Enter all answers to the nearest tenth.

Mathematics

1 answer:

rodikova [14]3 years ago

4 0

Answer:

What is the probability the mean of his sample will be between $70.00 and $80.00? = 64/64 =1

s1) = 99% =z score = 127/128

s2)64/64 = 1

s3)95% of 64 = 123/128

s4) p) step 3 = 95% of 64 = 60.08 /64 = 60/64 = 93.75%

s5) P)of 2+4 = 283/292 = 96.92%

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A subtending arc on a circle with a radius of 4.5 centimeters has an arc length of 8π. The measure of the angle subtended by the

ella [17]

For the answer to the question above,

the angle of 360 ° → π.d 

the angle of x ° → 8π 

You make the cross-multiply and you can get: 

x * π.d = 8π * 360 

x * d = 8 * 360 

x = 8 * 360/d → where d = 2r 

x = 8 * 360/2r 

x = 4 * 360/r → where r = 4.5 cm 

x = 4 * 360/4.5 

x = 320 °

3 0

3 years ago

What is 13x -4+100=180

Naddika [18.5K]

Answer: x = 6.46153846

Step-by-step explanation:

We are given the equation 13x - 4 +100 = 180, and we must find the value of x. In order to do that get x on on one side by itself and a constant on the other side by itself.

This first step is to combine like terms. 13x is by itself. -4 + 100 = 96. This gives us the equation 13x +96 = 180.

In order to get x by itself, subtract 96 from each side of the equation. This gives us the equation 13x = 84.

Next, divide each side by 13 to find x. This gives us x = 6.46153846

$13x - 4 +100=180$