-6x+4x=-2



can anyone help I'm really lost on how to do this​

Answer:

The probability of them being in the right order would be a fraction of 1/7

Answer:

A- Strong Positive

Step-by-step explanation:

hopes this helps

Answer:

strong positive

Step-by-step explanation:

Answer:

We know that Jennifer ran 10k last weekend.

Now, we have the function:

t = f(k) = 7*k

(notice that this is a linear function)

First, let's define what is the range.

The range is the possible values that the outcome, t, can take.

To see the range, we first must see the domain (the possible values of of the input)

In this case, we know that the minimum value of k is 0 (the time to run 0 kilometers)

t(0) = 7*0 = 0

Here we found the minimum of the range.

Now, the maximum value in the domain is 10 (because she ran 10km, we can not have a value of k larger than 10)

The time is:

t(10) = 7*10 = 70

This will be the maximum of the range.

Then the range can be written as:

R = [0, 70]

Answer: 16/4

Step-by-step explanation: all you do is convert it into a fraction

Answer:

x=3

y=5

Step-by-step explanation:

3x+2y=19

- 2x+2y=16

_____________

x=3

3(3)=9

19-9=10

10÷2=5

y=5

Answer:

x=3

y=5

Step-by-step explanation:

Method 1 ; Substitution Method

[tex]3x + 2y =19\\2x+2y=16\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:3x+2y=19:\\\quad x=\frac{19-2y}{3}\\\\\mathrm{Subsititute\:}x=\frac{19-2y}{3}\\\begin{bmatrix}2\times \frac{19-2y}{3}+2y=16\end{bmatrix}\\\\Simplify\\\begin{bmatrix}\frac{38+2y}{3}=16\end{bmatrix}\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{38+2y}{3}=16:\quad y=5\\\\\mathrm{For\:}x=\frac{19-2y}{3}\\\\Substitute\:y\:= \:5\\x=\frac{19-2\times\:5}{3}\\\\\frac{19-2\times\:5}{3}=3\\\\x=3,\:y=5[/tex]

Method 2 : Elimination method

[tex]\begin{bmatrix}3x+2y=19\\ 2x+2y=16\end{bmatrix}\\\\\mathrm{Multiply\:}3x+2y=19\mathrm{\:by\:}2\:\\\mathrm{:}\:\quad \:6x+4y=38\\\\\mathrm{Multiply\:}2x+2y=16\mathrm{\:by\:}3\:\\\mathrm{:}\:\quad \:6x+6y=48\\\\\begin{bmatrix}6x+4y=38\\ 6x+6y=48\end{bmatrix}\\\\6x+6y=48\\-\\\underline{6x+4y=38}\\2y=10\\\\\begin{bmatrix}6x+4y=38\\ 2y=10\end{bmatrix}\\\\\mathrm{Solve}\:2y=10\:\mathrm{for}\:y:\quad y=5\\\mathrm{For\:}6x+4y=38\mathrm{\:plug\:in\:}y=5[/tex]

[tex]\mathrm{Solve}\:6x+4\times\:5=38\:\mathrm{for}\:x:\quad x=3\\\\x=3,\:y=5[/tex]

Answer:

0, 0.02, 2.01, 2 1/16, 2.2, 6.89, 6.98

Step-by-step explanation:

First thing is to turn 2 1/16 into decimal form which is 2.0625

Then look at the digit to the left of the decimal, 0 is the least, then 2, then 6

Answer:

30906012

Step-by-step explanation:

Answer:

3:11

Step-by-step explanation:

3x=11y

Rearrange to the format of the ratio.

11y = 3x

Let's find y/x. y/x is y:x.

11y = 3x

Divide both sides by 11.

11y/11 = 3x/11

y = 3x/11

NOW LET'S DIVIDE BOTH SIDES BY x TO GET x AS THE DENOMINATOR OF y.

y = 3x/11

y/x = (3x/11)/x

y/x = (3x/11) * 1/x

y/x = 3/11

Therefore, y:x = 3:11

Please thank, rate 5 stars, and give brainliest. Thank you.

