Which expression is equivalent to 7/8+ 3/8x-1/4y+3/4y-1/2?

Answer:

The first choice:

x: -5, -4, -3, -2, -1

y: -5, -3,  -1,   1,  3

Step-by-step explanation:

If we apply the equation here...

y = 2x + 5

(Let's use -1 for example)

y = 2(-1) + 5 --> y = -2+5, which gives us 3

On the table, it says that the y is 3, so it proves that it is correct

If you apply the equation for all of the x's, it'll give you the y's for the first choice. This doesn't apply to the rest of the tables, so the first table is the correct choice

The values are satisfied by

x      y

-5    -5

-4    -3

-3    -1

-2     1

-1      3

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Given:

Y= 2X +5

let us put the value for X

X= 0

Y = 5

and, X=1

Y = 2 + 5 = 7

and, X= 2

Y= 4 + 5 = 9

and, X=3

Y = 6 + 5 = 11

and, X= 5

Y = 10 + 5= 15

and, X= -1

Y= -2 + 5 = 3

Hence, these values are satisfied by

x      y

-5    -5

-4    -3

-3    -1

-2     1

-1      3

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Answer:

y = -3x + 11

Step-by-step explanation:

To find the equation of the line we would plug in the given info into the point slope equation:

[tex]y-y_{1} =m(x - x_{1} )[/tex]

In this case (x1, y1) is (4, -1) and m is -3:

y - (-1) = -3(x - 4)

We can simplify as follows:

y + 1 = -3x + 12

y = -3x + 11

Answer:

ALL of the following expressions are NOT equivalent to 64^5t^2+3t

Step-By-Step Explanation:

Khan Academy

To determine whether each expression is equivalent to [tex]64^5t^2 + 3t[/tex], we will simplify each expression by evaluating the calculations.

Expression 1:   [tex]64^5t^2 + 3t[/tex]

Expression 2:  [tex](4^3)^5t^2 + 3t = 4^(3*5)t^2 + 3t = 4^15t^2 + 3t[/tex]  

Expression  3:  [tex](8^2)^5t^2 + 3t = 8^(2*5)t^2 + 3t = 8^10t^2 + 3t[/tex]  

Expression 4:   [tex](2^6)^5t^2 + 3t = 2^(6*5)t^2 + 3t = 2^30t^2 + 3t[/tex]  

Expression 5:   [tex](8^8)^3t^2 + 3t = 8^(8*3)t^2 + 3t = 8^24t^2 + 3t[/tex]  

Expression 6:   [tex]64^5t^2 + t + 2t = 64^5t^2 + 3t[/tex]

After evaluating each expression, we can see that all the expressions are equivalent to [tex]64^5t^2 + 3t[/tex]. The calculations show that regardless of the specific values used, the expressions simplify to the same result. Therefore, it can be concluded that all six expressions are equivalent to [tex]64^5t^2 + 3t.[/tex]

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Answer:

line 3

Step-by-step explanation:

It is very close to each if the points with no outliers.

Answer:

7x³(7x² - 9)

Step-by-step explanation:

Hope this helps!

Answer:

[tex]7x^3(7x^2-9 )[/tex]

Step-by-step explanation:

To factor, you have to find the GCF of 49 and 63 and the GCF of [tex]x^{5}[/tex] and [tex]x^3[/tex]

Factor 49: 1,7, and 49

Factor 63: 1, 3, 7, 9, 21, 63

Factor [tex]x^{5}[/tex]: [tex]x*x*x*x*x[/tex]

Factor [tex]x^3[/tex]: [tex]x*x*x[/tex]

So the GCF of 49 and 63 is 7

The GCF of [tex]x^{5}[/tex] and [tex]x^{3}[/tex] is [tex]x^3[/tex]

We multiply 7 by [tex]x^{3}[/tex] to get [tex]7x^3[/tex]

So now we start to factor out the GCF of [tex]49x^5-63x^3[/tex]

[tex]7x^3(\frac{49x^5}{7x^3}+ \frac{63x^3}{7x^3} )[/tex]

