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ivolga24 [154]
3 years ago
5

How many leaves on a tree diagram are needed to represent all possible combinations tossing a coin 4 times?

Mathematics
1 answer:
AlekseyPX3 years ago
7 0
1/2 x 1/2 x 1/2 x 1/2 = 1/16

Answer: 16
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Which expression is equivalent to 2x2 – 2x + 7?
diamong [38]

11-2x would be the answer u are looking for. Hope this helps!

4 0
3 years ago
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Helppp the tutorsss arent workinggg
Rama09 [41]

Answer:

210.82

Step-by-step explanation:

arc length= 2pi r (Ø/360)

= 2x 3.14 x 47(257/360)=210.82

5 0
2 years ago
Diagram 5 shows a triangle ABD such that AD = 17 cm, AB = 10 cm and BD = 21 cm. The straight line AC is perpendicular to the str
OlgaM077 [116]

Answer:

8

Step-by-step explanation:

100 = x^2 + AC^2

17^2 = AC^2 + (21 - x)^2

289 = AC^2 + 21^2 + x^2 - 2*21*x

289 =<u> AC^2</u> + 441 +<u> x^2</u> - 42x

from 1st equation AC^2 + x^2 = 100

289 = 441 + 100 - 42x

289 = 541 - 42x

42x = 541 - 289 = 252

x = 252/42 = 6

so AC^2 = 100 - 6^2 = 100 - 36 = 64

AC = 8

7 0
2 years ago
A + b = dr, solve for a
AURORKA [14]

Hey there!

Since we don't have values for b, d, and r, we can't get a specific number for the value of a, if that makes sense. It'll be represented by these variables.

To solve, we need to make sure the equation looks like a = ? .

Subtract b from each side of the equation.

<u>a = dr - b </u>

Now we have solved for a.

Hope this helps!

6 0
3 years ago
A total of 632 adults and children are at a water park. There are 68 fewer adults than children at the water park. How many chil
Alinara [238K]

Answer:

<h2>350 children</h2>

Step-by-step explanation:

x = Number of adults

x + x + 68 = 632

2x = 632 -  68

2x = 564

x = 282

282 + 68 = 350

350 children.

We can always check.

282 + 350 =

It equals 632, so we know our answer is correct.

6 0
2 years ago
Read 2 more answers
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