Answer:

55, 116, and 120

Step-by-step explanation:

5. a. alternate exterior b. 55

6. a. corresponding b. 116

7. a. alternate interior b. 120

I haven't done this kinda math in a while, but im positive it's right. Good luck! :)

Answer:

A current of 5 amperes will produce the maximum power.

Step-by-step explanation:

Let be [tex]p(x) = -12\cdot x^{2}+120\cdot x[/tex], where [tex]p(x)[/tex] is measured in watts and [tex]x[/tex] in amperes. At first we must obtain the first and second derivatives of the function to determine the current associated with maximum power. That is:

First derivative

[tex]p'(x) = -24\cdot x + 120[/tex]

Second derivative

[tex]p''(x) = -24\cdot x[/tex]

Now, we equalize the first derivative to zero and solve it afterwards: (First Derivative Test)

[tex]-24\cdot x + 120 = 0[/tex]

[tex]x = 5\,A[/tex]

The only critical point is [tex]x = 5\,A[/tex].

As next step we need to assure that critical point leads to an absolute maximum by evaluating the critical point found above in the second derivative: (Second Derivative Test)

[tex]p(5)'' = -24\cdot (5)[/tex]

[tex]p''(5) = -120[/tex]

Which indicates that critical point leads to an absolute maximum.

A current of 5 amperes will produce the maximum power.

Answer: 5

Step-by-step explanation:

khan

Answer:

I will help you with the first one

Step-by-step explanation:

x=  -3  -2  -1  

y=  -4  -3  -2.59

Answer:

1392 x 10 m

Step-by-step explanation:

Answer:

1.392 x 10⁹ m

Step-by-step explanation:

when you put numbers in scientific notation, there is one (1) non-zero number before the decimal

1.392

now count how many place you would have to move the decimal to the right in order to make 1,392,000,000

9 place

this means your second half looks like x 10⁹

now put it all together

1.392 x 10⁹ m

Answer:

Step-by-step explanation:

You have everything you need to find the area directly

A = 1/2 * b * h

b = 20

h = 15

Area = 1/2 * 20 * 15

Area = 150 m^2

Answer:

[tex] \boxed{ \bold{ \boxed{ \sf{(3m - 4)(9 {m}^{2} + 12m + 16)}}}}[/tex]

Step-by-step explanation:

[tex] \sf{27 {m}^{3} - 64}[/tex]

[tex] \dashrightarrow{ \sf{( {3m)}^{3} - {(4)}^{3} }}[/tex]

Use the formula of a³ - b³ = ( a - b) ( a² + ab + b² )

[tex] \longrightarrow{ \sf{(3m - 4)(3 {m}^{2} + 3m \times 4 + {4}^{2} }})[/tex]

[tex] \longrightarrow{ \sf{(3m - 4)( {9m}^{2} + 12m + 16}})[/tex]

Hope I helped!

Best regards! :D

Answer:

86 is his final grade. He lost 24 points and gained 10 points .

Step-by-step explanation:

There are 25 questions total. Assuming that answering all 25 questions correctly earns you a 100.

Answer: 15

-7 - 6 - 2

This is the same as 7 + 6 +2, but negative due to the sign.

So, -15.

Answer:

-19

Step-by-step explanation:

a-6x

(-7)-6(2)

-7-12

-19

Answer:

1.5

Step-by-step explanation:

Answer:

1.5

Explanation:

-4  -3  0  1.5  5.5  7

this is because the median is 1.5 and if you cross out every number from each number u'll find urself with 1.5.

ex:

-4 -3 -2 -1 0 1 2 3 4 5 6 7

-3 -2 -1 0 1 2 3 4 5 6

-2 -1 0 1 2 3 4 5

-1 0 1 2 3 4

0 1 2 3

1 2

and in between 1 and 2 is 1.5 so 1.5 is ur answer

i hope this helped <3

Answer:

760,000

Step-by-step explanation:

759,993

we round 993 up to 1,000

Answer:

12

Step-by-step explanation:

collected can=18pound

total can to collect=42

collected can per week=2

now,

42-18 =24

so, remaining cans to collect is 24pound

and,

24/2

=12

so, Rufus have to collect for 12 weeks for 42pound of cans in total

Answer:

5/12<3/6

Step-by-step explanation:

3/6 is 1/2 and 5/12 is smaller than 1/2

Answer:

5/12 < 3/6

Step-by-step explanation:

3/6 is equivalent to 6/12 because 3 times 2 is 6 and 6 times two is 12. 6 (the new numerator of 3/6) is greater than the numerator of 5/12- 5. 5<6. They have the same denominator so 5/12< 6/12 which is the same as 5/12 < 3/6. Hope that helped!

