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3 years ago

10

Jay is measuring the sides and angles of a number of triangles looking for a triangle that is congruent to triangle XYZ below wh

ich set of side light has could come from a congruent triangle

1 answer:

sergey [27]3 years ago

7 0

Answer:

correct answer is B.

Step-by-step explanation:

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Normally a new cell phone costs $500 you only have 450 to spend what happened what percent do you need the phone to be discounte

alina1380 [7]

450/500 how much you have to how much it costs
this equals to 90 % of the complete cost

100%-90%=10%

you need a 10 % discount

hope this helps

5 0

3 years ago

In a metal fabrication process, metal rods are produced to a specified target length of 15 feet. Suppose that the lengths are n

Leto [7]

Answer:

95% Confidence interval: (14.4537 ,15.1463)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 15 feet

Sample mean, $\bar{x}$ = 14.8 feet

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, σ = 0.65 feet

Degree of freedom = n - 1 = 15

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 15 and}~\alpha_{0.05} = \pm 2.1314$

$14.8 \pm 2.1314(\dfrac{0.65}{\sqrt{16}} ) \\\\= 14.8 \pm 0.3463 = (14.4537 ,15.1463)$

is the required confidence interval for the true mean length of rods.

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3 years ago

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The number of lines of symmetry of an equilateral triangle is _______.

Reika [66]

Answer:

An equilateral triangle has three lines of symmetr

Step-by-step explanation:

letter d

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3 years ago

How many 1 quart containers of milk did the cafeteria ues

user100 [1]

Pls provide the complete question.

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Five points are plotted on a cm grid.The 5 points are 5 vertices of a hexagon. Each side of the hexagon has the same length.Work

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Answer:

(13, 5)

Step-by-step explanation:

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2 years ago