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3 years ago

FIRST TO RESPOND CORRECTLY GETS BRAINLIEST

Mathematics

1 answer:

mr Goodwill [35]3 years ago

8 0

Answer:

Is it 189?

Step-by-step explanation:

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What is 0.0003840 expressed in scientific notation

neonofarm [45]

You can write the fraction 0.0003840 a number of ways.
0.0003840 = 0.003840/10 = 0.03840/100 = 0.3840/1000 = 3.840/10000

The one we're interested in is the last one, which has one non-zero digit to the left of the decimal point. The power of 10 in the denominator is the 4th power (the number of zeros is 4). 10^4 in the denominator is equivalent to multiplying by 10^(-4) in the numerator.

Expressed in scientific notation,
$0.0003840=3.840 \cdot 10^{-4}$

5 0

3 years ago

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An artist is painting flower pots that each require 1/32 gallon of paint. What is the maximum number of flower pots the artist c

Alex787 [66]

Answer:

24 flower pots

Step-by-step explanation:

Fraction of paint required per flower pot = 1/32

Number of pots that can be painted with 3/4 galoons of paint :

Total Fraction of paint had / fraction of paint required per flower pot

3/4 ÷ 1/32

3/4 * 32 / 1

(3*32) / 4

96 /4

= 24 flower pots

7 0

3 years ago

The width of a rectangle is 6 cm less than its length. If its perimeter is 80 cm then its lengths (in cm) and area (in cm²) are

mr_godi [17]

Start by stating the given info as mathematical expressions:

1. "<span>The width of a rectangle is 6 cm less than its length."
$w=l-6$

2. "I</span><span>ts perimeter is 80 cm."
$P=80$

Using the formula for perimeter ( $P=2l+2w$ ) we can show:
$80=2l+2w$ .

We now have 2 equations in 2 unknowns and can solve by substitution:
</span> $80=2l+2w$
$80=2l+2(l-6)$
$80=2l+2l-12)$
$92=4l$
$l=23$

The length is 23cm.

Having the length w can then find the width:
$w=l-6$
$w=23-6$
$w=17$

The width is 17cm.

And finally the area:
$A=lw$
$A=(23)(17)$
$A=391$

The area is $391cm^{2}$ .

As a check we can use the known perimeter:
$80=2l+2w$
$80=2(23)+2(17)$
$80=46+34$
$80=80$ Checks true.

5 0

4 years ago

Can some one help me with number 1

Naily [24]

Answer:

The graph going down answers are 3,-1, -5, and then -9

Step-by-step explanation:

3 0

3 years ago

I CANT FOCUS ON THIS QUESTION CUZ ALL OF MY SEROTONIN IS FOR MY NEW DOG PLEASE NO FILES THIS TIME.

maksim [4K]

2 1/3 - 1 4/5

= 7/3 - 9/5

= 35/15 - 27/15

= 8/15

ANSWER: 8/15

7 3/4 - 6 4/5

= 31/4 - 34/5

= 155/20 - 136/20

= 19/20

ANSWER: 19/20 ft. farther

8 0

3 years ago

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