A couple decided to have 4 children. What is the probability that they will have at least two boys?

Answers

Answer 1

Answer: See below the theee of possibilities:

BBBB
BBBG
BBGB
BBGG
BGBB
BGBG
BGGB
BGGG
GBBB
GBBG
GBGB
GBGG
GGBB
GGBG
GGGB
GGGG

There are 16 differents possibilities.
In 11 of them have at least 2 boys

So probability is 11/16

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Please Help me ASAP Just answers please ;)

Answers

Answer:

Step-by-step explanation:

< means exclusive, so open hole

≤ means inclusive, so closed dot

also, you can see that the values for y are going down, like 6, 4, 2. That's only in answer C.

Find the arc length of AB. Round answer to nearest tenth.

Answers

Answer:

9.8 inches

Step-by-step explanation:

The formula for arc length is (θ/360)2πr

This is where θ represents the measure of the central angle in degrees,

and r represents the radius of the circle.

This said, we can plug our values in.

(80/360)2π7

Simplify.

(2/9)14/π

28/9π

9.7738438112

Round to nearest tenth.

9.8

Answer:

9.8 inches

Step-by-step explanation:

Set up a proportion:

central angle / 360 = arc length / circumference

$(80)/(360)$ = $(x)/(14\pi )$

360 divided by 14pi is about 8.2, so divide 80 by 8.2 to find x.

x = 9.8 in

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Answers

Answer:

hello its me again and im trying to help you kid

Step-by-step explanation:

The answer to ur question is b

Kevin claims he can draw a trapezoid with three right angles. Is this possible? Explain.

Answers

Using an indirect proof:

Assume that the figure is a trapezoid.
All trapezoids are quadrilaterals.
All quadrilaterals' interior angles add up to 360° because any n-gon's interior angles add up to 180(n-2)°.
We are given that the trapezoid has three right angles.
All right angles are 90°, thus these right angles have a total measure of 270°.
We can conclude fourth angle must be 90°.
If it has four right angles, it is a rectangle.
Rectangles have two sets of parallel sides.
However, trapezoids have exactly one set of parallel sides.
Alas, our figure cannot be a trapezoid.

not possibletrapezoid is a quadrilateral with 4 angles and 4 sideswhich means the interior measure =360if 3 angles are right the 4th angle must be a right anglea trapezoid does not have 4 right angles,it only has onepair of parallel sideshope this helps

Barbara has $70.00 in her pocket and a $20 gift card. which purchase will she be able to make without having to use her credit card?

Answers

if Barbara has $ 70.00 in her pocket and a $ 20 gift card. then the maximumm amount she can pruchase is $ 70 + $ 20 = $ 90
so let x be purchase will she be able to make without having to use her credit card
x >= $ 90

Answer:

Step-by-step explanation:

six puzzles for $11.99 each and a board game for $15.89

Why does it help to write a subtraction problem as an addition problem

Answers

If you are doing negative subtraction it makes it addition automatically which helps to just add instead of reverse subtraction

Answer: If you are doing negative subtraction it makes it addition automatically which helps to just add instead of reverse subtraction

Step-by-step explanation:

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