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3 years ago

The radius of a circular track is 50 feet. How many feet of fencing

Mathematics

1 answer:

mina [271]3 years ago

6 0

314 feet of fencing

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What is the m Show work

Ghella [55]

Answer:

measure of angle A is 80 degree.

Step-by-step explanation:

isosceles triangle will have same base angles

first base angle is 50, and the second will also be 50

3 angles of a triangle will add up to be 180 degree.

A is the vertex angle.

So 50 + 50 + A = 180

100 + A = 180

A = 80.

8 0

2 years ago

A study claims that the mean age of online dating service users is 40 years. Some researchers think this is not accurate and wan

Mademuasel [1]

Answer: $H_0:\mu=40$

$H_0:\neq40$

Step-by-step explanation:

A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
An alternative hypothesis says that there is a statistical significance between two variables.

Claim 1. : Mean age of online dating service users is 40 years.

i.e. $\mu=40$ , since it has equals sign so we take this as null hypothesis.

Claim 2. : Mean age of online dating service users is not 40 years.

$\mu\neq40$

⇒ Null Hypothesis : $H_0:\mu=40$

Alternative hypothesis : $H_0:\neq40$

5 0

3 years ago

Name the congruent sides.

olga nikolaevna [1]

The answer is B.
Hope it helps!

4 0

3 years ago

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15 POINTS AND BRAINLY IF RIGHT ANSWER

KonstantinChe [14]

Answer: An equations is a number, a variable, or a combination of numbers and variables and operational symbols. An equation is made up of two expressions connected by an equal sign.

Example Expression: 8x+5y-3x-5

Example Equation: 5x-4=x

Hope this helps a little bit:)

3 0

3 years ago

Read 2 more answers

1/2 - 2/9 =<br><br>subtract. Simply if possible.

kozerog [31]

Answer:

$\frac{5}{18}$