# Do I solve this by multiplying 1.8645 by 1.14?

24,560 results-
## Chemistry

Do I solve this by multiplying 1.8645 by 1.14??The equation of your calibration curve from a spectrophotometry experiment was y = 1.8645x. Assuming your calibration curve is set up exactly like it was in lab (concentration in mM on the x axis and -
## Calculus

1/a+1 + 1/a-1 I solved this out by multiplying the (a+1) by (a-1) and multiplying (a-1) with (a+1) To get (a+1)(a-1) as the denominator. Then I did the same with the numerators and got this: 1(a-1) + 1(a+1)/(a+1)(a-1) And I got 2a/(a+1)(a-1) But still -
## Algebra

I am trying to solve the sytems of equations using the elimination method. 2x+4y=10 -3x+3y=-6 I tied multiplying the first equation by 2 and the second by 4. Then I tried multiplying the first equation by -3 and the secondy by 3. The book says the answers -
## Algebra 1

Solve the equation by multiplying each side by the least common denominator. 2/h-2 + 4/h+1 = 0 I know the answer is 5, but I do not know how to solve the problem. Please explain further. -
## Algebra

40 =15 x x - 20 This is a three part question>> first find the lcd method of solving this equations, and the second ones about cross-multiplying method to solve this equations ,The next question asked would the cross- multiplying method work for all -
## chemistry

I need to find how many grams phosphorus (P) are in 0.8645 g sample of MgNH4PO4 x 6H2O How many grams P2O5 can be calculated with this many grams of P What is the percent P (as P2O5) in this -
## Algebra HELP

Is there any difference between multiplying fractions and multiplying rational functions? What is it? -
## Math

4x-2y=7 3x+6y=9 Please help me solve this system by multiplying -
## Math help, anyone?

Solve by multiplying or dividing integers. 1. –4(3) 12 –12 2. 27 ÷ (–3) 9 –9 3. –40 ÷ 8 5 –5 4. 6(–5) 30 –30 5. 3(–3) 9 –9 6. –56 ÷ (–7) 8 –8 7. –7(–2)(2) 28 –28 8. 18 ÷ (–2) 9 –9 -
## math

solve: a+13 a-11 ---- = ---- 3 2 plz help...do we do this by croos multiplying??? -
## math

how is multiplying integers is like multiplying whole number? -
## ALGERBA

x-5 x-1 ----- = ----- -2 -3 Solve for x. I understand there is cross-multiplying involved. -
## algebra 1

I'm stuck on this problem. Can you help? -4x-9y=1 -x + 2y =-4 WHat is x and y? Two equations in two unknowns. Here is a quick way to solve them -4x - 9y = 1 4x - 8y = 16 (I got that my multiplying both side so the secind equation that you provided by -4) -
## Multiplying and Dividing Rational Expressions

solve 81x9/y4* x2/36x5y -
## trigonometry

(3^m)(5^(m+1))=12^(2m-1) not sure how to solve this but I think you use natural logs? I'm just stuck because the first two are multiplying and not adding and we didn't go over this -
## Science (Chemistry!)

I just do not understand ANYTHING about multiplying/dividing/adding/subtracting significant figures! For example, the problem is: Solve the following to the correct number of significant figures: (5.039)(0.0074) What am I supposed to do? Just multiply the -
## 08.02 Multiplying and Dividing Rational Expression

Can someone solve these for me?Can someone correct meif I didn't type these right 1.(m-2)/(m-5)*(m+5)/(m-2) 2.4(x+2)/5x*(6x^2)/2x 3.(25-x^2)/12*6/(5-x) 4.(a^2-9)/a^2*(a^2-3a)/(a^2+a-12) 5.(5x-5)/(16)/(x-1)/6 6.(6-3x)/(5)/(4x-8)/25 7.(x^2-9)/(4X+12)/(x-3)/6 -
## Multiplying and Dividing Rational Expressions

Can someone solve these for me?Can someone correct meif I didn't type these right (m-2)/(m-5)*(m+5)/(m-2) 4(x+2)/5x*(6x^2)/2x (5x-5)/(16)/(x-1)/6 (6-3x)/(5)/(4x-8)/25 (x^2-9)/(4X+12)/(x-3)/6 (x^2+13x+12)/(x+2)/(x+1) or can someone do a few for me -
## Math help please

Show that one and only one out of n,n+4,n+8,n+12,n+16 is divisible by 5,where n is any positive integer. A two digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the differences of the digits -
## 5th grade math (dividing fractions)

