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3 years ago

HELP PLEASE.

Mathematics

2 answers:

sladkih [1.3K]3 years ago

4 0

Answer:

Step-by-step explanation:

parent and meal choice

Molodets [167]3 years ago

4 0

Answer:

Step-by-step explanation:

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20 points!!!

vitfil [10]

Step-by-step explanation:

(12x - 19y) (12x + 19y) = 144x^2-361y^2

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3 years ago

If mean=30 and mode=15 find median

AnnZ [28]

Answer:

Step-by-step explanation:

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4 years ago

A Koch snowflake begins with an equilateral triangle with side length of 1 (stage 0). Trisect each side and attach a smaller equ

nata0808 [166]

Each triangle will have a side length of 1/3.
Since you do this for the 3 sides, each equilateral triangle has a perimeter of 1, so the 3 triangles will have a total perimeter of the stage 2 snowflake = 3

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3 years ago

If wrapping paper comes in packages of 300 cm2. How many packages will Sally need?

Leno4ka [110]

Answer:

she needs 3 packages

Step-by-step explanation:

the total area of the cd is 27 cm

so like

she needs to wrap 27 cm of area

because 0.5 cm by 14 cm by 12.5 cm added all together is 27

then

27 cm equals 10.6 inches

so now we need to find how many 300cm2 will fit into that 11 inch space

There are 0.00107639 square feet in a square centimeter.

but we want to know how many feet not square feet

0.00107639 × 27 =

0.02906253

2.906253

there are 2.906253 feet per suare foot

so 2.9 rounded up is 3

she needs 3 packages

7 0

3 years ago

In a hexagon, all but one of the angles have a measure of 110. What is the measure of the remaining angle?

viva [34]

Answer:

Part 1) The measure of the remaining angle is $60\°$

Part 2) Is a 10 sided polygon (decagon)

Part 3) Yes, is possible for a triangle to have angles measures of 1°, 2° and 177°

Step-by-step explanation:

Part 1)

we know that

The sum of the measures of the interior angles of a polygon is equal to the formula

$S=(n-2)180\°$

where

n is the number of sides of polygon

In this problem we have a hexagon

n=6 sides

Substitute

$S=(6-2)180\°=720\°$

Let

x-----> the measure of remaining angle of the hexagon

$6*(110\°)+x\°=720\°$

$x=720\°-660\°=60\°$

Part 2) The sum of the measures of the interior angles of a polygon is $1440\°$ . What kind of polygon is it?

we know that

The sum of the measures of the interior angles of a polygon is equal to the formula

$S=(n-2)180\°$

where

n is the number of sides of polygon

In this problem we have

$S=1440\°$

substitute in the formula and solve for n

$1440\°=(n-2)180\°$

$n=(1440\°/180\°)+2=10\ sides$

therefore

Is a 10 sided polygon (decagon)

Part 3) Is it possible for a triangle to have angles measures of 1°, 2° and 177° ?

we know that

In any triangle the sum of the measures of the interior angles must be equal to 180 degrees

In this problem we have

1°+ 2°+ 177°=180°

therefore

Yes, is possible for a triangle to have angles measures of 1°, 2° and 177°

5 0

3 years ago