Roots thru Rational Numbers Summative


HELPPPPP
question: 18

Answer:

7

Step-by-step explanation:

To find the answer you have to divide 5 by 2/3, if you use a calculator you'll get the answer 7.5, which isn't a whole so simply round it down to 7; as if you rounded it up to 8 you'd have way too many plates of nachos to actually be able to make that amount with how much cheese you have lol, hope this helped !!!

4 units to the right + 20 units up

Step-by-step explanation:

can I get brainliest points

In the ordered pair (4, 20), the value 4 represents the input to a function.

Given data:

In the ordered pair (4, 20), the value 4 represents the input to a function. In a function, each input value is associated with a unique output value. The input value is also referred to as the "independent variable" or the "domain" of the function. It is the value for which we want to determine the corresponding output or "dependent variable."

In this case, the ordered pair (4, 20) indicates that when the input value is 4, the output value is 20. This means that there exists a function that, when given the input 4, produces the output 20. The input value, 4, is the specific value for which we are interested in understanding the behavior or relationship described by the function. The output value, 20, is the result of applying the function to the input value.

Hence, the value 4 in the ordered pair (4, 20) represents the input or independent variable of the function.

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Answer:

the last option (-5k+4)-8 + 6k

Step-by-step explanation:

-8(-5k+4)+6k

to simplify, begin by distributing the -8 so that parentheses are removed:

=(-8)(-5k) + (-8)(4) + 6k

=40k - 32 + 6k

combine 'like terms':

46k-32

the only answer which simplifies to 46k-32 is the last option:

the only difference between the original problem and the last option is that the -8 value is behind the parentheses instead of in front of it; it simplifies to be 46k-32

the fiest answer is x=6 for the second one the answer is x=4

Step-by-step explanation:

x+15/5x+1 =15/35 then cross multiply

1st one

Answer:

x = 6 , x = 4

Step-by-step explanation:

A line parallel to a side of a triangle and intersecting the other 2 sides then divides those sides proportionally, that is

[tex]\frac{x}{18}[/tex] = [tex]\frac{28-21}{21}[/tex] = [tex]\frac{7}{21}[/tex] = [tex]\frac{1}{3}[/tex] ( cross- multiply )

3x = 18 ( divide both sides by 3 )

x = 6

(14)

[tex]\frac{x+5}{15}[/tex] = [tex]\frac{5x+1}{35}[/tex] ( cross- multiply )

15(5x + 1) = 35(x + 5) ← distribute parenthesis on both sides

75x + 15 = 35x + 175 ( subtract 35x from both sides )

40x + 15 = 175 ( subtract 15 from both sides )

40x = 160 ( divide both sides by 40 )

x = 4

Check the picture below.

we know that the arcST is 30°, meaning the inscribed angle intercepting it will be half that or 15°.

in the triangle RWT, two sides of it are RT and RW, both of which are radius segments and thus equal, meaning that triangle RWT is an isosceles, and in an isosceles the twin sides also make twin angles, meaning that ∡RTW is a twin of the inscribed angle ∡RWT.

20 Feet long. Based on the given conditions, formulate: square root of 20 to the power of 2 +16 to the power of 2

Evaluate the equation/expression: 20

get the result: 20

Answer: 20

Answer:

23 units

Step-by-step explanation:

root 149

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

A total of 15 questions.

3 divided by 15 = .20 or 20%

Answer:I'm sorry I dont know it has to do with the inverse of tangent

Step-by-step explanation:

Answer:

x+y=6

Step-by-step explanation:

is it multiple choice?

The system of inequalities models this situation would be;

x + y ≤ 9

x ≥ 4

y ≥ 2

Given that;

Jenifer is buying popcorn and sodas with her friends at the movies.

They can carry at most 9 items.

They want at least 4 sodas and at least 2 bags of popcorn.

Let us assume that;

x represent the number of sodas.

And y represents the bags of popcorn.

Hence for the statements,

They can carry at most 9 items.

x + y ≤ 9

They want at least 4 sodas and at least 2 bags of popcorn.

x ≥ 4

y ≥ 2

Therefore, The system of inequalities would be;

x + y ≤ 9

x ≥ 4

y ≥ 2

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Speed = Distance /  time

Speed = 540 km / 6 hours

Speed = 90 km/hr.

Answer:

3.75$

Step-by-step explanation:

15$ - 75% = 3.75$

The sale price is 3.75$.

