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strojnjashka [21]
3 years ago
9

Please help me I am so lost!

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
8 0
1. Plug in -3 for a
14-(-3)^2
14-9
5

Final answer: 5

2. 15 more than r=15+r (notice the keyword more) equals 61
Final answer: r+15=61
uranmaximum [27]3 years ago
8 0
14 - a^2
= 14 - (-3)^2
= 14 - 9
= 5

answer D. 5

--------
15 + r = 61 or r + 15 = 61

answer is B.
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Which equation demonstrates the distributive property?
Oliga [24]

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3 years ago
What is the shaded portion of the circle
blagie [28]

Answer:

(5\pi-11.6)\ ft^{2}

Step-by-step explanation:

we know that

The area of the shaded region is equal to the area of the sector minus the area of the triangle

step 1

Find the area of the circle

the area of the circle is equal to

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we have

r=5\ ft

substitute

A=\pi (5)^{2}

A=25\pi\ ft^{2}

step 2

Find the area of the sector

we know that

The area of the circle subtends a central angle of 360 degrees

so

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\frac{25\pi}{360}=\frac{x}{72}\\ \\x=72*25\pi /360\\ \\x=5\pi\ ft^{2}

step 3

Find the area of triangle

The area of the triangle is equal to

A=\frac{1}{2}(2.9+2.9)(4)= 11.6\ ft^{2}

step 4

Find the area of the shaded region

Subtract the area of the triangle from the area of the sector

(5\pi-11.6)\ ft^{2}

8 0
3 years ago
1. Oceanside Bike Rental Shop charges 13 dollars plus 6 dollars an
umka21 [38]
It cost 3$ per hour
3 0
4 years ago
7kg :420g simplest form​
DENIUS [597]

Answer:

50:3

Step-by-step explanation:

7000g:420  both are divisible by 70

1000:60 both are divisible by 10

100:6  both are divisible by 2

50:3

please mark me as brainliest!!<3

8 0
3 years ago
Sila jogged 12 kilometers today and wants to know how far she traveled in feet. What error did Sila make while converting from k
ozzi

Answer:

umm i'm not rly sure what's going on here...but here's how i'd do it

Step-by-step explanation:

3280.84x12=39370.08 which is about 3,9370 feet.

to double check let's do an algebraic expression

1/3280.84=x/12        cross multiply

x(1)=3280.84(12)       simplify

x=39370.08

hope that helped.

8 0
3 years ago
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