All categories

4 years ago

Please help me with this

Mathematics

1 answer:

Arturiano [62]4 years ago

7 0

Answer: d

Step-by-step explanation:

You might be interested in

PLSS help important (will gibe brainliest)! I dont understand this

bagirrra123 [75]

To form the vector notation for the translation:

--> must find how much the new graph moved horizontally from the old

graph

--> the graph moved 8 units horizontally

--> must find how much the new graph moved vertically from the old

graph

--> the graph moved 4 units vertically

In vector notation, that would be (8,4)

Hope that helps!

7 0

2 years ago

Can you help me with these 3?

miskamm [114]

Step-by-step explanation:

1. 5,11,17,23,29,35

Common difference is 6

3. 8,21,34, 47,60

Common difference is 13

5. 5,10,15,20,25

Common difference is 5

3 0

3 years ago

A well known pharmaceutical manufacturer is manufacturing a newly developed vaccine, and is concerned about variability in the i

Lana71 [14]

Answer:

The null hypothesis is $H_o : \ \sigma^2 = 1.9$

The alternative hypothesis is $H_a : \ \sigma^2 \ne 1.9$

$X^2 = 13.74$

The decision rule is

Reject the null hypothesis

The conclusion is

There is no sufficient evidence to conclude that the variance of the immune response is equal to 1.9.

Step-by-step explanation:

From the question we are are told that

The variance is $\sigma ^2 = 1.9$

The sample size is n = 30

The sample variance is $s^2 = 0.9$

The level of significance is $\alpha = 0.05$

The null hypothesis is $H_o : \ \sigma^2 = 1.9$

The alternative hypothesis is $H_a : \ \sigma^2 \ne 1.9$

Generally the test statistics is mathematically represented as

$X^2 = \frac{ (n- 1 ) * s^2 }{ \sigma^2 }$

=> $X^2 = \frac{ (30 - 1 ) * 0.9 }{1.9 }$

=> $X^2 = 13.74$

Generally from the degree of freedom is mathematically represented as

$df = n- 1$

=> $df = 30 - 1$

=> $df = 29$

Generally from the chi distribution table the critical value of $\frac{\alpha}{2} \ and \ 1 - \frac{ \alpha }{2}$ at a degree of freedom of $df = 29$ is

$X^2 _{ \frac{\alpha }{2} , df } = X^2 _{ \frac{0.05 }{2} , 29 } = 45.7$

=> $X^2 _{ 1 - \frac{\alpha }{2} , df } = X^2 _{1 - \frac{0.05 }{2} , 29 } = 16.0 5$

Gnerally from the values obtained we see that

$X^2 < X^2 _{ 1 - \frac{\alpha }{2} , df }$ hence

The decision rule is

Reject the null hypothesis

The conclusion is

There is no sufficient evidence to conclude that the variance of the immune response is equal to 1.9.

6 0

3 years ago

the perimeter of a rectangle is 210cm. the ratio of the width to the length is 3:4. what is the length of the rectangle?

sveta [45]

Answer:

length = 60 cm

Step-by-step explanation:

ratio of width : length = 3 : 4 = 3x : 4x

perimeter = (2 × width ) + (2 × length) = 6x +8x = 14x

now perimeter = 210, hence

14x = 210 ( divide both sides by 14 )

x = 15

hence length = 4 × 15 = 60 cm

4 0

4 years ago

Is 52 feet equal less than or greater than 918 inches

sergey [27]

52 would be less, 918 inches converts to 76.5 feet.

5 0

4 years ago

Read 2 more answers