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3 years ago

12

which of the following questions (multiple answers) are the square roots for 529? check all that applies please I've been stuck

on this forever!

1 answer:

mr Goodwill [35]3 years ago

4 0

23 is one of the answers, and -23, because negative times negative is positive.

Hope this helps and have a nice day:)

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Georgianna claims that in a small city renowned for its music school, the average child takes at least 5 years of piano lessons.

Allisa [31]

Answer:

The condition are

The Null hypothesis is $H_o : \mu = 5$

The Alternative hypothesis is $H_a : \mu < 5$

The check revealed that

There is sufficient evidence to support the claim that in a small city renowned for its music school, the average child takes at least 5 years of piano lessons

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 5 \ year$

The sample size is n = 20

The sample mean is $\= x = 4.6 \ years$

The standard deviation is $\sigma = 2.2 \ years$

The Null hypothesis is $H_o : \mu = 5$

The Alternative hypothesis is $H_a : \mu < 5$

So i will be making use of $\alpha = 0.05$ level of significance to test this claim

The critical value of $\alpha$ from the normal distribution table is $Z_\alpha = 1.645$

Generally the test statistics is mathematically evaluated as

$t = \frac{\= x - \mu}{ \frac{\sigma }{\sqrt{n} } }$

substituting values

$t = \frac{ 4.6 - 5}{ \frac{2.2}{\sqrt{20} } }$

$t = -0.8131$

Looking at the value of t and $Z_{\alpha }$ we see that $t < Z_{\alpha }$ so we fail to reject the null hypothesis

This implies that there is sufficient evidence to support the claim that in a small city renowned for its music school, the average child takes at least 5 years of piano lessons.

4 0

3 years ago

What are the slopes of the asymptotes of a hyperbola with equation (y-2)^2/1^2 - (x-4)^2/3^2 = 1?

vladimir1956 [14]

Answer: 1/3 and -1/3

Step-by-step explanation:

8 0

3 years ago

Find the equation of the line which passes through the point

sammy [17]

Answer:

$y= \frac{1}{5}x- \frac{56}{5}$

Step-by-step explanation:

We want to find the equation of the line that goes through: !6,-10) and is perpendicular to the line

$5x + 3y = 2y - 3$

Let's simplify the equation of the line to get:

$3y - 2y = - 5x + 3$

$y = - 5x + 3$

The slope of this line is -5.

The perpendicular to this line has a slope of

$\frac{1}{5}$

The equation going through (6,-10) is

$y=m(x-x_1)+y_1$

We substitute to get;

$y= \frac{1}{5} (x-6) - 10$

Expand;

$y= \frac{1}{5}x- \frac{6}{5} - 10$

$y= \frac{1}{5}x- \frac{56}{5}$

7 0

3 years ago

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B

Dima020 [189]

Answer:

Step-by-step explanation:

y=3x+3, y=6x-6

6x-6=3x+3

3x=9

x=3

3 0

3 years ago

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45 POINTS At a high school football game, 4 out of every 7 students in line to buy a ticket wore a hat. If 350 students bought a

nataly862011 [7]

Step-by-step explanation:

Number of students who wore a hat

= 4/7 * Number of students who bought a ticket

= 4/7 * 350 students

= 200 students.

Number of students not wearing a hat

= Number of students who bought a ticket - Number of students who wore a hat

= 350 students - 200 students

= 150 students.

6 0

3 years ago

Read 2 more answers