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3 years ago

I need help please!!!

Mathematics

2 answers:

natka813 [3]3 years ago

8 0

Answer:

Step-by-step explanation:

So you would have f(3) = 3 + $\frac{2}{2}$

f(3) = 3 + 1

f(3) = 4

allochka39001 [22]3 years ago

3 0

Answer:

Step-by-step explanation: f(x)

3+ a square root of 3+1 / x-1

3+ a square root (4/2)

3+ square root of 2. That's the answer

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The population in 1993 was 11,211 people. The annual increase of the population is 4.18%. What is the population of Cypress in 2

RoseWind [281]

Answer:

Based on this information the population in 2019 is <u>23,395</u>. This is because 4.18% of 11,211 is 468.62, times 26(amount of years) is 12,184. After that you would just add the original population(11,211).

Step-by-step explanation:

3 0

3 years ago

Silicon wafers are scored and then broken into the many small microchips that will he mounted into circuits. Two breaking method

antoniya [11.8K]

Answer:

The estimate is $- 0.0265\le K \le 0.0465$

Method B this is because the faulty breaks are less

Step-by-step explanation:

The number of microchips broken in method A is $n_1 = 400$

The number of faulty breaks of method A is $X_1 = 32$

The number of microchips broken in method B is $n_2 = 400$

The number of faulty breaks of method A is $X_2 = 32$

The proportion of the faulty breaks to the total breaks in method A is

$p_1 = \frac{32}{400}$

$p_1 = 0.08$

The proportion of the faulty to the total breaks in method B is

$p_2 = \frac{28}{400}$

$p_2 = 0.07$

For this estimation the standard error is

$SE = \sqrt{ \frac{p_1 (1 - p_1)}{n_1} + \frac{p_2 (1- p_2 )}{n_2} } }$

substituting values

$SE = \sqrt{ \frac{0.08 (1 - 0.08)}{400} + \frac{0.07 (1- 0.07 )}{400} } }$

$SE = 0.0186$

The z-values of confidence coefficient of 0.95 from the z-table is

$z_{0.95} = 1.96$

The difference between proportions of improperly broken microchips for the two breaking methods is mathematically represented as

$K = [p_1 - p_2 ] \pm z_{0.95} * SE$

substituting values

$K = [0.08 - 0.07 ] \pm 1.96 *0.0186$

$K = - 0.0265 \ or \ K = 0.0465$

The interval of the difference between proportions of improperly broken microchips for the two breaking methods is

$- 0.0265\le K \le 0.0465$

3 0

3 years ago

Lisa [10]

Answer:

20 units

Step-by-step explanation:

The 3 part of the ratio refers to 15 units

Divide 15 by 3 to find the value of one part of the ratio

15 ÷ 3 = 5 ← value of 1 part of the ratio, thus

4 parts = 4 × 5 = 20 units ← perimeter of larger figure

6 0

3 years ago

Read 2 more answers

3x-4(2+3x)=82

enyata [817]

Answer:

x=-10

Step-by-step explanation:

3x-4(2+3x)=82

3x-(4*2)+(4*3x)=82

3x-8-12x=82

-9x-8=82

-9x-8+8=82+8

-9x=90

-9x/-9=x

90/-9=-10

x=-10

8 0

3 years ago

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Julie and Brian are financing $245,000 to purchase a house. they obtained a 30/5 balloon mortgage at 5.25%. What will their ball

balandron [24]

This question had the following choices:
<span>A) $223,884.91
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I used the Online Balloon Payment Loan Calculator and got this amount $226,753.92. This is nearest to Choice B.

For manual computation, use this formula in the 2nd attachment.

6 0

3 years ago