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devlian [24]
3 years ago
8

Write 3 < x < 9 in interval notation.

Mathematics
1 answer:
lutik1710 [3]3 years ago
8 0

Answer:

(3, 9)

Step-by-step explanation:

If we have ≤ or ≥, we use brackets to signify it includes the values.

If we have < or >, we use parenthesis to signify it doesn't include the values.

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Which equation listed below, when solved, shows how to find the circumference of a circle if the diameter is 6 inches? Use 3.14
siniylev [52]
The pertinent formula for the circumference of a circle with diameter d is

C =pi*d.

Thus, if the dia. is 6 inches, the circumf. is C = 6pi inches.  Alternatively, if we let pi = 3.14, the circumf. is   C = 6*3.14   (answer A).
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3 years ago
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2) The 114 students in the ninth grade at Mathville High are going on a field trip to the science
9966 [12]

Answer:

4 buses

Step-by-step explanation:

40b=114+114/10

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5 0
3 years ago
Cant find the answer
dedylja [7]

Answer:

Carter family = 25 hours

Davis family = 31 hours

Step-by-step explanation:

Let's say the number of hours the Carter family used their sprinkler is x and the number of hours the Davis family used their sprinkler for is y.

So combined:

x + y = 45 hours

and we are also told that:

40x + 15y = 1300 L

So we can do simultaneous equations to solve the problem.

With some rearranging, we can figure out that:

y= 45 - x

and by substituting that into the second equation:

40x + 15 (45 -x) = 40x + 675 - 15x = 1300L

25x = 1300 - 675

25x = 625

x = 25 = hours that the Carter family used their sprinkler

and we can substitute that back into the original equation to find how many hours the Davis family used their sprinkler so:

25 + y = 56

y = 31

The Davis family used their sprinkler for 31 hours whilst the Carter family used their sprinkler for 25 hours.

7 0
2 years ago
Qual é o coeficiente linear da funçao f(x) =2x - 1?
raketka [301]

Resposta: f ^ (- 1) (x) = (1/2) x-1/2

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Prove:ABCD is a parallelogram
labwork [276]

Answer:

Given

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<A and <D are supplementary

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3 years ago
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