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3 years ago

PLEASE HELP!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

brilliants [131]3 years ago

8 0

9514 1404 393

Answer:

the sum of the interior angles is not 360°

Step-by-step explanation:

In order for the tiles to fit as shown, the sum of their interior angles must be 360°. Each n-sided figure has an interior angle sum of ...

180° - 360°/n

Then the sum of interior angles of 5-, 6-, and 8-sided figures will be ...

(180° -360°/5) +(180° -360°/6) +(180° -360°/8) = 540° -360°(1/5 +1/6 +1/8)

= 540° -360°(59/120) = 363° ≠ 360°

The angle sum is incorrect, so the tiles will overlap or leave a gap. They will not fit together perfectly.

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Yao Xin puts \dfrac{3}{10} 10 3 ? start fraction, 3, divided by, 10, end fraction liters of potting soil in each pot for plantin

slega [8]

Answer:

Step-by-step explanation:

Yao Xin puts $\frac{3}{10}$ liters of potting soil in each pot.

Suppose, the number of pots Yao Xin can fill is $x$

So, <u>the total amount of potting soil</u> in $x$ number of pots will be: $\frac{3}{10}x$ liters.

Given that, she has $5\frac{2}{3} or \frac{17}{3}$ liters of potting soil. So, the equation will be........

$\frac{3}{10}x= \frac{17}{3} \\ \\ x=\frac{17}{3}* \frac{10}{3}= \frac{170}{9}=18\frac{8}{9}$

So, she can fill pots.

4 0

3 years ago

Read 2 more answers

Simplify 5 to the 2nd power * 5 to the 9th power

icang [17]

Answer:

Thee first one is 25 and the second one is 1,953,125

Step-by-step explanation:

You just times each one by five. If you want to simplify it tho it would be as the first one is 12,5 the second one is 976562.5. Hope it helps

3 0

3 years ago

Read 2 more answers

Lots of points help me! its math 9th grade

77julia77 [94]

I think the answers would be B) 17

4 0

3 years ago

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WILL UPVOTE

amm1812

X=6 you need to multiply by 2

7 0

4 years ago

Through: (-5, -5), slope=2/5

kakasveta [241]

For this case we have that by definition, the equation of a line in the slope-intersection form is:

$y = mx + b$

Where:

m: It is the slope

b: It is the cut point with the y axis

The slope is: $m = \frac {2} {5}$

Thus, the equation is of the form:

$y = \frac {2} {5} x + b$

We substitute the given point and find "b":

$-5 = \frac {2} {5} (- 5) + b\\-5 = -2 + b\\-5 + 2 = b\\b = -3$

Finally, the equation is:

$y = \frac {2} {5} x-3$

Answer:

$y = \frac {2} {5} x-3$

4 0

3 years ago