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2 years ago

6

Plz helpppp will mark brainliesttttt

2 answers:

Marat540 [252]2 years ago

8 0

A is true because 20+6+20+6=52
B is true because 20+8+20+8=56
C is wrong
D is wrong
E is wrong

sweet-ann [11.9K]2 years ago

3 0

The true statements would be
A and B
Reason is that one side is 20ft long a rectangle has 2 sets of matching sides.
So we can say that 2 sides equal 20 feet each. Total being 40 feet
So we take each B and multiply them by 2 for the two sides it shall equal.
6*2=12
8*2=16
Add those numbers to the 40 and will give you the corresponding amount of fence is required.

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X+3menor que 8 qual o resultado

elixir [45]

x+3<8

8-3 =5

X<5

any number less than 5 will work

7 0

3 years ago

How many gallons of water can fill a pool that is 50 yards by 20 yards and is 9 feet deep? (Assume 7 1/2 gallons per cubic foot.

serg [7]

it would take 10,800 gallons to fill the pool

8 0

3 years ago

Read 2 more answers

The difference between a number p and 6 is −14.

Bas_tet [7]

Answer:

the answer is -8 = p

Step-by-step explanation:

you stated that the difference of the two is -14, making it p - 6 = -14.

-8 - 6 = -14

6 0

3 years ago

Read 2 more answers

Please help me as soon as posable!! In hurry!!(24 points)

attashe74 [19]

The sequence is geometric, so

$a_n = r a_{n-1}$

for some constant r. From this rule, it follows that

$a_3 = r a_2 \implies 20 = 2r \implies r = 10$

and we can determine the first term to be

$a_2 = r a_1 \implies 2 = 10 a_1 \implies a_1 = \dfrac15$

Now, by substitution we have

$a_n = r a_{n-1} = r^2 a_{n-2} = r^3 a_{n-3} = \cdots$

and so on down to (D)

$a_n = r^{n-1} a_1 = 10^{n-1} \cdot \dfrac15$

(notice how the exponent on r and the subscript on a add up to n)

4 0

2 years ago

The general form of a circle is given as x^2+y^2+4x - 12y + 4 = 0. A) What are the coordinates of the center of the circle? B) W

Alex_Xolod [135]

Answer:

center = (-2, 6)

radius = 6

Step-by-step explanation:

<u>Equation of a circle</u>

$(x-a)^2+(y-b)^2=r^2$

(where (a, b) is the center and r is the radius)

Therefore, we need to rewrite the given equation into the standard form of an equation of a circle.

Given equation:

$x^2+y^2+4x-12y+4=0$

Collect like terms and subtract 4 from both sides:

$\implies x^2+4x+y^2-12y=-4$

Complete the square for both variables by adding the square of half of the coefficient of $x$ and $y$ to both sides:

$\implies x^2+4x+\left(\dfrac{4}{2}\right)^2+y^2-12y+\left(\dfrac{-12}{2}\right)^2=-4+\left(\dfrac{4}{2}\right)^2+\left(\dfrac{-12}{2}\right)^2$

$\implies x^2+4x+4+y^2-12y+36=-4+4+36$

Factor both variables:

$\implies (x+2)^2+(y-6)^2=36$

Therefore:

center = (-2, 6)
radius = √36 = 6

7 0

1 year ago