MATHEMATICS HIGH SCHOOL

A lumberman stacks planks of wood, starting with 30 planks in a row. Each row he stacks has one less plank than the row below it. The last row he stacks has 15 planks. How many rows of planks has he stacked?12

15

16

18

Answers

Answer 1
Answer: I would say 15. If i am wrong i take full credit.

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Which decimal number is 17/22 equal to?

Answers

Answer with explanation:

A decimal number is terminating , if it's denominator is of the form 2^p \text{or} 2^p * 5^q \text{or} 5^q.

The fraction or Rational number ,

                                          (17)/(22)=(17)/(11* 2)

has both 2, and 11 in the denominator,it means this decimal number is non terminating repeating.

So, (17)/(22)=0.72272727......\n\n=0.72\bar{27}

Non terminating repeating decimal.
It is equal to 0.7727272727

If the triangles in the diagram are congruent, what is the value of x?

Answers

If shapes are congruent, then they are mathematically equal (same dimensions, angles etc.). So just locate where the angle x is on both triangles, it should have a value on or a calculable value on the other. If you provide us with the actual sheet I could walk you through it.

Answer:

Its True

Step-by-step explanation:

Hope this helped have a nice day

What is the intersection of plane STXW and SVUT?A. SV
B. ST
C. YZ
D. TX

Answers

B. ST is the intersection of plane STXW and SVUT.

Answer: B. ST.


Step-by-step explanation: The intersection of two planes, if exists, is a straight line. Since the planes STXW and SVUT have S and T as common points and we can always draw a straight line given any two points in a plane, so ST is the line joining the points S and T, and hence, it is the intersection of the two given planes.

Thus, the correct option is B. ST.


I don't understand what I'm supposed to do here. I have a test on this tomorrow so if you explain how to do it that would be great.

Answers

Here is a little tip for this: The unit above cancels the unit below. So in this problem you are asked to convert pounds to ounce. So your equation will look like this. 

ounce = 2.93 pounds ( (16 ounces)/(1 pounds) ) = 46.88
Your ratio should involve the conversion factor. So 16 and 1 is involved canceling A and D. Then, Notice that you started with poubls. Then the ratio must have pounds at the bottom to cancel the units leaving ounces. 

Which type of transformation does NOT result in a figure that is congruent to the original one?

Answers

Dilation never does.
Reflection often doesn't.

Harold spends 1/6 of the year on his aunts farm. He has done this for the last 8 years. What is the total amount of years, in simplest form , that Harold has spent on his aunts farm? Please explain to me step by step how this problem is solved! Thank you

Answers

First, multiply 1/6 times 8.  This gets you 8/6, which reduces to 4/3.  This means that she has spent 4/3 of a year on the farm.  Now if you'd like, you can simplify this to 1 1/3 years, depending on what your teacher wants.
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