A pentagon has 5 congruent sides and each angle measures 108°.

Mathematics

2 answers:

Lelu [443]3 years ago

8 0

Regular..............................

Dafna11 [192]3 years ago

6 0

I'd say A because all side are equal.

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338 is the same as 122 reduced by w written as an equation

Ivanshal [37]

Step-by-step explanation:

The given statement can be expressed as:

$122 - w = 338$

6 0

3 years ago

3. Graph y=-4x² – 2 and its inverse. (1 point)

madam [21]

Function and its inverse was graphed.

Step-by-step explanation:

y = -4x²- 2

To find the inverse function of y = -4x²- 2 we have to transform the formula to calculate x in terms of y.

y = -4x²- 2

-4x² = y - 2

x = √(y-2) / -4

Now we can change the letters to follow the convention that x is the independent variable and y is the function's value:

y = √(x-2) / -4

Now we have to draw the graph as,

It was side by side that is LHS is the function and the RHS is its inverse.

6 0

3 years ago

chelsea deposits $600 into a bank account and is earning simple interest.After 4 years her account has a balance of $621.60.If C

olga nikolaevna [1]

If she deposited $600 and had $621.60 after four years, then she earned: $621.60 - $600 = $21.60 in four years. It means in one year she earned $21.60 ÷ 4 = $5.40. Now we have to find out how many percent of $600 is $5.40:

$5.40 = x% from $600
5.4 = x/100 * 600
5.4 = 600x/100 / * 100 (both sides)
540 = 600x / ÷ 600 (both sides)
x = 0.9

So the interest rate was 0.9% annually.

Now we have to find out how much is 0.9% from $1100:

$1100 * 0.9% =
= 1100 * 9/1009 =
= 9900/1000 =
= 9.9

It means in one year she would earn $9.90. After 7 years she would earn $9.90 * 7 = $69.30, so she would have in her account:

$1100 + $69.30 = $1169.30

8 0

3 years ago

Simpifly 6/30 ..... ........

ollegr [7]

Answer:

1/5

Step-by-step explanation:

Divide both numerator and denominator by 6:

1/5

7 0

3 years ago

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