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Explanation:
1 chair = 225 dollars
c chairs = 225c dollars .... multiply both sides by c
This shows that buying c chairs costs 225c dollars
c is a placeholder for a positive whole number
Add on the $60 shipping cost to get the total cost 225c+60
Therefore s = 225c+60
Select all the ratios that are equivalent to each other
A. 4:7
B. 8:15
C. 16:28
D. 2:3
E. 20:35
Answer: C. 16:28 & E. 20:35
Please mark as brainliest!
Answer:
Option A , Option E and Option C are the same.
Step-by-step explanation:
Option A :
[tex]4:7[/tex]
Can not be simplified further
Option B :
[tex]8:15[/tex]
Can not be simplified further
Option C :
[tex]16:28 \\ = \frac{16}{28} = \frac{4}{7} \\ 4:7[/tex]
Option D :
[tex]2:3[/tex]
Can not be simplified further
Option E :
[tex]20:35 \\ = \frac{4}{7} \\ 4:7[/tex]
Can not be simplified further
i need help with this question
Answer:
Triangle ABC is congruent to Triangle DCB because of SSS
Step-by-step explanation:
1.)AB congruent to DC because of given.
2.)BD congruent to CA because of Given
3.)We can say that BC congruent to CB because of Reflexive property.
4.)Triangle ABC is congruent to Triangle DCB because of SSS(1,2,3)
A = -3
B = -1/3
C = 1/3
D = 3
Answer:
D
Step-by-step explanation:
The slope m is a measure of the rate of change
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (0, - 4) and (x₂, y₂ ) = (1, - 1) ← 2 points on the line
m = [tex]\frac{-1+4}{1-0}[/tex] = [tex]\frac{3}{1}[/tex] = 3 → D
If you could help me with the questions it would be greatly appreciated.
Answer:
I believe that number 1 is x=5
Step-by-step explanation:
Answer:
I believe that number 1 is x=5
Step-by-step explanation:
For what values of [tex]x[/tex] is the product [tex](x+5)(x-1)[/tex] positive? Explain.
Answer:
[tex]x<-5\text{ or } x>1[/tex]
Step-by-step explanation:
We have:
[tex](x+5)(x-1)[/tex]
And we want to find the value of x such that the expression is positive. So, we can write this as the following inequality:
[tex](x+5)(x-1)>0[/tex]
Solve for the inequality. First, we can solve for the zeros like a normal quadratic. So, pretend the inequality is with an equal sign:
[tex](x+5)(x-1)=0[/tex]
Zero Product Property:
[tex]x+5=0\text{ or } x-1=0[/tex]
On the left, subtract 5.
On the right, add 1.
So, our zeros are:
[tex]x=-5, 1[/tex]
Since our inequality is a greater than, our answer is an "or" inequality with our answer being all the values to the left of our lesser zero and all the values to the right of our greater zero.
So, our solution is:
[tex]x<-5\text{ or } x>1[/tex]
And we're done!
Answer:
The regions where (x+5) (x-1) >0 is x< -5 or x>1
Step-by-step explanation:
(x+5) (x-1) >0
First find the zeros
(x+5) =0 x-1 =0
x= -5 x=1
We then have to check the regions
x< -5 -5 <x<1 x>1
First x< -5
(x+5) (x-1)
X+5 will be negative ( x-1) will be negative
(-) * (-) = + so the values will be positive
Then -5 <x<1
X+5 will be positive ( x-1) will be negative
( +) * (-) will be negative
First x>1
(x+5) (x-1)
X+5 will be positive ( x-1) will be positive
(+) * (+) = + so the values will be positive
The regions where (x+5) (x-1) >0 is x< -5 or x>1
4.64 × 10^2 in standard form
Answer:
464
Step-by-step explanation:
Hope This Helps!
PEMDAS PLEASE HELPPPP!
