3 years ago

If the perimeter (the distance around) of a rectangle is 54 inches and its width is 12 inches, how long is the rectangle?

Mathematics

1 answer:

Liula [17]3 years ago

3 0

Answer:

15 in

Step-by-step explanation: It would be 15 in because 12+12 equals 24 and 50-24=30 and 30 divided by 2 equals 15 in.

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For what values of x is x2-36=5x true?<br> 0 -9 and -4<br> O4 and 9<br> O4 and -9<br> o 9 and 4

mars1129 [50]

Answer:

-4 and 9

Step-by-step explanation:

we have

$x^{2} -36=5x$

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2} -36=5x$

$x^{2}-5x-36=0$

$a=1\\b=-5\\c=-36$

substitute in the formula

$x=\frac{-(-5)(+/-)\sqrt{-5^{2}-4(1)(-36)}} {2(1)}$

$x=\frac{5(+/-)\sqrt{169}} {2}$

$x=\frac{5(+/-)13} {2}$

$x=\frac{5(+)13} {2}=9$

$x=\frac{5(-)13} {2}=-4$

therefore

The equation is true for -4 and 9

4 0

3 years ago

I have a pattern in each sequence what are the next two terms of each sequence 2 4 8 16

netineya [11]

32 and 64 as the previous term is multiplied by two 2 x2 =4 or 16x 2= 32

6 0

3 years ago

Select the set or sets that the number below belongs to. Be sure to account for ALL sets. (Rational, Integer, Whole, Natural). T

arsen [322]

Answer:

rational interger whole and natural.

Step-by-step explanation:

It's all of them

5 0

3 years ago

Read 2 more answers

Charlie know that 3 blocks are needed to make a tower that is 0.5 foot high. How many blocks will he need to make a tower that i

vitfil [10]

Answer:

6 feet

Step-by-step explanation:

that is the answer

6 0

3 years ago

Joanne and Roger are planting a rectangular garden. The garden is 7 ft by 13 ft. They want to use half of the garden for

Svetlanka [38]

Answer:

45.5 ft^2

Step-by-step explanation:

The area of the garden is (7 ft) by (13 ft), which works out to 91 ft^2.

The half garden used for cucumbers is (91 ft^2)/2, or 45.5 ft^2.

3 0

3 years ago