Hi.. I need help figuring out this problem, sovling for x: 3 divided by x/9 = 5 and 2/5 I was able to solve: x divided by 3/4 = 6 by multiplying 6 x 3/4 = 4 1/2. Just not sure how to solve the first problem. If I change 5 2/5 into mixed number,I still -
## Algebra

This question has been posted before, unfortunately, I have been out of high school for over 40 years and out of college for more than 20. I am trying to help another old relic enrolled in distance learning (via long distance phone calls) but neither of us -
## Ratios and proportions

RATIOS AND PROPORTIONS x 3 - = - 4 2 The boards don't post spacing as we would wish. I suppose the problem is x/4 = 3/2. Multiply left and right sides by 4. That will "cancel" the 4 in the denominator of the left side. Now multiply both sides by 2. That -
## Algebra

please solve x+5y=10 -2x-10y=-20 Since the second equation can be obtained from the first (by multiplying both sides by -2), they are not independent and there is no unique solution. There are an infinite number of x,y combinations that are solutions. -
## physics

How is entropy calculated in the general case? Answer a. By determining the amount of heat absorbed. b. By multiplying P times Î”V and summing over small increments. c. By summing over momenta and positions. d. By summing over probabilities of -
## Math

I need help not sure if I'm doing this correctly. Parts of parts: Find each of the following parts of parts without drawing a diagram for each problem explained clearly A) 2/3 of 2/7 I think it's 4/15 because your multiplying. B) 6/11 × 2/7 I think it's -
## math

Review example 2 How does the author determine what the? Example 2. Translate. The first row of the table and the fourth sentence of the problem tell us that a total of 63 pupae was received. Thus we have one equation: p+q=63 Since each pupa of morpho -
## math

Factorial notation problem. Please help? Hi, I am stuck on this maths problem. Solve for n: (n+2)!/(n)! =110. I get as far as (n+2)(n+1) = 110. When I multiply it out I get n^2,3n,2 = 110. There is only one example similar to this in my book and it used a -
## Chemistry

How can Ag2Cro4 have a four on the O? Ag has a charge of two, so multiplying it by 2 would give me two, but multiplying Cr, with a charge of two (one of its few choices) by four would give me eight. How does that balance? Thank you so muh for checking on -
## Physics/Math help please

Two particles with positive charges q1 and q2 are separated by a distance s. I got up to here: (kq1)/x^2 = (kq2)/(s-x)^2 I now have to solve for x by cross multiplying and using the quadratic equation but I can't seem to isolate x without it being canceled -
## math/multiplying decimals

I know how to multiply ,but i have to use it in a model. 0.2 x 0.7 the answer is 1.4 show my how to use a model to solve. -
## Algebra 2(check) cont..

1)solve the inequality -3(r-11)+15>_9 my answer = r<_13 2)solve the inequality -2<4z+10<_12 my answer = -3<z<_1/2 3)solve the inequality 2x-5<_10 or 33-4x<5 my answer is x<_15/2 or <7 4)solve the inequality 3(absolute bars -
## math

find derivative using limit definition: f(x) = x - sqrt(x) so f'(x) = lim h->0 [f(x+h) - f(x)]/h but I keep trying to solve by multiplying by the conjugate but I can't figure it out..there's nothing that can be cancelled or anything and I can't get the -
## Inequalities

Write two different inequalities that you can solve by adding 5 and multiplying by -3. -
## math

how many side and angles does a trapezoid angle, hexagon, and pentagon have? solve each equation: 13 + y = -3, 3y + 8=3, y over 3= -9 need help with + & - rules for adding whole numbers, decimals, fractions and integers ( do not understand) and rule for -
## pre cal

Use factoring to solve the polynomial equation: HINT: Try multiplying each side of the equation by a number to eliminate the denominators. x2/162 + X/18 + 1/9 =0 -
## calc

find derivative using limit definition: f(x) = x - sqrt(x) so f'(x) = lim h->0 [f(x+h) - f(x)]/h but I keep trying to solve by multiplying by the conjugate but I can't figure it out..there's nothing that can be cancelled or anything and I can't get the -
## Math

In a mixed number or fraction problem, you have dividing and multiplying. Now if you were given a list of multiplying and dividing mixed number and fraction word problems, how can you tell the difference between multipling and divinding word problems. It -
## MATH PLEASE CHECK IT!!2

m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) = -1 To solve for m: -
## Mathematics question

It was...the subject is FOILs,I thought we needed to put what we were doing in the subject... Subject area needs to be properly stated. This is not FOIL. That is multiplying of two binaries as in (a+b)(c+d) Here you are to factor. take the first: -
## math ,hep, plz

can someone help explain this for me please... Problem #1 What values for x must be excluded in the following fraction? (x+5)/(-1) Problem #2 what values for x must be excluded in the following fraction? (x-3)/((4x-5)(x+10)) When working with fractions, -
## algebra2

1/3 - 5/6 = 1/X SOLVE 1/3 - 5/6 = 1/X Let's remove the denominators by multiplying by 12X 12X*(1/3) - 12X*(5/6) = 12X*(1/X) Clear the fractions. 4X - 10X = 12 -6X=12 multipy by -1 6X=-12 Divide both sides by 6 6X/6 = -12/6 X = -2 Check my work. -
## math-calculus

so with this one i do the same thing multiplying what inside absolute value bracket bar with what outside? |2x-8|-2 = 4x so that start me off as -4x+16 = 4x or 4x-16 = 4x. solve equation |x^2-2x-6| = 4 this nothing to do with factoring right? i just add -
## Algebra

Solve for s: h=(square root of 3)times s/2 and solve for h V= (pi)r squared h / 3 Solve for s: h=(square root of 3)times s/2 Multiply both sides by 2. 2h = (sqrt 3)*s*2/2 which cancels the 2 on the right. 2h = (sqrt 3)*s Now divide the right side by -
## Math

I need help with this question: Estimate the product by rounding to the nearest one 6.38 times 18.716 I said on my assignment 120 and my teacher marked it wrong. She said it's 114, and I donot see how it's 114. Any input, would certainly be welcome. Thank -
## chemistry

Calculate the pH of concentrated hydrochloric acid if this solution is 24.8 % HCl by weight and has a density of 1.16 g/mL. a. ) -0.77 b. ) -0.83 c. ) -0.90 d. ) -0.98 e. ) -1.01 i got c) by converting density into concentration (mol/L) and then, -
## very basic algebra

I was told long ago way back when that when you have something like this -x = 7 you solve for x by doing the following (-x = 7)- x = -7 but now that I think about it your not actually multiplying by negative one what is actually happening is this right??? -
## math

Tarique drew this model for a problem : 2/5 2/5 2/5 2/5 2/5 2/5 (5 2/5 ) write 2 problems that can be solved using the model one of the problems should involve multiplying a whole number by a fraction. The other should involve multiplying a fraction by a -
## pre algebra

14 is what percent of 200 100/200 =x/14 read as 100% is to 200 as x% is to 14 solve for x by cross multiplying x=7 check it .07 times 200 = 14 vola! -
## math

how do you solve for zero for this equation? (2/3)X -12 -(20/X^2) (2/3)X -12 -(20/X^2) = 0 --> 2/3 X^3 - 12 X^2 - 20 = 0 ---> X^3 - 18 X^2 - 30 = 0 Numerical solution: You see that for X = 18 the first and second term cancel, so the left hand side is -
## Math

Well in school we were reviewing percents, and one of the main things being discussed was how to convert between fractions, decimals, and percents. However I didn't understand how she explained converting fractions to decimals. She said that on the test we -
## Math - Another question to check, sorry... =/

7. 72 is what percent of 480? Write and solve an equation to solve the problem. Step 1. First, I will write out the equation. part = percent x whole Step 2. Now, fill in the parts… 72 = p x 480 Step 3. I will simply divide 72 by 480, which will be 0.15. -
## inequality

(x-4)/(2x+4) is greater than or equal to 1. How do i express solutions to inequalities in interval notation without using the calculator? please help. (x-4)/(2x+4) >=1 multiplying by 2x+4 1) when (2x+4) is +, x-4>=2x+4 or x-2x>=8 -x>=8 x<=-8 -
## Chemistry

I'm not really sure how to do this. I've tried many ways and I can't get the right answer of 0.0569 mol/L H3PO4 100.0 mL of a solution containing 2.55g of potassium hydroxide is mixed with 100.0 mL of a 1.50 mol/L phosphoric acid solution. Will the -
## physics multiplying vectors

n the product F = qv · B , take q = 4, = 2.0i + 4.0j + 6.0k and = 136i -176j + 72k. What then is in unit-vector notation if Bx = By? ~~may i get some assistance in this problem? so far.. i tried this.. 136i-176j+72k = 4(2.0i+4.0j+6.0k)(B) 136i-176j+72k = -
## algebra

