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Makovka662 [10]

2 years ago

14

if there was a group of ten people the probability of two of them being born on the same day of the same week is 1? is this corr

ect yes or no explain you answer.

1 answer:

gladu [14]2 years ago

6 0

Answer:yes

Step-by-step explanation:

Im not that good but if there is a birth rate of 1000 people per day then if you estimate that awnser you have a possibility of 60%

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Estimate the perimeter of the figure to the nearest whole number.

ser-zykov [4K]

Answer:

See Explanation Below

Step-by-step explanation:

The question is incomplete (because the figure to calculate the perimeter is missing).

However from the comment attached to your question, I understand that the figure looks like a plus sign.

The perimeter of a plane shape is calculated by adding the length of each side of the shape.

Take for instance;

A square of length 5cm.

We know that a square has 4 equal sides; meaning that the length of the other sides are also 5cm

So, the perimeter of the square will be calculated as 5cm + 5cm + 5cm + 5cm = 20cm

Similarly, the perimeter of a triangle whose sides are 4ft, 3ft and 5ft will be calculated by adding up the length of the three sides.

Perimeter of the triangle = 4ft + 3ft + 5ft

Perimeter = 12ft.

Having explained how the perimeter of a plane shape is calculated; take for example, the attachment below.

(The sides are measured in centimetres)

The plus sign has 12 sides; Its perimeter is calculated by adding up the length of the 12 sides.

Perimeter = 3 + 7 + 7 + 5 + 5 + 5 + 5 + 2 + 2 + 4 + 4 + 3

Perimeter = 52cm

4 0

3 years ago

What is the root of this equation? <br>2x^2 - 4x + 9 = 0

faust18 [17]

Answer:

x = 1 + i sqrt(7/2) or x = 1 - i sqrt(7/2)

Step-by-step explanation:

Solve for x:

2 x^2 - 4 x + 9 = 0

Divide both sides by 2:

x^2 - 2 x + 9/2 = 0

Subtract 9/2 from both sides:

x^2 - 2 x = -9/2

Add 1 to both sides:

x^2 - 2 x + 1 = -7/2

Write the left hand side as a square:

(x - 1)^2 = -7/2

Take the square root of both sides:

x - 1 = i sqrt(7/2) or x - 1 = -i sqrt(7/2)

Add 1 to both sides:

x = 1 + i sqrt(7/2) or x - 1 = -i sqrt(7/2)

Add 1 to both sides:

Answer: x = 1 + i sqrt(7/2) or x = 1 - i sqrt(7/2)

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3 years ago

Parallel lines a and b are cut by a transversal c. What is mR in the diagram below?

ankoles [38]

There’s so diagram if you can provide a picture

4 0

3 years ago

what are two lines that lie within the same plane and never intersect A.) perpendicular lines B.) parallel lines C.) plane

Monica [59]

Parallel Lines lie within the same plane but never intersect

Hope this helps!

6 0

3 years ago

You walk 3/8 miles to a music store. Then you walk another 1/3 miles to a clothing store. How many miles have you walked in all?

Rudik [331]

Answer:

You have walked $\frac{17}{24}$ miles

Step-by-step explanation:

In order to add these two fractions, we must find a common denominator. In this case, I used 24

$\frac{3}{8} +\frac{1}{3} \\\\\frac{9}{24} +\frac{8}{24} =\frac{17}{24}$

6 0

3 years ago

Read 2 more answers