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3 years ago

An instructional video is 5.4 minutes long. How long is the video in seconds? How long is it in hours?

Mathematics

1 answer:

Advocard [28]3 years ago

6 0

324 seconds
0.09 hour

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0.25k+1.5-k-3.50.25k+1.5−k−3.5

BARSIC [14]

Answer:

-0.75k - 2.0

Step-by-step explanation:

0.25k + 1.5 − k − 3.5

Combining like terms with rational coefficients

0.25k + 1.5 - k - 3.5

Collect like terms with rational coefficients

=0.25k - k + 1.5 - 3.5

= -0.75k - 2.0

Answer equals negative zero Point seven five k minus two point zero

7 0

2 years ago

What us the problem to 5^4×3^2

torisob [31]

Answer:

The answer is <u>5625</u>

Step-by-step explanation:

Lets break up the problem

So you have two things: 5^4 and 3^2

Solve seperately

Gives you 625 and 9

Then multiply both together

625*9 = <u>5625</u>

4 0

3 years ago

Read 2 more answers

Carman used her knowledge of angle relationships to find the value of x in the diagram.what is the value of x ?

Sergeeva-Olga [200]

Answer:

The Answer is 9

Step-by-step explanation:

6 0

2 years ago

I need help with multiplying and dividing powers

Tamiku [17]

You need to know these two formulas:

$\huge a^b \times a^c = a^{b+c}\\\\\huge \frac{a^b}{a^c}=a^{b-c}$

For example,

$5^2 \times 5^3 = 5^{2+3} = 5^5$

$\frac{2^6}{2^4} = 2^{6-4} = 2^2$

6 0

2 years ago

Among all pairs of numbers with a sum of 238238, find the pair whose product is maximum. Write your answers as fractions reduced

mylen [45]

Answer:

$x=119119,\;\;\;y=119119$

Step-by-step explanation:

Let the $x$ be the first number, $y$ be the second number and $p$ be the product of the first and second number.

i.e $x+y=238238$ $\Rightarrow x=238238-y$

$p=xy$

$\Rightarrow p=(238238-y)y\\\Rightarrow p=238238y-y^2$

$\Rightarrow \frac{dp}{dy} =238238-2y\\\Rightarrow 0=238238-2y\\\Rightarrow 2y=238238\\\Rightarrow y=119119$

Now,

$x=238238-119119\\\\ \Rightarrow x=119119$

Hence, $x=119119,\;\;\;y=119119$

8 0

2 years ago