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3 years ago

Can some one pls help and have a blessed day

Mathematics

1 answer:

Anna35 [415]3 years ago

4 0

Answer:

B. 20h

B. n/2

A. y-3

A. 8t

hope this helps

have a good day :)

Step-by-step explanation:

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For what value of M is the equation an identity 4x^2-x+M=3x^2+x+2

Alisiya [41]

Answer:

$m=3x^{3} +2$

Step-by-step explanation:

$4x^{2} -x+m=3x^{2} +x+2$

$4x^{2} +m=3x^{2} +2x+2$

$x^{2} +m=2x+2$

$m=3x^{3} +2$

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3 years ago

What is the conjugate of 1 + √5

RUDIKE [14]

Answer:

Exact Form:

1 + √5

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3 years ago

How do you find the quadratic function with vertex (-2,5) and point (0,9)?

Anastaziya [24]

Answer: y = (x +2)² + 5

Step-by-step explanation:

y = a(x - h)² + k where "a" is the leading coefficient and (h, k) is the vertex

Since we don't know "a", we need to plug in the point (x, y) and the vertex (h, k) to solve for "a": (x, y) = (0, 9) and (h, k) = (-2, 5)

y = a(x - h)² + k

9 = a(0 - (-2))² + 5

9 = a(0 + 2)² + 5

9 = a(2)² + 5

-5 -5

4 = a(4)

÷4 ÷4

1 = a

Next, plug in "a" and the vertex (h, k):

y = a(x - h)² + k

y = 1(x +2)² + 5

y = (x +2)² + 5

6 0

4 years ago

A sales and marketing management magazine conducted a survey on salespeople cheating on their

Alenkinab [10]

Answer:

The 95% confidence interval estimate of the population proportion of managers who have caught salespeople cheating on an expense report is (0.5116, 0.6484).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

In the survey on 200 managers, 58% of the managers have caught salespeople cheating on an expense report.

This means that $n = 200, \pi = 0.58$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.58 - 1.96\sqrt{\frac{0.58*0.42}{200}} = 0.5116$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.58 + 1.96\sqrt{\frac{0.58*0.42}{200}} = 0.6484$

The 95% confidence interval estimate of the population proportion of managers who have caught salespeople cheating on an expense report is (0.5116, 0.6484).

7 0

3 years ago

My dog is 113cm tall how many meters tall is my dog? (Hint: 1m=100cm (hint: 1 m=100cm

Llana [10]

Answer:

Your dog will be 1.13 meters tall

7 0

3 years ago