Answer:
90xyz ÷xy
input the unknowns
x = 3, y = 5, z = 2
90*3*5*2 ÷ 3*5
2700 ÷ 15 = 180
Just to clarify, PEMDAS, is just an abreviation for:
P - Parentheses
E - Exponents
M - Multiply
D - Divide
A - Add
S - Subtract
These are called order of operations following which part of you're equation you solve first. Hope this helped :)
what is 0.4repeating as a fraction?
Answer:
11/25
Step-by-step explanation:
Why the following triangles are congruent!
Answer:
Because the sides BO and MA are marked with one line through the middle, which means those sides are congruent, angle A and Angle O are marked with one line, the angles are congruent, and angles W and N are marked with two lines, which means they are congruent. Therefore the triangles are congruent
Danny charges $30 for 3 hours of swimming lessons, Martin charges $44 for 4 hours of swimming lessons. Who offers a better deal?
Answer:
Danny
Step-by-step explanation:
danny has a better offer
how would i solve (4x 3 + 7y 3z 4) 2 ?
Answer:
=(4x*3+7z*3z*4)*2
=(12x +84z²) *2
ans =24x+168z²
Step-by-step explanation:
ur question is wrong i guess check it plzz
Pleaseeee helppppp!!!!
If h(x)=x2−3x+5, what is h(−3)?
23
5
-13
20
Which expression is equivalent to 3(4x + 2/3) -7x + 3/8
Answer:
= 5x+ 19/8
Step-by-step explanation:
=12x+2-7x+ 3/8
=5x + 19/8
Simplify 2x^7 times x^-4
Answer:
The answer is B
2x to the power of 3
Step-by-step explanation:
2x to the power of 7 minus 4 equals
2x to the power of 3
Determine whether the sum or product will be rational or irrational.
1. 10 + 0.01
Rational / Irrational
2. 12 + 0.05
Rational / Irrational
3. 15 +0.07
Rational / Irrational
4. 17 + 0.02
Rational / Irrational
5. 77 + 8
Rational / Irrational
Answer:
1. Rational
2. Rational
3. Rational
4. Rational
5.Rational
Step-by-step explanation:
Hey You seem don't understand the Rational numbers and Irrational numbers
I will give you the example here
Irrational numbers are the numbers that has des keep going forever, like Pi,
will but keep going forever and has NO PARTERN. if it was like 1.4141414141414141414141414..... thats not a Irational numbers
where Rational number are like: 1,3,-1,7/10......
quick math question, please help^^
Answer:
x= 81
Step-by-step explanation:
see attached the solution
Which side of triangle XYZ is the longest. x=62, y=55, and z=63
Answer: XY should be the answer
Step-by-step explanation: A guess I took and got right
-4(b+3)-12=2b-16+5b tell each property used in each step to solve the equation
Answer:
b= - 8/11
Step-by-step explanation:
-4b-24=7b-16
-4b-24+24=7b-16+24
-4b=7b+8
-4b-7b=7b+8-7b
-11b=8
-11b/-11 = 8/-11
b= - 8/11
Show Your Work
Please help I’ll mark brainliest
Answer:
(c)
Step-by-step explanation:
3+2+4 = 9, 4+2= 6- 3= 3
angle is bisected, forming two new angles. If the original angle had a measure of 52° t is the measure of each new angle? Enter the number only. help asap
The measure of each new angle is 26°
How do functions and slopes work i dont understand anything work?
Explain how you would solve for the value of x when you are given the solution to a function.
Answer:
Substitute
Step-by-step explanation:
Substitute the values given in the function
and you will get the answer.
P.s. It depends on the question
is (-3,1) run over rise or rise over run?
Answer: i'm pretty sure coordinates are always rise over run but i'm not sure i would look it up
Step-by-step explanation:
Jason kicked a soccer ball that was lying on the ground. It was in the air for 3 seconds before it hit the ground again. While the soccer ball was in the air it reached a maximum height of 30 ft. The height of the ball while in the air is the function of time.
