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Oduvanchick [21]
3 years ago
10

Help on number 1 ? :)

Mathematics
2 answers:
LiRa [457]3 years ago
6 0

Answer:

it would be the second opition

Step-by-step explanation:

ziro4ka [17]3 years ago
5 0

Answer:

Step-by-step explanation:

arc RL=2×51=102°

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Solve each inequality then graph the solution
Artist 52 [7]

Answer:

a is x>3

b is _> x/4 +12

c is x>-3

Step-by-step explanation: hope this helps

4 0
3 years ago
Sandy charges each family that she babysits for a flat fee of $10 for the night and $5 extra per
Pani-rosa [81]
30 = 5x + 10 so x = 4
5 0
3 years ago
5/8 of the staff are male. 5/12 of the staff works part time at the aquarium. What is the fraction of the staff being a female?
mestny [16]

Answer:3/8

Step-by-step explanation:

5/8 of the staff are male.  The entire staff is represented by the fraction 8/8.  Taking 5/8 from this, what we have left is

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5 0
3 years ago
The calibration of a scale is to be checked by weighing a 13 kg test specimen 25 times. Suppose that the results of different we
Natali5045456 [20]

Solution :

a).

Given : Number of times, n = 25

            Sigma, σ = 0.200 kg

            Weight, μ = 13 kg

Therefore the hypothesis should be tested are :

$H_0 : \mu = 13 $

$H_a : \mu \neq 13$

b). When the value of $\overline x = 12.84$

 Test statics :

   $Z=\frac{(\overline x - \mu)}{\frac{\sigma}{\sqrt n}} $

  $Z=\frac{(14.82-13)}{\frac{0.2}{\sqrt {25}}} $

          $=\frac{1.82}{0.04}$

          = 45.5  

P-value = 2 x P(Z > 45.5)

            = 2 x 1 -P (Z < 45.5) = 0

Reject the null hypothesis if P value  < α = 0.01 level of significance.

So reject the null hypothesis.

Therefore, we conclude that the true mean measured weight differs from 13 kg.

3 0
3 years ago
What is the answer and the work i have to do to get to it
harina [27]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
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