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geniusboy [140]
3 years ago
12

True or false questions

Mathematics
1 answer:
Bond [772]3 years ago
8 0

Answer:

correct me if i'm wrong but i think

1.False

2.False

3.True

4.True

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Please help me put them in order from least to greatest
Scorpion4ik [409]
With calculator
sqrt(102) = 10.0995
10 = 10
3pi = 9.424
sqrt(99) = 9.9498
1.1 × 10^1 = 11
9.099 = 9.099

order is

9.099, 3π, sqrt(99), 10, sqrt(102), 1.1 × 10^1



5 0
3 years ago
If r = 3.2, what is the area of the shaded region? Round your answer to the nearest hundredth. Use your calculator's value of π.
MrRa [10]

Answer: The shaded area is 99.55 units squared.

Step-by-step explanation:

r = 3.2

Now, we can see that the sides of the square are equal to two times the diameter of the circles (or four times the radius of the circles), so the length of the sides of the square is:

L = 2*(2*3.2) = 12.8

The area of the square is A1 = L^2 = 12.8*12.8 = 163.84 units squared.

the shaded semicircle has a diameter of 4 times r (so the radius is 2 times r), and the area is equal to half the area of a circle:

A2 = (1/2)*pi*(2r)^2 = (1/2)*3.14*(6.4)^2 = 64.31 units squared.

And now we must subtract the area of the four smaller circles inside the square, the area of each one is:

A3 = pi*r^2 = 3.14*(3.2)^2 = 32.15 units squared.

Then the shaded area is:

A = A1 + A2 - 4*A3 = 163.84 + 64.31 - 4* 32.15 = 99.55 units squared.

8 0
3 years ago
A shirt that normally sells for $29 before discount was priced at 21.95 after discount. What is the percent saved?
aksik [14]

Answer:

18.04%

Step-by-step explanation:

discount = 28.00 - 22.95 = $5.05

Percent saved  = 5.05*100 / 28  =   18.04%

4 0
3 years ago
An art club sells 42 large candles and 56 small candle price of large candle is $10 the cost is $x a small candles cost $5 and c
balandron [24]

Answer:

Profit = $(700 - 42x - 56y)

Step-by-step explanation:

For large candles, the selling price is $10 and its making cost is $x.

So, by selling a large candle the profit is $(10 - x)

Again for small candles, the selling price is $5 and its making cost is $y.

So, by selling a small candle the profit is $(5 - y)

Therefore, in a sell of 42 large candles and 56 small candles the total profit will be, P = 42 (10 - x) + 56 (5 - y)

⇒ P = 420 - 42x + 280 - 56y {Applying distributive property}

⇒ P = $(700 - 42x - 56y) (Answer)

4 0
3 years ago
!!20 points and Brainliest please help!!!
vitfil [10]

D) ac + ad + bc + bd

Hope it helps :)

7 0
2 years ago
Read 2 more answers
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