Answer:
a) The domain is 0 < t < 3
The range is 0 < s < 30
b) The x-intercept are the times at the start and return of the ball to the ground
The y-intercept, is the starting height of the ball = 0
c) The axis of symmetry is the line t = 1.5, and the maximum function is the value of the height at the vertex of the parabola, they represent the turning point of the function
d) The rate of change of the function is therefore given by the derivative of function which is;
ds/dt = d(14.715×t - 1/2×9.81×t²)dt = 14.714 - 9.81×t which is the velocity of the ball at time t
∴ ds/dt = 14.714 - 9.81×t
Which is the velocity of the ball at time t
Step-by-step explanation:
The duration the soccer ball was in the air = 3 s
The maximum height reached by the soccer ball = 30 ft.
Considering the vertical motion of the ball, we have;
v = u - gt
s = u·t + 1/2·g·t²
v² = u² - 2×g×s
Where;
v = The final velocity of the ball = 0 m/s
u = The initial velocity of the ball
g = The acceleration due to gravity = 9.81 m/s²
s = The height the ball reaches = 30 ft
Given that the time to maximum height = Half the total time it was in the air, we have;
v = u - gt
v = 0 at maximum height
u = gt = 9.81 × 3/2 = 14.715 m/s
The vertical velocity = 14.715 m/s
Therefore, we have;
s ≈ 14.715×t - 1/2×9.81×t²
a) The domain is 0 < t < 3
The range is 0 < s < 30
b) The x and y-intercept are;
x-intercept, s = 0, gives;
0 ≈ 14.715×t - 1/2×9.81×t²
From which we have, t = 0 or t = 3, which are the times at the start and return of the ball to the ground
The x-intercept are the times at the start and return of the ball to the ground
The y-intercept, t = 0, gives;
s = 14.715×t - 1/2×9.81×t² = 14.715×0 - 1/2×9.81×0 = 0
Therefore, at the time t = 0 the ball is lying on the ground, height = 0
∴ The y-intercept, is the starting height of the ball = 0
c) The axis of symmetry is the line t = 1.5, and the maximum function is the value of the height at the vertex of the parabola
They represent the turning point of the function
d) The rate of change of the function is therefore given by the derivative of function which is;
ds/dt = d(14.715×t - 1/2×9.81×t²)dt = 14.714 - 9.81×t
∴ ds/dt = 14.714 - 9.81×t
Which is the velocity of the ball at time t.
Students on an academic team took a test to enter a math competition. They could take the test twice. Some students improved their score, while others did not. The table shows the change in score for each student. Which student had the greatest overall change in his or her score?
Student Test Score Change
Joe –2
Nivea 3
Juanita 4
Li –3
Juanita had the largest change. (+4 points)
The sequence -9,-15,-21,-27 is a
Arithmetic sequence or Geometric sequence
Answer:
Arithmetic sequence
Step-by-step explanation:
It's Arithmetic sequence, because it's basically the list of integers that can be added, or subtracted by a same number every time. So, according to the following sequence shown, it shows that it's subtracting by [tex]6[/tex] every time.
some please help!!!!!!!!!!!
Answer:
its d you welcome
Step-by-step explanation:
you need -6 times 2 = 12 in absolute value
Answer: 12
Step-by-step explanation:
12/-1=12.000000
Susan earned $220 babysitting last week.
On Monday she earned $30 and spent $5.
On Tuesday she earned $35 and spent $25.
On Wednesday she earned $60 and spent $40.
On Thursday she earned $30 and spent $15.
On Friday she earned $65 and spent $25.
Note: Money earned is (+) and money spent is (-)
What is the absolute value of the difference between the money she made on Tuesday and the money she spent on Friday?
Group of answer choices
60
25
10
35
answer for free brainly
Answer
35-25 =15
65-25=45
Step-by-step explanation:
45-15=35 35 = answer
pls can i have that brainly
What is the slope of this question help???
Answer:
I would love to!
The slope is 3, or 3/1
Step-by-step explanation:
To find the slope, you have to count the rise over run. 3 over 1. The best way to find this, is to go up each unit until you see that the line touches an exact point. Once you find that, go over.
Answer:
y = 3x + 10
Step-by-step explanation:
When x=0, y = 10
When y=0, x = -3.3333333333333
