# Posts by lea

Total # Posts: 232

**Statistics**

Test the significance of the correlation coefficient r at a=0.05 for the data below. X values 59, 65, 73, 80, 89 Y values 97, 102, 110, 117, 125 A) Accept p=0 because 60.81<3.18 B) Reject p=0 because 61.13>3.18 C) Accept p=0 because 61.13<2.78 D) Reject p=0 because 60...

**Statistics**

The table list the sugar content of two types of apples from three different orchards. At a=0.05, test the claim that the sugar content of the apples and the orchard where they were grown are not related. Sugar Content------Orchard 1----- Orchard 2------Orchard 3 Apple type1...

**Math**

How do I simplify this? :l 4(x+y)]/(5x^2y^3) ÷ (-2x-2y)/10

**math**

The measure of one angle is 30 degrees less than one-third the measure of its supplement. Find the two angles.

**math**

The measure of one angle is 15 degrees more than half the measure of its complement. Find the measure of the two angles.

**math**

The average airspeed of a single-engine aircraft is 150 milesper hour. If the aircraft flew the same distance in two hours with the wind as it flew in 3 hours against the wind, what was the effect of the wind on the plane? What are the equations? What is wind speed?

**math**

A boat is rowed down a river a distance of 16 miles in 2 hours and it is rowed upstream the same distance in 8 hours. Let r represent the rate of the boat in still water in miles per hour, and let c represent the rate of the stream in miles per hour. Write the equation. What ...

**math**

The length of a rectangle is 4 times the width. The perimeter is 50cm. Find the length and width. Write the equations. What is the length and width?

**math**

A rectangle has a length of 4x and a width of 4x-2. Its perimeter is 12 inches. Find the length and width. Write the equations. What is the length and width?

**math**

Eighty people are separated into 2 groups. The first group is 8 less than 3 times as large as the second. Find the number of people in each group.

**algebra 2**

The larger of two numbers in 8 times the smaller. The difference between them is 42. Find the numbers. Write the equations. Find the numbers

**Chemistry**

What compounds can be formed by the reaction of K2SO4 and BaCI2?

**Precalculus**

1.Solve 5^(2x) -4(5^x)=12 2. Solve Log[8](log[8]x)=0

**Math**

Verify if this is the correct form please. Given the parent function f(x)=log[10]x, state the equation of the function that results from a vertical stretch by a factor of 2/5, a horizontal stretch by a factor of 3/4, a reflection in the y-axis, a horizontal translation 2 units...

**Trig**

Solve 5^2x -4(5^x)=12

**math**

What is 4.20 multiplied by 10^-4 in standard form.

**Math**

The answer is not 23 or 365.

**Math**

Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?

**physics**

a 50 kg person has a weight of 80 N on the surface of the moon what is the acceleration due to gravity

**translation**

how can say you can use forceps during a science inquiry to pick up a small object place it under the microscope it will appear larger in spanich please

**ruler**

how can say you can use forceps during a science inquiry to pick up a small object place it under the microscope it will appear larger in spanich please

**inglish and spanish**

translate spanish to inglish

**Math**

If sales volume exceeds the break-even point, the firm sill experience a)an operating loss,b)an operating profit c)an increase in plant and equipment d)an increase in stock price

**geometry**

A cylindrical tin can holding 2 gal.has its height equal to the diameter of its base.Another cylindrical tin can with the same capacity has its height equal to twice the diameter of its base. Find the ratio of the amount of tin required for making the two cans with covers.. ...

**math**

i need help with square roots?

**algebra**

what is 5 on the square root of 2m divied by 5 on the square root of 3m cubed

**math**

3.3191489 rounded 3.32

**kindergarten**

HAVE CHILD COUNT THE SEA ANIMALS AND THEN DRAW COUNTERS TO SHOW HOW MANY SEA ANIMALS

**algebra**

factor out the GCF 6x^2-10x

**Math**

find the prime factorization of 120.

