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3 years ago

Figure EFGH on the grid below represents a trapezoidal plate at its starting position on a rotating machine platform:

Mathematics

2 answers:

777dan777 [17]3 years ago

8 0

Answer:

Correct Answer is D (They form concentric circles)

Step-by-step explanation:

Zigmanuir [339]3 years ago

5 0

Answer:

the correct answer is D: they form concentric circles.

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How many solutions does the equation have? 6-a = 1/3(9a-18)

Alex777 [14]

6 - a = $\frac{1}{3}$ (9a - 18)

First, simplify $\frac{1}{3} (9a - 18)$ to $\frac{9a-18}{3}$ / Your problem should look like: $6 - a = \frac{9a - 18}{3}$
Second, multiply both sides by 3. / Your problem should look like: $18 - 3a = 9(a - 2)$
Third, expand. / Your problem should look like: $18 - 3a = 9a - 18$
Fourth, add 3a to both sides. / Your problem should look like: $18 = 9a - 18 + 3a$
Fifth, simplify 9a - 18 + 3a to 12a - 18. / Your problem should look like: $18 = 12a - 18$
Sixth, add 18 to both sides. / Your problem should look like: $18 + 18 = 12a$
Seventh, add 18 + 18 to get 36. / Your problem should look like: $36 = 12a$
Eighth, divide both sides by 12. / Your problem should look like: $\frac{36}{12} = a$
Ninth, since 3 goes into 12 to get 36, simplify $\frac{36}{12}$ to 3. / Your problem should look like: $3 = a$
Tenth, switch sides. / Your problem should look like: $a = 3$

Answer: a = 3 (one solution)

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%96%AA%E2%

solmaris [256]

Answer:

hejsjsjnsndjxjxjxjxiixicifici

3 0

3 years ago

Read 2 more answers

"6. A brand name has a 40% recognition rate. Assume the owner of the brand wants to verify that rate by beginning with a small s

statuscvo [17]

Answer:

(a) The probability that exactly 5 of the 6 consumers recognize the brand name is 0.0369.

(b) The probability that all of the selected consumers recognize the brand name is 0.0041.

(d) The events of 5 customers recognizing the brand name is unusual.

Step-by-step explanation:

Let X = number of consumer's who recognize the brand.

The probability of the random variable X is, P (X) = p = 0.40.

A random sample of size, n = 6 consumers are selected.

The random variable X follows a Binomial distribution with parameters n and p.

The probability mass function of X is:

$P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0,1,2,3...$

(a)

Compute the value of P (X = 5) as follows:

$P(X=5)={6\choose 5}0.40^{5}(1-0.40)^{6-5}\\=6\times0.01024\times0.60\\=0.036864\\\approx0.0369$

Thus, the probability that exactly 5 of the 6 consumers recognize the brand name is 0.0369.

(b)

Compute the value of P (X = 6) as follows:

$P(X=6)={6\choose 6}0.40^{6}(1-0.40)^{6-6}\\=1\times 0.004096\times1\\=0.004096\\\approx0.0041$

Thus, the probability that all of the selected consumers recognize the brand name is 0.0041.

(c)

Compute the value of P (X ≥ 5) as follows:

P (X ≥ 5) = P (X = 5) + P (X = 6)

= 0.0369 + 0.0041

= 0.041

Thus, the probability that at least 5 of the selected consumers recognize the brand name is 0.041.

(d)

An event is considered unusual if the probability of its occurrence is less than 0.05.

The probability of 5 customers recognizing the brand name is 0.0369.

This probability value is less than 0.05.

Thus, the events of 5 customers recognizing the brand name is unusual.

8 0

3 years ago

Find m …………….. ………….. …………..

xz_007 [3.2K]

Answer:

Hope this helps I'm not sure if its correct though, it must be correct anyway. So yea.

7 0

2 years ago

The length of a rectangle is 4 yards less than 2 times the width. If the perimeter is 34 yards, find the length and the width of

tamaranim1 [39]

Answer:

21 yards

Step-by-step explanation:

4 0

2 years ago