Answer:
4th choice, 20, 21, 29 would be the answer.
Step-by-step explanation:
Pythagorean Theorem: a^2 + b^2 = c^2
a= 20, b= 21, c= 29 ( c has to be the C, hypotenuse, because it is the longest)
therefore,
20^2 + 21^2 = 29^2
into
400 + 441 = 841,
which is true, makes the Pythagorean Theorem work.
Notebooks are originally on sale for $2.00. This school year they were marked up by 15%. What's
the new price for notebooks?
Answer:
the new notebook price is
Step-by-step explanation:
10% of $2.00 is 20 cents. 5% is 10 cents. 20+10= 30. 30 cents. $2.00+30 = $2.30
What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?
A. 10.7a – 8.1b
B. 10.7a + 27.7b
C. 18.1a - 8.1b
D. 18.1a + 27.7b
Answer:
A) 10.7a - 8.1b
Step-by-step explanation:
(14.2a + 9.8b) - (13.1b - 0.2a) - (3.7a + 4.8b)
Combine like terms.
(14.2a + 0.2a - 3.7a) = 10.7a
(9.8b - 13.1b - 4.8b) = -8.1b
Answer:
10.7a – 8.1b
Step-by-step explanation:
An arithmetic sequence is represented by the recursive formula A(n) = A(n-1) + 8. If the first term in the sequence is 4, write the explicit formula
Answer:
A(n) = 4 + 8(n-1)
Step-by-step explanation:
A(n) = A(n-1) + 8
A(1) = 4
So A(2) = A(1) + 8 = 4 + 8
A(3) = A(2) + 8 = A(1) + 8 + 8 = 4 + 8 + 8
A(n) = 4 + 8(n-1)
The explicit formula for the arithmetic sequence with the given recursive formula A(n) = A(n-1) + 8 and the first term A(1) = 4 is A(n) = 8n - 4.
Given that the first term (A(1)) is 4, we can observe that each subsequent term is obtained by adding 8 to the previous term.
The general formula for an arithmetic sequence is A(n) = A(1) + (n-1)d, where A(n) represents the nth term, A(1) is the first term, n is the term number, and d is the common difference.
The first term (A(1)) is 4, and the common difference (d) is 8.
Plugging these values into the general formula, we have:
A(n) = 4 + (n-1)×8
A(n) = 4 + 8n - 8
A(n) = 8n - 4
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Molly read 50 out of the 200 pages in her fiction book. Joel is also reading a fiction book, but his book has 280 pages in total. If Joel reads x pages such as the ratio of pages he read is a equivalent to the ratio of pages molly has read, find the value of x.
Answer:
[tex]x = 70[/tex]
Step-by-step explanation:
Given
Molly: 50 out of 200
Joel: x out of 280
Required
Find x
Start by representing the giving parameters as ration
Molly= 50 : 200
Joel = x : 280
From the question, the ratios are equivalent. So,
[tex]50 : 200 = x : 280[/tex]
Convert to fractions
[tex]\frac{50}{200} = \frac{x}{280}[/tex]
Solve for x
[tex]x = \frac{50}{200} * 280[/tex]
[tex]x = \frac{1}{4} * 280[/tex]
[tex]x = \frac{280}{4}[/tex]
[tex]x = 70[/tex]
awnser please thank you
Answer: [tex]y=\frac{1}{2} x+2[/tex]
Step-by-step explanation:
The format for these equations are y=mx+b. Find the slope, which is the change in y over the change in x. When you apply this formula, you get 1/2. To find the y-intercept, just count from the origin to the place the line meets the y-axis, which is 2. Putting it together, you get the equation [tex]y= \frac{1}{2}x+2[/tex]
what is 4h-8h simplified
Answer:
it is -4h
step-by-step explanation:
Solve the following equation for x.
-4x = 28
Answer:
The answer is x=-7
Step-by-step explanation:
hope that helps
To find the x divide both side by -4
-4x = 28
-4x/-4=28/-4
x= -7
two customers went to a dry cleaners to get clean their shirts and pants. Each shirt cleaning costs the same amount, and each pants cleaning costs the same amount. The first customer paid $30.00 for 5 shirt cleanings and 3 pants cleaning. The second customer paid $29.00 for 3 shirt cleanings and 4 pants cleaning. What was the cost, in dollars, of each shirt cleaning?