**Algebra**

We're doing multi-step equations, and I need help on how to check my answers? I knew how to do it on two-step equations, but now it's kind of confusing? for example, there's a problem, 6a-1 over 7 = 1 My answer was 4/3. We're supposed to insert our answer in ...

**phsyics**

23 n

**algebra 2**

y=ln(2x-12)

**algebra 2**

Solve for x: (3x+5)/((x-1)(x^4+7))

**Social Studies**

I'm doing a Medieval ABC book, and I need to draw an illustration for each word. How can I illustrate "zeal"? Also I hope I picked the correct school subject..?

**Social Studies**

I'm doing an ABC book for Medieval words, and I need to do one for the letter Z. I found the word Zupan, but I'm not entirely sure on the definition, and how I can illustrate it. So can anyone give me some help on the word Zupan, or suggest any other Medieval words ...

**trig..**

ctgx+cosx=1+ctgx*cosx

**Social Studies**

I'm doing an ABC book with words from the Medieval Ages, and I can't find any word that starts with X. I've been searching online, but I haven't found any.. Help?

**Social Studies**

I'm doing an ABC book for Medieval terms, and I have to draw a picture for each term. What could I draw for the Orthodox Church?

**Social Studies**

Nevermind! I got it.

**Social Studies**

Can anyone help me with a definition for Jewish people during the middle ages?

**Social Studies**

Or if you can't help, with this question, can anyone show me some items/people/things that start with the letter E that's from the Medieval times?

**Social Studies**

This is kind of a weird question, but, I need to do a Medieval ABC book, and right now I'm at E. And I need to draw a picture for the word. My word is "excommunication". But I'm not sure how I could draw a picture of that?

**Math**

I don't get what the problem is asking? "Which of the following shows the next step using the least common denominator simplify 7/8 - 5/6?" there's 4 answers, A. (7/8 x 3/3) - (5/6 x 4/4) B. (7/8 x 4/4) - (5/6 x 3/3) C. (7/8 x 5/5) - (5/6 x 7/7) d. (7/8 x 7/7...

**science**

how does newton's laws apply to a toothpicks bridge

**business**

Which of the following selections contains a fragment? If none of the selections contains a fragment, select "Correct." (Points: 5) To prepare for the 10K race. Eric eliminated greasy foods from his diet and began eating fresh fruits and vegetables. He also began ...

**accounting**

Control activities and monitoring are one and the same. T or F

**Math**

Sorry! I have another problem! 4-2y=4y I always get a bit confused if there's a minus sign in front of a number. The book says the answer is 2/3 So what I first did was. 4-2y=4y 4=6y which is 1 1/2, and wrong.?

**Math**

How do you solve 4-5x=3+x? I've been able to do other problems like this, but I can't get this one. The way I did it, was like 4-5x=3+x 4-4x=3 but then I get stuck? the book says it's 1/6

**math**

I need help forming an equation for this word problem.. A long distance phone company charges $0.027 per minute and a $2 monthly fee. Another long distance phone company charges $0.035 per minute with no monthly fee. Find the number of minutes for which the charges for both ...

**math**

a photo 5 inches wide and 7 inches long is enlarged. The sides of the new photo are in proportion to the original. The new photo is 14 inches wide. how do i find the length

**math**

I need help with this problem. If someone can do it step by step that would be great. I can't get the problem correct? I keep getting 26. 3 - 1/8a = 1/4 the book says it's 22.

**Math**

So lately in class, we've been doing stuff on finding the variables in equations. I've been able to understand it all except for these two problems. T+4/13=12/39 So I multiplied 4/13 times 3, to make it have the same denominator. so I have 12/39. but I'm now ...

**Fundamentals of business law**

I need to figure out ways that the SLCO can argue that payments were made didn't fit the defintion that was used by the FCPA

**Fundamentals of business law**

You work for the city of Bigtown's legal department. Bigtown has been trying for years to attract more convention business, but it has been unsuccessful to date. The new mayor was voted in on the tagline, "I'll make Bigtown the place to see and be seen." It&#...

