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3 years ago

Solve the equation for the indicated variable. Show work, please!!

Mathematics

1 answer:

Tomtit [17]3 years ago

3 0

$A=\dfrac{bh}{2}\\
2A=bh\\
b=\dfrac{2A}{h}$

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A straight fence is constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. A certain fence begins a

Ket [755]

Answer: 72 ft

Step-by-step explanation:

Given

The width of a post is $w=6\ in.$

Posts are separated by $5\ ft$ chain

for 2 posts, length is $6+5+6=17\ ft$

for 3 posts, length is $6+5+6+5+6=28\ ft$

for 4 posts, it is $28+5+6=39$

i.e. 11 ft is adding on the addition of another post

for 7 posts it is $17+11\times 5=72\ ft$

Thus, the total length of the fence is $72\ ft$

4 0

3 years ago

A bag contains 7 red marbles, 8 blue marbles and 4 green marbles. If three marbles

dybincka [34]

Answer:

Step-by-step explanation:

A bag contains 8 red marbles, 3 blue marbles and 7 green marbles.

Total = 18 marbles.

Probability of drawing three red marbles = probability of drawing one red without replacement + probab of drawing another without reeplacement + probab of drawing a third without replacement.

Probability of drawing three red marbles = 8/18 + 7/17 + 6/16 = 0.4444 + 0.4118 + 0.3750 = 1.2312.

6 0

3 years ago

Find the volume of a cylinder with a diameter of 22 m and a hright of 15 cm

quester [9]

Volume of cylinder:

=area large×height
= 3.14×11×11×15
=5699.1

Hopes help!

4 0

3 years ago

How many numbers can you make between 0-99 using exactly four 4s and the operations $$ +,−,×,÷?

zlopas [31]

Answer:

Step-by-step explanation:

I find 37 numbers in that range:

{0, 1/16, 1/8, 1/5, 1/3, 1/2, 3/4, 4/5, 1, 5/4, 4/3, 2, 3, 7/2, 15/4, 4, 17/4, 9/2, 5, 6, 7, 8, 9, 12, 15, 16, 17, 20, 24, 28, 32, 36, 48, 60, 64, 68, 80}

For these numbers we have used only the indicated operations. No minus signs were used.

_____

<em>Additional comment</em>

Of the 320 ways the numbers can be combined, 15 result in division by zero. Many other results are outside the 0-99 range of interest. In total, there are 56 unique rational results.

6 0

3 years ago

The table represents a function.

mezya [45]

Answer:

-8

Step-by-step explanation:

You are given the following table representing the function f(x):

$\begin{array}{cc}x&f(x)\\-4&-2\\-1&5\\3&4\\5&-8\end{array}$