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Ira Lisetskai [31]
2 years ago
14

Fifteen minutes past eight in the evening on a 24 hour clock​

Mathematics
1 answer:
anastassius [24]2 years ago
4 0

Answer: The time is 20:15 on a military time clock.

Step-by-step explanation:

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The product of 5 and twice a number
Stells [14]
Product means multiply so:

5(2n)
=10n
4 0
2 years ago
Read 2 more answers
Which of the following is the solution set of x² + 8x + 12 = 0?
raketka [301]

Answer:

\fbox{\begin{minipage}{9em}x = -2 and x = -6\end{minipage}}

Step-by-step explanation:

Given:

x^{2} + 8x + 12 = 0

Solve for:

x

Solution:

Step 1: Select the formula to solve for x

There are some ways to solve quadratic equations.

One of the simple way (if possible) is performing the factorization.

Another way is using the quadratic formula.

Here, we are going to use factorization.

Step 2: Perform factorization

      x^{2} + 8x + 12 = 0

<=>x^{2}  +  2x + 6x  + 12 = 0

<=>(x^{2} + 2x) + (6x + 12) = 0

<=>x(x + 2) + 6(x + 2) = 0

<=>(x + 2)(x + 6) = 0

<=> x = -2 or x = -6

Hope this helps!

:)

4 0
2 years ago
In a randomized controlled trial in Kenya, insecticide treated bednets were tested as a way to reduce malaria. Among 343 infants
Dovator [93]

Answer:

Step-by-step explanation:

Given that in a randomized controlled trial in Kenya, insecticide treated bednets were tested as a way to reduce malaria. Among 343 infants using bednets, 15 developed malaria. Among 294 infants not using bednets, 27 developed malaria.

H0: p1=p2

H1: p1 <p2

(one tailed test)

p1 = 15/343:p2 =27/294:

Difference 4.813 %

95% CI 0.9160% to 9.0217%

Chi-squared 5.947

DF  1

Significance level P = 0.0073

Since p <0.01 we reject null hypothesis.

4 0
3 years ago
What is the measure of the unknown angle?
Romashka-Z-Leto [24]

Answer:

63

Step-by-step explanation:

a entire circle is 360⁰

so you do:

360-297

6 0
2 years ago
Read 2 more answers
Writte three numbers greater than 20 that has a 9 as a factor
mestny [16]
27, 36, 45

Hope it helps ^^
7 0
3 years ago
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