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Inga [223]
3 years ago
7

(12) Check all that apply. Inequalities

Mathematics
1 answer:
MrRa [10]3 years ago
6 0
The circle is open i think is the right answer i hope i got it right if not im very sorry :(
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The sum of 3 consecutive integers is 78. What is the integer closest to zero?
vova2212 [387]

Answer:

25

Step-by-step explanation:

Let n be the first integer.

Then the second integer will be (n + 1).

And the third will be (n + 2).

The sum is 78. Therefore:

n+(n+1)+(n+2)+78

Solve for n. Combine like terms:

3n+3=78

So:

3n=75

Therefore:

n=25

Therefore, the first integer is 25.

So our sequene is 25, 26, and 27.

The integer closest to zero will thus be 25.

5 0
2 years ago
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An acute angle ? is in a right triangle with cos ? = nine tenths. what is the value of sec ?? square root of nineteen divided by
Anon25 [30]
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6 0
3 years ago
Are the following equivalent -3x=-x-2x <br>​
valina [46]

Answer:

Yes.

Step-by-step explanation:

By adding like terms, -x - 2x = -3x. Therefore, they are equivalent.

4 0
3 years ago
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How do I solve for t: <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20%282t%20%2B%205%29%20-%20t%20%3D%20%20%5C
Valentin [98]
Your answer is 3/4.  remove parentheses, multiply both sides by 4, collect the like terms, move terms, collect the like terms again and calculate, then divide both sides by -12
3 0
3 years ago
Assuming a soap bubble is a perfect sphere, what is the diameter of a bubble containing 500 cm of air, to the nearest tenth of a
Alex777 [14]

Answer:

9.8 cm

Step-by-step explanation:

Volume of a sphere, V = 4/3 πr³

V = 500cm³

π = 3.14

500 = 4/3 * 3.14 * r³

500 * 3 = 4 * 3.14 * r³

1500 = 12.56r³

r³ = 1500 / 12.56

r³ = 119.42675

r = (119.42675)^1/3

r = 4.9245574

Diameter = 2r

Diameter = 2 * 4.9245574

Diameter = 9.849

= 9.8cm

6 0
3 years ago
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