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3 years ago

PLEASE PLEASE HELP

Mathematics

1 answer:

stepan [7]3 years ago

8 0

Answer:

38 divided by 16146.2 = 0.0023534949 then rounded to the nearest hundredth = 0.00

38. divided by 16146.2= The same as that one ^

1614.62 divided by 3.8= 424.9 then rounded you get 424.90

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Please help me it’s due in 10 mins!!

Crazy boy [7]

Answer:

Step-by-step explanation:

5 * 1/5 + 1/5 * 15 = 4

8 0

3 years ago

Read 2 more answers

Ramon and justine are both watching brodcast both star at 7:00 a.M and ends at 9:00 a.M one one shows commercials every 17 minut

hoa [83]

Answer:

<h2>1:58 minutes after the show</h2>

Step-by-step explanation:

Step one:;

given data

start time= 7:00 am

end time= 9:00 am

we are told that one broadcast shows commercial every 17minutes

and the other shows commercials every 14 minutes

now the time when they both sho commercial is given by the greates common multiple of the times 17 and 14

multiples of 17= 17,34,51,68,85,102,119,136,153,170,187,204,221,238

multiples of 14= 14,28,42,56,70,84,98,112,126,140,154,168,182,196,210,224,238

for the number above 238 is common to both

238minutes to hours= 3.96667

=3:58 minutes

this shows that commercials will show at the same time 1:58 minutes after the show

4 0

3 years ago

Every day, Susan exercises in the morning. She travels a total of 4 miles. She starts off with a half-hour walk at a pace of 2 m

Anna [14]

Let's assume

the number of hours Susan jogs at the increased speed is 't' hours

Since, increased speed is 6 miles per hour

after 't' hours , she travles with increased speed is 6*t miles

She starts off with a half-hour walk at a pace of 2 miles per hour

so, she travels distance

=0.5*2 miles

=1 miles

She travels a total of 4 miles

total distance is

=6t+1

now, we can set them equal

$6t+1=4$

now, we can solve for t

Subtract both sides by 1

$6t+1-1=4-1$

$6t=3$

Divide both sides by 6

we get

$t=0.5$

so, the number of hours Susan jogs at the increased speed is 0.5 hrs.........Answer

7 0

3 years ago

Which expression is equivalent to x^4 + 4x^2 - 45?

Nikitich [7]

Answer:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

Step-by-step explanation:

The given expresion is

${x}^{4} + 4 {x}^{2} - 45 = 0$

We can rewrite this as:

$({ {x}^{2}) }^{2} + 4 {x}^{2} - 45 = 0$

We obtained a quadratic equation in x²

Let us split the middle term to get:

$({ {x}^{2}) }^{2} + 9 {x}^{2} - 5{x}^{2} - 45 = 0$

We factor by grouping to get:

${x}^{2} ( {x}^{2} + 9) - 5( {x}^{2} + 9) = 0$

We factor further to get:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

The correct answer is A.

6 0

3 years ago

Simplify each expression as much as possible, and rationalize denominators when applicable. 4x. √64x^2=?

Monica [59]

Answer:

$24x^{2}$

Step-by-step explanation:

We have

$4x\sqrt{64x^{2}$ We can root the 64 and the $x^{2}$

Then we get:

$4x8x$ Now we multiply and get

$24x^{2}$

5 0

3 years ago