Answer:
$3.00
Step-by-step explanation:
5x + 3y = 30 - - - - - 1 x 4
3x + 4y =29 - - - - - -2 x 3
--------------------------------------------
20x +12y = 120 - - - - 3
9x + 12y = 87 - - - - - 4
--------------------------------------------
3-4
20x - 9x= 120 - 87
11x = 33
X= 33
11
X = 3
The cost of cleaning each shirt is 3 dollars.
What is a linear equation?A linear equation is an algebraic equation of degree one. In general, the variable or the variables(in the case of a linear equation in two variables) the variables are x and y.
Assuming the cost of cleaning 1 shirt is x and the cost of cleaning 1 pant is y.
The first customer paid $30.00 for 5 shirt cleanings and 3 pants cleaning.
∴ 5x + 3y = 30...(i)
The second customer paid $29.00 for 3 shirt cleanings and 4 pants cleaning.
∴ 3x + 4y = 29...(ii)
Now to cancel out 'x' in both equations we multiply eqn(i) by 3 and eqn(ii) by 5.
So, 15x + 9y = 90...(iii) and 15x + 20y = 145...(iv)
Now subtracting (iii) from (iv) we get 11y = 55 ⇒ y = 5 and substituting the value of y in eqn(iv) we get x = 3.
The cost of cleaning each shirt is 3 dollars.
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What is (3x2+x-1)(x^4-2x+1)
Answer:
3x^6+x^5-x^4-6x^3+x^2+3x-1
Step-by-step explanation:
Given that a minute hand travels through 360 degrees in an hour, how many degrees does it turn in only 23 minutes?
Answer:
138 degrees
Step-by-step explanation:
360 divided by 60 equals 6
every minute equals 6 degrees
23 * 6 equal 138 degrees
Which representation does NOT show Y as a function of X?
Answer:
D
Step-by-step explanation:
A function is valid if each x input has a different y counterpart
In picture D both 3 and 5 repeat --> (3,2)(2,6) and (5,6)(5,8)
This would create an undefined line that would fail the vertical line test (multiple x values on one y value)
Please answer this correctly, and you'll recieve brainliest.
Answer:
The first one. The square is bc the diamond is actually a square just switching it's placement. SO IT OS THE FIRST ONE
What times 2 is -9? plz help
Answer:
-4.5
Step-by-step explanation:
-9/2= -4.5
Is the order pair 1,2 2,4 3,8 4,16 a function if yes then why
can someone please help will give brainliest.
Answer:
b
Step-by-step explanation:
For a party, the family bought 24 pizzas for $12.50 each and 36 bottles of soda for $1.20 each. How much did the family spend on pizza? Fill in the blank with the numerical answer only. The family spent $_______ on pizza.
For a party, the family bought 24 pizzas for $12.50 each and 36 bottles of soda for $1.20 each. How much did the family spend on soda? Fill in the blank with the numerical answer only. The family spent $_______ on soda.
For a party, the family bought 24 pizzas for $12.50 each and 36 bottles of soda for $1.20 each. How much did the family spend in all? Fill in the blank with the numerical answer only. The family spent $_______ in all. *
PLZ PLZ PLZ HELP I WILL GIVE BRAINLIEST PLZ HELP AND READ ALL QUESTIONS REMEMBER GOD IS GOOD.
Answer:
1) The amount the family spent on pizza is $300
2) The amount the family spent on soda is $43.2
3) The amount the family spent in all is $343.2
Step-by-step explanation:
The number of pizzas bought by the family = 24
The price of each pizza = $12.50
The number of bottles of soda the family bought = 36
The price of each bottles of soda = $1.20
1) The amount the family spent on pizza = 24 × $12.50 = $300
2) The amount the family spent on soda = 36 × $1.20 = $43.2
3) The amount the family spent in all = The amount the family spent on pizza + The amount the family spent on soda
∴ The amount the family spent on soda = $300 +$43.2 = $343.2.
is Jerome's brother correct?
Answer:
No he is not the 3+3 is incorrect and the 3+2 is incorrect everything after 3+1 is wrong because 3+1=4 correct 3+2 =6 incorrect 3+3=9 incorrect and so on
Step-by-step explanation:
Answer:
The table is wrong its + not x
Step-by-step explanation:
Pls help ASAP this is due tmr
Answer: "add by>" ; "65>" ; "go" im pretty sure
Step-by-step explanation:
my brain
20 POINTS HELP NOW PLEASE
Answer:
The relation is a FUNCTION
Step-by-step explanation:
as you can see the value of domain or the x there's no repeating number at all.
