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rodikova [14]
3 years ago
10

I have a strange True or False question on my packet.. But here I go: "A trapezoid has two 90 degree angles." Is it true or fals

e?
Mathematics
1 answer:
alex41 [277]3 years ago
8 0

Answer:

False unless a right trapezoid.

Step-by-step explanation:

All trapezoids have 4 angles which add to 360 degrees. The angles can be any measure except in a right trapezoid which does have two 90 degree angles. It is not a requirement to be a trapezoid though so this is false.

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la pyramide du Louvre cest une pyramide a base carrée de 35,4m de large et de 21,6m de haut calculer l'inclinaison dune face par
MrRissso [65]

Answer:

c'est une pyramide régulière à base carrée de35.4 m de large et de 21.6 m de haut. calculer l'inclinaison d'une face par rapport à l'horizontale. ... dans le triangle rectangle SHA: tg SAH = 21,6/17,7 donc l'angle SAH = 50,66° ...

Step-by-step explanation:

7 0
3 years ago
When purchasing bulk orders of​ batteries, a toy manufacturer uses this acceptance sampling​ plan: Randomly select and test 56 b
nydimaria [60]

Answer:

98.1% chance of being accepted

Step-by-step explanation:

Given:

sample size,n=56

acceptance condition= at most 2 batteries do not meet specifications

shipment size=7000

battery percentage in shipment that do not meet specification= 1%

Applying binomial distribution

<h3>P(x)=∑ᵇₐ=₀ (n!/a!(n-a)!)p^a (1-p)^(n-a)</h3>

In this formula, a is the acceptable number of defectives;

 n is the sample size; 

p is the fraction of defectives in the population.  

Now putting the value

a= 2

n=56

p=0.01

\frac{56!}{0!\left(56-0\right)!}\left(0.01\right)^0\:\left(1-0.01\right)^{\left(56-0\right)} + \frac{56!}{1!\left(56-1\right)!}\left(0.01\right)^1\:\left(1-0.01\right)^{\left(56-1\right)} +\:\frac{56!}{2!\left(56-2\right)!}\left(0.01\right)^2\:\left(1-0.01\right)^{\left(56-2\right)}

=0.56960+0.32219+0.08949

After summation, we get 0.981 i.e. a 98.1% chance of being accepted.  As this is such a high chance, we can expect many of the shipments like this to be accepted!

7 0
3 years ago
Please help! REWARDING BRAINLIEST FOR BEST ANSWER
Mashcka [7]

The difference in salary is 36000-28000=8000

The difference in annual increase is 3000-2000=1000

Therefore it takes 8000/1000= 8 years to catch up.

At the end of eight years,

Salary with the first company = 28000+8*3000=52000

Salary with the second company = 36000+8*2000=52000


6 0
3 years ago
1. A pair of designer sneakers was purchased for $120. Since they were purchased, their price has increased by 15%. What is the
SCORPION-xisa [38]

Answer:

138$

Step-by-step explanation:

120$. Increased by 15%.

Since 15% equals to 0.15, you multiply 0.15 by the price.

0.15*120=18.

Then you ADD the 15%.

120+18=138

The new price is now 138$

4 0
3 years ago
Read 2 more answers
What is an equation that represents the linear
horsena [70]

The equation that represents the linear function is y = 2x.

<h3>Linear equation</h3>

A linear equation is in the form:

y = mx + b

Where y, x are variables, m is the rate of change and b is the y intercept.

Let us assume that from the table, we get the data with points (0, 0) and (2, 4). Hence:

y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-0=\frac{4-0}{2-0} (x-0)\\\\y=2x

The equation that represents the linear function is y = 2x.

Find out more on Linear equation at: brainly.com/question/13763238

4 0
2 years ago
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