**physics**

Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of 5400km.

**Physics**

Calculate the effective value of g, the acceleration of gravity, at 6400m , above the Earth's surface. Calculate the effective value of g , the acceleration of gravity, at 6200km , above the Earth's surface

**Algebra 1A**

solve for the indicated letter b=a+d for a= the solution is a= b. is this correct? thanks

**Algebra 1A**

Help Please! multiply 5/7(-35)= 0 is this correct? if not will you show me please? thanks

**Algebra 1A**

multiply 5/7(b-35)=o is this correct? thanks

**Algebra 1A**

translate to an algebraic expression 32 more than n, translation is > is this correct? thanks

**Algebra 1A**

find the opposite, or additive inverse of -57= +57 is this correct? if not can you please show me the answer? thanks

**Algebra 1A**

multiply 8x(-2.3)= this is the problem. I haven't been able to figure it out my answer was 18.4 help please

**algebra 1A**

8X(-2.3)=-18.4=2 IS THIS CORRECT? THANKS

**a**

8x(-2.3)=-18.4=2 is this the correct answer? thanks

**Algebra 1A**

help multiply 8x(-2.3)=-18.4 is this correct? thanks

**Algebra 1A**

translate to an algebraic expression. 3 divided by y. the translation is =3/x=1 & y=3 is this correct? thanks

**Algebra 1A**

in 1993 the elevation of an offshore well was -2990ft. in 1998, a new well was 370ft. deeper. what was the elveation of the new well in 1998. in 1998 the elevation of the new well was -3360. is this correct? thanks

**Algebra 1A**

multiply (-9)(11)= 99 is this correct

**Algebra 1A**

find the decimal notation for fraction-7/13 the decimal notation for the fraction round to the nearest hundredth. help

**Algebra 1A**

5x-1=39 the solution is x= is the answer 24? thanks

**Algebra 1A**

I need help please. you have recently found a location for your bakery & have begun implementing the first phases of your business pla. Your buget consists of an $80,000 loan from your family& a $ 38,250 small business loan. these loans must be repaid in full within 10 years. ...

**HCR 240**

Explain why in terms of job performance & efficiency knowing medical billing terms is critical for working in the health care field. can someone help me? thank you

**Orgo**

The solubility of compound A in ethanol is .8g per 100ml at 0degreesC and 5.0g per 100ml at 78degreesC. What is the minimum amount of ethanol needed to recrystallize a 12.0g sample of compound A? How much would be lost in the recrystallization, that is, would remain in the ...

**algebra 1A**

Help please! Simplify -4^2+9 -4^2+9= 12 is this correct? if not can you show me what the correct answer? thank you

**algebra 1A**

HELP ME.simplify{[4(z-4)+18]-[3(2z-2)+4]} 6{[4(z-4)+18]-[3(2z-2)+4]} simplify your answer. can someone help me please I have no clue. thank you

**algebra 1A**

evaluate: (-1)^7 (-1)^7= simplify your answer. is this correct -(1)? thank you

**algebra 1A**

find - x when x = 39/41. the answer is - x. simplify your answer. type a fraction. is this correct x= 39/41?

**algebra 1A**

help please! the deepest point of the gulf of mexico lies approximately 12,4000 feet below sea level what is the integer that best expresses the given number. type a negative number with a negative sign, or type a positive number with no sign. is either one of these answers ...

**algebra 1A**

translate to an algebraic expression. the product of 25% and some number. the translation is ? type the percentage as a decimal. use y to represent some number. is this correct y*0.25

**algebra 1A**

translate into an algebraic expression. use x and y for variables. the sum of three times a number plus five times another number. the translation is. is any one of these correct y+3=8 or 3+8=8 please help. thanks

**algebra 1A**

translate to an algebraic expression 22 less than y translation is. is this correct b-48=43?

