Answer:
d) [tex]2 ({(2x)}^{2} + {(3y)}^{2} ) \\ [/tex]Step-by-step explanation:
[tex] {(2x + 3y)}^{2} + {(2x - 3y)}^{2} \\ (2x + 3y)(2x + 3y) + (2x - 3y)(2x - 3y) \\ 2x(2x + 3y) + 3y(2x + 3y) + 2x(2x - 3y) - 3y(2x - 3y) \\ {4x}^{2} + 6xy + 6xy + {9y}^{2} + {4x}^{2} - 6xy - 6xy + {9y}^{2} \\ {4x}^{2} + 12xy + {9y}^{2} + {4x}^{2} - 12xy + {9y}^{2} \\ {4x}^{2} + {9y}^{2} + {4x}^{2} + {9y}^{2} \\ {8x}^{2} + {18y}^{2} \\ 2( {4x}^{2} + {9y}^{2} ) \\ 2( {2}^{2} {x}^{2} + {3}^{2} {y}^{2} ) \\ 2({(2x)}^{2} + {(3y)}^{2}) \\[/tex]
Step-by-step explanation:
d num i think 2((2x)^2+(3y)^2)
Cómo se resuelve esto?
(2-x)²=36
Answer:
Step-by-step explanation:
You have to factor but we start by simplifying both sides which will be x^2-4x+4=36. Then you subtract 36 from both sides
x^2-4x+4-36=36-36
x2-4x-32
Now that the equation is set up, you can factor
(x+4)(x-8)Set the factors equal to 0
x=-4 or
x=8
Help!! I’ll mark brainly list but explain
Answer:
0.125
Step-by-step explanation:
(4)(-2)-3(-3)/3+5=
1/8=
0.125
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
let's evaluate :
[tex] \dfrac{(4a - 3b) {}^{3} }{c + 5}[/tex]In the given expression, let's plug the value of
a = -2 b = -3c = 3so,
[tex] \dfrac{ \{(4 \times (- 2)) - (3 \times (- 3)) \} {}^{3} }{3 + 5}[/tex][tex] \dfrac{ \{ - 8 - ( - 9) \} {}^{3} }{8}[/tex][tex] \dfrac{ \{ - 8 + 9 \} {}^{3} }{8}[/tex][tex] \dfrac{(1) {}^{3} }{8} [/tex][tex] \dfrac{1}{8} [/tex]Factorize the following
7x + 19x + 12
3x square - 13x + 10
6y square + 3y - 9
Answer:
2(13x+6)
(3x-2)(x+5)
3(y-1)(2y+3)
Step-by-step explanation:
hoffe das hilft
Q. Which of these represents stope-intercept form of a linear equation?
answer choices
A)Ax+By=c
B)y-yı = m-x)
C)y=kx
D)y=mx + b
Answer:
D
Step-by-step explanation:
this is so easy just plug the question in
Answer:
D.y= mx + b
Step-by-step explanation:
Slope-intercept is a specific form of linear equations. It has the following general structure
y= mx + b
Here, m can be any two real numbers. For example, these are linear equations in slope-intercept form:
y=2x+1
y=-3x+2.7y
y=10-100x
On the other hand, these linear equations are not in slope-intercept form:
2x+3y=5
y-3=2(x-1)y−3=2(x−1)
x=4y−7
Slope-intercept is the most prominent form of linear equations
Which quadratic equation contains the three points (-4,12), (2,42), and (3,40)
The quadratic equation that contains the three points is y = -x² + 3x + 40
A quadratic equation is in the form:
y = ax² + bx + c
At point (-4, 12):
12 = a(-4)² + b(-4) + c
16a - 4b + c = 12 (1)
At point (2, 42):
42 = a(2)² + b(2) + c
4a + 2b + c = 2 (2)
At point (3, 40):
40 = a(3)² + b(3) + c
9a + 3b + c = 40 (3)
Solving equation 1, 2, and 3 gives:
a = -1, b =3, c = 40
y = -x² + 3x + 40
Hence the quadratic equation is y = -x² + 3x + 40
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a rectangular hall is 16 m tall and 12 metre wide. how many marble slabs of size 25 CM X 15cm needed to cover the floor of the hall?
