = 5ax + b
j(1) = 5a(1) + b
j(1) = 5a + b
5a+b = 6
5(b+6) + b = 6 ... plug in a = b+6; solve for b
5b+30+b = 6
6b+30 = 6
6b = 6-30
6b = -24
b = -24/6
b = -4
Which then leads to,
a = b+6
a = -4+6
a = 2
------------
Since a = 2 and b = -4, we go from this
[tex]g(x) = \begin{cases}ax^2-b, \ \ x < 1\\6, \ \ x = 1\\5ax+b, \ \ x > 1\end{cases}[/tex]
to this
[tex]g(x) = \begin{cases}2x^2+4, \ \ x < 1\\6, \ \ x = 1\\10x-4, \ \ x > 1\end{cases}[/tex]
Meaning
f(x) = 2x^2+4 and j(x) = 10x-4
You should find that plugging x = 1 into each of those two functions leads to 6 as the output.
The graph is shown below. Note the red graph f(x) is only drawn when x < 1. Similarly, j(x) is only drawn when x > 1. The orange point represents h(x) which only happens when x = 1. So as the name implies, the piecewise function g(x) is composed of pieces of the three functions f(x), h(x), j(x).
Question 2 (5 points)
Write the expression with fewer terms.
10x – 3y + 2x
Answer:
12x - 3y
Step-by-step explanation:
Combine Like Terms
10x + 2x = 12x
Evaluate the following expression when x = 1.5.
Show your work!
7.5 - X
Answer:
6
Step-by-step explanation:
7.5-1.5
=6
that is easy
What is the missing number in the synthetic division problem below?
23 -22 4
6 8 20
3 4 ? 24
A. 2.
B. 8
a
C. 10
D. -6
Given:
A synthetic division problem.
To find:
The missing number it in the given synthetic division problem.
Solution:
The given synthetic division problem is:
[tex]3|\overline{3\quad -2\quad 2\quad 4}\\[/tex]
[tex]\quad 6\quad 8\quad 20\\[/tex]
[tex]\overline{3\quad 4\quad ?\quad 24}[/tex]
In synthetic division, we need to add first and second row to get the bottom row.
[tex]3+0=3[/tex]
[tex]-2+6=4[/tex]
[tex]4+20=24[/tex]
Similarly,
[tex]2+8=10[/tex]
Therefore, the missing value in the given synthetic problem is 10. Hence, the correct option is C.
Octavia is wrapping a cube-shaped gift box with wrapping paper. If the cube's edge has a length of 27.8 in., what is the amount of wrapping paper Octavia needs to wrap the gift?
Answer:
21484.952 ft^3
Step-by-step explanation:
a cube has the same edges so its basically
27.8^3
help me pls i need lots of help pls
Answer:
Its option D :)
---
28° + y + 36° = 180°
In rectangle ABCD, AB = 10 cm and BC = 14 cm. If rectangle EFGH is the image after a dilation, which could be its side lengths?
EF = 6 cm and FG = 10 cm
EF = 7 cm and FG = 3 cm
EF = 15 cm and FG = 20 cm
EF = 25 cm and FG = 35 cm
Answer:
EF = 25 cm and FG = 35 cm
Step-by-step explanation:
After finding each scale factor for each of the 4 answers, only the last option is relatable. Every other option resulted in different numbers of EF and FG.
Answer:
D
Step-by-step explanation:
HELPPPPPPP!!!! 0÷0
Find the RATIO and the EXACT VALUE of the given CscB.
Answer:
Step-by-step explanation:
take angle B as reference angle
using cosec rule
cosec B=hypotenuse/opposite
cosec B=13/12
cosec B=1.08
B=cosec 67
B=67 degree
for ratio,
cosec B=13/12
You received a coupon in the mail for $15 off any pair of Vans so you decide to go shopping. When you walk into the store you find out that there is a sale and all shoes are 30% off! You find a pair of Vans that you love and they cost $55.
Do you use your $15 coupon or take the 30% discount? Which one is the better deal? Be sure to explain your reasoning.
Answer:
the 30% off is better because 30% of 55 is 16.5 and the coupon is for 15 so the 30% off is better.
Step-by-step explanation:
If the length of one side of an equilateral triangle measures 40 cm, what is the length of its altitude? State the letter of the correct answer.
Answer:
the length of its altitude is 34.64 cm
Step-by-step explanation:
Given;
length of a side of the equilateral triangle, L = 40 cm
All the sides of an equilateral triangle are equal
To get the altitude of the triangle, draw a perpendicular line from one of the vertices to intersect the opposite side.
Let the altitude = h
half of the opposite side intersected by the altitude = 20 cm
Apply Pythagoras theorem to determine the altitude 'h'
h² = 40² - 20²
h² = 1200
h = √1200
h = 34.64 cm
Therefore, the length of its altitude is 34.64 cm
Write three fractions equivalent to 27/30. show work
pls pls plssss help I really need this. if you can pls explain too
Answer:
dpr,rpd
Step-by-step explanation:
thats the answers at least i think thats for first.
Answer:
1) ∠P, ∠DPR, ∠KPR, ∠RPD
2) x = 111°
3) x = 5
4) m∠3 = 72°
Step-by-step explanation:
1) All of the angles display ∠P, you will noticed this if you go from the first letter point and it goes to ∠P and to the last letter point with only including ∠P.
2) I already solved this one in a different post of yours. Subtract all known values from 180° to get your answer.
3) Use the same principle knowing that all sides of a triangle add up to 180°. Add all of the angles together, set the equation to 180 and solve for x.
4) By the Alternate Exterior Angles Theorem, If a transversal intersects two parallel lines, then alternate exterior angles are congruent. Therfore, m∠6 ≡ m∠2, and we know m∠2. Solve by subtracting 108° from 180° because angles on the same line add up to 180°.
In August, Cory begins school shopping for his triplet daughters. One day, he bought 3 packages of socks for $8 each and 3 pairs of shoes for d dollars each. Which pair of expressions represent the total amount Cory spent? * A. 3d + 8 and (d + 8)(d + 8)(d + 8) B. 3(d + 8) and (d + 8)(d + 8)(d + 8) C. 3d + 8 and (d + 8) + (d + 8) + (d + 8) O D. 31d + 8) and (d + 8) + (d + 8) + (d + 8) What is the value of the expression? (14 72 - 10.25); 2* 1 point
Answer:
D. 3(d + 8) and (d + 8) + (d + 8) + (d + 8)
II. 2.235
Step-by-step explanation:
Given the following data;
3 packages at $8 each = 3 * 8 = $24
3 pair of shoes at $d each = $3d
I. To find the total amount of money Cory spent;
Total = 3d + 24
Factorizing, we have;
Total = 3(d + 8)
II. To find the value of the expression;
Your expression isn't explicitly written but I'll assume it's this;
(14.72 - 10.25)/2 =
4.47/2 = 2.235