All categories

3 years ago

Can someone plz help me

Mathematics

1 answer:

sleet_krkn [62]3 years ago

6 0

First pair - ( 1, 200 )
second pair - ( 2, 400 )
third pair - ( 3, 600 )
fourth - ( 4, 800 )
fifth - ( 5, 1000 )

You might be interested in

the ratio of red cars to blue cars in a parking lot was 5 : 3. if there were 40 cars, how much blue cars were there

maria [59]

Answer: 24

Step-by-step explanation:

6 0

3 years ago

Pls help asap!!!!!!!!!!!!!!

fomenos

A c’(-8,1), d’ (-6,5), e’ (-2,4)

6 0

3 years ago

A resident of Bayport claims to the City Council that the proportion of Westside residents

Kazeer [188]

Answer:

The test statistics is $z = -1.56$

The p-value is $p-value = 0.05938$

Step-by-step explanation:

From the question we are told

The West side sample size is $n_1 = 578$

The number of residents on the West side with income below poverty level is $k = 76$

The East side sample size $n_2=688$

The number of residents on the East side with income below poverty level is $u = 112$

The null hypothesis is $H_o : p_1 = p_2$

The alternative hypothesis is $H_a : p_1 < p_2$

Generally the sample proportion of West side is

$\^{p} _1 = \frac{k}{n_1}$

=> $\^{p} _1 = \frac{76}{578}$

=> $\^{p} _1 = 0.1315$

Generally the sample proportion of West side is

$\^{p} _2 = \frac{u}{n_2}$

=> $\^{p} _2 = \frac{112}{688}$

=> $\^{p} _2 = 0.1628$

Generally the pooled sample proportion is mathematically represented as

$p = \frac{k + u}{ n_1 + n_2 }$

=> $p = \frac{76 + 112}{ 578 + 688 }$

=> $p =0.1485$

Generally the test statistics is mathematically represented as

$z = \frac{\^ {p}_1 - \^{p}_2}{\sqrt{p(1- p) [\frac{1}{n_1 } + \frac{1}{n_2} ]} }$

=> $z = \frac{ 0.1315 - 0.1628 }{\sqrt{0.1485(1-0.1485) [\frac{1}{578} + \frac{1}{688} ]} }$

=> $z = -1.56$

Generally the p-value is mathematically represented as

$p-value = P(z < -1.56 )$

From z-table

$P(z < -1.56 ) = 0.05938$

$p-value = 0.05938$

3 0

3 years ago

A chef made 30 Donuts in 60 minutes. how long would it take him to make 90 Donuts?

ICE Princess25 [194]

Answer:

180 minutes

Step-by-step explanation:

90×60/30= 180

4 0

2 years ago

Laura is three times as old as Luci. In 5 years, the sum of their ages will be 30. What are the current ages of Laura and Luci?

Scrat [10]

Answer:

Laura is 15 and Luci is 15.

Step-by-step explanation:

Now...

Laura - 3x

Luci - x

In 5 years...

Laura - 3x+5

Luci - x+5

The sum of that is...

4x+10=30

-10 -10

4x=20

4/4 20/4

x=5

If...

Laura - 5 than.....

Luci - 15 because 5*3 is 15

4 0

3 years ago