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Natasha2012 [34]

3 years ago

12

Which expression is equivalent to3 (1 + x)+7

1 answer:

ivann1987 [24]3 years ago

6 0

Expressions equivalent to 3(1+x)+7 is x+10

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Find the length of the diagonal AD in the pentagon ABCDE shown in the coordinate plane.

Xelga [282]

Answer:

$\sqrt{73}$ units.

Therefore, Option C is correct.

Step-by-step explanation:

We have given a pentagon ABCDE

We need to calculate its length

That means we have to find the distance of AD

So, coordinates of A(1,6) and D(4,-2)

Using distance formula:

$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Here, $x_1=1,y_1=6,x_2=4,y_2=-2$

On substituting the values we will get:

$\sqrt{(4-1)^2+(-2-6)^2}$

On simplification:

$\sqrt{3^2+(-8)^2}$

$\sqrt{9+64}$

$\sqrt{73}$ .

Hence, the length of AD is $\sqrt{73}$ units.

Therefore, Option C is correct.

6 0

4 years ago

How far from the base of the house do you need to place a 15' laddder so that it exatly reaches tehe top of a 12' wall?

ANTONII [103]

Check the picture below.

3 0

3 years ago

No explanation required, just a quick answer please!

hram777 [196]

The answer to the question

4 0

3 years ago

What's the value of x 163=2+69

Nezavi [6.7K]

I got 71 but I’m not quite sure

8 0

3 years ago

A=1/2bh solve for b.

melamori03 [73]

Answer:

2A /h = b

Step-by-step explanation:

A=1/2bh

Multiply each side by 2

2A = 2*1/2bh

2A = bh

Divide each side by h

2A/h = bh/h

2A /h = b

8 0

3 years ago

Read 2 more answers