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PIT_PIT [208]
3 years ago
5

Bill says he can add 23 and 40 without regrouping

Mathematics
2 answers:
Rasek [7]3 years ago
5 0
What's your question?
Angelina_Jolie [31]3 years ago
4 0
He can this because the is only a three in the ones place so their is nothing to add to that and 20 plus 40 is 60
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-4(y+1)+2 <br> help i am very confused
likoan [24]

Answer:

-4y-2

Step-by-step explanation:

-4(y+1)+2

-4 times y is -4y

-4 times 1 is -4

-4y-4 plus 2

is 4y-2

4 0
3 years ago
A target with a diameter of 14cm has 4 scoring zones by concentric circles. The diameter of the center circle is 2 cm. The width
Leni [432]

Answer:

48.98\%

Step-by-step explanation:

we know that

The probability that it will hit a point in the outer (yellow) ring is equal to divide the area of the yellow ring by the total area of the target

step 1

Find the area of the yellow ring

A=\pi [7^{2} -5^{2}]

A=24\pi\ cm^{2}

step 2

Find the total area of the target

A=\pi [7^{2}]

A=49\pi\ cm^{2}

step 3

Find the probability

24\pi/49\pi=0.4898

Convert to percentage

0.4898*100=48.98\%

4 0
3 years ago
Read 2 more answers
A circle of red roses is planted in Lowell's central park. The circle has a radius of 1 meter.
Damm [24]

Answer:

The circle's circumference is 6.28 m.

Step-by-step explanation:

We have,

The circle has a radius of 1 meter.

It is required to find the circumference of the circle. The formula of the circumference of circle is given by :

C=2\pi r

r is radius

C=2\times 3.14\times 1\\\\C=6.28\ m

So, the circle's circumference is 6.28 m.

4 0
3 years ago
What is the probability of picking a blue marble from a bag of 3 blue marbles, 4 orange marbles, 2 yellow marbles and 1 red marb
REY [17]
I thinks it’s 20 because it’s easy
3 0
3 years ago
Which set of numbers correctly shows all of the factors of 28? 1, 2, 4, 7, 14, 28 1, 2, 7, 14, 28 0, 1, 7, 14, 28 1, 2, 4, 7, 8,
slega [8]

Answer:

1, 2, 4, 7, 14, 28

Step-by-step explanation:

Factors of 28 are the numbers that divide into 28 evenly.

1, 2, 4, 7, 14, 28

3 0
3 years ago
Read 2 more answers
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