A motorist completes a journey in 45 minutes covering a distance of 75km at what speed did he travel​

Anwers

20.5%

step by step

Answer:

f(1)= -(1)2 + (1) -7

f(1)= -1+1-7

f(1)= -7

Step-by-step explanation:

when you substitute 1 in the function it doesn't carry the negative sign it's independent

Answer:

square or rectangle

Step-by-step explanation:

Answer:

Answer is 80192.75

Step-by-step explanation:

It's easy, I just used a calculator and I multiplied 482 x 5.5 three times since it's three years. Have a good day and I hope I helped you today!!!

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

Item Super Ralph's Lowblaws

1 $2.32 $1.25 $1.25

2 2.40 1.80 1.87

3 2.10 3.10 3.10

4 2.30 1.87 1.87

5 1.21 1.37 1.37

6 4.04 3.05 1.72

7 4.32 3.52 2.22

8 4.15 3.08 2.40

9 5.05 4.15 4.21

H0 : sample mean are equal

H1: sample mean are not equal

Using the Chisquare distribution calculator :

Chisquare :

(Observed - Expected)² ÷ Expected

Chisquare value = 1.759

Degree of freedom (df) = (row - 1) * (column - 1)

Df = (9-1) * (3-1) = 8*2 = 16 at α = 0.10

Pvalue = 0.999

Decision region :

Reject H0 if Pvalue < α

Since, 0.999 > 0.10 ; Then, Fail to reject H0

Hence, there is no difference in the mean price and the store means.

Answer:

  D.  All of the above

Step-by-step explanation:

Insurance costs are influenced by any factor that can reasonably be tied to the cost of claims made against an insurance policy. These costs are carefully analyzed by insurance companies to determine correlations that may be influential.

__

In general, women have different driving habits than men, so gender has an influence on insurance costs.

Some areas of a city have different statistics related to vandalized or stolen vehicles, so may influence insurance costs. Certain areas may have different accident statistics, or may experience different kinds of accidents, so repair costs may differ by where you live or where you drive.

Some cars are more expensive to repair than others. Any car with custom features (stereo, upholstery, paint) will likely cost more to repair (and may be subject to more vandalism).

So, all of the above influence insurance costs.

Answer:

The answer is 74 <33

Step-by-step explanation:

Answer:

24.55

Step-by-step explanation:

2ab - b + c = ?

2(9.84)(1.3) - 1.3 + 0.27 = ?

25.58 - 1.3 + 0.27 = 24.55

Given:

Number of strawberry candy = [tex]\bold{8\ pieces}[/tex]

Number of rhubarb candy = [tex]\bold{7 \ pieces}[/tex]

Find the number of ways for equally distributing candy to all 5 children

Using formula:

[tex]\to \bold{_{n} C_{r}=\frac{n !}{r!(n-r) !}}[/tex]

Calculating the distributing way for strawberry candy:

[tex]\to \bold{_{8} C_{5}=\frac{8 !}{5!(8-5) !}}[/tex]

           [tex]\bold{=\frac{8 !}{5! \ 3 !}}\\\\\bold{=\frac{8 \times 7 \times 6 \times 5!}{5! \ 3 \times 2\times 1}}\\\\\bold{=\frac{8 \times 7 \times 6 }{ 6}}\\\\\bold{=8 \times 7}\\\\\bold{=56}[/tex]

Calculating the distributing way for rhubarb candy:

[tex]\to \bold{_{7} C_{5}=\frac{7 !}{5!(7-5) !}}[/tex]

           [tex]\bold{=\frac{7 !}{5! \ 2 !}}\\\\\bold{=\frac{7 \times 6 \times 5!}{5! \ 2\times 1}}\\\\\bold{=\frac{ 7 \times 6 }{ 2}}\\\\\bold{=7 \times 3}\\\\\bold{=21}[/tex]

Adding both distributing ways:

[tex]\to \bold{56+21=77}[/tex] ways

Learn more:

probability: brainly.com/question/23044118

Answer:

question 1(2)

answer 4

question 2(3)

answer 1

question 3(4)

(a)6; factored

(b)7; factored

c(8); factored

Answer:

25h + 45

Step-by-step explanation:

4(h+6) 7(3h+3)

4h + 24  21h + 21

25h + 45

Answer:

Different playlists possible = 18287141644800

Step-by-step explanation:

Given - DJ Titus is making a playlist for a radio show; he is trying to

            decide what 10 songs to play and in what order they should be

            played.

            Step 1 of 2 : If he has his choices narrowed down to 7 blues,

                                 7 disco, 5 pop, and 7 reggae songs.

To find - He wants to play no more than 4 reggae songs.

              How many different playlists are possible ?

Proof -

Given that he wants to play no more that 4 reggae songs.