**algebra 1A**

help please. translate to an algebraic expression 48 less than b. the translation is. i have no clue Thanks

**algebra 1A**

a driver who drives at a speed of r mph for t hr will travel a distance d mi given by d= rtmi. how far will a driver travel at a speed of 62mph for 7hrs. The distance traveled is 434miles correct? thanks

**algebra 1A**

the area A of a triangle with base b and height is given by A=1/2h. find the area when b=16m(meters) and h=26. the area is 416m^2 is this correct? if not can you give me some direction? thanks

**algebra 1A**

help please. a local community college costs $550 to enroll in morning section of an algebra course. if the variable n stands for the number of students who enroll. then 550n stands for the total amount of money collected for this course. how much is collected if 34 students ...

**algebra 1A**

on the order of operation, do I not put these answers as well as do the grouping? what about evaluate all powers before other operation? multiply & divide in order from left to right. add & subtract in order from left to right. Are thses correct?

**algebra 1A**

could someone write me an expression using three of the following? 1. multiplication, addition & subtraction. thank you

**math 116 algebra 1A**

can someon help please. why is it important that you follow the steps rather than solve the problem from left to right?I have no clue. this is my first time taking algebra

**Math algebra 1A**

Can someone tell me if these answers are correct please? 1. what are the steps of the order of operation? do all operations within grouping symbol first. evaluate all powers before other operations. multiply & divide in order from left to right. add & subtract in order from ...

**Algebra**

could someone help me please this is my first time with algebra. what is the difference between an equation & an expression? thanks

**psy 210**

case study: how might michael's situation illustrate adjument? how might this situation become an opportunity for personal growth? could this be correct? michael's situation illustrating adjustment could be that he faces his situations face on and know that if he put ...

**math 115**

evaluate |10|+|-2| = 8 is this correct?

**math 115**

1. evaluate exactly square root 100- square root64 = 10- 8 = 2 is this correct? 2. evaluate the expression |-5 +3|= 2 is this correct? 3. evaluate the expression. (-6)^2 -(16/2)= (-6)^2= 36 is this correct? thank you

**math 115**

1.eleven applications for a certain position had the following ages. 32, 33, 25, 36, 48, 51, 28, 23, 54, 52, 45. sort them out in ascending order. 23, 25, 32, 33, 36, 45, 48, 51, 54, I picked 33 for the middle number to get the median is it correct? 2.clay is building a pen ...

**math 115**

1. sabrina has the following math quiz scores. 19, 24, 25, 17, 13, & 18. find her mean score, to the nearest tenth if necessary.= 13 is this correct? 2. eleven applications for a certain position had the following ages. 32, 33 ,25, 36, 48, 51, 28, 23, 54, 52, 45. what was the ...

**math 115**

1. find the square root 121= 11 11*11=121 is this correct? 2.carlos works 8.25h. and receives $102.30 pay. what will he receive at the rate if he worked 14h?= carlos rate of pay is $12.40 per h. $173.60 is this correct? 3. write 0.672 as a percent. 67.0% is this correct? 3. ...

**math 115**

1. divide26/634=24r10 is this correct? 2. subtract. 104.567-78.658= 25.909 is this correct? 3.identify the rate, base and amount in the following statement. 30% of 350 =105 350x.3=105 rate=30% base=350 amount=105. is this correct? 4. what is 60% of 250? =150. is this correct? ...

**math 115**

1. perform the indicated addition. 2,580+675+36= 3,291 is this correct? 2. perform the indicated subtraction. 44,377-25,058=19,319 is this correct? 3.312x371= 3,432 is this correct?

**math 115**

1. determine whether the pair of fractions is proportional 4/6=8/12 yes, is this correct/ 2. find the unit price for the item.$54.70 for 5 shirts $10.94 unit. is this correct?