Answer:
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Step-by-step explanation:
Statistics
Ethan repairs household appliances such as dishwashers and refrigerators. For each visit, he charges $25 plus $20 per hour of work. A linear equation that expresses the total amount of money Ethan earns per visit is y = 25 + 20x. What are the independent and dependent variables? What is the y-intercept, and what is the slope? Interpret them using complete sentences.
Find the measure of angle b
Answer:
77°
Step-by-step explanation:
Angles on a straight line add up to 180
180 - 103 = b
180 - 103 = 77
Does the number line below represent the solution to the inequality x > -2?
Answer:
B I aplogize if its wrong i haven't done this type of math in a couple years so its foggy
Hope it Helps!
please help!!!!!! i need this done asap!!! brainliest to whoever answers!!
Answer:
volume = Pi(2x^2+3x-5) x (2x+5)^2 or P1(8x^4+52x^3+100x^2-125)
Step-by-step explanation:
radius = (4x+10)/2 = 2x+5
volume = Pi(2x^2+3x-5) x (2x+5)^2
volume = Pi(2x^2+3x-5) x (4x^2+20x+25)
volume = P1(8x^4+52x^3+100x^2-125)
Can somebody plz help answer all these questions correclty (if u know how to do this) thanks :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD
Answer:
29.) 7.2 + 3 = 10.2
30.) 15.5 + 2 = 17.5
31.) 0.8 + 11 = 11.8
32.) 8.7 + 9 = 17.7
33.) 21.8 + 6 = 27.8
34.) 1.6 + 8 = 9.6
Hope this helps!
Step-by-step explanation:
29. m-3= 7.2
1. add three on both sides
30. n-2= 15.5
1. add two on both sides
The same applies to the rest.
What is area of figure. The height is 10m base is 25 m
Answer:
If it is a 4-sided figure: 250 m
If it is a triangle: 125 m
Step-by-step explanation:
This is for my friend so if you could solve this asap that would be great
Answer:
1. 5x^2 − 3x − 2
2. 4s^2 −28s + 49
3. 4y^2 + 9y + 8
Answer:
[1] 5x² - 3x - 2[2] 4s² - 28s + 49[3] 4y² + 9y + 8Explanation:
(3x² + 4) - (-2x² + 3x + 6)Remove Parenthesis: (a) = a
3x² + 4 - (-2x² + 3x + 6)
Simplify -(-2x² + 3x + 6): 2x² - 3x - 6
3x² + 4 + 2x² - 3x - 6
Simplify 3x² + 4 + 2x² - 3x - 6
5x² - 3x - 2
(2s - 7)²Apply Perfect Square Formula: (a - b)² = a² - 2ab + b²²: a = 2s, b = 7
(2s)² - 2 · 2s · 7 + 7²
Simplify (2s)² - 2 · 2s · 7 + 7²
4s² - 28s + 49
(7y² + 9y - 2) + (-3y² + 10)Remove Parenthesis: (a) = a
7y² + 9y - 2 - 3y² + 10
Group Like Terms
7y² - 3y² + 9y - 2 + 10
Add Similar Elements: 7y² - 3y² = 4y²
4y² + 9y - 2 + 10
Add: -2 + 10 = 8
4y² + 9y + 8
Which of the division expressions below has a remainder? Select all that apply.
A) 234 : 4
B) 1,350 = 9
C) 794 : 6
D) 812 : 8
E) 12,416 : 4
Answer: 8
Step-by-step explanation:
Answer:
A, C, D
Step-by-step explanation:
pls help me find the two words using the letters
Answer:
nest ,shot,west,then,show,
hope it helps you
a farmer was on his tractor and drove by some chickens and pigs in his field he counted 30 heads and 84 legs
*REUPLOAD* PLEASE ANSWER W EXPLANATION
Answer:
There are 18 pigs and 12 chickens.
Step-by-step explanation:
p = # of pigs
c = # of chickens
I'm assuming each animal has one head and all the pigs have 4 legs and all the chickens have 2 legs, therefore:
p+c = 30
4p+2c = 84
Elimination:
-2(p+c = 30) -2p -2c = -60
4p +2c = 84 4p +2c = 84
2p = 24
p = 12
Now substitute p for 12:
12 + c = 30
c = 18
Check:
4(12) + 2(18) = 84
48 + 36 = 84
84 = 84
There are 18 chickens and 12 pigs.
2r - 1⅔r ＞ -⅓ solve the inequality
Answer:
r > -1.
Step-by-step explanation:
2r - 1⅔r ＞ -⅓
1/3 r > -1/3
r > -1/3 / 1/3
r > -1.
Answer:
r>1/3 ima put the explanation in the comments
The kiddie pool has a hole in it and is losing water at a rate of 24 fl oz per minute. What is the change in amount of water in the pool after four minutes? Write an expression, write the answer as an integer, then interpret the answer in the context of the problem.
Expression: Answer (as integer):
Interpretation:
expression: -24 * 4
Integer: -96
The pool loses 96 fl oz of water after 4 minutes.
What is the value of the expression?
2 x[(-6 + 4) X (5 + 9) - 3]
Answer:
- 62
Step-by-step explanation:
Calculate the sums within the brackets first and then multiplication, as stated by the BOMDAS rule.
B = Brackets
O = ?