Answer:

Step-by-step explanation:

a = -3 ; b = -6  ; c = -11

D = b² - 4ac

 = (-6)² - 4*(-3)*(-11)

 = 36 - 132

 = - 96

[tex]\sqrt{D}=\sqrt{-96}=\sqrt{96i^{2}} =9.8i[/tex]

[tex]x =\dfrac{-b+\sqrt{D}}{2a} \ ; \ x =\dfrac{-6-\sqrt{D}}{2a}\\\\\\x=\dfrac{6+9.8i}{2*(-3)} \ ; \ x=\dfrac{6-9.8i}{2*(-3)}\\\\\\x=\dfrac{6}{-6}+\dfrac{9.8}{-6}i \ ; \ x=\dfrac{6}{-6}-\dfrac{9.8}{-6}i\\\\\\x=-1-\dfrac{4.9}{3}i \; \ x=-1+\dfrac{4.9}{3}i[/tex]

Answer:

Airplane LANDING gear , all four tires on a car being the SAME size , even little things like the feet of a table to make sure everything is evened out.

In other words-

Congurency can be literally anything from earings to shoe size. The main reason for congruent things in the real world nowadays is to mass produce steel works or building sites.

Answer:

we make the denominator equal to zero then we get the domian

Answer:

g(x) = -4g(x) = -x+4

= g(5) = -4(5) = -(5)+4

= g(5) = -20 = -1

Answer:

These answers are not very easy

The average rate of change between from 9:00 to 9:27 is 2.15°F increase per minute

Linear equation

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the rate of change (slope) and b is the y intercept.

Let y represent the temperature at x time.

By 9:00 a.m. the same day, the temperature was 54°F. By 9:27 a.m., the temperature was -4°F

m = (-4 - 54)/27 minutes = -2.15

The average rate of change between from 9:00 to 9:27 is 2.15°F decrease per minute

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Answer:

(A) f(x) = 2 * [tex]4^{t}[/tex]

Step-by-step explanation:

[] We can find our answer by plugging the x values into the functions as t and solving.

-. Using this method, starting with the A function, we find that the first function models the data and we do not need to test the others. I still have shown the work for the others as it is good to check your work.

[✓] f(x) = 2 * [tex]4^{t}[/tex]

(1, 8) }{}{}{ f(x) = 2 * [tex]4^{1}[/tex] = 2 * 4 = 8

(2, 32) }{}{}{ f(x) = 2 * [tex]4^{2}[/tex] = 2 * 16 = 32

(3, 128) }{}{}{ f(x) = 2 * [tex]4^{3}[/tex] = 2 * 64 = 128

-> This pattern continues

[✗] f(x) =  [tex]4^{t}[/tex]

(1, 8) }{}{}{ f(x) = [tex]4^{1}[/tex]  = 4 ≠ 8

-> This function does not model the data as it does not fulfil the first point

[✗]  f(x) = 4 * [tex]2^{t}[/tex]

(1, 8) }{}{}{ f(x) =  4 * [tex]2^{1}[/tex] = 4 * 2 = 8

(2, 32) }{}{}{ f(x) =  4 * [tex]2^{2}[/tex] = 4 * 4 = 16 ≠ 32

-> This function only models (1, 8) but does not fully model the data

[✗] f(x) =  [tex]8^{t}[/tex]

(1, 8) }{}{}{ f(x) =  [tex]8^{1}[/tex] = 8

(2, 32) }{}{}{ f(x) =    [tex]8^{2}[/tex] = 64 ≠ 32

-> This function only models (1, 8) but does not fully model the data

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

Part A:

- angle ACB= 60° (ABC equilateral triangle.)

- Angle ECD=EDC= (180°-32°)/2= 148/2= 74° (sum of angles in a triangle is equal to 180, and triangle ECD is isosceles since it's given that CE=DE.

- x= 180°-(60°+74°)

   = 180°-134°

   = 46°

x= 46°

Part B:

120°

Answer:

The set of all the values which may be input into a function. That is, the set of all the values the independent variable may assume. Graphically, the domain is the set of all the x-coordinates.

Answer: 14 percent

Step-by-step explanation:

Not really needed.

Answer:

money decrease linearly with increase in time

3x-2+4=8

4x+5÷5=5

There's more but these one came to my mind lol

hope this helps

Answer:

y= -2x + 3

Step-by-step explanation:

Answer:

here is an answer x = a*y+3

Lets check how?

Factors of 3=1,3

Max value possible=1+3=4

Minimum value=-1-3=-4

So Verified

Answer: x2 – 10x + 25 = (x – 5)(x – 5)

                      = (x – 5)2