MATHEMATICS MIDDLE SCHOOL

What is the period of the sin graph y= -2sin(x-(π/4))+1

Answers

Answer 1

Answer:

Answer:

Amplitude:

Period:

Phase Shift:

(

to the right)

Vertical Shift:

Step-by-step explanation:

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one pound of horse hair is divided into pulls to make horse hair belts one pull weighs about 0.011 ounces. how many pulls could be made from 6 pounds of horsehair

Answers

First multiply 6 by 16 to figure out how many oz it is (98). Then divide by .011 = 8,727(roughly). 6lbs could make roughly 8,727 pulls :)

A class made equal teams of 5 for basketball,and equal teams of 6 for volleyball.Each student in the class was on a team.How many students might be in the class

Answers

30 students are in the classssroom

the answer should be 30.....................

A newborn baby's weight increased by 50% in one month. If the baby weighed 8 pounds at birth, how much did it weigh one month later? Also can you please explain the process on how to do this, Thanks!4 lb
10 lb
12 lb
16 lb

Answers

Answer:

12 lb

Step-by-step explanation:

The baby weighed 8 pounds at birth which means this was the babys original weight. If the baby's weight increased by 50%, it will be 50% of 8 pounds plus the 8 pounds. The percentage 50% iin fraction form is:

$50/100$

50% of 8 pounds is:

$=(50/100)\cdot{8}=400/100=4$

To get the final weight, we must add 4 to the original weight of 8 pound:

$4+8=12$

It would weigh 12 lbs because 50% of 8 is 4 and 4 + 8 = 12 lbs.

A person invests 7500 dollars in a bank. The bank pays 6% interest compounded semi-annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 16200 dollars?

Answers

Answer:

$13.0\ years$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+(r)/(n))^(nt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=?\ years\n P=\$7,500\n r=0.06\nn=2\n A=\$16,200$

substitute in the formula above

$16,200=7,500(1+(0.06)/(2))^(2t)$

$(2.16)=(1.03)^(2t)$

Apply log both sides

$log(2.16)=(2t)log(1.03)$

$t=log(2.16)/[(2)log(1.03)]$

$t=13.0\ years$

Joey is asked to name a quadrilateral that is also a rhombus.What should be his answer

Answers

Answer: Joey's answer should be a square.

Step-by-step explanation: Given that Joey is asked to name a quadrilateral which is also a rhombus. We are to find Joey's answer.

Rhombus : a quadrilateral having all the four sides equal and diagonals bisect each other perpendicularly.

We know that the only quadrilateral having four equal sides and diagonals bisecting each other perpendicularly is a SQUARE.

Also, a square has all angles as right-angles in addition.

Therefore, Joey's answer should be a square.

His answer should be a square because a square is a parallelogram with four similar sides and four right angles. A quadrilateral is a square if its a rhombus and/or rectangle.

Who do you write 23 3/8 as a decimal