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2 years ago

PLS ANSWER NOW WILL EARN BRAINLIEST IF RIGHT

Mathematics

2 answers:

kolbaska11 [484]2 years ago

5 0

Answer:

I Know the answer because I am in k12 too.

The answer is 37.5%

Step-by-step explanation:

$80 - $50 = $30

$30 * 100 / $ 80 = 37.5%

answer: 37.5% of decrease.

kiruha [24]2 years ago

5 0

Answer:

37.5

Step-by-step explanation:

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Find the area each sector. Do Not round. Part 1. NO LINKS!!<br><br>

sladkih [1.3K]

Answer:

$\textsf{Area of a sector (angle in degrees)}=\dfrac{\theta}{360 \textdegree}\pi r^2$

$\textsf{Area of a sector (angle in radians)}=\dfrac12r^2\theta$

17) Given:

$\theta$ = 240°
r = 16 ft

$\textsf{Area of a sector}=\dfrac{240}{360}\pi \cdot 16^2=\dfrac{512}{3}\pi \textsf{ ft}^2$

19) Given:

$\theta=\dfrac{3 \pi}{2}$
r = 14 cm

$\textsf{Area of a sector}=\dfrac12\cdot14^2 \cdot \dfrac{3\pi}{2}=147 \pi \textsf{ cm}^2$

21) Given:

$\theta=\dfrac{ \pi}{2}$
r = 10 mi

$\textsf{Area of a sector}=\dfrac12\cdot10^2 \cdot \dfrac{\pi}{2}=25 \pi \textsf{ mi}^2$

23) Given:

$\theta$ = 60°
r = 7 km

$\textsf{Area of a sector}=\dfrac{60}{360}\pi \cdot 7^2=\dfrac{49}{6}\pi \textsf{ km}^2$

3 0

1 year ago

Evaluate when x = 2<br> -X2 + 5x - 7

Rufina [12.5K]

Answer:

Step-by-step explanation:

f(x)=x²-5x+7

f(2)=2²-5.2+7=4-10+7=11-10=1

f(-1)=(-1)²-5.(-1)+7=1+5+7=13

f(1/3)=(1/3)²-5(1/3)+7=1/9-5/3+7=49/9

∴, f(2)-f(-1)+f(1/3)

=1-13+49/9

=58/9-13

=-59/9

mark be brainlest plss

6 0

2 years ago

Plz help these r the last of my points

IRINA_888 [86]

w=61, the equation is w=(456-a-b-c)/2, so the work would look like 456-132-94-108=122/2=61

3 0

2 years ago

Read 2 more answers

(x+3y=6<br> 16x + 18y = 36

jonny [76]

Answer:

X = 0 , y=2

Step-by-step explanation:

Check attachment

7 0

3 years ago

Please help answer all of them! for BRAINLIEST and more!! (Question In picture)

ohaa [14]

Answer:

A)-7y^3-3y^2-2y-8

B)-7x^3y^3-12x^2y^2-xy

C)2xy^3+3xy^2-5

A)14x^2

B)15a^2+30ab

Step-by-step explanation:

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1 year ago