[tex]\frac{49}{7} =7\\x^5-x^3=x^2[/tex]

[tex]\frac{63}{7} =9\\x^3-x^3=x^0[/tex] because [tex]x^{0}[/tex] can't be written as an exponent we don't write [tex]9x^0[/tex]

When we factor we get [tex]7x^3(7x^2-9 )[/tex]

Answer:

y=1/3x + 2

Step-by-step explanation:

the y intercept is 2 since that's where the line crosses and the x intercept is at 4

Answer: A function is concave up (or upwards) where the derivative is increasing. This is equivalent to the derivative of, which is, being positive. Similarly, is concave down (or downwards) where the derivative is decreasing (or equivalently, is negative).

Step-by-step explanation: if you can give me brainly please hope this helps

Hi,

2x - 1 > 3

2x -1 + 1 > 3 + 1

2x > 4

2x / 2 > 4 / 2

x > 2

You have to highlight all the part after 2, and the number 2 should NOT be included, only the part of the line after 2 should be highlighted (until 11 )

Answer:  #1 is " a not equals sign. " #2 is " inequality ".

Step-by-step explanation: i took the quiz and got it wrong but looked at my answers so here ya go.

Answer:

1# not an equals sign 2# inequality

Step-by-step explanation:

Answer:

maybe there's a typo, that dot usually represents the multiplication, and I got 5.52

Answers:

Question 4

Since line KL shows the amount of unwanted material from line NM, subtract the two and divide the result by 2 for the bottom measurement to each triangle

36 - 20 = 16

16/2 = 8

So now since we know our a and our c, we can implement the Pythagorean theorem of a^2 + b^2 = c^2 to find b, or the height of the triangle

8^2 + b^2 = 17^2

64 + b^2 = 289

b^2 = 225

b = 15

Therefore x = 15ft

Question 5

An outline for the word problem can look like this:

                      / | \

                   /    |    \

                /       |       \

             /          |          \   450m

          /             |             \

       /    360m  |                \

    /                   |                   \

 /__________|__________\

                                  x

So to start we already know 2 of the 3 angles for the Pythagorean theorem so now we plug them in

360^2 + a^2 = 450^2

129600 + a^2 = 202500

a^2 = 72900

a = 270

So this means that the wires need to be grounded 270m away from the pole

Answer:

The correct option is B. 3¹⁰

Step-by-step explanation:

[tex] \\ ( {3}^{2} )^{3} \: •\: {3}^{4} [/tex]

[tex] \\ \mapsto {3}^{2 \times 3} \: • \: {3}^{4} [/tex]

[tex] \\ \mapsto {3}^{6} \: • \: {3}^{4} [/tex]

[tex] \\ \mapsto {3}^{6 + 4} [/tex]

[tex] \\ \mapsto {3}^{10} [/tex]

Answer:

66 robots

Step-by-step explanation:

So they are telling you to DIVIDE the amount of dollars earned to the price of the toy robots.

> 792 / 12 = ?

> 79 - 72 = 7 ( sis 12s goes into 79 )

> 72 - 72 = 0 ( six 12s goes into 72 evenly )

> 792 / 12 = 66

So the store has selled 66 toy robots & earned a profit of $792.

Answer:

See below:

Step-by-step explanation:

(Apologies for the other answer, the moderation team is looking at it.)

So, we can solve this problem by taking 2 steps, Solving and Unit Value.

We'll start off with finding the unit value for 1 cm and how many Newtons we get per one cm.

We can solve for that by dividing both sides by 20 to find the Unit Value.

[tex]\frac{20}{20}=1\\\frac{28}{20}=1.4\\[/tex]

Upon solving, we know that 1.4 is for one unit price. We can then figure out the other blanks by solving it, which we will be doing next.

Solving

To find the first value, we know that the ratio for [tex]I:O[/tex] with I being Input and O being output is 1.4. We know that because in the unit section, we figured the rate out.

We can now use that to find the Newtons, to do that, we must multiply 55 by 1.4.

[tex]55*1.4=77[/tex]

We have found out our first blank which is 77.

