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adell [148]
4 years ago
10

System substitution:

Mathematics
1 answer:
Olenka [21]4 years ago
4 0
The price of the oranges is 50 cents each, the price of the grapefruits is 60 cents each. 
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Suppose that similarity between ΔABC and ΔDEF can be shown by a refection followed by a dilation. What happens if you change the
Inessa [10]

Answer:

*It will yield the same result.* tep-by-step explanation: who cares there's the answer kiddo ;)

6 0
3 years ago
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Simplify.<br><br> 6m+7n+5m−3n
Ghella [55]

Answer:

11m+4n

Step-by-step explanation:

6m+7n+5m-3n

6m+5m+7n-3n

11m+7n-3n

11m+4n

5 0
3 years ago
Write the first four terms of the sequence defined by An=20-30(n-1)
monitta

The first four terms of sequence is 20, -10, -40, -70

<em><u>Solution:</u></em>

Given that we have to find the first four terms of sequence

<em><u>Given recursive formula is:</u></em>

a_n = 20 - 30(n-1)

<em><u>To find the first term, substitute n = 1</u></em>

a_1 = 20-30(1-1)\\\\a_1 = 20-30(0)\\\\a_1 = 20

Thus the first term of sequence is 20

<em><u>To find the second term, substitute n = 2</u></em>

a_2 = 20-30(2-1)\\\\a_2 = 20-30(1)\\\\a_2 = 20-30\\\\a_2 = -10

Thus the second term of sequence is -10

<em><u>To find the third term, substitute n = 3</u></em>

a_3 = 20-30(3-1)\\\\a_3 = 20-30(2)\\\\a_3 = 20-60\\\\a_3 = -40

Thus the third term of sequence is -40

<em><u>To find the fourth term, substitute n = 4</u></em>

a_4 = 20-30(4-1)\\\\a_4 = 20-30(3)\\\\a_4 = 20-90\\\\a_4 = -70

Thus the first four terms of sequence is 20, -10, -40, -70

3 0
4 years ago
A sample of 500 nursing applications included 60 from menThe 95% confidence interval of the true proportion of men who applied t
Dafna1 [17]

Answer:

The correct solution is "(0.092, 0.148)".

Step-by-step explanation:

Given:

Sample size,

n = 500

True proportion,

\hat {p} = \frac{60}{500}

  =0.12

The standard error will be:

SE=\sqrt{\frac{\hat p(1-\hat p)}{n} }

     =\sqrt{\frac{0.12(1-0.12)}{500} }

     =\frac{0.12(0.88)}{500}

The confidence interval is "1.96".

hence,

The required confidence interval will be:

= (\hat p - 1.96 SE, \hat p + 1.96 SE)

By substituting the values, we get

= (0.12-1.96\sqrt{\frac{0.12(0.88)}{500} }, 0.12+1.96\sqrt{\frac{0.12(0.88)}{500} }  )

= (0.092, 0.148)

8 0
3 years ago
PLEASE HELP!!
kifflom [539]

Answer:

Nothing, they are equal.

Step-by-step explanation:

we know that

The measure of an arc length is equal to the measure of its central angle

therefore

In this problem

If the central angle is 28°

then

The measure of its arc is  28° too

6 0
3 years ago
Read 2 more answers
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