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shepuryov [24]
2 years ago
15

Andrea wants to plant a garden and surround it with decorative stones.She has enough stones to enclose a rectangular garden with

a perimeter of 68 ft,but she wants the garden to cover no more than 240 ft².What could be the width of her garden?
Inequality statement:
Solution:​
Mathematics
1 answer:
beks73 [17]2 years ago
3 0
<h2>Sorry but I don't know!!</h2>
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Maggie had 20 ribbons. 2/5 of the ribbons are polka-dot Ted ribbons. how many are not polka-dotted?
Solnce55 [7]
12 ribbons
p.s: im in 7th grade so you can trust me
5 0
3 years ago
Read 2 more answers
Prove the following statements: (a) For every integer x, if x is even, then for every integer y, xy is even. (b) For every integ
Murrr4er [49]

Answer and Step-by-step explanation:

(a) Given that x and y is even, we want to prove that xy is also even.

For x and y to be even, x and y have to be a multiple of 2. Let x = 2k and y = 2p where k and p are real numbers. xy = 2k x 2p = 4kp = 2(2kp). The product is a multiple of 2, this means the number is also even. Hence xy is even when x and y are even.

(b) in reality, if an odd number multiplies and odd number, the result is also an odd number. Therefore, the question is wrong. I assume they wanted to ask for the proof that the product is also odd. If that's the case, then this is the proof:

Given that x and y are odd, we want to prove that xy is odd. For x and y to be odd, they have to be multiples of 2 with 1 added to it. Therefore, suppose x = 2k + 1 and y = 2p + 1 then xy = (2k + 1)(2p + 1) = 4kp + 2k + 2p + 1 = 2(kp + k + p) + 1. Let kp + k + p = q, then we have 2q + 1 which is also odd.

(c) Given that x is odd we want to prove that 3x is also odd. Firstly, we've proven above that xy is odd if x and y are odd. 3 is an odd number and we are told that x is odd. Therefore it follows from the second proof that 3x is also odd.

3 0
3 years ago
Given you or a person holding a kite string 100 feet long write and draw what the height or altitude the kite is off the ground
Salsk061 [2.6K]

Answer: 75.47\ ft

Step-by-step explanation:

Given

String of the kite is l=100\ ft

Angle of elevation \theta=49^{\circ}

suppose altitude of the kite is h

from the figure, we can write

\Rightarrow \sin 49^{\circ}=\dfrac{h}{100}\\\\\Rightarrow h=100\sin 49^{\circ}\\\\\Rightarrow h=75.47\ ft

Thus, the altitude of the kite is 75.47\ ft

8 0
3 years ago
Pls help see (pic posted)
PolarNik [594]

Answer:

<h2>AB=8.4 inches</h2><h2>AC=13.05 inches</h2>

Solution,

\frac{ab}{bc}   = tan \: 40 \\ ab = bc \times tan \: 40 \\ ab = 10 \times 0.84 \\ ab = 8.4 \: inches \:

\frac{bc}{ac}  = cos \: 40 \\  \frac{bc}{cos \: 40}   = ac \\ ac =  \frac{10}{cos \: 40}  \\ ac = 13.05 \: inches

Hope this helps...

Good luck on your assignment..

7 0
3 years ago
Suppose we want to choose 2 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair
Paraphin [41]

Answer: First off. Question or statement? Secondly. What?

Step-by-step explanation: Third. What?

7 0
2 years ago
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