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3 years ago

Please help! Hard math.

Mathematics

1 answer:

Reil [10]3 years ago

5 0

Answer:

the value of digit 3 in 156.32 =

3 x 0.1 = 0.3

The value of digit 3 in 13 =

3 x 1 = 3

3/0.3=10 times

The value of digit 3 in 13 is 10 ten times the value of digit 3 in 156.32

As long as the (digit in ones/single digit) of a number is equal to 3

The value of digit 3 of it is always 10 ten times the value of digit 3 in 156.32

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URGENT NEED THIS ASAP! 50 POINTS

klasskru [66]

Answer:

The Center is (-2 , 3)
Radius of the circle is 3

Step-by-step explanation:

$x^{2} + 4x + y^{2} - 6y = -4\\(x + 2)^{2} + (y - 3)^{2} = 9$

∴ the center is ( -2, 3)

radius of thw circle is 3

7 0

3 years ago

The Wilson family had 5 children. Assuming that the probability of a child being a girl is 0.5, find the probability that the Wi

Dafna11 [192]

Answer:

0.813

0.500

Step-by-step explanation:

Use binomial probability.

P = nCr p^r q^(n−r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

In this problem, n = 5, p = 0.5, and q = 0.5.

"At least 2 girls" means r = 2, 3, 4, or 5.

Or, we can use the complement.

P(at least 2 girls) = 1 − P(at most 1 girl)

P(at least 2 girls) = 1 − P(r=0 or r=1)

P(at least 2 girls) = 1 − ₅C₁ (0.5)¹ (0.5)⁵⁻¹ − ₅C₀ (0.5)⁰ (0.5)⁵⁻⁰

P(at least 2 girls) = 1 − 5 (0.5) (0.5)⁴ − 1 (1) (0.5)⁵

P(at least 2 girls) = 1 − 6 (0.5)⁵

P(at least 2 girls) ≈ 0.813

"At most 2 girls" means r = 0, 1, or 2.

P(at most 2 girls) = P(r=0, r=1, or r=2)

P(at most 2 girls) = ₅C₀ (0.5)⁰ (0.5)⁵⁻⁰ + ₅C₁ (0.5)¹ (0.5)⁵⁻¹ + ₅C₂ (0.5)² (0.5)⁵⁻²

P(at most 2 girls) = 1 (1) (0.5)⁵ + 5 (0.5) (0.5)⁴ + 10 (0.5)² (0.5)³

P(at most 2 girls) = 16 (0.5)⁵

P(at most 2 girls) = 0.500

4 0

3 years ago

In a half hour, Sarah is meeting her friends at the lake, 6 miles from her house. At what average speed must

Vladimir79 [104]

Answer:

Divide 6 miles by 0.5 hour: 6/0.5 = 12 miles per hour.

Step-by-step explanation:

4 0

3 years ago

Value of Y in formula shown when X=4/5 Y= 4/x + ✔️x + 0.2 - 5x

olga55 [171]

Answer:

The value of Y is 2.09443

Step-by-step explanation:

We have to find the value of Y for the given value of x.

The equation of Y is given by

$Y=\frac{4}{x}+\sqrt x+0.2-5x$

And the value of x is 4/5. On substituting this value of x in the equation of y, we get

$Y=\frac{4}{\frac{4}{5}}+\sqrt {\frac{4}{5}}+0.2-5\cdot \frac{4}{5}$

$Y=5+\frac{2}{\sqrt5}+0.2-4$

Add/subtract the numbers, we get

$Y=2.09443$

Therefore, the value of Y is 2.09443

3 0

4 years ago

Read 2 more answers

Can y'all help pleases like I need help

garik1379 [7]

<span>1223.65 cm^2

You multiply base (20) X height (20) for the squares. and since you can see 5 squares, it's 20 x 20 x 5 = 2000

then you do 20 x 20 + 20 x the square root of [(20/2)^2 +(18^2) + (20^2)] TIMES the square root of [(20/2)^2 + 18^2)] so you get about 1223.65cm^2</span>

5 0

4 years ago