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3 years ago

Simplify the expression. 2+3(x-4) *

Mathematics

2 answers:

Grace [21]3 years ago

8 0

The answer fam is....... 3x - 10

julia-pushkina [17]3 years ago

4 0

Answer:

2+3x-12

Step-by-step explanation:

2+3(x-4)

2+3x-12

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A square has a diagonal length of 10 ft. Draw a diagram and determine the perimeter of the square.

denpristay [2]

The perimeter of the square is: $20\sqrt2$ ft

Step-by-step explanation:

The picture is attached with the answer.

the diagonal of a square divides it into two right angled-triangles.

We can use one of the triangle to find the length of side as the diagonal will be the hypotenuse of the triangle

Let a be the side of the square, then according to Pythagoras theorem

$d^2=a^2+a^2\\(10)^2 = 2a^2\\2a^2=100$

Dividing both sides by 2

$\frac{2a^2}{2}=\frac{100}{2}\\a^2=50$

Taking Square root on both sides

$\sqrt{a^2}=\sqrt{50}\\a=\sqrt{25*2}\\a=\sqrt{5^2 * 2}\\a=5\sqrt{2}\ ft$

Now,

$P = 4a\\P = 4 * 5\sqrt{2}\\=20\sqrt{2}\ ft$

Hence,

The perimeter of the square is: $20\sqrt2$ ft

Keywords: Perimeter, Pythagoras Theorem

Learn more about Square at:

#learnwithBrainly

5 0

3 years ago

Please help me asap, i was absent the day we learned this and haven't been able to pick it up

Maksim231197 [3]

Answer:

Your dead meat then...

Step-by-step explanation:

But I’m pretty sure its b?

sorry if it’s wrong

7 0

2 years ago

Read 2 more answers

The points (2, -12) and (4, r) lie on a line with slope 4. Find the missing coordinate r.

NISA [10]

Answer: The missing coordinate -10

Step-by-step explanation: (4,r) = -10

7 0

2 years ago

Read 2 more answers

The median weight of 21 dogs in a pet store is 14 pounds. Which action could CHANGE the median? A) the store gets a new 14-pound

mylen [45]

Answer:

B. the store gets a new 40-pound dog

Step-by-step explanation:

5 0

3 years ago

The graph of the function y = x2 + 2 is shown. Which equation will shift the graph of the function down 4 units?

ziro4ka [17]

This graph shifted down 4 units would be y = x^2 - 2.

Different shifts in standard graphs each have to be done in their own way. Shifting up and down is done by manipulating the y-intercept, which is the number at the end of the equation. Since we started at +2 and it is going down 4, it brings us to -2.

6 0

2 years ago