Answer:
5120 tiles.
Step-by-step explanation:
Do one thing.
Find out the area of the rectangular hall.
Find out the area of the marble slab.
Remember, the units are to be made same.
Now, to know the number of marble tiles required to fill the hall, you just have to divide the area of the hall with the area of the marble tile.
Calculations-
Area of the rectangular hall = length x width = 1600 x 1200 (we converted 'm' to 'cm') = 1920000 sq. cm.
Area of one marble tile = 25 x 15 = 375 sq. cm.
Now you divide the numbers and get 5120 tiles.
help me please
in a sale, the normal price of a hat is reduced by 15%
The sale price of the hat is 20.40 euros.
Work out the normal price of the hat.
Answer:
The correct answer is 24
Step-by-step explanation:
To solve this math problem, you will need to divide 20.40 with 1 (1 is 100% as a decimal) and 0.15 (0.15 is 15% as a decimal).
--
[tex]20.40[/tex] ÷ [tex](1-0.15)[/tex]
--
First, subtract 1 and 0.15
[tex]1-0.15=0.85[/tex]
Next, divide 20.40 and 0.85
[tex]20.40[/tex] ÷ [tex]0.85 = 24[/tex]
--
Therefore, the final product of this math problem is 24
Solve 4a = 20
solve 3y + 9 = 24
solve y/3 - 5 = 4
solve 3=9 - 4k
solve 6w=4w=9
solve 3x + 8 = 2
please answer with an explanation
60 points given
Here's the solutions :
1. solve for a :
[tex]4a = 20[/tex][tex]a = \dfrac{20}{4} [/tex][tex]a = 5[/tex]2. solve for y :
[tex]3y + 9 = 24[/tex][tex]3y = 24 - 9[/tex][tex]3y = 15[/tex][tex]y = \dfrac{15}{3} [/tex][tex]y = 5[/tex]3. solve for y :
[tex] \dfrac{y}{3} - 5 = 4[/tex][tex] \dfrac{y}{3} = 5 + 4[/tex][tex] \dfrac{y}{3} = 9[/tex][tex]y = 9 \times 3[/tex][tex]y = 27[/tex]4. solve for k :
[tex]3 = 9 - 4k[/tex][tex]3 - 9 = -4 k[/tex][tex] - 6 = - 4 k[/tex][tex]k = \dfrac{ - 6}{ - 4} [/tex][tex]k = \dfrac{3}{2} \: \: \: or \: \: 1.5[/tex]5. there's something wrong with this question.
6. solve for x :
[tex]3x + 8 = 2[/tex][tex]3x = 2 - 8[/tex][tex]3x = - 6[/tex][tex]x = \dfrac{ - 6}{3} [/tex][tex]x = - 2[/tex]i hope it helped...
Mrs. Peña is taking a group of 50 students on a field trip to the Georgia Aquarium. If 20 of the students are boys, what percent of the students are boys?
Answer:
40%
Step-by-step explanation:
20/50 = 40/100 = 40%
A loading dock manager is unpacking a delivery truck that has 57 boxes of shoes and 26 boxes of socks.
What is the ratio of boxes of socks to boxes of shoes?
26 : 83
26 : 57
57 : 83
57 : 26
Jeff wants to buy tickets for a football game for his friends. The stadium is selling tickets for $7 each. The stadium requires a
person to buy at least 4 tickets, and at most 8 tickets. Let x represent the number of tickets, and y represent the total cost.
What is a reasonable range for the price Jeff would pay for tickets?
Group of answer choices
{11, 18, 25, 32, 39}
{28, 35, 42, 49, 56}
{4, 5, 6, 7, 8}
{28, 42, 56, 70, 84}
Your answer is D){28, 42, 56, 70, 84}
To answer this question you just have to make sure the amount he pays is a multiple of 7.If you know you times table then this should be easy
Times table of 7:
7,14,21,28,35,42,49,55,63,70,77,84.
Now you just need to find an answer choice who has these numbers.Lets check it out!