We can solve for 140 by dividing it by 1.4 because to get 1 Newton we divide by 1.4 on this table and to get the opposite we have to do the opposite of multiplying; dividing.

We divide 140 by 1.4 and we get 10.

[tex]\frac{140}{1.4}[/tex] = 100

To solve for one, we did that in the beginning, and that would be 1.4

Cheers!

Answer:

1. Percent change - 14.5455% ≈ 15% | decrease

2. Percent change - 30.2326% ≈ 30% | increase

3.  New price - $83.74

4. New price - $436.50

Step-by-step explanation:

To find an increase or decrease in price, if you have the percent provided, convert the percent into a decimal, then multiply the percent by the price, if it's an increase, add the price by the sum, if it's a decrease, subtract the price by the sum.

Answer:

La contestacion debe ser la C, ya que estas buscando el total de altura que ha descendido en 40 segundos.

Answer:

Step-by-step explanation:

Volume of the cube is 27 cm^3

Since [tex]density = \dfrac{Mass}{Volume}[/tex]

density  = [tex]\dfrac{428 g}{27 cm^3} = 15.85 g/cm^3 > 1.7g/cm^3[/tex]

this will not float on the surface of the liquid.

Convert into kg/m^3

[tex]15.85 g/cm^3 = 15850 kg/m^3[/tex]

1,3,5,7 = 126°

2,4,6,8 = 54°

Here your go m'dear

Given, ∠3 = 126°.

∠3 =∠1 = 126° (vertically opp. angles)

∠3 =∠5 = 126° (alternate interior angles)

∠3 =∠7 = 126° (corresponding angles)

Now, ∠2 = 180° - 126° = 54° (linear pair/supplementary angles)

∠2 = ∠4 = 54° (vertically opp. angles)

∠2 = ∠8 = 54° (alternate interior angles)

∠8 = ∠6 = 54° (vertically opp. angles)

_________

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

Answer:

it moves to the right 2 places (units)

Step-by-step explanation:

ex

500.*100

50000.

Answer:

y = −3/1 x−2

​

Step-by-step explanation:

Answer:

x = ± 5

Step-by-step explanation:

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take the square root of both sides )

x = ± [tex]\sqrt{25}[/tex] = ± 5

solutions are x = - 5 , x = 5

Answer:

x= 4

(not sure about a, sorry friend)

Step-by-step explanation:

Since the shape is congruent with the other sides it's the same.

Answer:

y=-7

Step-by-step explanation:

This is an expression, not an equation.  y is -7 for any value of x, so f drops out of the equation and it beomes an expression.

Answer:

Step-by-step explanation:

Angle DBC and angle BDA form a pair of vertical angles, not a pair of alternate interior angles, which are congruent.

Triangles ABD and CDB are congruent by the SAS postulate instead of the SSS postulate.

Triangles ABD and BCD are congruent by the AAS postulate instead of the SSS postulate.

Angle DBC and angle BDA form a pair of corresponding angles, not a pair of alternate interior angles, which are congruent.

Answer:

(a) P = 32.5 feet

(b) P = 108-2x feet

Step-by-step explanation:

Note: Perimeter is the total distance around the border of a shape.

(a)

P = 14' + 27'' + 14' +27'' ; First we have to covert the 27'' (27 inches to feet)

[tex]27*\frac{1}{12} = \frac{27}{12} =\frac{9}{4}[/tex] = 2.25feet

P = 14'+2.25'+14'+2.25'

P = 32.5' = 32.5 feet

(b)

P = 15'+29'+(15'-x')+3'+7'+3'+(7'-x')+29' ; where x is the overlapping distance of the 2 rectangles of Foundation B.

P = 108' -2x'

P = 108-2x feet

Note: there is not enough information to determine the vaule of x from the problem.

Answer:

y=4/5+3 and 3/5

Step-by-step explanation:

the answer is 1.32503237E+22

Step-by-step explanation:

I hope this help

Answer:

wich problem i see multiple ?

Answer:

x = -7 or -3

Step-by-step explanation: