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3 years ago

Need help DUE TOMORROW HELL! Don’t get

Mathematics

1 answer:

Vlada [557]3 years ago

3 0

The side of the square is 4 cm since 4x4= 16

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Joe wants to put a fence around his rectangular garden. his garden measures 33 ft by 39 ft. the garden has a path around it that

sukhopar [10]

The perimeter of a rectangle is given by:
P = 2W + 2L
Where,
W: width
L: long
Substituting the values we have to:
P = 2 * (33 + 2 * (3)) + 2 * (39 + 2 * (3))
P = 168 feet
Answer:
joe needs to enclose the garden and path 168 feet of fencing material

4 0

2 years ago

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Find the inverse of the matrix <img src="https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D-4%266%5C%5C8%26-12%5C%5C%

liraira [26]

Answer:

Step-by-step explanation:

If there is a 2x2 matrix as $\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right]$

The determinant is given by $\frac{1}{ad-bc}\left[\begin{array}{ccc}d&-b\\-c&a\\\end{array}\right]$

Now, if we calculate the value of "ad - bc", we see that:

$(-4)(-12)-(8)(6)=0$

We can't calculate the inverse, the inverse doesn't exist. The answer is D.

4 0

2 years ago

Write 12/15 in the simplest form

victus00 [196]

If you would like to know what is 12/15 in the simplest form, you can calculate this using the following step:

12/15 simplifies to 4/5 (the common factor of 12 and 15 is 3, so you can divide both numbers by 3).

The result is 4/5.

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2 years ago

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A homeowner has two smoke detector alarms installed, one in the dining room (adjacent to the kitchen) and one in an upstairs bed

cestrela7 [59]

Answer:

0.97

Step-by-step explanation:

Given that a homeowner has two smoke detector alarms installed, one in the dining room (adjacent to the kitchen) and one in an upstairs bedroom (above the kitchen). If cooking produces smoke in the kitchen, the probability of setting off the dining room alarm (D) is .95. The probability of setting off the bedroom alarm (B) is .40.

Both alarms are independent of each other.

Probability for smoke detection=P(any one alarm rings)

=P(Kitchen alarm sets off)+P(bed room alarm sets off)-P(Both sets off)

Since both are independent

P(Both) = $0.95*0.40\\=0.38$

Probability for smoke detection

= 0.95+0.40-0.38

=0.97

7 0

2 years ago

For the past 5 years, Frank and Peggy have deposited $15,000 in a retirement account with a simple interest rate of 7%. They pla

VMariaS [17]

next 25 years addition of 1050x25 = $26250 they

will get

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2 years ago

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