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3 years ago

If the area of the triangle is 84 in2 squared, what is the value of x?

Mathematics

2 answers:

Pani-rosa [81]3 years ago

8 0

Well, 84/ 2 is 42
And 7 times 6 is 42
So it'll be 6 inches

alexira [117]3 years ago

7 0

It will be 24 inches hope this will be helpful

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1/2x - 5 = 10 - 3/4x Please show work !

marin [14]

Answer:

x= $\frac{1}{12}$

Step-by-step explanation:

1/2x - 5 = 10 - 3/4x

4x/2x - 5 × 4x = 10 × 4x - $\frac{3 x 4x}{4x}$

2 -5 × 4x = 10 × 4 - 3

2 - 20x = 40x - 3

-20x - 40x = -3 - 2

-60x = -3 - 2

-60x = -5

x = $\frac{-5}{-60}$

x = $\frac{1}{12}$

6 0

3 years ago

Tucker is painting his pool deck over the weekend. The area of the deck is 76 1 2 square meters. He paints 2 3 of the deck befor

evablogger [386]

Answer:

25 1/2 square meters remaining

Step-by-step explanation:

Total area of the pool deck=76 1/2 square meters

He painted 2/3 of the deck before stopping for lunch

Total painted=2/3 of 76 1/2

=2/3*153/2

=306/6

=51 square meters

Total remaining=Total area - total painted area

=76 1/2 - 51

=153/2 - 51

=153-102/2

=51/2

=25 1/2 square meters remaining

7 0

3 years ago

What is the solution to 12x+18=4(5x-3) A. 1 1/2 B. 3 3/4 C. 7/8 D. 4/15

Olegator [25]

Answer:

Step-by-step explanation:

So we have the equation:

$12x+18=4(5x-3)$

Distribute the right:

$12x+18=20x-12$

Add 12 to both sides:

$12x+30=20x$

Subtract 12 from both sides:

$30=8x$

Divide both sides by 8:

$x=30/8$

Reduce:

$x=15/4$

Put into mixed fractions:

$x=12/4+3/4=3\text{ } 3/4$

Our answer is B :)

3 0

3 years ago

Read 2 more answers

Write the equation of a circle with its center at (0, 0) and a radius of 3.

denpristay [2]

The answer is x^2 + y^2 = 9

For this problem, you should use the equation of circle:

(x - h) ^2 + (y - k)^2 = r^2

where (h,k) is the coordinates of the center
and r is radius

(x - 0) ^2 + (y - 0)^2 = 3^2

Therefore:

x^2 + y^2 = 9

8 0

4 years ago

What is the perimeter of a semicircle with a diameter of 22?

seraphim [82]

I....d.....k..... you can do this to me to lol.

6 0

3 years ago