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3 years ago

10

A paddleboard rental company charges $5 to borrow a lifejacket and $10 per hour. Write an equation in slope-intercept form that

represents this situation.

1 answer:

a_sh-v [17]3 years ago

3 0

Answer:

y=10x+5

Step-by-step explanation:

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SOORY but I need help

olga55 [171]

Answer:

C.) Stop C and Stop D

Hope This Helps! Have A Nice Day!!

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3 years ago

In Major League Baseball, the American League (AL) allows a designated hitter (DH) to bat in place of the pitcher, but in the Na

hammer [34]

Answer:

Step-by-step explanation:

From the given information:

Let:

$\mu_1$ represent the population mean no. for DH group.

$\mu_2$ represent the population mean no. for no DH group

$n_1$ represent the sample sizes of DH

$n_2$ represent the sample sizes of no DH

Sample size: $n_1 = n_2 = 20$

For both groups, the population standard deviation of runs scored = 2.54

i.e

$\sigma^2_1 = \sigma_2^2 = 2.54$

The null & alternative hypothesis;

$H_o : \mu_1 \le \mu_2 \\ \\ H_a: \mu_1 > \mu_2$

Level of significance:

The test statistics is:

$z = \dfrac{\bar x_1 - \bar x_2}{\sqrt{\dfrac{\sigma^2_1}{n_1} + \dfrac{\sigma_2^2}{n_2} }}$

where;

$\bar x_1$ = sample mean for DH group

$\implies \dfrac{1}{n_1} \sum \limit ^{n_1}_{i=1} x_1 \\ \\ = \dfrac{1}{20}(0+6+8+2+2+4+7+7+6+5+1+1+5+4+4+5+7+11+10+0) \\ \\ = \dfrac{92}{20}$

= 4.6

$\bar x_2$ = sample mean for no DH group

$\implies \dfrac{1}{n_2} \sum \limit ^{n_1}_{i=1} x_1 \\ \\ = \dfrac{1}{20}(3+6+2+4+0+5+7+6+1+8+12+4+6+3+4+0+5+2+1+4) \\ \\ = \dfrac{83}{20}$

= 4.15

Now:

$z = \dfrac{4.60- 4.15}{\sqrt{\dfrac{2.54^2}{20} + \dfrac{2.54^2}{20} }} \\ \\ = \dfrac{0.45}{\sqrt{0.32258 +0.32258 }} \\ \\ = \dfrac{0.45}{0.803219} \\ \\$

= 0.5602

Since the test is one-tailed by looking at that $H_a:$

The P-value = $P(Z > z)$

$\implies 1 - P(Z \le z) \\ \\ = 1 - P(Z \le 0.5602)$

Using Excel Function " =normdist(z)"; we have":

$= 1- 0.7123$

P-value = 0.2877

Decision rule: To reject $H_o$ , if $p-value < \alpha \ at \ 0.10$

Conclusion: SInce P = 0.2877 which is $> \ \alpha \ at \ 0.10.$

We fail to reject the $H_o$ and conclude that there is insufficient evidence to support the given claim that: $\text{more runs are scored in games for which DH is used.}$

8 0

3 years ago

Select the correct graph of ABC<br><br> Giving brainliest

Alex Ar [27]

Answer:

The answer is B

hope it helps

8 0

3 years ago

Read 2 more answers

At a garage sale books cost $1.50 each and musical

Novosadov [1.4K]

Answer:

$16

Step-by-step explanation:

4 books would cost $6 and 5 tapes would be $10. Add them to get 16.

8 0

4 years ago

Read 2 more answers

I NEED HELP ASAP

Maru [420]

Answer:

1x + 4y = 4 ⇒ 6x + 24y = 24

6x - 8y = 0 ⇒ 6x - 8y = 0

32y = 24

32 32

y = 3/4

x + 4(3/4) = 4

x + 3 = 4

-3 -3

x = 1

(x, y) = (1, 3/4)

Step-by-step explanation:

up there :D

4 0

2 years ago