Help!! I’ll give points and brainliest

A newsletter publisher believes that 30% of their readers own a Rolls Royce. A testing firm believes this is inaccurate and perf

fredd [130]

Answer:

The evidence is not sufficient at the 0.02 level of significance to reject the claim that the percentage is 30%.

Step-by-step explanation:

Let's first state the null and alternative hypotheses for this research;

H0: p = 0.30

Ha: p ≠ 0.30

Now, since the bull hypothesis is the claim and he fails to reject the null hypothesis from the research, we will conclude that;

The evidence is not sufficient at the 0.02 level of significance to reject the claim that the percentage is 30%.

5 0

3 years ago

Need help! Write the answer down on a paper plzzzzzzzz I will give brainlyest to person who gets it right!‼️❤️

natima [27]

Answer:

a. yes

b. no

c. yes

d. yes

e. yes

f. yes

g. no

h. no

7 0

3 years ago

Based on the graph below, how would you describe the curve?

victus00 [196]

D. is the correct answer

Hopes this helps

5 0

3 years ago

Solve the proportion

Elena-2011 [213]

To solve this, you need to cross multiply the fractions.

Let’s say you have these fractions:
A / B = C / D

To cross multiply, multiply the denominator of the first fraction (B) by the numerator of the second fraction (C). Multiply the numerator of the first fraction (A) by the denominator of the second fraction (D).

You get B x C = A x D

After cross multiplying your fractions, you get 63 = 7(c +4)

Distributing the 7 into c+4 gives you this:
63 = 7c + 28

Now solve this like a normal equation with a variable

63 = 7c + 28
35 = 7c
5 = c

To double check that, plug c = 5 into the original equation.

1/(5) + 4 = 7/63
1/9 = 7/63

7/63 simplifies into 1/9 (7:7 = 1, 63/7 = 9)

1/9 = 1/9 so c = 5 is correct

8 0

3 years ago

Determine the cost of parking for each given amount of time. 5 minutes costs $ 1 hour costs $ 1 hour and 50 minutes costs $ 2 ho

SOVA2 [1]

<u>Answer:</u>

5 minutes costs $0.25;

1 hour costs $3;

1 hour and 50 minutes costs $5.5

2 hours costs $6;

2 hours and 1 minute costs $6.05;

3 and a half hours costs $10.5

<u>Explanation:</u>

Given the cost of parking for each hour is $3

Therefore, 1 hour = $3

By principle of unitary method;

a)1 hour (60 minutes) = $ 3

5 minutes = $\frac{3 \times 5}{60}$

= $0.25

b)1 hour (60 minutes) = $3

1 hour 50 minutes = 60+50 minutes = 110 minutes = $\frac{3 \times 110}{60}$

= $5.5

c)1 hour (60 minutes) = $3

2 hours (120 minutes) = $\frac{3 \times 120}{60}$

= $6

d) 1 hour (60 minutes) = $3

2 hours 1 minutes = 120 + 1 = 121 minutes = $\frac{3 \times 121}{60}$

= $6.05

e) 1 hour (60 minutes) = $3

3 and half hours = (3× 60) +30 = 210 minutes = $\frac{3 \times 210}{60}$

= $10.5

Therefore, 5 minutes costs $0.25; 1 hour costs $3; 1 hour and 50 minutes costs $5.5; 2 hours costs $6; 2 hours and 1 minute costs $6.05; 3 and a half hours costs $10.5

6 0

4 years ago

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