3 years ago

23. Which equation represents the circle whose center

Mathematics

1 answer:

arlik [135]3 years ago

4 0

This is b I just took the test and passed

You might be interested in

5 1/4 divided by 1/3 =

shepuryov [24]

I think it's 1 3/4. I had one similar earlier.

5 0

2 years ago

Read 2 more answers

The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,00

ss7ja [257]

Answer:

The test statistics is $z = -1$

Step-by-step explanation:

From the question we are told that

The sample size is n = 100

The null hypothesis is $H_o : \mu = \$30000$

The alternative hypothesis is $H_a : \mu < \$ 30000$

The sample mean is $\= x = \$29,750$

The standard deviation is $\sigma = \$2,500$

The level of significance is $\alpha =0.05$

Generally the test statistics is mathematically represented as

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

=> $z = \frac{29750 - 30000 }{ \frac{ 2500}{ \sqrt{100} } }$

=> $z = -1$

7 0

2 years ago

Which two values of x are roots of the polynomial below? x2 + 3x - 5

lesya692 [45]

Answer:

Step-by-step explanation:

The roots are the values of x for which x² + 3x - 5 = 0.

Quadratic formula:

x = [-3±√(3²-4(1)(-5))]/(2·1) = [-3±√29]/2

3 0

2 years ago

Estimate 815-281 to get the answer

Damm [24]

Answer:800-300

Step-by-step explanation:

since there is a 1 after the 8 it would go down to 800 and there is a 8 after the 2 so it would go up to 300

4 0

3 years ago

Read 2 more answers

Need help asap From top to bottom A B C D E

NNADVOKAT [17]

Answer:

B and D

Step-by-step explanation:

8 0

3 years ago