All categories

3 years ago

Find the value of: (° = 180°)

Mathematics

1 answer:

Svetllana [295]3 years ago

7 0

Step-by-step explanation:

it's my new id so you may ask questions here

You might be interested in

Find the midpoint of the line segment

strojnjashka [21]

Answer:

midpoint (5,4)

Step-by-step explanation:

The midpoint(M) of a segment with endpoints (x₁ , y₁) and ( x₂, y₂) is

where x₁ = 2 and x₂ = 8

y₁ = 0 and y₂ = 8

M = $\frac{x_1 + x_2}{2} ,\frac{y_1 + y_2}{2}$

M = $\frac{2 + 8}{2} ,\frac{0 + 8}{2}$

M = 5 , 4

5 0

3 years ago

Tim scored 35, 38, and 36 points on three tests. How many points should he get on the fourth test to get an average score of 40?

My name is Ann [436]

I think 51 because if you were to do it reverse then it would be 40x4=160 then -35-36-38 it would be 51.

4 0

3 years ago

10# A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like

ella [17]

ANSWER:

104

STEP-BY-STEP EXPLANATION:

Given:

Standard deviation (σ) = 700

Confidence level = 95%

Mean error (Eμ) = 135

We have for a confidence level of 95%:

$\begin{gathered} \alpha=100\%-95\%=5\%=0.05 \\ \\ \alpha\text{/2}=\frac{0.05}{2}=0.025 \\ \\ \text{ The corresponding Z value for \alpha/2 = 0.025 is as follows:} \\ \\ Z_{\alpha\text{/2}}=1.96 \end{gathered}$

Now, we calculate the minimum value of the sample size as follows:

$\begin{gathered} n=\left(\frac{Z_{\alpha\text{/2}}\cdot\sigma}{E}\right)^2 \\ \\ \text{ We replacing:} \\ \\ \:n=\left(\frac{1.96\cdot 700}{135}\right)^2 \\ \\ \:n=103.2858\cong104 \end{gathered}$

The minimum sample size needed is 104

3 0

1 year ago

.-- .... .- - .. ... ..--- .-.-. ..--- ..--..

Andrej [43]

Oh so easy!

The answer is 4!

The question is

WHAT IS 2+2?

It's written in morse code! I used to study it! :)

7 0

3 years ago

What is the equation of the line that passes through the point (5,0) and has a slope<br> of -1

erica [24]

Answer:

y = -x + 5

Step-by-step explanation:

X, Y, and B is given using fomula y = m(x) + b

Subsitute those variables.

0 = -(5) + b

Solve for m.

0 = -5 + b

+5 +5

b = 5.

Then plug in the b and take out the x and y.

y = -x + 5

8 0

3 years ago