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Ad libitum [116K]
3 years ago
11

Solve the quadratic equation (x-3)2 = 49

Mathematics
1 answer:
Tresset [83]3 years ago
3 0
27.5, because 27.5-3=24.5 and 24.5x2= 49
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the perimeter of a rectangle swimming pool is 486 feet. The width of the pool is 35 feet less than the length. Find the length a
statuscvo [17]

Answer:

Length: 139 feet

Width: 104 feet

Step-by-step explanation:

The formula for the perimeter of a rectangle can be given by P = 2l + 2w. We are given the perimeter of the pool along with the width.

P = 486

w = l - 35

From here, all we have to do is plug back into the original formula:

486 = 2l + 2(l - 35)

Which can be further simplified as:

486 = 2l + 2l - 70

486 = 4l - 70

From here, all we have to do is add 70 to both sides of the equation and divide by four:

556 = 4l

139 = l

To make sure that this answer is accurate, we can find that the width of the rectangle should then be 104 (given by 139 - 35). All we have to do is plug back into the original equation:

P = 2l + 2w

P = 2(139) + 2(104)

P = 278 + 208

P = 486

And the substitution works, so the length of the rectangle would be 139 feet and the width would be 104 feet.

5 0
2 years ago
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What’s the circumference, to this problem ?
jekas [21]

Answer:

9.42 i think

Step-by-step explanation:

3 0
2 years ago
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What is the absolute value of the square root of 5 minus 5?
OLEGan [10]

-2.7639320225 is the exact when estimated -3 hope this helped if can pls mark as brainliest have a great day!

6 0
3 years ago
Z = { x:x is an integer, x ≥ - 3 and x ≤ + 3}​
tankabanditka [31]

Answer:

If this is asking for the set:

Z = {-3, -2, -1, 0, 1, 2, 3}

Step-by-step explanation:

Z is the set of all integers and it appears that you are being asked for the values in the set Z that are within the range:  -3 ≤x ≤ 3

5 0
2 years ago
I REALLY, REALLY, NEED HELP!!! WILL GIVE BRANLIEST RATE AND THANKS
sweet [91]

With lower case numbers and numerals from 0-9 there are about <u>4,738,381,338,321,616,896 possible passwords.</u>

<u></u>

Add up the number of possible numbers and letters.

There are 26 letters in the alphabet, 0-9 would mean 10 digits. Which is 36.

The length of the password she wants is 12.

36 to the power of 12 = 4738381338321620000

4738381338321620000

5 0
2 years ago
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