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Basile [38]
3 years ago
7

Express the following in standard form.​

Mathematics
1 answer:
salantis [7]3 years ago
6 0

<em>To write in standard form, we have to move the decimal point in  </em>

<em>3.42</em>

<em> over 3 places to the left since our exponent is  10 3 </em>

<em>This gives us our answer of  </em>

<em>0.00342</em>

<em>Hope this helps.</em>

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Sofia is learning to knit. After her first three stitches, she had to undo the last two. Then she made three more stitches and a
Marizza181 [45]
She’ll have to make 4 more stitches in order to get 6 good ones. Each time she creates 3 she undoes 2 which after 4 more times would leave her with 6 good stitches.
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3 years ago
A certain pickup truck gets 20mpg in the city and 28 mpg on the highway. If the driver drives 270 mi on 11 gal of gas, determine
Snezhnost [94]

Answer:

95 city and 175 highway miles.

Step-by-step explanation:

The driver gets 20 mpg in city, and 28 mpg on the highway.

An equation that could be written is

20x+28y=270

This equation accounts for the distance traveled.

x+y=11

This equotion accounts for how many gallons were driven.

Multiply the bottom equation by 20, so you can solve the set of equations.

20x+28y=270

20x+20y=220

subtract them

8y=50

y=6.25

now plug this back into x+y=11

x+6.25=11

x=4.75

Now 4.75×20=95 city miles and 6.25×28=175 highway miles.

8 0
4 years ago
Last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,500 skat
Valentin [98]
Let x be a random variable representing the number of skateboards produced
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5 0
4 years ago
Every negative integer J is less than or equal to its inverse
Dahasolnce [82]

Answer:

Here we have the statement:

" Every negative integer J is less than or equal to its inverse"

First, remember that when we are talking about negative numbers, the ones that are closer to 0 are the larger ones.

For example, if we have -1 and -5

-1 is closer to zero, then:

-1 > -5

Now we have a negative integer J.

The smallest negative integer is -1

it's inverse is 1/-1 = -1

Then, if j = -1:

j = 1/j

-1 = 1/-1 = -1

and if  j < -1 (-2, -3, -4, -5.......)

then for example, for j = -2

1/-2 = - (1/2)

and (-1/2) is a number between -1 and 0

So it is closer to zero than -2

then:

(-1/2) > -2.

Then, concludin, if IjI > 1, we have always that  0 > 1/j > -1 > j.

8 0
4 years ago
An adult ticket for a magic show costs $18. A children's ticket for the magic show costs $12.
BlackZzzverrR [31]

Answer:

for adult tickets 90 and for children’s tickets 30

Step-by-step explanation:

because 90(18) = 1,620 and 30(12) is 360 and when you add up 1,620 + 360 you will get the total which is $1980

Also i just took the test on k12 and got it right and i hope this helps!

6 0
3 years ago
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