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3 years ago

5

Daniel wants to do 312 practice problems to prepare for an exam. if he wants to do approximately the same number of problems eac

h day for 36 days, which best describes the number of problems that he needs each to do each day?

1 answer:

alexandr1967 [171]3 years ago

6 0

Answer:

Step-by-step explanation:

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25 000,000/10,000<br><br>No calculator

IRISSAK [1]

25 000,000/10,000

Cross out equal amounts of 0's from both numbers:

There are 4 0's in 10,000, so remove 4 0's from both numbers to get:

2500/1

Any number over 1 is that number:

2500/1 = 2500

5 0

3 years ago

There are 250 bricks used to build a wall that is 20 feet high how many bricks will be used to build a wall is 40 feet high?

Lady bird [3.3K]

Answer:

500 bricks.

Step-by-step explanation:

There are 250 bricks used to build a wall that is 20 feet high how many bricks will be used to build a wall is 40 feet high?

To solve e the above question, we have:

20 feet high = 250 bricks

40 feet high = x bricks

Cross Multiply

20 feet × x bricks = 40 feet × 250 bricks

x bricks = 40 feet × 250 bricks/20 feet

x bricks = 500 bricks

Therefore, 500 bricks will be used to build a wall is 40 feet high.

6 0

3 years ago

Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence. The angle

dem82 [27]

Answer:

229.23 feet.

Step-by-step explanation:

The pictorial representation of the problem is attached herewith.

Our goal is to determine the height, h of the tree in the right triangle given.

In Triangle BOH

$Tan 60^0=\dfrac{h}{x}\\h=xTan 60^0$

Similarly, In Triangle BOL

$Tan 50^0=\dfrac{h}{x+60}\\h=(x+60)Tan 50^0$

Equating the Value of h

$xTan 60^0=(x+60)Tan 50^0\\xTan 60^0=xTan 50^0+60Tan 50^0\\xTan 60^0-xTan 50^0=60Tan 50^0\\x(Tan 60^0-Tan 50^0)=60Tan 50^0\\x=\dfrac{60Tan 50^0}{Tan 60^0-Tan 50^0} ft$

Since we have found the value of x, we can now determine the height, h of the tree.

$h=\left(\dfrac{60Tan 50^0}{Tan 60^0-Tan 50^0}\right)\cdotTan 60^0\\h=229.23 feet$

The height of the tree is 229.23 feet.

5 0

3 years ago

Determine whether f(x) = 5x^2-20x+ 3 has a maximum or a minimum value and find that value.

Alex17521 [72]

Answer:

Answer in the attachment, as it wasn't letting me answer it, saying rude words.

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3 years ago

Which graph represents the function f(x) = ?

fomenos

1. the graph shows that it’s moving towards it.

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3 years ago

Read 2 more answers