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Whitepunk [10]
2 years ago
6

Please answer both questions and show all work with explanations :) thank you soo much...

Mathematics
1 answer:
torisob [31]2 years ago
7 0

Answer:

1) 109 cm

2) 120 in²

Step-by-step explanation:

A rectangle is a quadrilateral with opposite sides the same length and four (4) right angles. The diagonal, together with two adjacent sides, forms a right triangle. The relationship between side lengths and the diagonal length is given by the Pythagorean theorem. If sides are "a" and "b" and the diagonal is "c", that theorem tells you ...

... c² = a² + b²

1) c² = (60 cm)² + (91 cm)² = 11881 cm²

... c = √11881 cm = 109 cm

2) The perimeter is double the sum of adjacent side lengths, so ...

... 2(a+b) = 46 in

... a + b = 23 in . . . . . divide by 2

The Pythagorean theorem tells you

... a² + b² = (17 in)²

Squaring the equation from the perimeter relation gives ...

... (a + b)² = (23 in)² = a² + 2ab + b²

Subtracting a² + b², we have

... (a² +2ab +b²) - (a² + b²) = (23 in)² -(17 in)²

... 2ab = (529 -289) in² = 240 in² . . . . . simplify

... 240 in²/2 = ab = 120 in² . . . . . area is the product of length and width

_____

We could solve the two equations for a and b to find that there are two possible solutions: (a, b) = (8, 15) or (15, 8). Either way, ab = 8·15 = 120.

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A community college has 150 word processors. The probability that any one of them will require repair on a given day is 0.025. T
Volgvan

Answer:

Binomial Distribution

Step-by-step explanation:

In this case there are only two possible outcomes that is either the processor requires repair or does not require.

In such cases binomial distribution is beneficial to use.

Binomial Distribution is simply the probability of failure or success in an experiment that is repeated multiple times.

for binomial to be used following three conditions are to be used:

1. Fixed number of trails

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6 0
3 years ago
Does 4 = 2+2 it seem like I'm really dumb but, trust me this is really hard
igomit [66]

Answer:

Yes it does

Sorry I need 20 characters so 2+2=4 there you go

5 0
2 years ago
Read 2 more answers
The temperature in a town is 23.2°F during the day and -17.7°F at night. Find the difference in the temperatures.
tankabanditka [31]
40.9 degrees F°
i hope it helped :)
4 0
2 years ago
Factor completely 3x^2+7x-6
Likurg_2 [28]
I find the following method easiest to factor this equation.

1. First, fill in what you know would be the factors for the first value, 3x^2.  The number 3 only has 2 factors: 3 and 1. Therefore, we know the first values are:

(3x _____)(x_____)

2. Next, figure out what the possible factors for the last value would be (-6). The following combinations are possible:
2 and -3 OR -3 and 2
-2 and 3 OR 3 and -2
-1 and 6  OR 6 and -1
1 and -6 OR -6 and 1

3. Plug in the combinations into step 1 and see which gives you the correct answer:
<span>(3x + 2)(x - 3) = 3x^2 - 7x - 6 --> no
</span>(3x - 3)(x + 2<span>) = 3x^2 + 3x - 6 --> no
</span>(3x - 2)(x + 3) = 3x^2 + <span>7x - 6 --> YES</span>
7 0
3 years ago
Read 2 more answers
Jeff has been offered a new job which requires that he invests $100
hichkok12 [17]

Answer:

At the beginning of 6th month , Jeff will have in his account $ 520 .

Step-by-step explanation:

At the beginning of 6th month , Jeff will have in his account,

$ ( 100 \times (1 + 0.02\times 4) + 100 \times (1 + 0.02 \times 3) + 100 \times (1 + 0.02 \times 2) + 100 \times (1 + 0.02) + 100)

= $ (100 \times (5 + 0.02 \times (4 + 3 + 2 + 1)))

= $ (100 \times (5 + 0.02 \times 10))

= $ (100 \times 5.2)

= $ 520

since, the $ 100 deposited at the end of 1st month earns interest for 4 months till the end of the 5th month, the $ 100 deposited at the end of the 2nd month earns interest for 3 months and so on till the last $100 deposited earns interest for '0' month.

7 0
3 years ago
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