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Kaylis [27]
3 years ago
15

I need help please ?!!!!

Mathematics
2 answers:
Alecsey [184]3 years ago
7 0

Answer:

89

Step-by-step explanation:

= √ 64 +9²

=8 +81

=89

sleet_krkn [62]3 years ago
3 0

Answer:

89

Step-by-step explanation:

square root of 64 is 8. So, 8+9x9 = 8+81 = 89

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A rectangular floor is 7 yd long and 3 yd wide. Heatherwants to tile the floor with tile sold by the square foot.Use the facts t
Sonja [21]

We need to convert the given measures from yard to feet. Since 1 yard is equal to 3 feet, we have

\begin{gathered} 7yd=7yd\times(\frac{3ft}{1yd}) \\ \text{then} \\ 7yd=21ft \end{gathered}

similarly, for the wide, we have

\begin{gathered} 3yd=3yd\times(\frac{3ft}{1yd}) \\ 3yd=9ft \end{gathered}

Since the area of a rectangle is wide times length, the area is

\begin{gathered} A=\text{wide}\times length \\ A=9ft\times21ft \\ A=189ft^2 \end{gathered}

Therefore, the area is equal to 189 square feet

5 0
1 year ago
Hey scale drawing of Jamy’s living room is 4cm in width and 6cm length. If each 2cm on the scale drawing equals 8 feet what are
igor_vitrenko [27]
2 cm = 8 feet.
4 / 2 = 2. 8 * 2 = 16.  16 feet in width.
Now, the length:
6 / 2 = 3. 8 * 3 = 24. 24 feet in length.
The actual dimensions are 16 feet in width and 24 feet in length.

5 0
3 years ago
Can someome please help me solve this my teacher hasn't done a good with teaching us this.
scoundrel [369]

Answer:

  30500 = 3.05·10^4

Step-by-step explanation:

Your calculator can do this for you. You may need to set the display to scientific notation, if that's the form of the answer you want.

__

This can be computed by converting both numbers to standard form:

  (5·10^2) +(3·10^4)

  = 500 +30000 = 30500 = 3.05·10^4

__

Addition of numbers in scientific notation in general requires that they have the same power of 10. It may be convenient to convert both numbers to the highest power of 10.

  5·10^2 + 3·10^4

  = 0.05·10^4 +3·10^4 . . . . now both have multipliers of 10^4

  = (0.05 +3)·10^4

  = 3.05·10^4

5 0
3 years ago
Doug had about $3,215 in savings while his brother had double that amount in savings. What is a reasonable amount that the broth
swat32
Since Doug’s brother has double the amount of Doug we can just multiply the amount Doug has by 2.

$3,215*2 = $6,430
4 0
3 years ago
A. Calculate the average yearly rate of change in home runs hit from 1990<br> to 1992.
kodGreya [7K]

Answer:

Step-by-step explanation:

Use the rise over run formula

y2-y1/x2-x1

1992-1990/3317-3038

2/-279

-139.5

5 0
3 years ago
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