So the possibility of choice of reggae song is 0, 1, 2, 3, 4

Now,

Case I -

If 0 reggae song is selected

⇒All 10 songs selected from 7 blue, 7 disco, 5 pop,

Number of ways = ¹⁹C₁₀ ₓ ⁷C₀ = 92,378

Case II -

If 1 reggae song is selected

⇒All 9 songs selected from 7 blue, 7 disco, 5 pop,

Number of ways = ¹⁹C₉ ₓ ⁷C₁ = 646,646

Case III -

If 2 reggae song is selected

⇒All 8 songs selected from 7 blue, 7 disco, 5 pop,

Number of ways = ¹⁹C₈ ₓ ⁷C₂ = 1,587,222

Case IV -

If 3 reggae song is selected

⇒All 7 songs selected from 7 blue, 7 disco, 5 pop,

Number of ways = ¹⁹C₇ ₓ ⁷C₃ = 1,763,580

Case V -

If 4 reggae song is selected

⇒All 6 songs selected from 7 blue, 7 disco, 5 pop,

Number of ways = ¹⁹C₆ ₓ ⁷C₄ = 949,620

So,

Total possible ways = 92,378+ 646,646+ 1,587,222+ 1,763,580+ 949,620

                               = 5,039,446

⇒Total possible ways = 5,039,446

Now,

Also the 10 songs selected can arranged themselves in 10! ways. ( because order of song played does not matter )

∴ we get

Different playlists possible = 10! × 5,039,446

                                          = 18287141644800

⇒Different playlists possible = 18287141644800

I haven't done this in a while but I'm pretty sure the answer is

D; The outlier

Answer:

D - outlier

Step-by-step explanation:

It can’t be A - the spread would the minimum and maximum.

‘Can’t be B - the mean in the overall average, which would probably be a bit higher than 13

Can’t be C - the median is the “middle” number when ordered smallest to largest. It would be 13 in this example

24 is an odd number compared to the rest. It seems like it might be an error in the data, because it is so different than all the rest - hence it is the outlier.

Answer:

Step-by-step explanation:

The Cauchy integral formula states that the values of a holomorphic function inside a disk are determined by the values of that function on the boundary of the disk. More precisely, suppose f : U → C f: U \to \mathbb{C} f:U→C is holomorphic and γ is a circle contained in U.

Answer:

The answer is twelve :)))

Answer:

12

Step-by-step explanation:

Answer:

A group of people forming less than half of total population of a region or country

can be called as

Answer:

I'm thinking 15 units, but tell me if i'm wrong

Step-by-step explanation:

Since the distance is usually the absolute value of the distance between the two points, 5 plus 10 is 15. Hope this helps! :)

Answer:

the triangle is congruent by sss.

Answer:

they are congruent by s.s s axiom

The studies in which the results may have been skewed by bias.

Others are:

A study on the average life span of a type of plant, where 50% of the data fell above the population mean.

A skewed or (biased) result, is known to often occur even if there was an accurate that is unbiased algorithm that is said to be seen as skewed (biased) data.

Note that when you If you wrongly remove or include some participants in your research, you can be able to get skewed data results.

Learn more about bias from

https://brainly.com/question/24491228

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Answer:

70

Step-by-step explanation:

100% means all of them.

Answer:

I need help right now with math

Step-by-step explanation:

Answer:

4 2/5 × 1/2= 2 1/5 / 2.2 miles

Step-by-step explanation:

hope this helps.

Answer: it is 168

Step-by-step explanation: m−137.25=30.75

Step 1: Add 137.25 to both sides.

m−137.25+137.25=30.75+137.25

m=168

Answer:

[tex]T_7 = 136.6875[/tex]

Step-by-step explanation:

Given

12, 18, 27, ..

Required

Determine the 7th term

The above sequence shows a geometric sequence and the nth term is calculated by:

[tex]T_n = a * r^{n-1[/tex]

r is calculated by:

[tex]r = \frac{T_2}{T_1}[/tex]

[tex]r = \frac{18}{12}[/tex]

[tex]r = 1.5[/tex]

[tex]a = 12[/tex] --- First term

[tex]n = 7[/tex]

So:

[tex]T_n = a * r^{n-1}[/tex]

[tex]T_7 = 12 * 1.5^{7-1[/tex]

[tex]T_7 = 12 * 1.5^6[/tex]

[tex]T_7 = 136.6875[/tex]

Answer:

Note that both relations and functions have domains and ranges. The domain is the set of all first elements of ordered pairs (x-coordinates). The range is the set of all second elements of ordered pairs (y-coordinates). Only the elements "used" by the relation or function constitute the range.

Answer:

37:31 or any other way of writing 37 to 31

Step-by-step explanation:

Write the ratio the same way the question asks, there are 37 girls and 31 boys. This cannot be simplified.

Using the unitary method, if the weight of a book is [tex]\frac{1}{3}[/tex] pound, then the weight of 4 books is [tex]\frac{4}{3}[/tex]

"The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value."

Apply unitary method

Weight of 1 book = [tex]\frac{1}{3}[/tex]

Weight of 4 books = [tex]4(\frac{1}{3})[/tex]

Hence, the weight of 4 books is [tex]\frac{4}{3}[/tex]

To learn more about unitary method here

https://brainly.com/question/24406804

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Step-by-step explanation:

collect the like terms 12x+4=9x+8

12x-9x=8-4

3x=4

X=1.333

Answer:

8

Step-by-step explanation:

➝12x+4+9x+8=180

➝12x+9x+4+8=180

➝21x+12=180

➝21x=180-12

➝21x=168

➝x=168/21

➝x=8

Answer:

Step-by-step explanation:

From the given information:

We are to find the following:

1)

Directional hypothesis: The directional hypothesis is the groups with different bedroom lightning conditions having a different proportion of eyesight proportions.

2)

The non directional hypothesis is each group having the same proportion of eyesight problems regardless and independent of the condition of the bedroom lightning.

3)

Control group: Children that slept in darkness

4)

Experimental groups: Children that slept in night light and those that slept with lamp.

5)

Independent variable: Light condition of the bedroom

Dependent variable: Eye sight problem.