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3 years ago

12

The length of the sides of a square is given by the expression 4.8x + 2.4. Which expression represents the perimeter of the squa

re?

2 answers:

AfilCa [17]3 years ago

5 0

The answer is b well it was b on my test

elixir [45]3 years ago

4 0

Just multiply the expression by 4.
4(<span>4.8x + 2.4)
19.2x+9.6</span>

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What is the length of EF in the right triangle below?

Rom4ik [11]

The square root of 120

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3 years ago

Solve by completing the square: x2 − 12x + 11 = 0 a 11 & 1 b -11 and -1 c 11 and -1 d -11 and 1 e none of the above

Andrews [41]

A (11 and 1) I did it in 2ways (sum and product, discriminant)

8 0

3 years ago

sheila has to pack 128 baskets of apples. she has packed 1/4 of the basket. How many baskets are left for her to pack

Natalka [10]

To answer this we will DIVIDE the amount of baskets by 4 (since it is 1/4) to see how many she has ALREADY packed, and ho many she has left. Lets do it:-

128 ÷ 4 = 32

CHECK OUR WORK:-

32 × 4 = 128.

So, she has done 32 baskets. lets see how many more she needs to pack:-

128 - 32 = 96.

So, Shelia has 96 baskets LEFT to pack,

Hope I helped ya!!

3 0

4 years ago

Read 2 more answers

Number 7. Please asap.

love history [14]

7a)

$\frac{n(n - 3)}{2} = 665\\n(n - 3) = 665 \cdot 2\\n(n - 3) = 1330\\n^2 - 3n = 1330\\n^2 - 3n - 1330 = 0\\n = \frac{-(-3) \pm \sqrt{(-3)^2 - 4 \cdot 1 \cdot (-1330)}}{2 \cdot 1} = \frac{3 \pm \sqrt{9 + 5320}}{2} = \frac{3 \pm \sqrt{5329}}{2} = \frac{3 \pm 73}{2}\\n_1 = \frac{3 + 73}{2} = \frac{76}{2} = 38\\n_2 = \frac{3 - 73}{2} = \frac{-70}{2} = -35$

If n is the amount of sides then there's 38 sides in a polygon with 665 diagonals

7b)

We do the same as 7a) but with 406. We get that $n_1 = 30.04$ and $n_2 = -27.04$ . A polygon cant have 30.04 sides

6 0

3 years ago

Read 2 more answers

Eva8 [605]

1sqmeter=100x100=100000sqcm
in 1sqcm there are 23/100=.23 grass plants
Therefore, there will be .23x100000=2300 grass plants in a sq.meter

5 0

3 years ago

Read 2 more answers