Answer:

2/3 x 4/2

Step-by-step explanation:

Answer:

Consistent and Dependent

Step-by-step explanation:

Just did the question

Answer:

C

Step-by-step explanation:

The initial value obtained using the slope-intercept relation is 3 gallons.

We need to obtain the rate of change which gives the amount of gas entering into his car per second :

Rate of change = - 11 - 3) / (48 - 0)

Rate of change = 8/48 = 1/6 gallons

Using the slope intercept relation :

Choosing any pair of (x, y) point on the table :

(0, 3)

3 = 1/6x + c

3 = 1/6(0) + c

3 = 0 + c

c = 3

Therefore, the initial value is 3 gallons.

Learn more : https://brainly.com/question/23105648

Step-by-step explanation:

X + 6 = 3x - 2

Bringing like terms on one side

6 + 2 = 3x - x

8 = 2x

8/2 = x

4 = x

Answer:

subtracting 6 from both sides

Step-by-step explanation:

Answer:

1/56

Step-by-step explanation:

Answer:

1/56

Step-by-step explanation

First, find the common denominator

8 x 7 = 56

7 x 8 = 56

Your new equation is now:

7/56 - 6/56 = 1/56

Answer:

B) 0.65

Step-by-step explanation:

In a regression analysis, the formula for the coefficient of determination (R²)=

1 - SSE/SST

SSE = Sum of squared of errors

SST = Total sum of squares

From the above question,

SST = 4500

SSE = 1575

Coefficient of determination (R²) = 1 - 1575/4500

= 1 - 0.35

= 0.65

Therefore, the coefficient of determination = 0.65

The coefficient of determination of the given parameter is (b) 0.65

The given parameters are:

[tex]SST = 4500[/tex] --- the total sum of squares

[tex]SSE = 1575[/tex] --- the sum of squares error

The coefficient of determination (R²) is calculated using the following formula  

[tex]R^2 = \frac{SST - SSE}{SST}[/tex]

Substitute values for SST and SSE

[tex]R^2 = \frac{4500 - 1575}{4500}[/tex]

Simplify the numerator

[tex]R^2 = \frac{2925}{4500}[/tex]

Divide the fraction

[tex]R^2 = 0.65[/tex]

Hence, the coefficient of determination is (b) 0.65

Read more about coefficient of determination at:

https://brainly.com/question/17031457

Answer:

35

Step-by-step explanation:

I got my answer by multiplying the sea level he descended to the number of time he descended.

Answer:

477,900

Step-by-step explanation:

Hey there! I'm happy to help!

We see that 4 cm represents 5 km. We want to see how much 5 cm represents.

To get from 4 cm to 5 cm, you multiply by 5/4. So, we multiply our 5 km by 5/4 to see how kilometers are represented by 5 centimeters on the mask.

5(5/4)=6 1/4

Therefore, the number of km represented by 5 cm on the map is 6 1/4 km.

Have a wonderful day! :D

Answer: C) 40th percentile

=========================================================

Explanation:

The original list is {827,691,616,740,651,772,868,557,891,937} which has 10 items inside it.

The list sorts to {557,616,651,691,740,772,827,868,891,937}

We see that there are 3 items below 691. So one way to calculate the percentile is to do 3/10 = 30% like you did for your answer.

However, the term "percentile" is ambiguous as there is another way to calculate percentile. The other method involves the term in question. So we have 4 terms in the sublist {557,616,651,691} which is how your friend got 4/10 = 40%

It's unfortunate why this term is not well defined. Ideally your teacher would state instructions on how to deal with this dilemma, or post a formula to use.

The good news is at least "30th percentile" isn't listed as an answer choice, so we can rule out the first method above.