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zimovet [89]
2 years ago
12

Can y'all help me or give me the answers by 6:00 am thx

Mathematics
1 answer:
enot [183]2 years ago
5 0
What are the problems you need to compare? Try it problems and apply it problems?
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Hi, I need help with equations :D
lana [24]
3(3) - (-8)/4 = 9 + 2 = 11 so (3,-8) is solution

3(4) - 4/4 = 12 - 1 = 11 so (4,4) is solution

answer
C. both ordered airs are solutions

8 0
3 years ago
Use the maclaurin series for cos(x) to find a maclaurin series for sin^2(x)
kolbaska11 [484]

Try this solution (see the attachment).

5 0
3 years ago
At a fast food​ restaurant, 10 cheeseburgers​ w/onion and 5 orders of french fries contain 6900 calories. 5 cheeseburgers​ w/oni
Leona [35]

Write the equations,

10 c + 5 f = 6900

5c + 3f = 3660

Double,

10c + 6f = 7320

Subtract,

f = 7320 - 6900 = 420

10 c = 6900 - 5f = 6900 - 2100 = 4800

c = 480

Answer: Cheeseburger 480 calories, fries 420 calories

Check:

10 (480) + 5 (420) = 4800 + 2100 = 6900 good

5(480) + 3(420) = 2400 + 1260 = 3660 good

5 0
3 years ago
Which expressions are equivalent?
alexdok [17]

Answer:

I believe the one that is selected is correct.

Step-by-step explanation:

1/5k - 2/3j and -2/3j + 1/5k

If you switch the subtraction to addition, 2/3 becomes negative, while 1/5 stays the same.

4 0
2 years ago
The pH level of tomato juice is 4.2. What is the hydrogen-ion concentration [H+]| for tomato juice?
garri49 [273]

Given:

pH = 4.2 of tomato

Required:

hydrogen-ion concentration [H+]| for tomato juice

Solution:

The formula for the pH relating hydrogen ion concentration is pH = -log[H+] where H+ is the hydrogen ion concentration. so, substitute the value of pH

pH = -log[H+]

4 = - log[H+]

-4 = log[H+]

10^-4 = [H+]

[H+] = 1x10^-4M

4 0
2 years ago
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