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3 years ago

If x=1 what is the value of y given 2x+2y=18

Mathematics

1 answer:

8090 [49]3 years ago

8 0

Answer:

Step-by-step explanation:

if 2 times 1 equals 2 then subtract that from 18 and you get 16, divide that by 2 and that should be your answer

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Giving brainliest pls help quick

olga55 [171]

Answer:

x is 55 and the perimeter is 120

Step-by-step explanation:

55+55 is 110 and 5+5 is 10 so that all adds up to 120

3 0

3 years ago

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Sketch a graph of the function. Given the piecewise definition f(x) ={- 2x - 4 if x < - 2 f (x)= {x+3 if x>-2 Domain: Rang

kakasveta [241]

Explanation:

$f(x)=\begin{cases}-2x-4\text{ if x -2}\end{cases}$

The line of the first part of the function, without the restriction of x <=-2:

The line of the second part of the function, without the restriction is:

To graph the full function, we have to draw a line over the green dashed line until x = -2 and then continue drawing but now over the orange dashed line

Answer:

The graph of the function is:

• Domain:

$\begin{gathered} (-\infty,\infty) \\ \text{ or also} \\ -\infty• Range[tex]\begin{gathered} \lbrack0,\infty) \\ \text{ or also} \\ 0\le y$

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1 year ago

The perimeter of an equilateral triangle is 15 inches more than the perimeter of a square, and the side of the triangle is 8 in

Setler [38]

ANSWER:

The length of a side of the triangle is 17 inches.

SOLUTION:

Given, the perimeter of an equilateral triangle is 15 inches more than the perimeter of square.

And the side of the triangle is 8 inches longer than the side of the square.

Let the length of the side of a triangle be x.

And the length of the side of a square be y.

perimeter of triangle = a + b + c , where a , b, c represents side

perimeter of square = a + a + a +a , where a represents side

Given, the perimeter of an equilateral triangle is 15 inches more than the perimeter of square. Hence we form a equation as

Then, x + x + x = 15 + y + y + y + y

3x = 15 + 4y ---- (1)

Now, given that, x = 8 + y ---- (2)

Substitute (2) in (1)

3(8 + y) = 15 + 4y

24 + 3y = 15 + 4y

4y – 3y = 24 – 15

y = 9

Now, substitute y value in (2)

x = 8 + 9 = 17

Hence, the length of a side of the triangle is 17 inches.

5 0

3 years ago

2 numbers whose product is 40 and sum is -13

evablogger [386]

1. -5 and -8
2. -7 and -4
3. -15 and -1
4. 7 and -2
5. -5 and 1
6. -5 and 2
7. -7 and 8
8. -4 and 5

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2 years ago

Given f(x) = 3x+5 work out the value for f(2)

bagirrra123 [75]

Answer:

f(2) = 11

Step-by-step explanation:

f(x) = 3x+5

f(2) = 3(2)+5

f(2) = 6+5

f(2) = 11

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3 years ago

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