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3 years ago

Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = -3 + 3 sin θ

2 answers:

6 0

Support your algebraic solution with a grapher. r=1−3sinθ. ... the graph is symmetric about the x-axis, the y-axis, or the origin.

qwelly [4]3 years ago

5 0

Answer:

y-axis

Step-by-step explanation:

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The cost of hiring a surfboard involves an up-front fee plus an hourly rate. Three hours of hire costs $50 and 7 hours costs $90

siniylev [52]

Answer:

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6 0

3 years ago

Suppose a researcher is interested in understanding the variation in the price of store brand milk. A random sample of 36 grocer

liberstina [14]

Answer: ($3.055, $3.205)

Step-by-step explanation:

Given : Significance level : $\alpha: 1-0.95=0.5$

Critical value : $z_{\alpha/2}=1.96$

Sample size : n= 36

Sample mean : $\overline{x}=\$\ 3.13$

Standard deviation : $\sigma= \$\ 0.23$

The confidence interval for population mean is given by :_

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

$\text{i.e. }\$\ 3.13\pm (1.96)\dfrac{0.23}{\sqrt{36}}\\\\\approx\$\ 3.13\pm0.075\\\\=(\$\ 3.13-0.075,\$\ 3.13+0.075)=(\$\ 3.055,\$\ 3.205)$

Hence, the 95% confidence interval to estimate the population mean = ($3.055, $3.205)

3 0

3 years ago

There are approximately 39.37 iches in 1 meter. how many meters are in 170 inches

mel-nik [20]

170 divided by 39.37= 4.32 meter

6 0

3 years ago

How do you solve 5(N+4)/3 = N-8

Dmitriy789 [7]

Answer:

n=-22

Step-by-step explanation:

rewrite the equation as 5(n+4) = n-8

now distribute the 5 through the parentheses 5n+20 = n-8

multiply each side by 3 5n+20=3n - 24

subrtact 3n from both sides 5n+20=3n - 24

-3n -3n

2n+20=-24

then subtract 20 from each side 2n +20=-24

-20 -20

Giving you 2n=-44 then divide both sides by 2

2n=-44 Giving you n=-22

2 2

7 0

3 years ago

Evaluate the expression 4!

kow [346]

Answer:

Step-by-step explanation:

Using the definition of factorial

n! = n(n - 1)(n - 2) ....... × 3 × 2 × 1, hence

4! = 4 × 3 × 2 × 1 = 24

5 0

4 years ago

Read 2 more answers