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irinina [24]
3 years ago
7

20 POINTS the perimeter of a semicircular disc whose diameter is 28 cm.

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
8 0
87.96 cm

I hope this helped out! Have a nice day :)
gavmur [86]3 years ago
7 0

Answer:

87.96 cm

Step-by-step explanation:

I had this answer up but it got deleted for sum reason....

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Jack has some marbles. He has ten more red marbles than blue marbles. He has fewer yellow marbles than blue marbles.
kap26 [50]

Answer:

<u>Jack has at least 15 marbles: 12 red, 2 blue and 1 yellow.</u>

Step-by-step explanation:

1. Let's review the information given to us to solve the problem correctly:

Number of red marbles = 10 more than blue marbles

Number of yellow marbles fewer than blue marbles

2. How many of each color marble could Jack have?

r = Number of red marbles

b = Number of blue marbles

y = Number of yellow marbles

r = b + 10

y < b

If y = 1, then b ≥ 2, and r = b + 10,

fulfilling the three conditions, we have:

<u>y = 1, b = 2, and r = 12</u>

5 0
3 years ago
5x+2=12 find the value of x
mylen [45]

Answer:

x = 2 is the answer hope this helps

Step-by-step explanation:

8 0
3 years ago
Can you explain it and help me out please​
shusha [124]

Answer:

D. two real solutions

Step-by-step explanation:

p²+5 = 6p

p² - 6p +5 =0

D = b² - 4ac = (-6)² - 4*(1)*5 = 36 - 20 = 16

D > 0, so this equation has 2 real solutions

4 0
3 years ago
Zach has an above-ground pool that has a radius of 5.5 feet. He wants to put a new wall liner around his pool and needs to know
Tems11 [23]

Answer: 34.54feet

Step-by-step explanation:

Thw circumference of the pool will be calculated by using the formula:

= 2πr

where

π = 3.14

r = 5.5

Therefore, circumference = 2πr

= 2 × 3.14 × 5.5

= 34.54feet

Therefore, the circumference of the pool to the nearest hundredth is 34.54feet.

7 0
3 years ago
Please help me answer these. Its all about upper and lower bounds.
sergeinik [125]

Answer:

red question= 8.5 yellow question=4.25

Step-by-step explanation:

5 0
3 years ago
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