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3 years ago

The length of a rectangular sign is 3 times it's width. If the signs perimeter is 32 inches what is it,s area

Mathematics

1 answer:

Gemiola [76]3 years ago

5 0

To solve this you would have to do 32 times 3, since its 3 times the length

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- Find the coordinates of A if B(0,5.5) is the midpoint of AC and C has coordinates<br><br> (-3,6).

emmainna [20.7K]

Given:

Coordinates of point C are (-3,6).

Point B(0,5.5) is the midpoint of AC.

To find:

The coordinates of A.

Solution:

Let the coordinates of point A are (a,b).

Formula for midpoint:

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

Using the above formula, the midpoint of A(a,b) and C(-3,6) is

$B=\left(\dfrac{a+(-3)}{2},\dfrac{b+6}{2}\right)$

$(0,5.5)=\left(\dfrac{a-3}{2},\dfrac{b+6}{2}\right)$

On comparing both sides, we get

$\dfrac{a-3}{2}=0$

$a-3=0$

$a=3$

and,

$\dfrac{b+6}{2}=5.5$

$b+6=11$

$b=11-6$

$b=5$

Therefore, the coordinates of point A are (3,5).

8 0

4 years ago

What value of x makes the following equation true x + 10 = 18

Mademuasel [1]

X+10=18. |-10 from both sides
x+10-10=18-10
x=8

6 0

3 years ago

Read 2 more answers

What value of k makes the factor (x+3) a factor of the function f(x)=3x^3-2x+k?

4vir4ik [10]

Step by step equation

5 0

4 years ago

Can someone please help me with this. whoever answers first will be the brainleyist

pav-90 [236]

Answer:

Step-by-step explanation:

6(5+x) = 30 + 6x

1. Distribute the 6 to both the 5 and the x.

7x5x3 = 105

1. Just multiply them together.

28 - 3(2+4)/9 = 26

1. PEMDAS

2. Add inside the parenthesis: 28 - 3 x 6 / 9

3. Multiply: 28 - 18 / 9

4. Divide: 28 - 2

5. Subtract: 26

6 0

3 years ago

On the fastest speedways, some drivers reach average speed of 3 miles per minute. Write a formula that gives the number of miles

kondor19780726 [428]

<span>The formula is M = 3x
The distance is 3(33) = 99 mi.</span>

7 0

3 years ago