I need help on multiplying and dividing functions. I've seen videos and read and read examples but I still don't get it. I did the last problem which looked like an example I had read but I still don't know if I did it right: f(x)=2x+1 g(x)=3X+2 F(3)/g(2)= -
## Math

How do you divide fractions??? Cross multiply: For example, 4/5 divided by 6/7 would be 28/30 or 14/15. 3/4 divided by 2/3 would be 9/8 or 1 and 1/8 Actually, the word cross multiply is a misnomer. What is being done is multiplying by the reciprocal for -
## Algebra 1

REINY, Thank you for your answer and the answer is obviously correct when you go back and do the multiplying ......however , I do not just want the answer, I desperately wish to understand from start to finish how you got the answer. I am sorry if I seem -
## computer science

I have a project due May 17. I have to create a math game using a GUI/Menu. The game has to give the user the option to chosse between which subject they would like to work on: adding, subtracting, dividing, multiplying integers; adding, subtracting, -
## HELP ON MATH!!!!

1)There are 18 blue balloons at Janice’s birthday party, and 1/3 of them have a prize in them. How many balloons have a prize? 2) Kyle is making Strawberry Shortcake. He cut some strawberries and put them in a measuring cup and saw he had 1 and 1/2 cups -
## Math / Fractions

I am having a hard time figuring out how to solve these fraction word problems. For example: A patch of dirt needs 3 5/6 cubic yards (yd3) of concrete to cover it. If Nick decides to cover only 3/4 of the dirt . how much sod does he need. How do I work -
## Algebra word problem

I have no idea how to start this problem can some one explain to me am i suppose to divid 1/10 by 1/4 which i get 4 but i feel i am missing some thing am i am Fungicides account for 1/10 of the pesticides used in the United States. Insecticides account for -
## Math

Solve this equation algebraically: (1-sin x)/cos x = cos x/(1+sin x) --- I know the answer is an identity, and when graphed, it looks like cot x. I just don't know how to get there. I tried multiplying each side by its conjugate, but I still feel stuck. -
## second grade

I am having trouble, I have a question I think I got the answer because I kept multiplying and dividing, but I have to show my work but when i try, my answer is not the same. The question is A traffic light at one intersection changes every 28 seconds and -
## math

simplify: x^(3/2)(x + x^(5/2) - x^2) add exponents when multiplying. For instance, the first term above x^3/2 * x=x^3/2 * x^2/2=x^5/2 add exponents when multiplying. For instance, the first term above x^3/2 * x=x^3/2 * x^2/2=x^5/2 ok, so would the answer -
## calculus-integration

integrate -2/xln^4(x)...plz help me..give me an idea on how to start..plz The derivative of the ln(x) function is 1/x and this is multiplying the ln^4(x). You can thus write the integral as: -2 * 1/5 ln^5(x) + constant. is that the answer? wut about the x -
## math,correction

can someone correct these for me i'll appreciate it thank. dirctions: solve 3x-7=2x+8 my answer: x = 15 directions: solve 2/5x=-10 my answer: x = -25 Directions: solve -3(x+1)=2(x-8)+3 my answer: x= -3.2 1 looks ok. Show your work on 2 and 3 and we can -
## Math

We have an important chemsitry test due and I want to make sure that I do not mess up on my algebra. I am dealing with the integrated rate law, but my question is purely algebraically in nature. I hope, somebody can help me. 1) ln(A) = -kt+ln(B) solve for -
## Math

A rectangular school banner has a length of 36 inches and a width of 52 inches. A sign is made that is similar to the school banner and has a length of 22 inches. What is the ratio of the area of the school banner to the area of the sign? What is the ratio -
## MATH PLEASE CHECK IT!!2

sqrt2/sqrt10 here is what I got: sqrt (2/10)= sqrt (1/5) sqrt 0.2 * I don't think that it is right but pleasee check it.Thanks Yes, that is one way you could do it, then simplify further by taking the square root of 0.2, but you are probably supposed to -
## math,algebra

Use the five properties of exponents to simplify each of the following expressions (y^5)^3(y^3)^2 divided by (y^4)^4 can someone show me how to solve these types of problems (y^5)^3= y^15 multiply the powers (y^3)^2=y^6 multiply the powers again as you -
## Multiplying

