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4 years ago

What is the sum of the interior angles in this shape?

Mathematics

2 answers:

tino4ka555 [31]4 years ago

5 0

Answer:

270

Step-by-step explanation:

90+45+45+110

so that is wat i think ooo

Westkost [7]4 years ago

5 0

It’s 540 degrees- all pentagons, whether irregular or regular, have interior angles summing up to that amount. Hope this helps!

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Simplify-2(y+4) + 3y

Pie

Answer: y-8

Step-by-step explanation:

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3 years ago

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Anna needs to save $85 for a yoga class. She has already saved $42. How much more does Anna need to save?

Lana71 [14]

85-42= $43
She needs to save $43 more.

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3 years ago

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-64=(2cos(pi/2)+2i sin(pi/2))^n..... n=??

zvonat [6]

Answer:

The real solution is $n=6$ .

Step-by-step explanation:

$\cos(\frac{\pi}{2})=0$ while $\sin(\frac{\pi}{2})=1$

So the equation becomes:

$-64=(2(0)+2i(1))^n$

$-64=(0+2i)^n$

$-64=(2i)^n$

We know that $2^6=64$ . So let's see what $n=6$ gives us:

$(2i)^6=64i^6=64i^4i^2=64(1)(-1)=-64$ .

$-64$ is the result we wanted.

$n=6$ is therefore a solution.

4 0

3 years ago

Jason went to a carnival where he could goon all rides for a flat fee of $30 but he had to pay $2 for each arcade game he played

enot [183]

Answer:

He played 7 arcade games.

Step-by-step explanation:

The amount paid in relation to the number of games played can be modeled by a linear function in the following format:

$A(n) = F + gn$

In which F is the flat rate and g is the price of each game.

Flat fee of $30 but he had to pay $2 for each arcade game he played.

This means that $F = 30, g = 2$

$A(n) = 30 + 2n$

Jason spent $44. How many arcade games did he play?

This is n for which A(n) = 44. So

$A(n) = 30 + 2n$

$44 = 30 + 2n$

$2n = 14$

$n = \frac{14}{2}$

$n = 7$

He played 7 arcade games.

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3 years ago

Solve x²-x-30=0 using the factorisation method.

Furkat [3]

Answer:

Step-by-step explanation:

x²-x-30=0

x² - 6x + 5x - 30 = 0

(x² - 6x) + (5x - 30) = 0

x(x - 6) + 5(x - 6) = 0

(x + 5)(x - 6) = 0

x + 5 = 0 or x - 6 = 0

x = -5 or x = 6

8 0

3 years ago