3 years ago

I need help with these 2 questions.

Mathematics

1 answer:

BartSMP [9]3 years ago

5 0

12.) she gets 70 because she sells 60 fiction and 20 non fiction and you add 60 to 10 because the things are half off

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Choose as many answers as apply.

Pie

Answer:

b,c,d

Step-by-step explanation:

6 0

3 years ago

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PLEASE HELP!!! 15 PTS!!

kherson [118]

Answer:

$\large\boxed{C.\ (2,\ -45^o)}$

Step-by-step explanation:

Regular coordinates (x, y)

Polar coordinates (r, φ)

$r=\sqrt{x^2+y^2}\\\\\psi=\arctan\frac{y}{x}$

We have the point

$(\sqrt2,\ -\sqrt2)$

Substitute:

$r=\sqrt{(\sqrt2)^2+(-\sqrt2)^2}=\sqrt{2+2}=\sqrt4=2\\\\\psi=\arctan\left(\frac{-\sqrt2}{\sqrt2}\right)=\arctan(-1)=-45^o$

6 0

3 years ago

Please need help<br> Find area of shaded region.<br> Round to the nearest tenth

vlabodo [156]

Answer:

818.4 in²

Step-by-step explanation:

The area (A) of the shaded region is

A = area of circle - ( area of white sector + area of triangle )

= ( π × 27.8²) - (π × 27.8² × $\frac{210}{360}$ +(0.5 × 27.8 ×27.8 × sin150°)

= 2427.95 - (1416.30 + 193.21 )

= 2427.95 - 1609.51 ≈ 818.4 in²

7 0

3 years ago

Pls help i might give brainliest

zmey [24]

Answer:

60% I hope I help :) have a great day

6 0

2 years ago

Please respond asap! If its right i'll mark brainliest

svp [43]

Answer:

Yermin

Step-by-step explanation:

The square route of 0.5 is around 0.7.

7 0

3 years ago

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