Answer:
Not a function
Step-by-step explanation:
(0,3),(3,5) and (0,3),(-6,-2) hit (3,5),(-2,6)
what 1+6? idk guys really confused
lo que uno más seis. Estoy confundido. ¡¡ayuda!!
Answer:
1+6=7
Step-by-step explanation:
Which integer represents 8ºC below 0?
8ºC below 0 is -8ºC (negative eight degrees celsius).
Below means subtract. 0 - 8 = -8.
question: what are the equation and slope of the line shown on the grid
A. Y=-4
slope Unidentifiable
B. y=-4
slope is 0
C. X=-4
slope is unidentifiable
D. X=-4
Slope is 0
Answer:
B. y = -4. Slope is 0
If x = 45, solve for y y = 5/9 x
Answer: Let's solve your equation step-by-step.
yy=59(45)
Answer:
y=5 or y=−5
Answer:
y = 25
Step-by-step explanation:
y = 5/9 x, x = 45
y = 5/9 × 45
y = 5 × 5
y = 25
Simplify the following expression: c + 3c
Answer:
4c
Step-by-step explanation:
1c+3c = 4c
Pls help I will give brainliest . The answer choices are
x=45, y=90
x=45, y=25
x=57, y=25
x=57, y=90
Answer:
The answer is B
Step-by-step explanation:
Answer:
C. x = 57, y = 25Step-by-step explanation:
∠LKU = 1/2∠EKU ⇒ ∠LKU = 1/2(90°) = 45°
(x - 12)° = 45°x = 57°∠KCE = 90° as diagonals of a square are perpendicular
(4y - 10)° = 90°4y = 100°y = 100°/4y = 25°Correct option is C. x = 57, y = 25
What is the vertex for the equation f (x) = 6(x – 10)2 – 4?
Answer:
(10, -4)Step-by-step explanation:
The vertex form of the equation of quadratic function with vertex (h, k) is:
f(x) = a(x - h)² + q
f(x) = 6(x - 10)² - 4 - given function
so:
a = 6, h = 10, q = -4
Which equation combines with the given equation solution x = 3 and y = 9? X + 2y = 21 A. 4x + 6y = 64 B. 2x + y = 36 C. 4x + y = 21 D. -3x + 4y = 33 E. 3x + 2y = 28
Answer:
C. 4x + y = 21
Step-by-step explanation:
X + 2y = 21
A. 4x + 6y = 64
B. 2x + y = 36
C. 4x + y = 21
D. -3x + 4y = 33
E. 3x + 2y = 28
x = 3
y = 9
X + 2y = 21
3 + 2(9) = 21
3 + 18 = 21
21 = 21
A. 4x + 6y = 64
4(3) + 6(9) = 64
12 + 54 = 64
66 is not = 64
B. 2x + y = 36
2(3) + 9 = 36
6 + 9 = 36
15 is not = 36
C. 4x + y = 21
4(3) + 9 = 21
12 + 9 = 21
21 = 21
Please help,thank you
Answer:
No, It is not a function!
Step-by-step explanation:
A graphic artist created the design for a rectangular poster. The design is 12 inches by 9 inches. The poster is 48 inches by 36 inches
What scale factor did the graphic artist use to create the design?
Answer:
4
Step-by-step explanation:
Step one:
given data
The design is 12 inches by 9 inches.
[tex]length = 12 in\\\\width = 9 in[/tex]
The poster is 48 inches by 36 inches
[tex]length = 48in\\\\width = 36 in[/tex]
Step two:
divide the dimension of the poster by the dimension of the design to get the scale factor
[tex]L= 48/12= 4\\\\W= 36/9= 4[/tex]
Hence the scale factor is 4
Answer:
if im wrong im sorry but i think it is 1/4
Stet is p-by-step explanation:
Solve one fifth ÷ 3 = ___.
a one seventh
b one eighth
c one tenth
d one fifteenth
Answer:
1/5 divided by 3 is 1/15
Step-by-step explanation:
Answer:
D. one fifteenth
Step-by-step explanation: