Expand to write an equivalent expression: -½ (2x + 4y). If you get stuck, use a diagram to organize your work.

Answers

Answer 1

Answer:

ANSWER IS 4 BY 2 IS 342

Step-by-step explanation:

Answer 2

Answer:

- x - 2y

Step-by-step explanation:

Given

- [tex]\frac{1}{2}[/tex] (2x + 4y) ← multiply each term in the parenthesis by - [tex]\frac{1}{2}[/tex]

= - [tex]\frac{1}{2}[/tex] (2x) - [tex]\frac{1}{2}[/tex] (4y)

= - x - 2y


Related Questions

-2x(6x^4 -7x^2 +x-5 in standard form pls

Answers

Answer:

-12x^5 + 14x^3 -2x^2 + 10x

Step-by-step explanation:

-2x(6x^4 -7x^2 +x-5) =

-12x^5 + 14x^3 -2x^2 + 10x

PLease help me answer this.

Answers

Answer:

1093.96

Step-by-step explanation:

900(1+.05)⁴=1093.955625

The total cost of an order of gift baskets includes the cost of each gift basket plus a one time delivery fee. The cost of each gift basket is the same regardless of how many the customer orders. One company bought 40 gift baskets for their employees for a total of $715. Another company bought 400 gift baskets for $5,935. Based on the information given, what is the cost per gift basket?

Answers

Answer:

x = cost of each gift basket = $14.5

y = one time delivery fee = $135

Step-by-step explanation:

Let

x = cost of each gift basket

y = one time delivery fee

40x + y = 715 (1)

400x + y = 5935 (2)

Subtract (1) from (2)

400x - 40x = 5935 - 715

360x = 5220

x = 5220/360

x = 14.5

Substitute x = 14.5 into (1)

40x + y = 715 (1)

40(14.5) + y = 715

580 + y = 715

y = 715 - 580

y = 135

x = cost of each gift basket = $14.5

y = one time delivery fee = $135

Solve.
-d/11 - 4 < 1


The solution to the inequality is ----.

Answers

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable.

inequality form:

d>-55

interval notation:

(-55, ∞)

Answer:

−11d−4<1

2

 

Suma 44 a ambos lados.

-\frac{d}{11}<1+4−11d<1+4

3

 

Simplifica  1+41+4  a  55.

-\frac{d}{11}<5−11d<5

4

 

Multiplica ambos lados por 1111.

-d<5\times 11−d<5×11

5

 

Simplifica  5\times 115×11  a  5555.

-d<55−d<55

6

 

Multiplica ambos lados por -1−1.

d>-55d>−55

Step-by-step explanation:

d>55

A huge bag of garlic bulbs weighs 294 lbs divided by 1/6th of its weight. How much does the bag of garlic weigh?

Answers

Answer:

42 lbs

Step-by-step explanation:

1/6th of 42 is 7

now since the bulb weighs 294, we didvide by 7

so 294/ 7 is 42

Yea 42lbs is the right answer

Aubrey can spend at most $100 more on her credit card. She bought a pair of shorts for $20, and sees a sales t-shirt at $15 per shirt. How many t-shirts can Aubrey buy with her $100 budget? Which of the following equations fits this situation?

Answers

Answer:

I believe this question is asking for which of the following equations fits the situation, however since there is no equations given I solved it below.

The answer is 5.3 t-shirts

Step-by-step explanation:

$100 - $20 = $80

Audrey has $80 to spend on t-shirts.

80 / 15 = 5.3

Audrey can buy 5.3 t-shirts

An alarm bell will ring when the pressurized gas in a cylinder reaches an internal pressure that is 215% of the maximum allowable pressure. If the maximum allowable pressure
is 220 pounds per square inch, at what pressure, in pounds per square inch, will the alarm bell ring?

Answers

Answer:

The alarm bell will ring at 473 psi.

Step-by-step explanation:

To answer this, find 215% of 220 pounds per square inch:

Convert the percentage 215% to its decimal fraction equivalent, 2.15, and then multiply 220 pounds per square inch by it:

2.15(220 psi) = 473 psi

The alarm bell will ring at 473 psi.

You randomly choose one of the tiles. Without replacing the first tile, you randomly choose a second tile. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth.The probability of choosing a red tile and then a vowel is

Answers

I can’t see the image

Al, Tom and Joe share €3000. The ratio of the amount Al gets to the amount Tom gets is in the ratio 5 : 4. Joe gets 1.5 times the amount Tom gets. Work out the amount of money that Tom gets

Answers

Answer: €800

Step-by-step explanation:

Since Joe gets 1.5 times the amount Tom gets and Tom is given a ratio with value 4, then Joe gets (4 × 1.5) = 6. Therefore, the ratio of Al, Tom and Joe will be 5:4:6.

Therefore, the amount that Tom gets will be:

= 4/(5+4+6) × €3000

= 4/15 × €3000

= €800

Therefore, Tom gets €800

Are the following polygons similar ? Explain

Answers

Answer:

Two polygons are similar if their corresponding angles are congruent and the corresponding sides have a constant ratio (in other words, if they are proportional). Typically, problems with similar polygons ask for missing sides.

Step-by-step explanation:

Jimmy threw a baseball in the air from the roof of his house. The path followed by the baseball can be modeled by the function f ( t ) = − 8 t 2 + 48 t + 40 , f ( t ) = - 8 t 2 + 48 t + 40 , where t represents the time in seconds after the ball was thrown and f ( t ) f ( t ) represents its height, in feet, from the ground. Part A. How high is the roof from the ground? How many seconds did it take for the ball to hit the ground after it was thrown off the roof? Part B. Jimmy wanted to throw the ball at a maximum height of 120 feet. Did Jimmy's baseball reach this height after it was thrown? Explain your answer.

Answers

Answer:

Step-by-step explanation:

The first part of A is easy. Look at the quadratic function, and the constant, the very last number with no t stuck to it represents the height from which the object in question was originally launched. Our constant is 40, so the height of the roof from which the baseball was thrown is 40 feet. Part 2 of A is not quite as simple because it requires factoring using the quadratic formula.Before we do that, let's make our numbers a bit more manageable, shall we? Let's factor out a -8 to get

[tex]f(t) = -(t^2-6t-5)[/tex] and a = 1, b = -6, c = -5.

Filling in the quadratic formula now looks like this:

[tex]t=\frac{6+-\sqrt{6^2-4(1)(-5)} }{2(1)}[/tex] and

[tex]t=\frac{6+-\sqrt{36+40} }{2}[/tex] and

[tex]t=\frac{6+-\sqrt{56} }{2}[/tex] so the 2 solutions are

[tex]t=\frac{6+\sqrt{56} }{2}=6.74sec[/tex] and

[tex]t=\frac{6-\sqrt{56} }{2}=-.742sec[/tex] and since we know time can NEVER be negative, the time it takes for the baseball to hit the ground from a height of 40 feet is 6.74 seconds. Onto part B.

In order to determine exactly how high the baseball did go, we have to find the vertex of the function. We do this by completing the square and getting the function into vertex, or work, form. Begin by setting the quadratic equal to 0, moving over the constant, and then factoring out the leading coefficient. The rule for completing the square are kinda picky in that you have to have a 1 as the leading coefficient, and righ now ours is a -8. So following the rules I stated above:

[tex]-8(t^2-6t)=-40[/tex] Next is the take half the linear term, square it, and then add it to both sides. Our linear term is a -6. Half of -6 is -3, and -3 squared is 9, so we add 9 into the parenthesis first:

[tex]-8(t^2-6t+9)=-40+??[/tex]

Because this is an equation, we can't add 9 to one side without adding the equivalent to the other side. But, we cannot forget about that -8 sitting out front there, refusing to be ignored. We didn't just add in a 9, we actually added in a -8 times 9 which is -72. That's what goes on the right side in place of the ??.

[tex]-8(t^2-6t+9)=-40-72[/tex]

The reason we complete the square is found on the left side of the equals sign. We have, in the process of completing the square, formed a perfect square binomial that will serve as the h in our vertex (h, k) where h is the number of seconds it takes for the baseball to reach its max height of k, whatever k is. That's what we have to find out. Putting the left side into its simplified perfect square binomial and adding the numbers on the right gives us:

[tex]-8(t-3)^2=-112[/tex]

For the last step, add over the -112 and set it back equal to f(t):

[tex]-8(t-3)^2+112=f(t)[/tex] From that we determine that the vertex is (3, 112). The max height of this baseball was 112 feet...so no, it did not make it up to the height of 120 feet that Jimmy wanted for the baseball.

What is the completely factored form of this polynomial? 7x4 + 14x3 − 168x2 A. 7x3(x + 4)(x − 6) B. 7x2(x + 4)(x − 6) C. 7x2(x − 4)(x + 6) D. 7x3(x − 4)(x + 6)

Answers

Answer:

7x^2*(x-4)*(x+6)

Step-by-step explanation:

7x^4 + 14x^3 - 168x^2

common factor 7x^2

7x^2*( x^2+2x-24)

now we factor ( x^2+2x-24)

(x-4)*(x+6)

Solution

7x^2*(x-4(*(x+6)

The factorized form 7x²(x-4)(x+6) of the polynomial 7x⁴ + 14x³ - 168x².

What is polynomial ?

The polynomial is the defined as mathematical statements that have a minimum of two terms containing variables or numbers.

What are Arithmetic operations?

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

The operator that perform arithmetic operation are called arithmetic operators .

Operators which let do basic mathematical calculation

+ Addition operation : Adds values on either side of the operator.

For example 4 + 2 = 6

- Subtraction operation : Subtracts right hand operand from left hand operand.

for example 4 -2 = 2

* Multiplication operation : Multiplies values on either side of the operator

For example 4*2 = 8

Given polynomial as:

7x⁴ + 14x³ - 168x²

There is a common factor 7x²

7x²( x² + 2x - 24)

To determine the factor of ( x² + 2x - 24)

⇒ 7x²( x² + 2x - 24)

⇒ 7x²( x² + 6x - 4x -24)

⇒ 7x²[x(x+6) - 4(x+6)]

⇒ 7x²(x-4)(x+6)

Hence, the factorized form 7x²(x-4)(x+6) of the polynomial 7x⁴ + 14x³ - 168x².

Learn more about polynomial here:

brainly.com/question/13947055

#SPJ2

How do I solve this?​

Answers

What you do is you use the x and y and turn them into coordinate points and put them on the graph. The points would be…

(-2, 1)
(0,-1)
(2, -3)

I hope this helped!

What is $14.81+$16.19-8cents? plz hurry​

Answers

Answer:

$30.92

Step-by-step explanation:

Answer:

$23 I hope this helps :)

Step-by-step explanation:


A television is advertised for K2000 cash or on terms of 10% deposit and K80 per month for 3
years.

a) How much more does the television cost when bought on a term payment plan rather than with
cash?

b) What is the percentage flat rate of interest charged p.a.?

Answers

Answer:

a. K3080

Step-by-step explanation:

K2000×10/100=K200

K80×36months=2880

K2880+K200=K3080

Which expression has a value closest to 1 ? (Use 3.14 as the value of pie.)

Answers

Answer:

The square root of 37 minus the square root of 26

[tex]\sqrt{37} -\sqrt{26}[/tex]

Step-by-step explanation:

a) 7 pi / square root 10 = 7(3.14)/3.162277660 = 6.95

b) square root 75 - square root 74 = 8.660254038-8.602325267=0.058

c) square root 37 - square root 26 = 6.082762530-5.099019514=0.98

s) 3 square root 5 - square root 20 / square root 2 =

   3(2.236067978) - 4.472135955/1.414213562=6.708203934-3.162277661=

   3.546

I hope you guys can help me with this question :)

Answers

Answer : 11 feet
Explanation: This means the radius of the circular pattern being formed is 11 feet. So the sprinkler can spread the water 11 feet away from it

someone please help me out with these questions . I don’t get them at all.

Answers

Answer:

a)similar; b)similar; c)similar; d)NOT similar

Step-by-step explanation:

>In general if

all corresponding angels are ≅, and

all corresponding sides are in proportion

then the Δs are similar

>we have 3 similarity theorems AA, SSS, and SAS

a)

we can use that sum of angles in a triangle is 180 to find the missing angles

180-96-32 = 52

so in the smaller triangle the angles are 96°-52°-32°

in the larger triangle the angles given are 52°-32°

Since there are 2 corresponding angles congruent, AA theorem of similarity says that the 2 triangles are similar. The transformations were that the big triangle was shrunk and rotated

b)

here we are given a pair of congruent angles and we need to check if the sides are in proportion, is 14/44.8 equal to 20/64?

14/44.8 =.3125 is equal to 20/64=.3125

since we have two corresponding sides in proportion and the angles in between them congruent the SAS theorem says that the 2 triangles are similar. The transformation was that the small triangle was dilated.

c)

because we are given the 2 angles are congruent we can conclude that the lines NH and SL are parallel. NH║SL let us conclude that ∡H and ∡ L are congruent because 2 parallel lines cut by a transversal (ML in our case) form congruent angles. So ΔMNH  is similar to ΔMSL because of AA theorem of similarity (one pair of A was given congruent, one other pair of A we concluded was congruent)

d)

here we have to check if all the sides are in proportion to see if SSS theorem of similarity applies here

18/90 = .2

44/202.4≈.22

58.5/211.2≈.28

.2≠ .22 ≠ .28

since the sides are not in proportion the 2 triangles are NOT similar.

use graph to answer the question

Answers

Answer: [tex]36.86^{\circ}[/tex]

Step-by-step explanation:

Given

Coordinates  of Point A is [tex](-3,-4)[/tex] i.e. Point A is 3 units to the left and 4 units below x-axis

From figure, we can write

[tex]\Rightarrow \tan \theta =\dfrac{3}{4}\\\\\Rightarrow \theta=\tan^{-1}\left(\dfrac{3}{4}\right)\\\\\Rightarrow \theta=36.86^{\circ}[/tex]

It’s another one thanks for the help

Answers

Answer:

Step-by-step explanation:

volume of a cylinder=πr^2*h

226.2=3.14*8*r^2

226.2=25.12*r^2

226.2/25.12=r^2

9=r^2

[tex]\sqrt{9[/tex]=r

3=r

radius =3 feet

Question 1 of 10
Classify the following triangle. Check all that apply.
60
60
60
O A. Isosceles
B. Equilateral
O C. Scalene
O D. Acute
E. Right

Answers

Answer:

A, B, & D

Step-by-step explanation:

A. isosceles - 2 sides equal (actually) all sides are equal

B. equilateral - all sides equal and all angles are equal too

D acute - all angles are less than 90 degrees

These triangles are congruent by the triangle congruence postulate [?]

Answers

Given:

A figure of two congruent triangles.

To find:

The triangle congruence postulate by which the given triangles are congruent.

Solution:

First label the vertices as shown below.

In triangle ABC and triangle CDA,

[tex]AB\cong CD[/tex]                   (Given)

[tex]\angle BAC\cong \angle DCA[/tex]                   (Given)

[tex]AC\cong AC[/tex]                  (Common side)

The corresponding two sides and their included angle are congruent in both triangles. So, triangles are congruent by SAS congruence postulate.

[tex]\Delta ABC\cong \Delta CDA[/tex]            [SAS congruence postulate]

Therefore, the correct option is B.

helpppppp meeeee!!!!!
if u answer all 5 questions i´ll give you Brainliest!!!

Answers

Answer:

You can use M a t h w a y. and you will get all the correct answers

Step-by-step explanation:

Hope this helps :)

Answer:

question 21:  29

question 16:  -1/729

question 15:  1/144

question 14:  1/64

question d=rt, solving for t:  answer is Letter G, t=d/r

Step-by-step explanation:

Hope this helps

You are installing a ramp for your house because grandma is coming to live with you! If the measure of angle B is 90 degrees and the measure of angle C is 17 degrees, what is the measure of angle A?

Answers

Answer:

73

Step-by-step explanation:

I Gotchu!

180=90+17+x

90=17+x

73=x

73!

What is the value of x? (giving brainliest and thanks to all!)

Answers

Answer:

x = 12

Step-by-step explanation:

Given a line parallel to a side of the triangle and it intersects the other 2 sides then it divides those sides proportionally, that is

[tex]\frac{x}{24}[/tex] = [tex]\frac{5}{10}[/tex] ( cross- multiply )

10x = 120 ( divide both sides by 10 )

x = 12

Please help me I’m stuck on this urgent

Answers

Answer:

The answer for "b" is... B.

or 53˚

Step-by-step explanation:

Subtract 180 with 127

which is 53˚

A
5
4
2
-6
-5
-4
-3 -2
-1
2
3
4
5
6
-2
-6
The reflection of points across the y-axis is point
The reflection of point Q across the x-axis and the y-axis is point
whose
coordinates are

Answers

Answer:

To be honest I don't understand this question

How many solutions are there to this equation?

3(3x-1)=6x-3
A.no solutions
B.one solution
C.two solutions
D.infinite solutions

Answers

Answer:

One Solution

Step-by-step explanation:

3(3x-1)=6x-3

9x-3 = 6x-3

9x-6x= -3+3

3x=0

3x/3 = 0/3

x=0

The solutions are there to the equation [tex]\rm 3(3x-1)=6x-3[/tex] is one solution.

What is the equation?

An equation can be defined as a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.

The given equation is;

[tex]\rm 3(3x-1)=6x-3[/tex]

The solutions are there to this equation is determined in the following steps given below.

[tex]\rm 3(3x-1)=6x-3\\\\9x-3=6x-3\\\\9x-6x=-3+3\\\\3x=0\\\\x=0[/tex]

Hence, the solutions are there to the equation [tex]\rm 3(3x-1)=6x-3[/tex] is one solution.

Learn more about equation here;

https://brainly.com/question/21511618

#SPJ2

will mark brainliest

Answers

Answer:for points vgunvh

Step-by-step explanation:

PLEASE HELP! Solve the system of equations by graphing on your own paper. What is true about the system?

A. There is exactly one solution to the system of equations.

B. There are infinitely many solutions to the system of equations,

C. There are exactly two solutions to the system of equations.

D. There are no solutions to the system of equations.

Answers

Answer:

B. There are infinitely many solutions to the system of equations,

Step-by-step explanation:

they are the same line look at image

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