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John1
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John1
Answers (167)
If you want the scale per meter, then if .5 m = 1mm 1m = ____mm multiply each side by 2 to get your answer
Are you supposed to be doing the test with or without help?
What has your teacher shown you about scales?
D. Is false because they both should have the same temps depending on distance from the equator.
I agree with 2 and 3. 1) should similar properties One column has the noble gases for example. They are all different sizes, but have similar properties.
80 + 10x = 275 -15x 25x = 355 x = number of weeks. Go back to the original 80 + 10x to find c.
I think you have the answer. The question said 5 means and didn't say 5 different sets of means. I can't think of another way that you can get from .125 to 8.
Consecutive odd have a difference of two. 1st = n 2nd = n + 2 3rd =n + 4 n(n + 4) = 9 + 12(n+2) n^2 + 4n = 9 + 12n + 24 n^2 -8n -33 = 0 (n -11)(n+3) = 0 n - 11 = 0 n + 3 = 0 n = 11 or n = -3 11, 13, 15 or -3,-1, 0 If you use these choices to do the check;
x = 3 - 4i x = 3 + 4i x = 5 x =5 two 5's because multiplicity 2 You always have to have the conjugate of an imaginary number. (x -(3-4i))(x-(3+4i)(x-5)(x-5) = 0 Easiest way is to multiply the first two and the second two factors. Then multiply those
If you multiply the first equation by 3, then you can save by using elimination. Your "y" value will eliminate and you can solve for x. Once you have "x", substitute it into the first equation and you will find y. Check your answers in both equations.
A = LW 120 = LW or 120/l = W P = 2L + 2W 46 = 2L + 2(120/L) multiply through by L 46L = 2L^2 + 240 2L^2 - 46L + 240 = 0 2(L^2 - 23L + 120) = 0 Factor and set each part equal to zero. Omit the negative value for x. Once you have the Length substitute into
You are subtracting. k^2 -4k -k + 3 +2 k^2 -5k + 5
divide 60/80 = 3/4 or .75 or 75%
Temp decreases
5/8 = x/(2x-10) x = perimeter of smaller 2x - 10 = perimeter of larger 8x = 10x -50 -2x = -50 x = 25 smaller 2x-10 2(25)-10 = 50 -10 or 40 for larger
The max area is always a square. You only need the fence for 3 sides, so divide 500/3 166.67 x 166.67 = max. area.
(x-2)(x+9) = 7 The difference of a positive number and 2 (x-2) multiplied times the sum of the number and 9 (x+9) x^2 +7x -18 = 7 x^2 +7x -25 = 0 Can you finish from here? You will get a positive and a negative result, but the problem calls for a positive
13.75(x)-.0765(x) -.10(x) -(.075)x = 875 13.4985(x) = 875 x = 64.82 or 65 hours
1/5 + 3/5 + 7/10 just add these I got the 3/5 for C-D by subtracting the 1/5 for A-B and 1/5 for B-C from the 1 for A-D.
For the first one, if you replace x and y with the values given, it won't check in the first equation. You can check in each equation or you could find the slope -3 - 1 divided by 1-3 -4/-2 = 2 = m Find b: -3 = (2)(1) + b b = -5 I agree with the second
Weight = mass x gravity 7633 = mass x 9.8 mass = 778.88 kg divide by 1/6 to get mass on the moon. 1/6
8 times 9 times 14 =1008 24 times 27 times 31 =19440 4/1008 = x/19440 77.14 minutes
If you do a google search, you should be able to find some good information.
Transfer to 3 e^kt = Ao/A multiply both sides by A then divide both sides by e^kt A = Ao / e^kt
y - y1 = m(x-x1) y - (-4) = -1/4(x -3) y + 4 = -1/4 x + 3/4 y = -1/4 x + 3/4 -16/4 y = -1/4 x - 13/4 This is in y = mx + b form in ax + by = c form 4y = -x -13 x + 4y = -13 You could also find the equation by just using y = mx + b -4 = -1/4 (3) + b -4 =
rust is oxidation and you need water for things to rust and this is a chemical reaction.
None at all This would be something like taking its temperature or measuring its length.
Multiple 3 1/3 times 35 divide that answer by 4/9 I get 262.5 or 263
A = (pi)r^2 C = 2(pi)r
Physical changes vs. Chemical Changes Chemical changes - a reaction does occur. Changing Hydrogen and Oxygen into water. Physical Change would be changing water into ice. It is still water just in a different form.
Multiply both sides by A then divide by kt A = Ao/kt I am assuming the * means multiplication.
tan = opposite/adjacent tan 58 = h/17 multiply 17 times the tan of 58 to find h.
I like "a" better than 'the' I like 4 better than 3 because I don't think the whole team would stand up. In a debate, I would say argument instead of speech.
x + y = 30000 x= 5000 + 2y 5000 + 2y + y = 30000 3y = 25000 find y by dividing by 3 The find x, by subtracting this value from 30000.
A = 1.20 B A/1.20 = B Divide by 1/1.20 and change the value to a percent.
Cannot see the formula. You can solve for A by using the same rules you use to solve equations with numbers.
Find .20 times 55 and then subtract that answer from 55 to find how many were present. Another way to look at the problem is that if 20% are absent, then 80% are present. Just multiply .80 times 55
Multiply all 3 numbers to get the volume.
yes
.03(30) + 3 = 3.90 for the first 30 divide 555/3.90 to see how many he must sell.
r + w =77 because he didn't answer 3 4r -1w = 57 5r =132 can you finish from here?
3) probably because it is set up for substitution. C works in the first equation, but check it in the second equation. I don't think it works there. 2x + 3(-3x) = 6 2x -6x = 6 can you finish if from here. make sure the answer works in both equations.
w = 1 then l =11 w = 2 then l = 10 w = 5 then l = 7 w = 10 then l = 2 These represent the points on the graph with w as the x-axis and l as the y -axis. You only need two pairs to make a line, but it is always best to use a 3rd point as a check.
To be sex linked... the sex is related to the outcome. They said all progeny... so I assume that it would be both male and female. since they all have red eyes, I would think it is B.
I agree with your answers.
40x +10(5.75 -x) = 185 distance = rate times time for each part of the trip 40x + 57.5 -10x = 185 30x = 185 - 57.5 can you finish from here? find x then find 5.75 -x to find the distance traveled - multiply those results by the speeds given above.
4x^5 y^6 z^2 5x^9 y^12 z^3 multiply the coefficients 20 keep the bases and add the exponents 20 x^14 y^18 x^5 This is the answer if I interpreted your problem correctly as you entered it above.
I think the environment is important also because if you had dry soil with no nutrients, that could affect the height of the plant and the overall health of the plant.
36 = 2x^2 -x 0 = 2x^2 -x - 36 (2x - 9)(x + 4 ) = 0 x = 9/2 x = -4 Answer cannot be negative. One side is 9/2, the other side is 8. To find the 3rd side, use c^2 = a^2 + b^2 c^2 = 81/4 + 64 c^2 = 81/4 + 256/4 c^2 = can you finish from here?
3 choices of ice cream times 4 toppings 12 choices
