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4 years ago

Help me with #15, please

Mathematics

1 answer:

skad [1K]4 years ago

6 0

Its sideways but oh well

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Identify the domain and range for the continuous graph provided below. Select all that apply for both the domain and range. Ther

alisha [4.7K]

The answer is 1, 2, 5, and 9

8 0

3 years ago

Solve for the value of z: 8/5 = 16/z

e-lub [12.9K]

Answer:

Step-by-step explanation:

$\frac{8}{5}=\frac{16}{z}\\\\ 8*z=16*5\\\\z=\frac{16*5}{8}\\\\z=2*5\\\\z=10$

8 0

3 years ago

Approximately 13.2% of US drivers are younger than age 25, with 37.7% in the 25-44 age group, and 49.1% in the 45-and-over-categ

Elan Coil [88]

Answer:

could not be the same

Step-by-step explanation:

Given that approximately US drivers are agewise as follows:

<25 13.2

25-45 37.7%

>45 49.1%

Observations are made for a sample of 200 fatal accidents.

Let us create hypotheses as

$H_0: Proportions age wise are the same as for US drivers\\H_a: Proportions are different$

(Two tailed chi square test at 5% significance level)

Age <25 25-45 >45

Expected 13.2 37.7 49.1 100

Observed 42 80 78 200

Expected no 26.4 75.4 98.2 200

Chi square 9.218181818 0.280636605 4.155193483 13.65401191

df = 2

p value = 0.001084

Since p <0.05 we reject null hypothesis

At the 0.05 level, the age distribution of drivers involved in fatal accidents within the state could not be the same as the age distribution of all US drivers as there seems to be significant difference.

5 0

3 years ago

Let p(x) be a polynomial of degree 10 such that p(k)=2^k for k=0,1,2,...,10.find p (11)

monitta

Answer:

p (11)=2^11

p (11)=2048

7 0

3 years ago

A cylindrical cake with a height of 5 inches has a 30 degree slice removed. If the volume of the removed slice is 40 inches what

sesenic [268]

Answer: $5.52\ in.$

Step-by-step explanation:

Given

Height of cylindrical cake is $h=5\ in.$

$30^{\circ}$ slice is removed

Volume of the slice is $V=40\ in.^3$

Area of slice is

$\Rightarrow \dfrac{30^{\circ}}{360^{\circ}}\times \pi r^2\\\\\Rightarrow \dfrac{\pi r^2}{12}$

Volume of slice will be multiplication of area and height

$\Rightarrow V=A\times h\\\\\Rightarrow 40=\dfrac{\pi r^2}{12}\times 5\\\\\Rightarrow \pi r^2=\dfrac{40\times 12}{5}\\\\\Rightarrow r^2=\dfrac{40\times 12}{3.142\times 5}\\\\\Rightarrow r^2=30.55\\\Rightarrow r=5.52\ in.$

Hence, the radius of the cake is $5.52\ in.$

4 0

3 years ago