A) 11 isn't a multiple of 7
B) 56 isn't a multiple of 7
C) None of these are multiples of 7 except 7 so this is also incorrect
D) This is correct because they are all multiples of 7
Hope this makes sense.
Select the correct answer.
Answer:
B. x = -5
Step-by-step explanation:
-8(x+5) = -3x - 7 + x - 3
distribute the -8
-8x - 40 = -3x - 7 + x - 3
combine like terms
-8x - 40 = -2x - 10
add 40 to both sides
-8x = -2x + 30
add 2x to both sides
-6x = 30
divide both sides by -6
x = -5
Which of the following statements is not true
Answer:
The slope of AB is different from the slope of BC is NOT TRUE.
Step-by-step explanation:
AB and BC are on the same straight line, so their slopes are the same.
The graph shows the amount of money you and a friend are saving for a camping trip.
You: 4 weeks 60 dollars. 8 weeks 120 dollars.
Friend: 2 weeks 40 dollars. 5 weeks 100 dollars
B) Find the slope of each line.
C) How much more money does your friend save each week than you?
D) The camping trip costs $165. How long well it take you to save enough money
Convert 34.0 dm to km. Show all work.
Step-by-step explanation:
Convert 34 Decimeters to Kilometers (dm to km) with our conversion calculator and conversion tables. To convert 34 dm to km use direct conversion formula below.
34 dm = 0.0034 km.
You also can convert 34 Decimeters to other Length (popular) units.
Answer:
34dm=0.0034km
Step-by-step explanation:
1dm=0.0001km
0.0001 times 34= 0.0034.
∠A and \angle B∠B are complementary angles. If m\angle A=(7x+23)^{\circ}∠A=(7x+23)
∘
and m\angle B=(5x+19)^{\circ}∠B=(5x+19)
∘
, then find the measure of \angle B∠B.
Since there are complementary angles, the value of angle B is 39°.
Angle A = 7x + 23°
Angle B = 5x + 19°
It should be noted that the total angles in a complementary angle are equal to 90°.
Therefore, we need to add angle A and B together and then equate them to 90°. This will be:
7x + 23° + 5x + 19° = 90°
Collect like terms
12x + 42° = 90°
12x = 90° - 42°
12x = 48°
x = 48°/12
x = 4°
Angle A = 7x + 23° = 7(4) + 23° = 28° + 23° = 51°
Angle B = 5x + 19° = 5(4) + 19° = 20° + 19° = 39°
The value of angle B is 39°.
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A scale model of a bus is 12 inches long. The scale is 1:21. How many inches long is the bus it
represents?
its 304.8 milimeter
The actual length of the bus that the scale model represents is 252 inches.
To find the actual length of the bus represented by the scale model, you can use the scale ratio.
Given:
Scale model length = 12 inches
Scale ratio = 1:21
Let "x" be the actual length of the bus.
Using the scale ratio:
Scale model length / Actual length = Scale ratio
12 inches / x inches = 1/21
Now, solve for "x":
x = 12 inches / (1/21)
x = 12 inches × 21
x = 252 inches
Therefore, the actual length of the bus that the scale model represents is 252 inches.
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a 12-pack of orange crush is priced at 3.00 a six-pack is priced at 1.75. which is the better value
Answer:
12 pack
Step-by-step explanation:
buying 2 of the 6 packs cost 3.50 while the 12 pack cost 3.00
We can calculate the total price in dollars (d) based on the pounds of ribeye steak (s) sold using the equation d=8s. What would be the total price (d) of 4 pounds of steak?
Answer:
$32
Step-by-step explanation:
The variables in this equation are already defined. So we know that whatever d is equal to will be the cost, and therefore, the final answer. Additionally, s is the number of pounds of steak, so it is an independent variable. To solve this equation, plug in the number of pounds, 4, into the equation for s. Also, 8 is the unit price for the steak, so this multiplied by the amount of steak must be the total cost. This makes the new equation, d=8(4). Finally, multiply these numbers to get d=32. So the final cost for 4 pounds of steak must be $32.
