Find the perimeter and round your answer to the nearest tenths. Can anyone help me with this? I cannot find any videos or examples like this and I'm extremely confused​

Answer:

x = 7

Step-by-step explanation:

To find the value of x

Transpose

3x-4=17

3x = 17 +4

3x = 21

x = 21/3

x = 7

We can even cross check by replacing the value of x by 7

3 (7) - 4 = 17

21 - 4 =17

17 = 17

CROSS-CHECKED

Answer:

5m

Step-by-step explanation:

use the pythagorus theorem

making a diagram will make it easier

Answer:

(5, 2 ) and (- 1, 8 )

Step-by-step explanation:

Given the equations

y = - x + 7 → (1)

y = 0.5(x - 3)²

   = 0.5(x² - 6x + 9)

y    = 0.5x² - 3x + 4.5 → (2)

Substitute y = - x + 7 into (2)

- x + 7 = 0.5x² - 3x + 4.5 ( subtract - x + 7 from both sides )

0 = 0.5x² - 2x - 2.5 ( multiply through by 2 ) , then

x² - 4x - 5 = 0 ← in standard form

(x - 5)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 1 = 0 ⇒ x = - 1

Substitute these values into (1) for corresponding values of y

x = 5 : y = - 5 + 7 = 2 ⇒ (5, 2 )

x = - 1 : y = -(- 1) + 7 = 1 + 7 = 8 ⇒ (- 1, 8 )

Answer:

pls mention the question directly

1

k^2 = 4k

k = 0, k = 4

#2

k^2 - 5k = k + 7

k^2 - 6k = 7

k^2 - 6k + 9 = 16

k - 3 = 4 ⇒ k = 7

k - 3 = -4 ⇒ k = -1

#3

k^3 - 5k^2 + 3k = -k

k^3 - 5k^2 + 4k = 0

k(k^2 - 5k + 4) = 0

k = 0, k = 1, k = 4

#4

|k + 1| + 2 = 8

|k + 1| = 6

k = 5, k = -7

Answer:

43.2

Step-by-step explanation:

40/100 * 108

4/100*108

43.2

Answer:

(3/2, 3/2 so 3 over 2 3 over 2 is the answer you can pick what to put

Answer:

(-5/2, -5/2)

Step-by-step explanation:

(x1 + x2/2, y2 + y1/2)

[-4 + (-1)/2 , -1 + (-4) /2]

(-5/2, -5/2)

Answer:

This should be all of them

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

It would be -2+2(-3)

Which means -2 plus 2 times -3

According to PEMDAS you have to do parenthesis first so 2 times -3 is -6 +-2=-8

So the answer is -8

Answer:

it would be -2 + 2(-3)

Step-by-step explanation:

the numbers given would replace the variables, so x would become -2 since its -x, and y would be (-3) in parenthesis since its to be multiplied (i believe if im remembering correctly) therefore it would become:

-2 + 2(-3)

keeping all the signs and proper places

hope this helped and is what you were looking for!!

Answer:

50%, 25%, 12.5%

Step-by-step explanation:

A half life is how long some substance stays whole untill it gets cut in half.

A half life of a hundred years means that after a hundred years, 50% will remain.

Then 25% and so on.

Answer:

Half-life period is 100 years, it means after 100 years the amount halves.

Answer:

the awnser is 8y if u are still on that

Answer: step 3

Step-by-step explanation: that is supposed to be subtraction i am 99.9% sure

2(a - 3) + 2(4a - 10) =

= 2a - 6 + 8a - 20 =

= 2a + 8a - 6 - 20 = 10a - 26 ← the end

Answer: I think it is 10a-26

Step-by-step explanation: (4a-10) + (4a-10) + (a-3) + (a-3)

                                              = 10a-26

We need to find the piecewise function for the situation

The piecewise function is C(x) = 50 + 0.10(x + 500)

Charge for 500 minutes = $50

Charge per additional minutes = $.10

Let

x = total minutes

C(x) = total cost

The piecewise function:

Total cost = cost for 500 minutes + additional cost per minutes (total minutes - 500 minutes)

C(x) = 50 + 0.10(x - 500)

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https://brainly.com/question/11824673

Answer:

f(6) = 35

Step-by-step explanation:

f(6) means the function value for the x-coordinate  6. To find this, we need to find out which function to use (either 0 or 35x-175). 0≤x≤5 means that f(x)=0 for any value between 0 and 5 and including 0 and 5 themselves. However, we need to find the value for x=6, so we need to use the other function (35x-175). This gives us:

f(6) = 35 * 6 - 175 = 210 - 175 = 35

I hope this helps!

Answer:

2

Step-by-step explanation:

(4)(2)+4

-------------

(2)(4)−2

Replace x and y with the numbers

(4)(2) + 4 = 12

(2)(4) - 2 = 6

12/6 = 2

therefore answer is 2

Answer:

2

Step-by-step explanation:

x=2 y=4

4x + y /2y - x

4(2) + 4 / 2(4) - (2)

8 + 4 / 8 - 2

12 / 6

2

Brainliest is appreciated

Answer:

3rd option

Step-by-step explanation:

Consider the coordinates of U and U'

U (- 4, 0 ) and U' (2, 1 )

To go from - 4 → 2 in the x- direction means adding 6

To go from 0 → 1 in the y- direction means adding 1

Then the translation rule is

(x, y ) → (x + 6, y + 1 )

Step-by-step explanation:

DBC = TBC + DBT

DBT = DBC - TBC

DBT = 25X +7 -( 12X + 5 )

DBT = 25X + 7 - 12X -5

DBT = 13 X + 2

TBC = 12x + 5

DBC = 25x + 7

ur question is missing an information to find x

Answer:

6x-3

Step-by-step explanation:

the perimeter of triangle =

(2x +3)+ (x - 1)+ (-5 + 3x) =

2x +3+x - 1 -5 + 3x =

6x -3

Answer:

Also known as a graphic, an image is a representation of the external form of a person or thing in art.

Step-by-step explanation:

Answer:

A=2

B=-3

C=-5

Step-by-step explanation:

The highiest coefficient in degree of the polynomial is 2 on the left and 1*A*1,

A=2

Let's make the synthetical division:

[tex]\boxed{A=2}\\\begin{array}{c|c|c|c|c|c}&x^4&x^3&x^2&x&1\\---&---&---&---&---&---\\&2&-13&19&5&1\\x=4&&8&-20&-4&4\\&2&-5&-1&1&-5\Longrightarrow \boxed{C=-5}\\x=-\frac{1}{2}&-1&3&-1&\\2&-6&2&&\\---&---&---&---&---&---\\\end {array}\\\\\\\boxed{2x^4-13x^3+19x^2+5x+1=(x-4)(2x+1)(x^2-3x+1)-5}\\\\\\\boxed{B=-3}\\[/tex]

Answer:

x=2

Step-by-step explanation:

3x – 5 = 1

3x-5=1

Add 5 to each side

3x-5+5 = 1+5

3x = 6

Divide by 3

3x/3 = 6/3

x = 2

Answer:

pura na hune kaam hunxa vanera jabarjasti garnu. maybe

Answer:

Step-by-step explanation:

The total distance covered by Megan after 2 hours is 6 miles

Recall :

Distance = speed × time

Time = 2 hours

Speed = 3 mph

To obtain the total distance covered by Megan, we take the product of Megan's speed and time

Hence,

Distance covered = 2 × 3 = 6 miles

Therefore, distance covered by Megan is 6 miles.

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