(81a^2/2a^2-4a+2) * (2a-2/9a) Please help. Thanks -
## multiplying

15xy (x=y) -
## Chemistry

Please help! I have spent hours trying to work these three problems. How many grams of solid barium sulfate form when 27.1 mL of 0.160 M barium chloride reacts with 53.4 mL of 0.065 M sodium sulfate? Aqueous sodium chloride forms also. I have converted the -
## exponential and logarithmic graphs question

hi, i desperately need help solving this question: Find the values of A and k if the general equation of the graph shown is y=Ae^kx where the graph goes through the points (-1,-4) and (-2,-10) do i solve it using simultaneous equations? because i have -
## help,math

can some set the equation up for me. Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air? i thought it was -
## Multiplying and Dividing Rational Expressions

I will be forever thankfulif someone can solve these for me.Hopefully I typed them correctly. For instance,the first one,what I'm looking at is m-2over m-5 and that's multiplied times m+5 over m-2 1.m-2/m-5*m+5/m-2 2.4(x+2)/5x*6x^2/2x 3.25-x^2/25*6/5-x -
## Probability (Pre-Calculus)

A class is given a list of eight study problems from which five will be part of an upcoming exam. If a given student knows how to solve six of these problems, find the probability that the student will be able to answer: (a) all five questions on the exam. -
## Multiplying Decimals

14.83x16.7 -
## multiplying fractions

5/7 * 9/10 = 9/14 Should my answer be 45/70 or 9/14? -
## math

is there any way to get the answer of 13 and 54 by multiplying? thank you very much -
## MULtiplying Binomials

WHATS (3N+2)(N+3) -
## ALGEBRA

with multiplying this: 9y^2-9)(8y^2-9y+3) I have: 8y^2(y^2-9)-9y(y^2-9)+3(y^-9) THEN 8y^2*y^2-9-9y*y^2-9+3*y^2-9.... THEN 8y^8 - 6 ??? I think that I am lost -
## math

How is percent composition calculated? A. Dividing the mass of each element in the compound by the total mass of the compound and then dividing by 100% B. Dividing the mass of each element in the compound by the total mass of the compound and then -
## math,correction please..

(x)/(x-2) - (x+1)/(x) = (8)/(x^2-2x) I keep getting x = 6 can someone show me how you guys are getting x = -10 The lowest commond denominator is x(x-2) x/x *(x)/(x-2) - (x+1)/(x) *(x-2)/(x-2)=(8)/x(x-2) multiplying both sides by the common denominator.. -
## 8th grade

How do you do (3x-4)^2??? This is multiplying polynomials... -
## multiplying decimals

how do you multiply 2.08 times 0.9 -
## algebra

Factor - check by multiplying Is this right? x^2-6x = x^2(x-6)??? -
## 9th grade

Multiplying Binomials (b-6)*(b+3) -
## math

multiplying fractions and whole numbers 5/6 x 84 = -
## math

multiplying fractions and whole numbers 72 x 5/8 = -
## algebra

how to clearing decimals multiplying by 10 -
## Math

Solving systems by Multiplying. 4x-2y=7 3x+6y=9 -
## math-multiplying

3/1 * (6/5) = 3 and 3/5 is this the correct answer? -
## algebra

multiplying square roots -
## math please help

multiplying a number by 6/4 is the same as dividing it by? is it 3/2 or 4/3 -
## Algebra

I need help multiplying rational expressions.. x-2/x+3 x 4x+12/6 first I took the four out from 4x +12/6 so I got x-2/x+3 x 4(x+3)/6 but now I'm not sure what to do? -
## 10th grade

please so by multiplying binomials (x+6)(8x-x) -
## 7th grade math

Can you check the following? 1. (-1/3)x = -5 multiply both sides by -3 because dividing by fraction is same as multiplying by its reciprocal, right? Ans: -5(-3)= 15 2. x - (-3) = -8 + (-3) + (-3) x = -11 3. The signup fee to join Flexible Fitness Gym is -
## Math, Pleas help.

Please help me with the questions provided below; I have studied in Math, but I want to make sure my answers are accurate to ace. 1.) Solve the proportion. 5/8= y/40. A.) 25 B.) 13 C.) 11 D.) 10 I chose answer choice A for number one since 8x5=40, and -
## math

actually, in a addition to the question i posted a few minutes ago, can someone please help me with a few actual specific questions? thanks so much i'm very confused and i've been working on these all day. *Literal Equations* ~solve for x ax + bx = 8ab