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2 years ago

Which of the following numbers is a perfect square? 1 489 2 485 3 490 4 484

Mathematics

2 answers:

nataly862011 [7]2 years ago

5 0

Answer:

3490 is the perfect square

Flura [38]2 years ago

4 0

Answer:

490 is the correct answer

Step-by-step explanation:

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I need help plsss Nowww

enyata [817]

8: tenths
9:hundredth
7:thousandth

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2 years ago

Which expression is a perfect cube ? X^6 Y^24 M^28 S^64

guapka [62]

Answer: S^64

Step-by-step explanation:

S^4 - 4.4.4 = 64

5 0

2 years ago

Read 2 more answers

1-116 1.2.6

ankoles [38]

Answer:

A. 30 adults; B. 24 not dolls

Step-by-step explanation:

$\begin{array}{rcl}\text{No. of adults} & = & \text{No. of visitors} \times \text{Fraction who are adults}\\& = & \text{100 visitors} \times \dfrac{\text{3 adults}}{\text{10 visitors}} \\& = & \textbf{30 adults}\\\end{array}$

If five-eighths of the prizes were dolls, then three-eighths of the prizes were not dolls.

$\begin{array}{rcl}\text{No. not dolls} & = & \text{No. of prizes} \times \text{Fraction not dolls}\\& = & \text{64 prizes} \times \dfrac{\text{3 not dolls}}{\text{8 prizes}} \\& = & \textbf{24 not dolls}\\\end{array}$

3 0

2 years ago

You must calculate the number of sheets of plywood needed for subflooring. Each sheet of plywood measures 4'by 8. The measuremen

snow_lady [41]

Answer:

25 sheets of plywood will be needed

Step-by-step explanation:

Each sheet of plywood measures $4ft*8ft=32ft^{2}$ .

We have to cover the surface of the house, minus the surface of the hole of the stairs.

$Surface _{to cover} = Surface _{house} -Surface _{hole}= (28ft*30ft)-(12ft*4ft)= 840ft^{2}-48ft^{2}=792ft^{2}$

To know how many sheets will be needed, we divide the surface to be covered by the surface of each sheet

$Sheets_{needed} =\frac{Surface _{house}}{Surface _{sheet}} =\frac{792ft^{2}}{32\frac{ft^{2}}{sheet} } = 24,75 sheets$

As we can't buy 0,75 of a sheet, we round it up, i.e. we will need 25 sheets of plywood for subflooring.

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2 years ago

HELP ASAP PLZ IM TIMED

nasty-shy [4]

Answer:

Step-by-step explanation:

4 0

1 year ago