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koban [17]
3 years ago
7

Which equation can be used to represent “six added to twice the sum of a number and four is equal to one-half of the difference

of three and the number”?
Mathematics
2 answers:
slega [8]3 years ago
7 0

Answer:

The required equation is 6+2(x+4)=\frac{1}{2}(3-x).

Step-by-step explanation:

Let x be the unknown number.

We have to find the equation for the statement “six added to twice the sum of a number and four is equal to one-half of the difference of three and the number”.

Twice the sum of a number and four = 2(x+4)

Six added to twice the sum of a number and four is equal = 6+2(x+4)

Difference of three and the number = (3-x)

One-half of the difference of three and the number = \frac{1}{2}(3-x).

Since six added to twice the sum of a number and four is equal to one-half of the difference of three and the number, therefore

6+2(x+4)=\frac{1}{2}(3-x)

Hence, the required equation is 6+2(x+4)=\frac{1}{2}(3-x).

soldi70 [24.7K]3 years ago
5 0
Hello!

You could write this equation as seen below.

6+2(x+4)=0.5(3-x)

I hope this helps!
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likoan [24]

Answer:

First Blank: 4*2 = <em><u>8</u></em>

Second Blank: 6*2 = <em><u>12</u></em>

Step-by-step explanation:

The common ratio for the right row is the number thats given on the opposite side of it's left row times 2

Hope this helps!

4 0
3 years ago
Read 2 more answers
F(x) = (x - 2)²(x+1)​
Inessa [10]

(x - 2)²(x+1)​

(x-2)(x-2)

multiply the two brackets together

(x)(x)=x^2

(x)(-2)=-2x

(-2)(x)=-2x

(-2)(-2)=4

x^2-2x-2x+4

x^2-4x+4

(x^2-4x+4)(x+1)

multiply the brackets together

(x^2)(x)=x^3

(x^2)(1)=x^2

(-4x)(x)=-4x^2

(-4x)(1)=-4x

(4)(1)=4

x^3+x^2-4x^2-4x+4x+4

Answer:

x^3-3x^2+4

5 0
3 years ago
John left a $2 tip for the server when stopped at a diner. If this was 20% of his order total, how much was his order?
Katen [24]
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4 0
2 years ago
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A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 335335 babies were​ born
strojnjashka [21]

Answer:

The 99​% confidence interval estimate of the percentage of girls born is (74.37%, 85.63%).

Usually, 50% of the babies are girls. This confidence interval gives values considerably higher than that, so the method to increase the probability of conceiving a girl appears to be very effective.

Step-by-step explanation:

Confidence Interval for the proportion:

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}.

For this problem, we have that:

n = 335, \pi = \frac{268}{335} = 0.8

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 - 2.575\sqrt{\frac{0.8*0.2}{335}} = 0.7437

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 2.575\sqrt{\frac{0.8*0.2}{335}} = 0.8563

For the percentage:

Multiplying the proportions by 100.

The 99​% confidence interval estimate of the percentage of girls born is (74.37%, 85.63%).

Usually, 50% of the babies are girls. This confidence interval gives values considerably higher than that, so the method to increase the probability of conceiving a girl appears to be very effective.

7 0
3 years ago
Oblicz ułamki 2/8=.../4
Marina86 [1]

Answer:


Step-by-step explanation:


7 0
3 years ago
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