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3 years ago

One type of lightning bug glows once every 1 1/2 seconds. How many times can it glow in 1 minute?

Mathematics

2 answers:

KIM [24]3 years ago

8 0

It can glow 40 times per minute

Travka [436]3 years ago

5 0

40 times per minute. Divide 60 by 1.5.

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The Cramer's Rule states that, in a system of equation in two unknowns, in which determinants D is not 0, X=_____and Y=_____.

yan [13]

Answer:

Step-by-step explanation:

$x=\frac{D_{1}}{D} \\y=\frac{D_{2}}{D}$

5 0

3 years ago

Just do the one in the middle and explain please thanks

Alexus [3.1K]

It changed $7 each day

4 0

4 years ago

Read 2 more answers

?????????????????????????

ELEN [110]

To find the mean <span>Just add up all the numbers, then divide by how many numbers there are.

7 sets of numbers
the sum of all numbers is 105

105 </span>÷ 7 = 15

so the mean of the years is 15

7 0

3 years ago

Simplify into a single log with a single argument:

julia-pushkina [17]

Answer:

$2 \log_8 8$

Step-by-step explanation:

$3 \log_8 8 - 2 \log_8 4 + \log_8 2 =$

$= 3 \log_8 8 - 2 \log_8 4 + \log_8 2$

$= 3 \log_8 8 - 2 \log_8 8^\frac{2}{3} + \log_8 8^\frac{1}{3}$

$= 3 \log_8 8 - 2 \times \dfrac{2}{3} \log_8 8 + \dfrac{1}{3} \log_8 8$

$= 3 \log_8 8 - \dfrac{4}{3} \log_8 8 + \dfrac{1}{3} \log_8 8$

$= 2 \log_8 8$

Which equals simply 2 since log base 8 of 8 is 1.

5 0

3 years ago

4 cm What is the volume of this prism? 6 cm 10 cm

mestny [16]

Answer:

240 cm³

Step-by-step explanation:

Volume = lwh

10cm • 6cm • 4cm

10cm • 24 cm²

240 cm³

6 0

3 years ago