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3 years ago

Solve for x. Please help

Mathematics

1 answer:

nata0808 [166]3 years ago

4 0

Answer:

In the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ÷)

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Joexreader where are you Joexreader

Anit [1.1K]

Answer:

this seems like an interesting story

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3 years ago

Read 2 more answers

The percent defective for parts produced by a manufacturing process is targeted at 4%. The process is monitored daily by taking

Anna [14]

Answer:

The 88% confidence interval for the proportion of defectives today is (0.053, 0.123)

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 $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 160, \pi = \frac{14}{160} = 0.088$

88% confidence level

So $\alpha = 0.12$ , z is the value of Z that has a pvalue of $1 - \frac{0.12}{2} = 0.94$ , so $Z = 1.555$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.088 - 1.555\sqrt{\frac{0.088*0.912}{160}} = 0.053$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.088 + 1.555\sqrt{\frac{0.088*0.912}{160}} = 0.123$

The 88% confidence interval for the proportion of defectives today is (0.053, 0.123)

6 0

3 years ago

Y=1/3mx^3 – (m–1)x^2 + 3(m–2)x +1/3

ValentinkaMS [17]

Answer:

not true

Step-by-step explanation:

i just wants points mate

8 0

3 years ago

A small candy store makes three types of party mixes. The first type contains 2020% nonpareils and 8080% peanut clusters, whi

valina [46]

Answer:

First type

nonpareils=43376.66 pounds

peanut clusters= 70070 pounds

Second type

peanut clusters= 43793.75 pounds

chocolate-covered raisins= 75075 pounds

Third type

nonpareils= 86753.33 pounds

peanut clusters= 26276.25 pounds

chocolate-covered raisins= 45045 pounds

Step-by-step explanation:

Types of party mixes;

nonpareils

peanut clusters

chocolate-covered raisins

Store has

130130 pounds of nonpareils

140140 pounds of peanut clusters

120120 pounds of chocolate-covered raisins

Ratio of % ages nonpareils of first and third types is given below;

2020:4040

1:2

Sum of ratios = 1+2=3

So %age share of First type nonpareils= 1× 130130/3=43376.66 pounds

and %age share of Third type = 2 × 130130/3=86753.33 pounds

Ratio of peanut clusters in each type

8080 : 5050 : 3030

or 808:505:303

sum of ratios = 808+505+303=1616

%age share of peanut clusters of First type = 808× 140140/1616=70070 pounds

%age share of peanut clusters of Second type = 505× 140140/1616=43793.75 pounds

%age share of peanut clusters of third type = 303 × 140140/1616=26276.25 pounds

Ratio of chocolate-covered raisins in second and third types;

5050: 3030

505:303

Sum of ratios = 505+303=808

%age of chocolate-covered raisins of second type =505×120120/808=75075 pounds

%age ratio of chocolate-covered raisins of third type = 303× 120120/808=45045 pounds

4 0

3 years ago

I need help with question 2 and three please thanks in advance

Dima020 [189]

(4.1 x 10^13) / (9.46 x 10^12) = 0.433 x 10^1 = 4.33 light years

(6 x 10^6) / (3 x 10^5) = 2 x 10^1 = 20 grams

8 0

3 years ago