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3 years ago

A rectangular room is three times as long as it is wide, and its perimeter is 56 meters. Find the length of the room.

Mathematics

1 answer:

Anit [1.1K]3 years ago

7 0

Width = 7

length = 21

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prisoha [69]

Answer:

y = -1/5x - 3

Step-by-step explanation:

5 0

3 years ago

An arithmetic sequence has this recursive formula:

horsena [70]

Answer:

$\text{\bf{C.}}\quad a_n=4+(n-1)(-7)$

Step-by-step explanation:

An arithmetic sequence that is described by the explicit formula ...

$a_n=a_1+(n-1)d$

can also be described by the recursive formula ...

$\left \{\begin{array}{l}a_1=\text{(first term)}&a_n=a_{n-1}+d&\end{array}\right.$

Matching parts of the formulas, we see that a1 = 4, d = -7. Putting these values into the explicit formula gives ...

$a_n=4+(n-1)(-7)$

4 0

3 years ago

11 divided by 5555 pleasee help

Vlada [557]

0.001980 should be your correct answer

4 0

3 years ago

Read 2 more answers

Does anyone know the answer?

FromTheMoon [43]

Answer:

AB = 4.41

Step-by-step explanation:

→You are given the adjacent side and need to find the hypotenuse. For this, we use cos.

→Set it up, like so:

$cos25=\frac{4}{x}$

→To get rid of the x in the denominator, multiply everything by x:

$x(cos25=\frac{4}{x})$

$xcos25 = 4$

→Divide both sides by cos25:

x = 4.413

→Round to nearest hundredth:

x = 4.41

6 0

3 years ago

What value of z will make △DEF ≅ △JKI

Leto [7]

Answer:

z = 11

Explanation:

5y + 13 = 6y

Subtract 5y by both sides.

13 = y

Next,

z + 22 = 3z

Subtract z by both sides.

22 = 2z

Then, divide both sides by 2.

11 = z

Finally plug those answers into the equations.

5(13) + 13 = 78

6(13) = 78

(11) + 22 = 33

3(11) = 33

So △DEF ≅ △JKI because the value of z = 11.

6 0

3 years ago