M = Multiplication
D = Division
A = Addition
S = Substitution
(- 6 + 4) = -2
(5 + 9) = 14
- 2 × 14 = -28
- 28 - 3 = - 31
2 × - 31 = - 62
Disclaimer: I am not sure if one of the x's is used as a variable or not
Any claims that m4+m5=m10+m9, Is Amy correct? Use mathematics language to justify your response.
y = 2x - 8
x-y=3
What is X and Y
Answer:
x = 5
y = 2
Step-by-step explanation:
In this question, you will have to use one of the equations to find the value of x in terms of y and substitute it in the other equation or vice versa.
y = 2x - 8
x - y = 3
Use the second equation to find the value of x in terms of y.
x - y = 3
x = y + 3
Now that we found that, we can substitute it in the other equation.
y = 2 (y + 3) - 8
y = 2y + 6 -8
y = 2y -2
y + 2 = 2y
y = 2
Now that we got y we can substitute the value in any of the equations to find x.
x - 2 = 3
x = 5
What is the mean of the data set (0,0,0,5,6,7,10)
Answer:
4
0+0+0+5+6=7+10 = 28
28 divided by 7 is 4
To find mean you need to add up all the numbers then divided them by the total number of numbers there are. 0+0+0+5+6=7+10 has 7 numbers so I divided 28 by 7.
Brainliest?
Solve the equation for x. If necessary round to the nearest tenth.
x² = 17
X=
+
Answer:
x = 4.1 & x = −4.1
Step-by-step explanation:
[tex]x^2 = 17\\[/tex]
x = ±√17
x = √17, −√17
x = 4.1 & x = −4.1
cual es la raiz cuadrada de 100
Answer:
10
Step-by-step explanation:
Decide if a triangle is possible with the
lengths of sides given. Please help! DUE TODAY!! Big part of grade!
Answer:
yes, yes, no, yes, yes (x > 0)
Step-by-step explanation:
the longest side must not be greater than the other 2 sides added up.
5 + 7 > 8 (yes)
10 + 3 > 11 (yes)
16 + 5 = 21 (no)
4 + 1.4 > 5 (yes)
3x + 4x > 5x (yes, x > 0)
PLEASE HELP ASAP?!?
What are the sine, cosine, and tangent ratios for
In the game “Sandwich” three cards are dealt from a 52-card deck. To win, the value of the third card must be between the first two cards. What is the probability of winning given the first two cards dealt are a 6 and a 10?
Show ALL work!!!
Answer:
[tex]\frac{3}{13} ,\frac{12}{52}[/tex]
Step-by-step explanation:
In a 52 card deck there a 4 of ech individual card
There are 3 card values between 6 and 10, (7,8,9)
[tex](3)(4)=12[/tex]
12 out of the 52 cards could win the game, so there is a probability of
[tex]\frac{12}{52}[/tex] [tex]or[/tex] [tex]\frac{3}{13}[/tex]
plz mark me brainliest. :)
In a drill, Mark gives Fred a 45 meter head start. After t seconds, Fred is a distance 5t +45 from the starting line andMark is a distance of 6t from the starting line. How far ahead of Mark is Fred after t seconds?
Answer: After t seconds, Fred is far away from Mark by (45-t).
Step-by-step explanation:
Given: Mark gives Fred a 45meter head start.
After t seconds, the distance of Fred from the starting point = 5t+45
The distance of Mark from the starting point = 6t
Now, Distance between Fred and Mark after t seconds = Location of Fred - Location of Mark
= (5t+45)-6t
= 5t+45-6t
= 45-t
Hence, After t seconds, Fred is far away from Mark by (45-t).
Help me please with this question I’m lost
help please, the image is attached.
Answer:
A
Step-by-step explanation:
A
A chef uses 1/2 cup of tomatoes for every 1/8 cup of onions to make salsa. How many cups of onions will the chef need for 1 cup of tomatoes? Enter the answer as a decimal.
Answer:
0.25cups
Step-by-step explanation:
if it is 1 cup then we are doubling the amount of onions so
1/8 x 2= 1/4= 0.25cups
Which rule describes the pattern for the table's Input and Output values?
A. add 2
B. add 10
C. subtract 7
D. divide by 2
PLEASE HELP I WILL MARK YOU BRAINLIEST!
answer:
a.add 2
Step-by-step explanation:
A function rule describes how to convert an input value (x) into an output value (y) for a given function. An example of a function rule is f(x) = x^2 + 3. A function table is another name for an input-output table, a table that shows how a value changes according to a rule.
Manuel pays $ 500 per year fees to his homeowner's association. Next year, the association is increasing its fee by 5%
How much will Manuel pay next year?
Answer:
525
5 percent of 500 is 25
25 + 500=525
Which expression gives the measure of ABC?
A. 1/2(110° + 20°)
B. 1/2(110 -20°)
C. 110° - 20°
D. 110° + 20°
Answer:
A. 1/2(110° + 20°)
Step-by-step explanation:
[tex] \huge \orange{m\angle ABC} \pink{ = } \purple{\frac{1}{2} (110 \degree + 20 \degree)}[/tex]
Answer:
A
Step-by-step explanation:
The chord- chord angle ABC is half the sum of the arcs intercepted by the angle and its vertical angle, that is
∠ ABC = [tex]\frac{1}{2}[/tex] (110 + 20)° → A
= 0.5 × 130°
= 65°
16. у 7x; х -5
(Help this is due today)
Answer:
Sorry that me lines are bad :(
Step-by-step explanation:
Hope this helps ;) ;p
m over 4=8 the answer is 32 what are the steps to this equation?
Explanation:
4x+8=32
Isolate for x. Start by subtracting 8 from both sides of the equation.
4x+8−8=32−8
4x=24
Divide both sides of the equation by 4.
4x4=244
x=6