Answer:
32 dollars
Step-by-step explanation:
The Equation to calculate the total price(d) based on the pounds of ribeye steak(s) sold if given as:
d = 8S
So, to calculate the total price(d) of 4 pounds of steak, all we need do is to substitute 4 into the given formula
That is,
d = 8(4)
d = 32 dollars
Therefore the price of 4 pounds of steaks is 32 dollars
Of the 75 students in the cafeteria, 11 of them had chocolate milk to drink. If there are 750 students in the school, predict the number of students who drank chocolate milk.
Answer:
I predict 74 is the answer. Sorry if I am wrong.
find the length of the hypotenuse of the right triangle. leave your answer in simplest radical form. not drawn to scale.
Answer:
it need to =90
Step-by-step explanation:
HELP! whoever answers will get 90 points
Answer:
Step-by-step explanation:
a) Meal price | Remaining
$15 | $37.75
$21 | $30.85
$24 | $27.40
$30 | $20.50
b) (20.5 - 27.4)/(30-24) = -6.9/6
f(m) = 55 - 1.15m = -1.15m + 55
c) Use a graphing utility
c) Use a graphing utility
_________________
a) Meal price | Remaining
$15 | $37.75
$21 | $30.85
$24 | $27.40
$30 | $20.50
b) (20.5 - 27.4)/(30-24) = -6.9/6
f(m) = 55 - 1.15m = -1.15m + 55
simplify the expression
SCREEN SHOT ATTACHED
Answer:
c
Step-by-step explanation:
Please help me answer this step by step
y + 1/2 = 3/4
Answer:
just translate
Step-by-step explanation:
thats bot much, ñ
Answer:
[tex]y + \frac{1}{2} = \frac{3}{4} \\ y + \frac{2}{2 \times 2} = \frac{3}{4} \\ y + \frac{2}{4} = \frac{3}{4} \\ y = \frac{3}{4} - \frac{2}{4} \\ y = \frac{1}{4} \\ thank \: you[/tex]
Evaluating
100 points worth is it worth it. Also giving out brainliest to the right or closest right answer.
Answer:
C
Step-by-step explanation:
8x2= 16
8x3 = 24
24+16 =40
40/4 = 10
10-8 = 2
what set of ordered pairs in the form of (x,y) does not represent a function of x
Answer:
I believe it's option C
Step-by-step explanation:
A function is a relation that does not contain two pairs with same first component.
option C
{(-1,2),(3,-2),(0,1),(3,5)} is not a function, since there are two pairs with the same first component i.e, 3
hope it helps
mark me brainliest pls
let f (X)=3x - 2 ; g(x)= 5x+1 compute the indicated values
a. (fof) (0)
b. (gog) (-7)
c. (fogof) (2)
Answer:
PHYLUM PLATYHELMINTHES is a great place to work for
Which expressions represent the product of a variable and a coefficient?
Answer:
dfhlfbfuewbbfv
Step-by-step explanation:
Answer: There is not variables?
Step-by-step explanation:
Use the hundredths grid to answer the question.
Describe the decimal multiplication equation and product shown by the model. Include details of where each part of the equation is found on the model.
The question is an illustration of multiplication model.
The multiplication model is: [tex]\mathbf{0.90 \times 0.10 =0.09}[/tex]
From the figure, the shaded portions are:
[tex]\mathbf{Green = \frac{90}{100}}[/tex]
[tex]\mathbf{Orange = \frac{10}{100}}[/tex]
So, the multiplication model represents:
[tex]\mathbf{Model =Green \times Orange}[/tex]
This gives
[tex]\mathbf{Model =\frac{90}{100} \times \frac{10}{100}}[/tex]
Express as decimal
[tex]\mathbf{Model =0.90 \times 0.10}[/tex]
[tex]\mathbf{Model =0.09}[/tex]
Hence, the multiplication model is:
[tex]\mathbf{0.90 \times 0.10 =0.09}[/tex]
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Plz help it’s due tonight!!!
Answer:
B
Step-by-step explanation:
DE is the line that has two ticks through it - the same as FG
the next line goes through the hypotenuse and it is EG for the first triangle and GE for the second
the last line goes through the line with one tick: GD and EF; the points G and D are at the ends of the first part of the congruence statement. the points E and F are also at the ends of their congruence statements
thus the answer is B