3 years ago

Help please giving 15 points !!!!!!!

Mathematics

1 answer:

Lelu [443]3 years ago

5 0

I don’t know the answer

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To boost holiday sales, a jewelry store in Bismarck, North Dakota, is advertising the following promotion: "If more than seven i

REY [17]

Answer:

about 0.037

Step-by-step explanation:

A suitable probability calculator can provide the probability that 7 inches will be exceeded. It is about 0.036815.

The probability the store will have to refund money is about 0.037.

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2 years ago

A certain television is advertised as a 41-inch TV (the diagonal length). If the width of the TV is 40 inches, how many inches t

KengaRu [80]

Answer:

9 inches

Step-by-step explanation:

A^2+b^2=c^2 so

40^2+b^2=41^2

1600+b^2=1681

so b^2=81

so b=9

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3 years ago

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Are these triangles similar? if so, what postulate or theorem justifies that they are similar?

Karo-lina-s [1.5K]

Answer:

Yes The triangles are similar by SAS Similarity Theorem

Step-by-step explanation:

we know that

<u>Side-Angle-Side Similarity,</u> states that If an angle of a triangle is congruent to an angle of another triangle and if the included sides of these angles are proportional, then the two triangles are similar

In this problem

Angle L is congruent with Angle Z

Verify if the included sides are proportional

$\frac{LJ}{ZY}=\frac{KL}{XZ}$

substitute the values

$\frac{3}{1.5}=\frac{4}{2}$

$2=2$ -----> is true

therefore

The triangles are similar by SAS

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3 years ago

Nathaniel's sister has 5/6 as many songs on her MP3 player as he has on his MP3 player. His sister has 35 songs. How many songs

PtichkaEL [24]

He has 42 songs on his mp3 player.

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3 years ago

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Last year, a middle school band had 80 students. This year,

nlexa [21]

Pretty sure 40. i think its 40 because 120 divided by 80 is 1.5 which is half. so 80 divided by 2 = 40. not sure tho

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2 years ago

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