Please answer this im so confused

Mathematics

1 answer:

-Dominant- [34]2 years ago

4 0

Step-by-step explanation:

Since,in question 21 the trspezium is an isoseles tapizium
therefore,9x-17=4x+28
5x=45
x=9
therefore q=9x-17
=9*9-17
=81-17
q=64
therefore 2t=360-128(since its isoseles triangle therefore adjacent base angles are equal)
2t=23
t=116

In question 28

2(K+M)=360
2(3x+16 + 11x-18)=360
2(14x-2)=360
28x-4=360
28x=364
x=13
J=K
Isoleses angles are equal
3x+16=J
39+16=J
J=55

In question 29

Bd=Ec (Congeruent sides of congurent trisnle are equal,BED~=CDE)
8x-27=2x+33
6x=60
x=10
Therefore,Bd=8x-27
Bd=80-27
Bd=53

You might be interested in

Which three angles with the given measures can be used to construct at least one triangle? 40°,20°,40° 45°,45°,45° 23°,23°,134°

goldenfox [79]

D is the answer :) hope this helped

3 0

2 years ago

Read 2 more answers

Suppose the daily customer volume at a call center has a normal distribution with mean 5,500 and standard deviation 1,000. What

lakkis [162]

Answer:

0.0665 = 6.65% probability that the call center will get between 4,800 and 5,000 calls in a day.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean 5,500 and standard deviation 1,000.

This means that $\mu = 5500, \sigma = 1000$