Supplementary angles always add up to 180 degrees. TRUE OR FALSE

Which is the simplified form of the expression (co?x237) : (604x2")

sweet-ann [11.9K]

Answer: can you explain it more?

Step-by-step explanation:

6 0

2 years ago

PLS HELP ME ASAP. I don’t have time to do this. It also detects if it’s right or wrong.

nadezda [96]

Answer:

153.86

Step-by-step explanation:

3.14*7^2=153.86

6 0

2 years ago

The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i

Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis $p >0.3$

Step-by-step explanation:

We have the following info given from the problem:

$n= 800$ the random sample of voters selected from the town

$\hat p = 0.34$ represent the proportion of residents favored construction

$p_o = 0.30$ represent the value desired to test.

A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis $p >0.3$

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And with the data given we have:

$z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469$

7 0

2 years ago

Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations.

krok68 [10]

Answer:

(x, y, z) =(1, -1,2)

Step-by-step explanation:

.............

8 0

2 years ago

URGENT need answer quick

beks73 [17]

Answer:

Part A: x = 4.

Part B: The answer normally would be x = 12, but since your question asked why it has no real solution, it is because the solution (x=12) does not make the equaion true. Why? Because the value given from the equation that should make the equation true does not relate the equation in itself; hence making it have no solution.

5 0

2 years ago