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const2013 [10]
3 years ago
8

Explain how estimation helps you to place the decimal point when multiplying 3.9 times 5.3

Mathematics
1 answer:
lara [203]3 years ago
8 0
I see it like this: we mupliply almost 4 by a little more then 5, so the result will be around 20 (4*5=20) : so the decimal point must be after the 20 (and it is, the result is 20.67
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3 to the 4th power + 2 ⋅ 5 =
Mandarinka [93]
Hello,

The answer is "x=91".

Reason:

First write the equation:

3^4+2*5=

Now use PEMDAS:

E goes first:

3^4=3*3*3*3=81

81+2*5

M goes next:

2*5=10

81+10=

Now use A:

81+10=91

x=91

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit
4 0
3 years ago
Help with #12!<br> Find the measure of
Mandarinka [93]

Answer:

239

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Emma is a sales clerk at a bicycle shop. She is paid $8.50 per hour for 32 hours workweek plus a commission of 6% of sales. In o
koban [17]


$8.50*32 hours = $272 salary

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$272 + $260.70=$532.70  gross weekly earnings

3 0
3 years ago
2
Over [174]

the thickness in scientific notation is:

4.3* 10⁻³ inches

<h3>How to write the thickness in scientific notation?</h3>

Here we know that the thickness of a dollar bill is 0.0043 inches.

Now, scientific notation refers to the notation where we have a single digit at the left of the decimal point, and the order of the number is defined by a factor of a power of 10.

To write our number in scientific notation we need to count the number of zeros that we have before the first non-zero decimal, and we can see that it is equal to 3.

Then we can move all the digits 3 units to the left, and add a factor 10⁻³ to correct that, then we will get:

0.0043 = 4.3* 10⁻³

From this, we conclude that the thickness in scientific notation is:

4.3* 10⁻³ inches

If you want to learn more about scientific notation:

brainly.com/question/5756316

#SPJ1

7 0
2 years ago
Round these numbers to the nearest tenths place (1 decimal place)<br> 4) 84.32
Scrat [10]

Answer:

84.3

Step-by-step explanation:

4 0
3 years ago
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