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4 years ago

PLEASE HELP IMAGE ATTACHED!! can u explain how to do it

Mathematics

1 answer:

aalyn [17]4 years ago

6 0

Answer: x = 10

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The two blue chords are equally distant from the center. This is shown by the segments with single tick marks. These segments are 3.5 units long.

The bottom blue chord is 10 units long because half of it is 5 units.

Since the chords are the same distance away from the center, this means that the blue chords are equal in length. Both blue chords are 10 units long.

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Which expression has a value of 12?<br> A. 3+32<br> B. 32 +23<br> C. (4+2)2<br> D. 42-32

alekssr [168]

The answer is C because if you multiply 4 and 2 by 2 it would become 8 and 4, 8+4=12

4 0

3 years ago

Use the given values of n and p to find the minimum usual value μ - 2σ and the maximum usual value μ + 2σ. Round your answer to

fenix001 [56]

Given Information:

number of trials = n = 1042

Probability of success = p = 0.80

Required Information:

Maximum usual value = μ + 2σ = ?

Minimum usual value = μ - 2σ = ?

Answer:

Maximum usual value = 859.51

Minimum usual value = 807.78

Step-by-step explanation:

In a binomial distribution, the mean μ is given by

μ = np

μ = 1042*0.80

μ = 833.6

The standard deviation is given by

σ = √np(1 - p)

σ = √1042*0.80(1 - 0.80)

σ = √833.6(0.20)

σ = 12.91

The Maximum and Minimum usual values are

μ + 2σ = 833.6 + 2*12.91

μ + 2σ = 833.6 + 25.82

μ + 2σ = 859.51

μ - 2σ = 833.6 - 25.82

μ - 2σ = 807.78

Therefore, the minimum usual value is 807.78 and maximum usual value is 859.51

8 0

4 years ago

Can someone help me on a.) and b.) please... Thanks so much!!!

jenyasd209 [6]

Answer:

Step-by-step explanation:s 15 s30 s70

8 0

3 years ago

Read 2 more answers

BRAINLIEST ANSWER TO THE FIRST CORRECT ANSWER!! PLEASE HELP!! ANSWER CORRECTLY PLEASE!!!!!!!!!!!!!!!!

Nitella [24]

The sequence is ×2.

12,288 is the 12th term.

24,570 is the answer. It is the sum.

5 0

4 years ago

The area of a rectangular field is 48m2 and one of its sides is 6m . How long will a lady take to cross the field diagonally at

tatiyna

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal can be obtained by

$diagonal = \sqrt{l^2 +b^2}$

$diagonal = \sqrt{6^2+ 7^2} = 9.22m$

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

6 0

3 years ago